Zone Forecast

.REST OF TONIGHT...CLEAR. PATCHY FOG DURING THE PREDAWN HOURS.
LOWS IN THE UPPER 60S. LIGHT AND VARIABLE WINDS.
.THURSDAY...MOSTLY SUNNY. HOT. HIGHS IN THE LOWER 90S. HIGHEST
HEAT INDEX READINGS 95 TO 100 IN THE AFTERNOON. LIGHT AND
VARIABLE WINDS EARLY IN THE MORNING BECOMING SOUTH 10 TO 15 MPH
IN THE LATE MORNING AND AFTERNOON.
.THURSDAY NIGHT...MOSTLY CLEAR. WARM. LOWS IN THE MID 70S.
SOUTHWEST WINDS 10 TO 15 MPH.
.FRIDAY...PARTLY SUNNY. A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. CONTINUED HOT. HIGHS IN THE LOWER
90S. HIGHEST HEAT INDEX READINGS 95 TO 100 IN THE AFTERNOON.
SOUTHWEST WINDS 10 TO 20 MPH.
.FRIDAY NIGHT...MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF
SHOWERS. LOWS IN THE UPPER 60S. WEST WINDS AROUND 10 MPH IN THE
EVENING SHIFTING TO THE NORTH AFTER MIDNIGHT.
.SATURDAY...MOSTLY CLOUDY. A 20 PERCENT CHANCE OF SHOWERS IN THE
MORNING. HIGHS IN THE UPPER 70S.
.SATURDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF
SHOWERS. LOWS IN THE LOWER 60S.
.SUNDAY...MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
.SUNDAY NIGHT THROUGH WEDNESDAY...MOSTLY CLEAR. LOWS IN THE LOWER
50S. HIGHS IN THE LOWER 70S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THE INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT OFFICE OF AIR
QUALITY HAS DECLARED THURSDAY SEPTEMBER 1ST AN AIR POLLUTION
ACTION DAY FOR NORTHWEST INDIANA DUE TO ELEVATED OZONE LEVELS.

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS OVER MAINLY NORTH
CENTRAL AND FAR NORTHERN ILLINOIS FRIDAY AFTERNOON...AND OVER MUCH
OF THE REMAINDER OF NORTHERN ILLINOIS AND NORTHWEST INDIANA FRIDAY
NIGHT. THERE WILL BE A LINGERING CHANCE OF THUNDERSTORMS SATURDAY...
MAINLY SOUTH OF A LINE FROM APPROXIMATELY PONTIAC ILLINOIS TO
GARY INDIANA.

THERE IS AN INCREASED RISK FOR RIP CURRENTS ALONG THE INDIANA AND
ILLINOIS SHORES OF LAKE MICHIGAN FROM SUNDAY AFTERNOON THROUGH
MONDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Test Message

THIS IS THE WEEKLY TEST OF THE WXWARN1 ALERT SYSTEM THIS IS ONLY A TEST

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

HEAT INDEX READINGS COULD APPROACH 100 DEGREES THURSDAY AND
FRIDAY AFTERNOONS.

A PERIOD OR TWO OF THUNDERSTORMS WILL BE POSSIBLE FRIDAY NIGHT
THROUGH SATURDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.REST OF TODAY...MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS
AROUND 10 MPH IN THE LATE MORNING AND EARLY AFTERNOON BECOMING
LIGHT AND VARIABLE LATE IN THE AFTERNOON.
.TONIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 60S. LIGHT AND
VARIABLE WINDS.
.THURSDAY...MOSTLY SUNNY. HOT. HIGHS IN THE LOWER 90S. LIGHT AND
VARIABLE WINDS EARLY IN THE MORNING BECOMING SOUTH 10 TO 15 MPH
IN THE LATE MORNING AND AFTERNOON.
.THURSDAY NIGHT...MOSTLY CLEAR. WARM. LOWS IN THE MID 70S. SOUTH
WINDS 10 TO 15 MPH.
.FRIDAY...PARTLY CLOUDY. A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. BREEZY. CONTINUED HOT. HIGHS IN
THE LOWER 90S. HIGHEST HEAT INDEX READINGS 95 TO 100 IN THE
AFTERNOON. SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS UP TO 30 MPH
AT TIMES.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 40 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 60S.
.SATURDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS AROUND 80.
.SATURDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF
SHOWERS. LOWS AROUND 60.
.SUNDAY THROUGH TUESDAY...MOSTLY CLEAR. HIGHS AROUND 70. LOWS IN
THE LOWER 50S.

Zone Forecast

.TODAY...MOSTLY CLOUDY UNTIL LATE AFTERNOON THEN BECOMING MOSTLY
SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND 10 MPH UNTIL LATE
AFTERNOON BECOMING LIGHT AND VARIABLE LATE IN THE AFTERNOON.
.TONIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 60S. LIGHT AND
VARIABLE WINDS.
.THURSDAY...MOSTLY SUNNY. HOT. HIGHS IN THE LOWER 90S. LIGHT AND
VARIABLE WINDS EARLY IN THE MORNING BECOMING SOUTH 10 TO 15 MPH
IN THE LATE MORNING AND AFTERNOON.
.THURSDAY NIGHT...MOSTLY CLEAR. WARM. LOWS IN THE MID 70S. SOUTH
WINDS 10 TO 15 MPH.
.FRIDAY...PARTLY CLOUDY. A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. BREEZY. CONTINUED HOT. HIGHS IN
THE LOWER 90S. HIGHEST HEAT INDEX READINGS 95 TO 100 IN THE
AFTERNOON. SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS UP TO 30 MPH
AT TIMES.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 40 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 60S.
.SATURDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS AROUND 80.
.SATURDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF
SHOWERS. LOWS AROUND 60.
.SUNDAY THROUGH TUESDAY...MOSTLY CLEAR. HIGHS AROUND 70. LOWS IN
THE LOWER 50S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

HEAT INDEX READINGS COULD APPROACH 100 DEGREES THURSDAY AND FRIDAY
AFTERNOONS.

A PERIOD OR TWO OF THUNDERSTORMS WILL BE POSSIBLE FRIDAY NIGHT
THROUGH SATURDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.REST OF TONIGHT...SHOWERS LATE IN THE EVENING...THEN A CHANCE OF
SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER 60S. SOUTHEAST WINDS
AROUND 10 MPH. CHANCE OF PRECIPITATION 100 PERCENT.
.WEDNESDAY...PARTLY SUNNY. A 20 PERCENT CHANCE OF SHOWERS IN THE
MORNING. HIGHS IN THE LOWER 80S. SOUTH WINDS 10 TO 15 MPH.
.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 60S. LIGHT AND
VARIABLE WINDS.
.THURSDAY...MOSTLY SUNNY. HOT. HIGHS AROUND 90. SOUTH WINDS 10 TO
15 MPH.
.THURSDAY NIGHT...MOSTLY CLEAR. WARM. LOWS IN THE LOWER 70S.
SOUTH WINDS AROUND 10 MPH.
.FRIDAY...PARTLY CLOUDY. A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 90S.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 60S.
.SATURDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS AROUND 80.
.SATURDAY NIGHT...PARTLY CLOUDY WITH A 40 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS AROUND 60.
.SUNDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS.
HIGHS IN THE MID 70S.
.SUNDAY NIGHT THROUGH TUESDAY...MOSTLY CLEAR. LOWS IN THE LOWER
50S. HIGHS IN THE UPPER 60S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS SOUTH OF INTERSTATE 80
LATE TONIGHT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

A PERIOD OR TWO OF THUNDERSTORMS WILL BE POSSIBLE FRIDAY NIGHT
THROUGH SATURDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.THIS AFTERNOON...MOSTLY CLOUDY. A 30 PERCENT CHANCE OF SHOWERS
LATE IN THE AFTERNOON. HIGHS IN THE MID 70S. SOUTHEAST WINDS
AROUND 10 MPH.
.TONIGHT...CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. LIGHT AND VARIABLE WINDS UNTIL EARLY MORNING
BECOMING SOUTHEAST AROUND 10 MPH DURING THE PREDAWN HOURS.
.WEDNESDAY...PARTLY SUNNY. A 20 PERCENT CHANCE OF SHOWERS IN THE
MORNING. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS AROUND 10 MPH.
.WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 60S. LIGHT
AND VARIABLE WINDS.
.THURSDAY...MOSTLY SUNNY. HOT. HIGHS AROUND 90. SOUTH WINDS 10 TO
20 MPH.
.THURSDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 70S.
.FRIDAY...MOSTLY SUNNY. A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 90S.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 60S.
.SATURDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S.
.SATURDAY NIGHT...PARTLY CLOUDY WITH A 40 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 50S.
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE LOWER 70S.
LOWS IN THE LOWER 50S.
.LABOR DAY...PARTLY CLOUDY. HIGHS IN THE MID 60S.

Zone Forecast

.REST OF TODAY...MOSTLY CLOUDY. A 30 PERCENT CHANCE OF SHOWERS
LATE IN THE AFTERNOON. HIGHS IN THE MID 70S. SOUTH WINDS AROUND
10 MPH.
.TONIGHT...CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. LIGHT AND VARIABLE WINDS UNTIL EARLY MORNING
BECOMING SOUTHEAST AROUND 10 MPH DURING THE PREDAWN HOURS.
.WEDNESDAY...PARTLY SUNNY. A 20 PERCENT CHANCE OF SHOWERS IN THE
MORNING. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS AROUND 10 MPH.
.WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 60S. LIGHT
AND VARIABLE WINDS.
.THURSDAY...MOSTLY SUNNY. HOT. HIGHS AROUND 90. SOUTH WINDS 10 TO
20 MPH.
.THURSDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 70S.
.FRIDAY...MOSTLY SUNNY. A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 90S.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 60S.
.SATURDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S.
.SATURDAY NIGHT...PARTLY CLOUDY WITH A 40 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 50S.
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE LOWER 70S.
LOWS IN THE LOWER 50S.
.LABOR DAY...PARTLY CLOUDY. HIGHS IN THE MID 60S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

A PERIOD OR TWO OF THUNDERSTORMS WILL BE POSSIBLE FRIDAY NIGHT
THROUGH SATURDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.TODAY...MOSTLY CLOUDY. HIGHS IN THE UPPER 70S. LIGHT AND
VARIABLE WINDS EARLY IN THE MORNING BECOMING SOUTH AROUND 10 MPH
IN THE LATE MORNING AND AFTERNOON.
.TONIGHT...CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. LIGHT AND VARIABLE WINDS UNTIL EARLY MORNING
BECOMING SOUTHEAST AROUND 10 MPH DURING THE PREDAWN HOURS.
.WEDNESDAY...PARTLY SUNNY. A 20 PERCENT CHANCE OF SHOWERS IN THE
MORNING. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS AROUND 10 MPH.
.WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 60S. LIGHT
AND VARIABLE WINDS.
.THURSDAY...MOSTLY SUNNY. HOT. HIGHS AROUND 90. SOUTH WINDS 10 TO
20 MPH.
.THURSDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 70S.
.FRIDAY...MOSTLY SUNNY. A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 90S.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 60S.
.SATURDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S.
.SATURDAY NIGHT...PARTLY CLOUDY WITH A 40 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 50S.
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE LOWER 70S.
LOWS IN THE LOWER 50S.
.LABOR DAY...PARTLY CLOUDY. HIGHS IN THE MID 60S.

Zone Forecast

.REST OF TONIGHT...MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT AND
VARIABLE WINDS.
.TUESDAY...PARTLY CLOUDY. HIGHS IN THE UPPER 70S. LIGHT AND
VARIABLE WINDS EARLY IN THE MORNING BECOMING SOUTH AROUND 10 MPH
IN THE LATE MORNING AND AFTERNOON.
.TUESDAY NIGHT...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S. LIGHT AND
VARIABLE WINDS.
.WEDNESDAY...PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS AROUND
10 MPH.
.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 60S. LIGHT AND
VARIABLE WINDS.
.THURSDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 80S.
.THURSDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 70S.
.FRIDAY...MOSTLY SUNNY. HIGHS IN THE LOWER 90S.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS AROUND 70.
.SATURDAY AND SATURDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT
CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE LOWER 80S. LOWS
AROUND 60.
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE MID 70S.
LOWS IN THE MID 50S.
.LABOR DAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS.
HIGHS IN THE UPPER 60S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THERE IS A CHANCE OF THUNDERSTORMS FOR THE ENTIRE AREA TUESDAY
AFTERNOON THROUGH WEDNESDAY AFTERNOON...THEN AGAIN FRIDAY NIGHT
THROUGH SUNDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.TONIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT AND
VARIABLE WINDS.
.TUESDAY...PARTLY CLOUDY. HIGHS IN THE UPPER 70S. LIGHT AND
VARIABLE WINDS EARLY IN THE MORNING BECOMING SOUTH AROUND 10 MPH
IN THE LATE MORNING AND AFTERNOON.
.TUESDAY NIGHT...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S. LIGHT AND
VARIABLE WINDS.
.WEDNESDAY...PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS AROUND
10 MPH.
.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 60S. LIGHT AND
VARIABLE WINDS.
.THURSDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 80S.
.THURSDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 70S.
.FRIDAY...MOSTLY SUNNY. HIGHS IN THE LOWER 90S.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS AROUND 70.
.SATURDAY AND SATURDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT
CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE LOWER 80S. LOWS
AROUND 60.
.SUNDAY AND SUNDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE MID 70S.
LOWS IN THE MID 50S.
.LABOR DAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS.
HIGHS IN THE UPPER 60S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THERE IS A CHANCE OF THUNDERSTORMS TUESDAY NIGHT AND WEDNESDAY
THEN AGAIN FRIDAY NIGHT THROUGH SUNDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.REST OF TONIGHT...MOSTLY CLOUDY LATE IN THE EVENING THEN
CLEARING. LOWS IN THE MID 50S. LIGHT AND VARIABLE WINDS.
.MONDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT AND
VARIABLE WINDS.
.MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT AND
VARIABLE WINDS.
.TUESDAY...PARTLY CLOUDY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 10 MPH.
.TUESDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S. LIGHT AND
VARIABLE WINDS.
.WEDNESDAY...PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S.
.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 60S.
.THURSDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 80S.
.THURSDAY NIGHT AND FRIDAY...MOSTLY CLEAR. LOWS IN THE LOWER 70S.
HIGHS IN THE LOWER 90S.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 60S.
.SATURDAY AND SATURDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT
CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE LOWER 80S. LOWS
IN THE LOWER 60S.
.SUNDAY...PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS IN
THE UPPER 70S.

Zone Forecast

.REST OF TONIGHT...MOSTLY CLOUDY UNTIL EARLY MORNING THEN
CLEARING. LOWS IN THE MID 50S. LIGHT AND VARIABLE WINDS.
.MONDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT AND
VARIABLE WINDS.
.MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT AND
VARIABLE WINDS.
.TUESDAY...PARTLY CLOUDY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 10 MPH.
.TUESDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S. LIGHT AND
VARIABLE WINDS.
.WEDNESDAY...PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S.
.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 60S.
.THURSDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 80S.
.THURSDAY NIGHT AND FRIDAY...MOSTLY CLEAR. LOWS IN THE LOWER 70S.
HIGHS IN THE LOWER 90S.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 60S.
.SATURDAY AND SATURDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT
CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE LOWER 80S. LOWS
IN THE LOWER 60S.
.SUNDAY...PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS IN
THE UPPER 70S.

Zone Forecast

.TONIGHT...PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT AND VARIABLE
WINDS.
.MONDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT AND
VARIABLE WINDS.
.MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT AND
VARIABLE WINDS.
.TUESDAY...PARTLY CLOUDY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 10 MPH.
.TUESDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S. LIGHT AND
VARIABLE WINDS.
.WEDNESDAY...PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S.
.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 60S.
.THURSDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 80S.
.THURSDAY NIGHT AND FRIDAY...MOSTLY CLEAR. LOWS IN THE LOWER 70S.
HIGHS IN THE LOWER 90S.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 60S.
.SATURDAY AND SATURDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT
CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE LOWER 80S. LOWS
IN THE LOWER 60S.
.SUNDAY...PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS IN
THE UPPER 70S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS AN INCREASED RISK FOR RIP CURRENTS ALONG THE ILLINOIS
AND INDIANA SHORES OF LAKE MICHIGAN THROUGH THIS EVENING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THERE IS A CHANCE OF THUNDERSTORMS TUESDAY AFTERNOON AND TUESDAY
NIGHT AND AGAIN FRIDAY NIGHT AND SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.REST OF TODAY...PARTLY CLOUDY. HIGHS IN THE MID 70S. NORTH WINDS
AROUND 10 MPH.
.TONIGHT...PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT AND VARIABLE
WINDS.
.MONDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT AND
VARIABLE WINDS.
.MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT AND
VARIABLE WINDS.
.TUESDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S. SOUTH WINDS AROUND 10 MPH.
.TUESDAY NIGHT...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S.
.WEDNESDAY...PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S.
.WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 60S.
.THURSDAY AND THURSDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE UPPER
80S. LOWS IN THE LOWER 70S.
.FRIDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 90S.
.FRIDAY NIGHT AND SATURDAY...PARTLY CLOUDY WITH A 30 PERCENT
CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S. HIGHS
AROUND 80.

Zone Forecast

.TODAY...MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHEAST WINDS
AROUND 10 MPH.
.TONIGHT...PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT AND VARIABLE
WINDS.
.MONDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT AND
VARIABLE WINDS.
.MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT AND
VARIABLE WINDS.
.TUESDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S. SOUTH WINDS AROUND 10 MPH.
.TUESDAY NIGHT...MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S.
.WEDNESDAY...PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S.
.WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 60S.
.THURSDAY AND THURSDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE UPPER
80S. LOWS IN THE LOWER 70S.
.FRIDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 90S.
.FRIDAY NIGHT AND SATURDAY...PARTLY CLOUDY WITH A 30 PERCENT
CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S. HIGHS
AROUND 80.

Zone Forecast

.REST OF TONIGHT...MOSTLY CLEAR. LOWS IN THE MID 50S. NORTHEAST
WINDS AROUND 10 MPH.
.SUNDAY...MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
10 MPH.
.SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT AND
VARIABLE WINDS.
.MONDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT AND
VARIABLE WINDS.
.MONDAY NIGHT...PARTLY CLOUDY. LOWS AROUND 60. LIGHT AND VARIABLE
WINDS.
.TUESDAY...PARTLY SUNNY. HIGHS AROUND 80.
.TUESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 60S.
.WEDNESDAY...PARTLY CLOUDY. HIGHS IN THE LOWER 80S.
.WEDNESDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S.
.THURSDAY AND THURSDAY NIGHT...PARTLY CLOUDY. HIGHS IN THE UPPER
80S. LOWS IN THE LOWER 70S.
.FRIDAY...PARTLY CLOUDY. A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 80S.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 60S.
.SATURDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 70S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST
ILLINOIS...AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

THE WILL BE AN INCREASED RISK OF RIP CURRENTS ALONG THE ILLINOIS
AND INDIANA SHORES TONIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

THE INCREASED RISK OF RIP CURRENTS ALONG THE ILLINOIS AND INDIANA
SHORES WILL PERSIST THROUGH SUNDAY AND INTO SUNDAY EVENING.

THERE IS A CHANCE OF THUNDERSTORMS TUESDAY NIGHT SOUTHWEST OF A
ROCK FALLS TO OTTAWA TO WATSEKA LINE.

THERE WILL BE A CHANCE OF THUNDERSTORMS FRIDAY NIGHT INTO SATURDAY
MORNING ACROSS THE ENTIRE AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST
ILLINOIS...AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

THE WILL BE AN INCREASED RISK OF RIP CURRENTS ALONG THE ILLINOIS
AND INDIANA SHORES TONIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

THE INCREASED RISK OF RIP CURRENTS ALONG THE ILLINOIS AND INDIANA
SHORES WILL PERSIST THROUGH SUNDAY AND INTO SUNDAY EVENING.

THERE IS A CHANCE OF THUNDERSTORMS TUESDAY NIGHT SOUTHWEST OF A
ROCK FALLS TO OTTAWA TO WATSEKA LINE.

THERE WILL E A CHANCE OF THUNDERSTORMS FRIDAY NIGHT INTO SATURDAY
MORNING ACROSS THE ENTIRE AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST
ILLINOIS...AND NORTHWEST INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THE WILL BE AN INCREASED RISK OF RIP CURRENTS ALONG THE ILLINOIS
AND INDIANA SHORES THIS AFTERNOON AND TONIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

THE WILL BE AN INCREASED RISK OF RIP CURRENTS ALONG THE ILLINOIS
AND INDIANA SHORES SUNDAY AND SUNDAY EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.REST OF TODAY...MOSTLY SUNNY. HIGHS IN THE LOWER 80S. NORTH
WINDS 10 TO 15 MPH.
.TONIGHT...CLEAR. LOWS IN THE UPPER 50S. NORTHEAST WINDS AROUND
10 MPH IN THE EVENING BECOMING LIGHT AND VARIABLE AFTER MIDNIGHT.
.SUNDAY...MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHEAST WINDS
AROUND 10 MPH.
.SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT AND
VARIABLE WINDS.
.MONDAY...PARTLY CLOUDY. HIGHS IN THE UPPER 70S. LIGHT AND
VARIABLE WINDS IN THE MORNING BECOMING SOUTHWEST AROUND 10 MPH IN
THE AFTERNOON.
.MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 60S.
.TUESDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS AROUND 80.
.TUESDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 60S.
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT
CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE LOWER 80S. LOWS
IN THE UPPER 60S.
.THURSDAY AND THURSDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE UPPER
80S. LOWS IN THE LOWER 70S.
.FRIDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 80S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TODAY AND TONIGHT.

THE WILL BE AN INCREASED RISK OF RIP CURRENTS ALONG THE ILLINOIS
AND INDIANA SHORES THROUGH THIS EVENING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

THE WILL BE AN INCREASED RISK OF RIP CURRENTS ALONG THE ILLINOIS
AND INDIANA SHORES THROUGH SUNDAY EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.TODAY...MOSTLY CLEAR. PATCHY FOG EARLY IN THE MORNING. HIGHS
AROUND 80. LIGHT AND VARIABLE WINDS DURING THE PREDAWN HOURS
BECOMING NORTH 10 TO 15 MPH.
.TONIGHT...CLEAR. LOWS IN THE UPPER 50S. NORTHEAST WINDS AROUND
10 MPH IN THE EVENING BECOMING LIGHT AND VARIABLE AFTER MIDNIGHT.
.SUNDAY...MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHEAST WINDS
AROUND 10 MPH.
.SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT AND
VARIABLE WINDS.
.MONDAY...PARTLY CLOUDY. HIGHS IN THE UPPER 70S. LIGHT AND
VARIABLE WINDS IN THE MORNING BECOMING SOUTHWEST AROUND 10 MPH IN
THE AFTERNOON.
.MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 60S.
.TUESDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS AROUND 80.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...PARTLY CLOUDY WITH A
20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE MID
60S. HIGHS IN THE LOWER 80S.
.THURSDAY AND THURSDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE UPPER
80S. LOWS IN THE LOWER 70S.
.FRIDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 80S.

Zone Forecast

.TODAY...MOSTLY SUNNY. HIGHS AROUND 80. NORTH WINDS 10 TO 15 MPH.
.TONIGHT...CLEAR. LOWS IN THE MID 50S. NORTHEAST WINDS AROUND
10 MPH IN THE EVENING BECOMING LIGHT AND VARIABLE AFTER MIDNIGHT.
.SUNDAY...MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHEAST WINDS
AROUND 10 MPH.
.SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT AND
VARIABLE WINDS.
.MONDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT AND
VARIABLE WINDS IN THE MORNING BECOMING SOUTHWEST AROUND 10 MPH IN
THE AFTERNOON.
.MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 60S.
.TUESDAY...MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS AROUND 80.
.TUESDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 60S.
.WEDNESDAY AND WEDNESDAY NIGHT...MOSTLY CLEAR WITH A 20 PERCENT
CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE LOWER 80S. LOWS
IN THE UPPER 60S.
.THURSDAY AND THURSDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE UPPER
80S. LOWS IN THE LOWER 70S.
.FRIDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 80S.

Zone Forecast

.REST OF TONIGHT...PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
AND VARIABLE WINDS BECOMING NORTHWEST AROUND 10 MPH DURING THE
PREDAWN HOURS.
.SATURDAY...MOSTLY SUNNY. HIGHS AROUND 80. NORTH WINDS 10 TO
15 MPH.
.SATURDAY NIGHT...CLEAR. LOWS IN THE MID 50S. NORTHEAST WINDS
AROUND 10 MPH IN THE EVENING BECOMING LIGHT AND VARIABLE AFTER
MIDNIGHT.
.SUNDAY...MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHEAST WINDS
AROUND 10 MPH.
.SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT AND
VARIABLE WINDS.
.MONDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
.MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 60S.
.TUESDAY...MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS AROUND 80.
.TUESDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 60S.
.WEDNESDAY THROUGH THURSDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE
MID 80S. LOWS AROUND 70.
.FRIDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 80S.

Zone Forecast

.TONIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT AND
VARIABLE WINDS UNTIL EARLY MORNING BECOMING NORTHWEST AROUND
10 MPH DURING THE PREDAWN HOURS.
.SATURDAY...MOSTLY SUNNY. HIGHS AROUND 80. NORTH WINDS 10 TO
15 MPH.
.SATURDAY NIGHT...CLEAR. LOWS IN THE MID 50S. NORTHEAST WINDS
AROUND 10 MPH IN THE EVENING BECOMING LIGHT AND VARIABLE AFTER
MIDNIGHT.
.SUNDAY...MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHEAST WINDS
AROUND 10 MPH.
.SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT AND
VARIABLE WINDS.
.MONDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
.MONDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 60S.
.TUESDAY...MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS AROUND 80.
.TUESDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 60S.
.WEDNESDAY THROUGH THURSDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE
MID 80S. LOWS AROUND 70.
.FRIDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 80S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST
ILLINOIS...AND NORTHWEST INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THE PROBABILITY OF WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Short Term Weather

.NOW...

AREAS OF PATCHY TO OCCASIONALLY DENSE GROUND FOG HAVE DEVELOPED
ACROSS THE REGION THIS MORNING. VISIBILITIES MAY BE REDUCED TO ONE
QUARTER MILE OR LESS IN THE THICKEST OF FOG...BUT WILL QUICKLY
IMPROVE BEYOND SUNRISE THIS MORNING.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THE PROBABILITY OF WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST
ILLINOIS...AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

THERE IS AN INCREASED RISK FOR RIP CURRENTS ALONG THE SHORES OF
NORTHWEST INDIANA THROUGH MID EVENING.

PATCHY FOG WILL DEVELOP OVERNIGHT OUTSIDE OF THE HIGHLY URBANIZED
AREAS. VISIBILITY WHILE DRIVING MAY DROP DRAMATICALLY IF YOU
DRIVE INTO A PATCH OF DENSE FOG.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

THE PROBABILITY OF WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST
ILLINOIS...AND NORTHWEST INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS AN INCREASED RISK FOR RIP CURRENTS ALONG THE SHORES OF
NORTHWEST INDIANA THROUGH THE EARLY EVENING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS SUNDAY NIGHT THROUGH
MONDAY...AND AGAIN EARLY WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.REST OF TODAY...SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 10 MPH.
.TONIGHT...CLEAR. LOWS IN THE UPPER 50S. LIGHT AND VARIABLE
WINDS.
.FRIDAY...SUNNY. HIGHS IN THE LOWER 80S. LIGHT AND VARIABLE WINDS
IN THE MORNING BECOMING SOUTHWEST AROUND 10 MPH IN THE AFTERNOON.
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 60S. LIGHT AND
VARIABLE WINDS IN THE EVENING BECOMING NORTHWEST AROUND 10 MPH
AFTER MIDNIGHT.
.SATURDAY...MOSTLY SUNNY. HIGHS AROUND 80. NORTH WINDS AROUND
10 MPH.
.SATURDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 50S.
.SUNDAY...MOSTLY SUNNY. HIGHS IN THE MID 70S.
.SUNDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 50S.
.MONDAY...PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE MID 70S.
.MONDAY NIGHT AND TUESDAY...PARTLY CLOUDY. LOWS IN THE UPPER 50S.
HIGHS IN THE UPPER 70S.
.TUESDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S.
.WEDNESDAY...MOSTLY SUNNY. HIGHS AROUND 80.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TODAY AND TONIGHT.

THERE IS AN INCREASED RISK FOR RIP CURRENTS FOR THE SHORES OF
NORTHWEST INDIANA THROUGH THE EARLY EVENING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS SUNDAY NIGHT THROUGH
MONDAY...AND AGAIN EARLY WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.TODAY...SUNNY...COOLER. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 10 MPH.
.TONIGHT...CLEAR. LOWS IN THE UPPER 50S. LIGHT AND VARIABLE
WINDS.
.FRIDAY...SUNNY. HIGHS IN THE LOWER 80S. LIGHT AND VARIABLE WINDS
IN THE MORNING BECOMING SOUTHWEST AROUND 10 MPH IN THE AFTERNOON.
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 60S. LIGHT AND
VARIABLE WINDS IN THE EVENING BECOMING NORTHWEST AROUND 10 MPH
AFTER MIDNIGHT.
.SATURDAY...MOSTLY SUNNY. HIGHS AROUND 80. NORTH WINDS AROUND
10 MPH.
.SATURDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 50S.
.SUNDAY...MOSTLY SUNNY. HIGHS IN THE MID 70S.
.SUNDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 50S.
.MONDAY...PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE MID 70S.
.MONDAY NIGHT AND TUESDAY...PARTLY CLOUDY. LOWS IN THE UPPER 50S.
HIGHS IN THE UPPER 70S.
.TUESDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S.
.WEDNESDAY...MOSTLY SUNNY. HIGHS AROUND 80.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...OVERNIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THERE IS A CHANCE OF THUNDERSTORMS SUNDAY NIGHT THROUGH MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.REST OF TONIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 10 MPH.
.THURSDAY...SUNNY...COOLER. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 10 MPH.
.THURSDAY NIGHT...CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS IN THE
UPPER 50S. LIGHT AND VARIABLE WINDS.
.FRIDAY...MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT AND
VARIABLE WINDS.
.FRIDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT AND
VARIABLE WINDS IN THE EVENING BECOMING WEST AROUND 10 MPH AFTER
MIDNIGHT.
.SATURDAY...MOSTLY SUNNY. HIGHS AROUND 80.
.SATURDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 50S.
.SUNDAY...MOSTLY SUNNY. HIGHS IN THE MID 70S.
.SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 50S.
.MONDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE MID 70S.
.MONDAY NIGHT THROUGH WEDNESDAY...PARTLY CLOUDY. LOWS IN THE
UPPER 50S. HIGHS IN THE UPPER 70S.

Zone Forecast

.TONIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST WINDS
10 TO 15 MPH.
.THURSDAY...SUNNY...COOLER. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 10 MPH.
.THURSDAY NIGHT...CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS IN THE
UPPER 50S. LIGHT AND VARIABLE WINDS.
.FRIDAY...MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT AND
VARIABLE WINDS.
.FRIDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT AND
VARIABLE WINDS IN THE EVENING BECOMING WEST AROUND 10 MPH AFTER
MIDNIGHT.
.SATURDAY...MOSTLY SUNNY. HIGHS AROUND 80.
.SATURDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 50S.
.SUNDAY...MOSTLY SUNNY. HIGHS IN THE MID 70S.
.SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 50S.
.MONDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE MID 70S.
.MONDAY NIGHT THROUGH WEDNESDAY...PARTLY CLOUDY. LOWS IN THE
UPPER 50S. HIGHS IN THE UPPER 70S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...SOME COULD PRODUCE:
DAMAGING WINDS IN EXCESS OF 60 MPH.
HAIL TO THE SIZE OF HALF DOLLARS.
FREQUENT CLOUD TO GROUND LIGHTNING.
MODERATE TO HEAVY RAIN.

AREAS AFFECTED AND TIMING:

A COLD FRONT CURRENTLY MOVING ACROSS NORTHWESTERN AND NORTH
CENTRAL ILLINOIS WILL MOVE SOUTHEAST ACROSS NORTHEASTERN
ILLINOIS AND NORTHWESTERN INDIANA LATE THIS AFTERNOON INTO
EARLY THIS EVENING. THUNDERSTORMS ARE EXPECTED TO RAPIDLY
DEVELOP ALONG THE FRONT BETWEEN 4 AND 6 PM THIS AFTERNOON.
THESE THUNDERSTORMS ARE EXPECTED TO AFFECT AREAS MAINLY ALONG
AND SOUTHEAST OF A LINE FROM NEAR CHICAGO SOUTHWESTWARD TO
NEAR OTTAWA ILLINOIS.

DISCUSSION:

STRONG INSTABILITY IS IN PLACE AHEAD OF THE COLD FRONT.
HOWEVER...A CAPPING INVERSION IS KEEPING THUNDERSTORMS FROM
FORMING AT THE PRESENT. HOWEVER...A POTENT UPPER LEVEL
DISTURBANCE NOW APPROACHING THE AREA SHOULD INTERACT WITH THE
LOW LEVEL CONVERGENCE ALONG THE SURFACE FRONTAL ZONE TO WEAKEN
AND BREAK THROUGH THE CAP. THIS IS EXPECTED TO RESULT IN
EXPLOSIVE THUNDERSTORM DEVELOPMENT. THE ATMOSPHERE IN WHICH
THESE STORMS DEVELOP WILL SUPPORT STRONG TO SEVERE
THUNDERSTORMS WITH STRONG WINDS AND LARGE HAIL. THE
THUNDERSTORMS SHOULD QUICKLY COME TO AN END EARLY THIS EVENING
AS THE FRONT CLEARS THE AREA.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THERE IS A CHANCE OF THUNDERSTORMS SUNDAY NIGHT THROUGH MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED LATE THIS AFTERNOON THROUGH EARLY THIS EVENING.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...SOME COULD PRODUCE:
DAMAGING WINDS IN EXCESS OF 60 MPH.
HAIL TO THE SIZE OF QUARTERS.
FREQUENT CLOUD TO GROUND LIGHTNING.
MODERATE TO HEAVY RAIN.

AREAS AFFECTED AND TIMING:

A COLD FRONT WILL MOVE SOUTHEAST ACROSS THE REGION TODAY.
THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG THE FRONT LATE
THIS AFTERNOON INTO THE EVENING. THESE THUNDERSTORMS ARE
EXPECTED TO DEVELOP ALONG AND SOUTHEAST OF A LINE FROM GARY
INDIANA TO PONTIAC ILLINOIS.

DISCUSSION:

STRONG INSTABILITY WILL DEVELOP AHEAD OF A COLD FRONT
TODAY...HOWEVER A STRONG CAPPING INVERSION WILL KEEP
THUNDERSTORMS FROM FORMING INITIALLY. HOWEVER...AS A POTENT
UPPER LEVEL DISTURBANCE APPROACHES THE AREA LATER THIS
AFTERNOON...ITS DYNAMICS WILL INTERACT WITH THE LOW LEVEL
CONVERGENCE ALONG THE SURFACE FRONTAL ZONE TO WEAKEN AND BREAK
THROUGH THE CAP. THIS IS EXPECTED TO RESULT IN EXPLOSIVE
THUNDERSTORM DEVELOPMENT LATER THIS AFTERNOON. THE ATMOSPHERE
IN WHICH THESE STORMS DEVELOP WILL SUPPORT STRONG TO SEVERE
THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THERE IS A CHANCE OF THUNDERSTORMS SUNDAY NIGHT THROUGH MONDAY
NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED THIS AFTERNOON.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Test Message

THIS IS THE WEEKLY TEST OF THE WXWARN1 ALERT SYSTEM THIS IS ONLY A TEST

Zone Forecast

.REST OF TODAY...PARTLY CLOUDY. HIGHS IN THE UPPER 80S. NORTHWEST
WINDS 10 TO 20 MPH. GUSTS UP TO 35 MPH IN THE AFTERNOON.
.TONIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST WINDS
10 TO 15 MPH.
.THURSDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
10 TO 15 MPH.
.THURSDAY NIGHT...CLEAR. LOWS AROUND 60. LIGHT AND VARIABLE
WINDS.
.FRIDAY...SUNNY. HIGHS IN THE LOWER 80S. LIGHT AND VARIABLE
WINDS.
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 60S.
.SATURDAY...MOSTLY SUNNY. HIGHS AROUND 80.
.SATURDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 50S.
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE
OF LIGHT SHOWERS AND THUNDERSTORMS. HIGHS IN THE MID 70S. LOWS IN
THE UPPER 50S.
.MONDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF LIGHT SHOWERS
AND THUNDERSTORMS. HIGHS IN THE MID 70S.
.MONDAY NIGHT AND TUESDAY...MOSTLY CLEAR. LOWS IN THE UPPER 50S.
HIGHS IN THE MID 70S.

Zone Forecast

.TODAY...PARTLY CLOUDY. PATCHY FOG EARLY IN THE MORNING. VERY
WARM AND HUMID. HIGHS IN THE UPPER 80S. WEST WINDS 10 TO 20 MPH
WITH GUSTS UP TO 30 MPH AT TIMES.
.TONIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST WINDS
10 TO 15 MPH.
.THURSDAY...MOSTLY SUNNY. LESS HUMID. HIGHS IN THE UPPER 70S.
NORTH WINDS 10 TO 15 MPH.
.THURSDAY NIGHT...CLEAR. LOWS AROUND 60. LIGHT AND VARIABLE
WINDS.
.FRIDAY...SUNNY. HIGHS IN THE LOWER 80S. LIGHT AND VARIABLE
WINDS.
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 60S.
.SATURDAY...MOSTLY SUNNY. HIGHS AROUND 80.
.SATURDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 50S.
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE
OF LIGHT SHOWERS AND THUNDERSTORMS. HIGHS IN THE MID 70S. LOWS IN
THE UPPER 50S.
.MONDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF LIGHT SHOWERS
AND THUNDERSTORMS. HIGHS IN THE MID 70S.
.MONDAY NIGHT AND TUESDAY...MOSTLY CLEAR. LOWS IN THE UPPER 50S.
HIGHS IN THE MID 70S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TODAY AND TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...SOME COULD PRODUCE:
DAMAGING WINDS IN EXCESS OF 60 MPH.
HAIL TO THE SIZE OF QUARTERS.
FREQUENT CLOUD TO GROUND LIGHTNING.
HEAVY RAIN.

AREAS AFFECTED AND TIMING:

A COLD FRONT WILL MOVE SOUTHEAST ACROSS THE REGION TODAY.
THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG THE FRONT LATE
THIS AFTERNOON INTO THE EVENING. THESE THUNDERSTORMS ARE
EXPECTED TO DEVELOP ALONG AND EAST OF A LINE FROM GARY INDIANA
TO PONTIAC ILLINOIS.

DISCUSSION:

STRONG INSTABILITY WILL DEVELOP AHEAD OF A COLD FRONT
TODAY...HOWEVER A STRONG CAPPING INVERSION WILL KEEP
THUNDERSTORMS FROM FORMING UNTIL LATE THIS AFTERNOON. ONCE THE
CAP BREAKS...EXPLOSIVE THUNDERSTORM DEVELOPMENT IS POSSIBLE
WITH STORMS QUICKLY BECOMING STRONG TO SEVERE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THERE IS A CHANCE OF THUNDERSTORMS SUNDAY NIGHT THROUGH MONDAY
NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED LATE THIS AFTERNOON AND EVENING.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.TODAY...PARTLY CLOUDY. VERY WARM AND HUMID. HIGHS IN THE UPPER
80S. WEST WINDS 10 TO 20 MPH WITH GUSTS UP TO 30 MPH AT TIMES.
.TONIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST WINDS
10 TO 15 MPH.
.THURSDAY...MOSTLY SUNNY. LESS HUMID. HIGHS IN THE UPPER 70S.
NORTH WINDS 10 TO 15 MPH.
.THURSDAY NIGHT...CLEAR. LOWS AROUND 60. LIGHT AND VARIABLE
WINDS.
.FRIDAY...SUNNY. HIGHS IN THE LOWER 80S. LIGHT AND VARIABLE
WINDS.
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 60S.
.SATURDAY...MOSTLY SUNNY. HIGHS AROUND 80.
.SATURDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 50S.
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE
OF LIGHT SHOWERS AND THUNDERSTORMS. HIGHS IN THE MID 70S. LOWS IN
THE UPPER 50S.
.MONDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF LIGHT SHOWERS
AND THUNDERSTORMS. HIGHS IN THE MID 70S.
.MONDAY NIGHT AND TUESDAY...MOSTLY CLEAR. LOWS IN THE UPPER 50S.
HIGHS IN THE MID 70S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...OVERNIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THERE IS A CHANCE OF THUNDERSTORMS AGAIN ON WEDNESDAY...MAINLY
DURING THE MID AFTERNOON TO EARLY EVENING HOURS AHEAD OF AN
ADVANCING COLD FRONT. THUNDERSTORMS WILL BE MOST LIKELY OVER
SOUTHEASTERN PARTS OF THE OUTLOOK AREA...MAINLY SOUTH AND EAST OF
THE INTERSTATE 55 CORRIDOR ACROSS EASTERN ILLINOIS AND NORTHWEST
INDIANA. SOME OF THE STORMS MAY BE SEVERE WITH THE GREATEST
THREAT BEING DAMAGING WINDS AND LARGE HAIL. LOCALLY HEAVY
RAINFALL WILL BE POSSIBLE AS WELL.

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS SATURDAY NIGHT INTO
SUNDAY ACROSS PORTIONS OF NORTHERN ILLINOIS. THERE WILL BE A
CHANCE OF THUNDERSTORMS ACROSS THE ENTIRE AREA MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...THE STRONGEST COULD PRODUCE:

DAMAGING WINDS IN EXCESS OF 60 MPH.
HAIL TO ONE INCH.
FREQUENT CLOUD TO GROUND LIGHTNING.
AND LOCALLY HEAVY DOWNPOURS.

AREAS AFFECTED AND TIMING:

SCATTERED THUNDERSTORMS DEVELOPING OVER PORTIONS OF SOUTHEAST
WISCONSIN AND SOUTHERN LAKE MICHIGAN WILL LIKELY EXPAND IN
COVERAGE THIS EVENING...AND WILL LIKELY AFFECT AT LEAST PORTIONS
OF NORTHERN ILLINOIS AND NORTHWEST INDIANA AFTER 9 PM CDT.
THUNDERSTORMS WILL LIKELY CONTINUE TO AFFECT ESPECIALLY NORTHEAST
ILLINOIS AND NORTHWEST INDIANA THROUGH 2 OR 3 AM CDT...THEN
DIMINISH IN COVERAGE.

DISCUSSION:

A MID LEVEL DISTURBANCE MOVED EAST OF THE OUTLOOK AREA THIS
AFTERNOON. SINKING AIR IN THE WAKE OF THIS DISTURBANCE HAS ALLOWED
CLOUDS TO CLEAR OUT ACROSS THE AREA EARLY THIS EVENING. HOWEVER...
ANOTHER STRONG DISTURBANCE WILL DROP SOUTHEAST OUT OF NORTHERN
WISCONSIN LATER THIS EVENING AND OVERNIGHT...AND WILL LIKELY
RESULT IN ADDITIONAL THUNDERSTORM DEVELOPMENT TONIGHT. WHILE VERY
WARM AND HUMID AIR EXISTS TO THE WEST OF THE OUTLOOK AREA THIS
EVENING...TEMPERATURES ALOFT ARE QUITE WARM...PRODUCING A CAPPING
INVERSION THAT WILL HINDER THUNDERSTORM DEVELOPMENT FARTHER TO THE
WEST. THE GREATEST POTENTIAL FOR THUNDERSTORMS WILL LIKELY BE FROM
CENTRAL WISCONSIN ACROSS SOUTHERN LAKE MICHIGAN...THOUGH SCATTERED
STORMS WILL LIKELY DEVELOP AS FAR WEST AS PORTIONS OF NORTHERN
ILLINOIS AND NORTHWEST INDIANA. SOME OF THE STRONGER STORMS MAY BE
CAPABLE OF PRODUCING ONE INCH HAIL...AND ISOLATED WIND GUSTS TO 60
MPH.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THERE IS A CHANCE OF THUNDERSTORMS AGAIN ON WEDNESDAY...MAINLY
DURING THE MID AFTERNOON TO EARLY EVENING HOURS AHEAD OF AN
ADVANCING COLD FRONT. THUNDERSTORMS WILL BE MOST LIKELY OVER
SOUTHEASTERN PARTS OF THE OUTLOOK AREA...MAINLY SOUTH AND EAST OF
THE INTERSTATE 55 CORRIDOR ACROSS EASTERN ILLINOIS AND NORTHWEST
INDIANA. SOME OF THE STORMS MAY BE SEVERE WITH THE GREATEST
THREAT BEING DAMAGING WINDS AND LARGE HAIL. LOCALLY HEAVY
RAINFALL WILL BE POSSIBLE AS WELL.

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS SATURDAY NIGHT INTO
SUNDAY ACROSS PORTIONS OF NORTHERN ILLINOIS. THERE WILL BE A
CHANCE OF THUNDERSTORMS ACROSS THE ENTIRE AREA MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...SOME COULD PRODUCE:
DAMAGING WINDS IN EXCESS OF 60 MPH.
HAIL TO THE SIZE OF QUARTERS.
ISOLATED TORNADOES.
FREQUENT CLOUD TO GROUND LIGHTNING.
HEAVY RAIN.

AREAS AFFECTED AND TIMING:

ISOLATED THUNDERSTORMS CONTINUE TO DEVELOP ACROSS FAR NORTHEAST
ILLINOIS OR ALONG AND EAST OF AN ELGIN TO MILFORD LINE THIS
AFTERNOON.

ADDITIONAL STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP
ACROSS NORTHERN ILLINOIS LATE THIS EVENING THROUGH TONIGHT AND
SLIDE SOUTHEAST ACROSS THE OUTLOOK AREA.

DISCUSSION:

ADDITIONAL THUNDERSTORMS ARE EXPECTED TO DEVELOP LATE THIS
EVENING THROUGH TONIGHT AS A WEAK UPPER LEVEL WAVE APPROACHES
NORTHERN ILLINOIS AND NORTHWEST INDIANA FROM THE UPPER MIDWEST.
CLOUDS WILL CONTINUE TO CLEAR ACROSS NORTHERN ILLINOIS AND
NORTHWEST INDIANA...WHICH WILL ALLOW THE ATMOSPHERE TO DESTABILIZE
LATE THIS AFTERNOON...STRONG WINDS ALOFT WILL ALLOW STORMS TO
BECOME SEVERE. WITH SOME TURNING IN THE WIND FIELD...AND OLD OUTFLOW
BOUNDARIES FROM EARLIER THUNDERSTORMS...SOME UPDRAFTS COULD BEGIN
TO ROTATE. THUS THE POSSIBILITY FOR ISOLATED TORNADOES...MAINLY
ALONG AND NORTH OF A PONTIAC TO RENSSELAER LINE.

HEAVY RAINFALL WILL ALSO BE POSSIBLE TONIGHT AS THUNDERSTORMS MAY
CONTINUE TO DEVELOP OVER NORTHERN ILLINOIS...MAINLY ALONG AND
NORTH OF A PERU TO STREATOR TO KANKAKEE AND RENSSELAER LINE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THUNDERSTORMS ARE LIKELY AGAIN ON WEDNESDAY. THERE IS A SLIGHT
RISK THAT SOME STORMS MAY BE SEVERE...PARTICULARLY OVER EAST
CENTRAL ILLINOIS AND NORTHWEST INDIANA. THE GREATEST THREAT WITH
THESE STORMS WILL BE DAMAGING WINDS AND LARGE HAIL. LOCALLY HEAVY
RAINFALL WILL BE POSSIBLE AS WELL.

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS SATURDAY NIGHT INTO
SUNDAY ACROSS PORTIONS OF NORTHERN ILLINOIS. THERE WILL BE A
CHANCE OF THUNDERSTORMS ACROSS THE ENTIRE AREA MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NECESSARY THIS EVENING THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.TONIGHT...MOSTLY CLOUDY. SHOWERS AND THUNDERSTORMS LIKELY IN THE
EVENING...THEN A CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
EVENING. MUGGY. LOWS AROUND 70. SOUTHWEST WINDS 10 TO 15 MPH.
CHANCE OF PRECIPITATION 70 PERCENT.
.WEDNESDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. VERY WARM AND HUMID. HIGHS IN THE UPPER 80S.
WEST WINDS 10 TO 20 MPH.
.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS 10 TO 15 MPH.
.THURSDAY...MOSTLY SUNNY. LESS HUMID. HIGHS AROUND 80. NORTH
WINDS AROUND 10 MPH.
.THURSDAY NIGHT...CLEAR. LOWS AROUND 60. LIGHT AND VARIABLE
WINDS.
.FRIDAY...SUNNY. HIGHS AROUND 80.
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 60S.
.SATURDAY...MOSTLY SUNNY. HIGHS IN THE LOWER 80S. THEN
TEMPERATURES FALLING INTO THE MID 70S BY EVENING.
.SATURDAY NIGHT...MOSTLY CLEAR. LOWS AROUND 60.
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE
OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 70S. LOWS IN THE
LOWER 60S.
.MONDAY...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE MID 70S.
.MONDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE MID 50S.
.TUESDAY...MOSTLY SUNNY. HIGHS IN THE MID 70S.

Zone Forecast

.THIS AFTERNOON...MOSTLY CLOUDY. CHANCE OF SHOWERS AND ISOLATED
THUNDERSTORMS EARLY IN THE AFTERNOON...THEN A CHANCE OF SHOWERS
AND THUNDERSTORMS LATE IN THE AFTERNOON. MORE HUMID. HIGHS IN THE
UPPER 70S. SOUTH WINDS 10 TO 15 MPH. CHANCE OF PRECIPITATION
50 PERCENT.
.TONIGHT...MOSTLY CLOUDY. SHOWERS AND THUNDERSTORMS LIKELY IN THE
EVENING...THEN A CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
EVENING. MUGGY. LOWS IN THE UPPER 60S. SOUTHWEST WINDS 10 TO
15 MPH. CHANCE OF PRECIPITATION 60 PERCENT.
.WEDNESDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. VERY WARM AND HUMID. HIGHS IN THE UPPER 80S.
PEAK AFTERNOON HEAT INDEX READINGS 95 TO 100. WEST WINDS 10 TO
15 MPH.
.WEDNESDAY NIGHT...CLEAR. LOWS IN THE LOWER 60S. NORTHWEST WINDS
AROUND 10 MPH.
.THURSDAY...SUNNY. LESS HUMID. HIGHS IN THE LOWER 80S. NORTH
WINDS AROUND 10 MPH.
.THURSDAY NIGHT...CLEAR. LOWS IN THE LOWER 60S.
.FRIDAY...MOSTLY SUNNY. HIGHS AROUND 80.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF LIGHT
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S.
.SATURDAY THROUGH SUNDAY...PARTLY CLOUDY. HIGHS AROUND 80. LOWS
IN THE LOWER 60S.
.SUNDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF LIGHT
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S.
.MONDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF LIGHT SHOWERS
AND THUNDERSTORMS. HIGHS IN THE MID 70S.

Zone Forecast

.REST OF TODAY...SHOWERS AND THUNDERSTORMS LATE IN THE MORNING...
THEN A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MORE
HUMID. HIGHS IN THE LOWER 80S. SOUTH WINDS 10 TO 15 MPH. CHANCE
OF PRECIPITATION 100 PERCENT.
.TONIGHT...MOSTLY CLOUDY. SHOWERS AND THUNDERSTORMS LIKELY IN THE
EVENING...THEN A CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
EVENING. MUGGY. LOWS IN THE UPPER 60S. SOUTHWEST WINDS 10 TO
15 MPH. CHANCE OF PRECIPITATION 60 PERCENT.
.WEDNESDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. VERY WARM AND HUMID. HIGHS IN THE UPPER 80S.
PEAK AFTERNOON HEAT INDEX READINGS 95 TO 100. WEST WINDS 10 TO
15 MPH.
.WEDNESDAY NIGHT...CLEAR. LOWS IN THE LOWER 60S. NORTHWEST WINDS
AROUND 10 MPH.
.THURSDAY...SUNNY. LESS HUMID. HIGHS IN THE LOWER 80S. NORTH
WINDS AROUND 10 MPH.
.THURSDAY NIGHT...CLEAR. LOWS IN THE LOWER 60S.
.FRIDAY...MOSTLY SUNNY. HIGHS AROUND 80.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF LIGHT
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S.
.SATURDAY THROUGH SUNDAY...PARTLY CLOUDY. HIGHS AROUND 80. LOWS
IN THE LOWER 60S.
.SUNDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF LIGHT
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S.
.MONDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF LIGHT SHOWERS
AND THUNDERSTORMS. HIGHS IN THE MID 70S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TODAY AND TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...SOME COULD PRODUCE:
DAMAGING WINDS IN EXCESS OF 60 MPH.
HAIL TO THE SIZE OF QUARTERS.
ISOLATED TORNADOES.
FREQUENT CLOUD TO GROUND LIGHTNING.
HEAVY RAIN.

AREAS AFFECTED AND TIMING:

A THUNDERSTORM COMPLEX OVER EASTERN IOWA THIS MORNING WILL DROP
ACROSS NORTHERN ILLINOIS EARLY THIS MORNING. THESE STORMS ARE
EXPECTED TO BE WEAKENING...AND ANY LINGERING SEVERE THREAT SHOULD
DIMINISH SHORTLY AFTER SUNRISE.

ADDITIONAL STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP
ACROSS NORTHERN ILLINOIS LATE THIS AFTERNOON AND EVENING AND DROP
SOUTHEAST ACROSS THE OUTLOOK AREA.

DISCUSSION:

AN ONGOING THUNDERSTORM COMPLEX OVER EASTERN IOWA EARLY THIS
MORNING IS EXPECTED TO PUSH EAST-SOUTHEAST INTO NORTHERN ILLINOIS.
THERE MAY BE A LINGERING SEVERE WEATHER THREAT WITH THESE
THUNDERSTORMS AS THEY ENTER THE FAR NORTHWEST PORTIONS OF THE
OUTLOOK AREA...AREAS WEST OF A LINE FROM BELVIDERE TO
DIXON...HOWEVER THEY ARE EXPECTED TO BE IN A WEAKENING STATE...AND
THE THREAT SHOULD DIMINISH SHORTLY AFTER DAYBREAK.

ADDITIONAL THUNDERSTORMS ARE EXPECTED TO DEVELOP LATE THIS
AFTERNOON AND EVENING ALONG TRAILING OUTFLOW BOUNDARIES FROM THIS
MORNINGS THUNDERSTORMS. SHOULD CLOUDS CLEAR OUT ENOUGH FOR THE
ATMOSPHERE DESTABILIZE...STRONG WINDS ALOFT WILL ALLOW STORMS TO
BECOME SEVERE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THUNDERSTORMS ARE LIKELY AGAIN ON WEDNESDAY. THERE IS A SLIGHT
RISK THAT SOME STORMS MAY BE SEVERE...PARTICULARLY OVER EAST
CENTRAL ILLINOIS AND NORTHWEST INDIANA. THE GREATEST THREAT WITH
THESE STORMS WILL BE DAMAGING WINDS AND LARGE HAIL. LOCALLY HEAVY
RAINFALL WILL BE POSSIBLE AS WELL.

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS SATURDAY NIGHT INTO
SUNDAY ACROSS PORTIONS OF NORTHERN ILLINOIS. THERE WILL BE A
CHANCE OF THUNDERSTORMS ACROSS THE ENTIRE AREA MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NECESSARY.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.REST OF TONIGHT...BECOMING PARTLY CLOUDY. LOWS IN THE LOWER 60S.
LIGHT AND VARIABLE WINDS.
.TUESDAY...MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. MORE HUMID. HIGHS IN THE LOWER 80S. SOUTH WINDS
10 TO 15 MPH.
.TUESDAY NIGHT...PARTLY CLOUDY. SHOWERS AND THUNDERSTORMS LIKELY
IN THE EVENING...THEN A CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. MUGGY. LOWS IN THE UPPER 60S. SOUTHWEST WINDS 10 TO
15 MPH. CHANCE OF PRECIPITATION 60 PERCENT.
.WEDNESDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. VERY WARM AND HUMID. HIGHS IN THE UPPER 80S.
SOUTHWEST WINDS 10 TO 15 MPH.
.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 10 MPH.
.THURSDAY...SUNNY. HIGHS IN THE LOWER 80S.
.THURSDAY NIGHT...CLEAR. LOWS IN THE LOWER 60S.
.FRIDAY...MOSTLY SUNNY. HIGHS IN THE LOWER 80S.
.FRIDAY NIGHT...MOSTLY CLEAR WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE LOWER 60S.
.SATURDAY...MOSTLY SUNNY. HIGHS IN THE LOWER 80S. THEN
TEMPERATURES FALLING INTO THE MID 70S BY EVENING.
.SATURDAY NIGHT THROUGH SUNDAY NIGHT...PARTLY CLOUDY WITH A
20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER
60S. HIGHS IN THE UPPER 70S.
.MONDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 70S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THUNDERSTORMS ARE LIKELY TUESDAY THROUGH WEDNESDAY NIGHT FOR ALL
OF NORTHERN ILLINOIS AND NORTHWEST INDIANA. THERE IS A SLIGHT
RISK THAT SOME STORMS MAY BE STRONG TO SEVERE...PARTICULARLY OVER
NORTHERN ILLINOIS. THE GREATEST THREAT WITH THESE STORMS WILL BE
DAMAGING WINDS AND LARGE HAIL. ISOLATED TORNADOES AND LOCALLY
HEAVY RAINFALL WILL BE POSSIBLE AS WELL.

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS SATURDAY NIGHT INTO
SUNDAY ACROSS PORTIONS OF NORTHERN ILLINOIS. THERE WILL BE A
CHANCE OF THUNDERSTORMS ACROSS THE ENTIRE AREA MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.THIS AFTERNOON...MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT AND
VARIABLE WINDS.
.TONIGHT...CLEAR IN THE EVENING THEN BECOMING PARTLY CLOUDY. LOWS
AROUND 60. LIGHT AND VARIABLE WINDS.
.TUESDAY...PARTLY SUNNY WITH A 50 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. MORE HUMID. HIGHS IN THE LOWER 80S. SOUTH WINDS
10 TO 15 MPH.
.TUESDAY NIGHT...MOSTLY CLOUDY. SHOWERS AND THUNDERSTORMS LIKELY
IN THE EVENING...THEN A CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. MUGGY. LOWS IN THE UPPER 60S. SOUTHWEST WINDS 10 TO
15 MPH. CHANCE OF RAIN 60 PERCENT.
.WEDNESDAY...PARTLY SUNNY. A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. VERY WARM AND HUMID. HIGHS IN THE
UPPER 80S. SOUTHWEST WINDS 10 TO 15 MPH.
.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 60S.
.THURSDAY...SUNNY. HIGHS IN THE LOWER 80S.
.THURSDAY NIGHT...CLEAR. LOWS IN THE LOWER 60S.
.FRIDAY AND FRIDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE LOWER 80S.
LOWS IN THE MID 60S.
.SATURDAY AND SATURDAY NIGHT...MOSTLY CLEAR. A 20 PERCENT CHANCE
OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE LOWER 80S. LOWS IN THE
MID 60S.
.SUNDAY...MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 70S.

Zone Forecast

.THIS AFTERNOON...SUNNY. HIGHS IN THE MID 80S. LIGHT AND VARIABLE
WINDS.
.TONIGHT...CLEAR IN THE EVENING THEN BECOMING PARTLY CLOUDY. LOWS
AROUND 60. LIGHT AND VARIABLE WINDS IN THE EVENING BECOMING SOUTH
AROUND 10 MPH AFTER MIDNIGHT.
.TUESDAY...PARTLY SUNNY WITH A 50 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. MORE HUMID. HIGHS IN THE LOWER 80S. SOUTH WINDS
10 TO 15 MPH.
.TUESDAY NIGHT...MOSTLY CLOUDY. SHOWERS AND THUNDERSTORMS LIKELY
IN THE EVENING...THEN A CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. MUGGY. LOWS IN THE UPPER 60S. SOUTHWEST WINDS 10 TO
15 MPH. CHANCE OF PRECIPITATION 60 PERCENT.
.WEDNESDAY...PARTLY SUNNY. A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. VERY WARM AND HUMID. HIGHS IN THE
UPPER 80S. WEST WINDS 10 TO 15 MPH.
.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 60S.
.THURSDAY...SUNNY. HIGHS IN THE LOWER 80S.
.THURSDAY NIGHT...CLEAR. LOWS IN THE LOWER 60S.
.FRIDAY AND FRIDAY NIGHT...MOSTLY CLEAR. HIGHS IN THE LOWER 80S.
LOWS IN THE MID 60S.
.SATURDAY AND SATURDAY NIGHT...MOSTLY CLEAR. A 20 PERCENT CHANCE
OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE LOWER 80S. LOWS IN THE
MID 60S.
.SUNDAY...MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 70S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THUNDERSTORMS ARE LIKELY TUESDAY THROUGH WEDNESDAY NIGHT FOR ALL
OF NORTHERN ILLINOIS AND NORTHWEST INDIANA. THERE IS A SLIGHT
RISK THAT SOME STORMS MAY BE STRONG TO SEVERE...PARTICULARLY OVER
NORTHERN ILLINOIS. THE GREATEST THREAT WITH THESE STORMS WILL BE
DAMAGING WINDS AND LARGE HAIL. ISOLATED TORNADOES AND LOCALLY
HEAVY RAINFALL WILL BE POSSIBLE AS WELL.

THUNDERSTORMS ARE POSSIBLE AGAIN SATURDAY AND SUNDAY AS ANOTHER
COLD FRONT MOVES THROUGH THE MIDWEST.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THUNDERSTORMS ARE LIKELY TUESDAY THROUGH WEDNESDAY NIGHT FOR ALL
OF NORTHERN ILLINOIS AND NORTHWEST INDIANA. THERE IS A SLIGHT RISK
THAT SOME STORMS MAY BE STRONG TO SEVERE...PARTICULARLY OVER
NORTHERN ILLINOIS. THE GREATEST THREAT WITH THESE STORMS WILL BE
DAMAGING WINDS AND LARGE HAIL. ISOLATED TORNADOES AND LOCALLY
HEAVY RAINFALL WILL BE POSSIBLE AS WELL.

THUNDERSTORMS ARE POSSIBLE AGAIN SATURDAY AND SUNDAY AS ANOTHER
COLD FRONT MOVES THROUGH THE MIDWEST.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THUNDERSTORMS ARE LIKELY TUESDAY THROUGH WEDNESDAY NIGHT FOR ALL
OF NORTHERN ILLINOIS AND NORTHWEST INDIANA. THERE IS A SLIGHT RISK
THAT SOME STORMS MAY BE STRONG TO SEVERE...PARTICULARLY OVER
NORTHERN ILLINOIS. THE GREATEST THREAT WITH THESE STORMS WILL BE
DAMAGING WINDS...LARGE HAIL AND LOCALLY HEAVY RAIN.

THUNDERSTORMS ARE POSSIBLE AGAIN SATURDAY AND SUNDAY AS ANOTHER
COLD FRONT MOVES THROUGH THE MIDWEST.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST
ILLINOIS...AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THERE IS A CHANCE OF THUNDERSTORMS TUESDAY AND WEDNESDAY WITH
EARLY INDICATIONS SUGGESTING THAT THERE WILL BE THE POTENTIAL FOR
SOME OF THE STORMS TO BE STRONG TO SEVERE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.THIS AFTERNOON...MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST
WINDS AROUND 10 MPH.
.TONIGHT...CLEAR. LOWS IN THE UPPER 50S. LIGHT AND VARIABLE
WINDS.
.MONDAY...SUNNY. HIGHS AROUND 80. LIGHT AND VARIABLE WINDS.
.MONDAY NIGHT...MOSTLY CLEAR. LOWS AROUND 60. LIGHT AND VARIABLE
WINDS.
.TUESDAY...PARTLY SUNNY WITH A 40 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 10 TO
15 MPH.
.TUESDAY NIGHT...MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S.
.WEDNESDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. HIGHS IN THE UPPER 80S.
.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 60S.
.THURSDAY THROUGH SATURDAY...MOSTLY CLEAR. HIGHS IN THE LOWER
80S. LOWS IN THE LOWER 60S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST
ILLINOIS...AND NORTHWEST INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THERE IS A GOOD CHANCE OF THUNDERSTORMS TUESDAY INTO TUESDAY
NIGHT WITH EARLY INDICATIONS SUGGESTING THAT THERE WILL BE A
POTENTIAL FOR SOME OF THE STORMS TO BE SEVERE.

THERE IS A SLIGHT CHANCE FOR MORE THUNDERSTORMS LATE WEDNESDAY
AFTERNOON INTO WEDNESDAY EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.REST OF TODAY...PARTLY CLOUDY. HIGHS IN THE UPPER 70S. LIGHT AND
VARIABLE WINDS IN THE MORNING BECOMING NORTHWEST AROUND 10 MPH IN
THE AFTERNOON.
.TONIGHT...CLEAR. LOWS IN THE UPPER 50S. LIGHT AND VARIABLE
WINDS.
.MONDAY...SUNNY. HIGHS AROUND 80. LIGHT AND VARIABLE WINDS.
.MONDAY NIGHT...MOSTLY CLEAR. LOWS AROUND 60. LIGHT AND VARIABLE
WINDS.
.TUESDAY...PARTLY SUNNY WITH A 40 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 10 TO
15 MPH.
.TUESDAY NIGHT...MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S.
.WEDNESDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. HIGHS IN THE UPPER 80S.
.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 60S.
.THURSDAY THROUGH SATURDAY...MOSTLY CLEAR. HIGHS IN THE LOWER
80S. LOWS IN THE LOWER 60S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THERE IS A GOOD CHANCE OF THUNDERSTORMS TUESDAY INTO TUESDAY NIGHT
WITH EARLY INDICATIONS SUGGESTING THAT THERE WILL BE A POTENTIAL
FOR SOME OF THE STORMS TO BE SEVERE.

THERE IS A SLIGHT CHANCE FOR MORE THUNDERSTORMS LATE WEDNESDAY
AFTERNOON INTO WEDNESDAY EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.TODAY...MOSTLY CLOUDY UNTIL AFTERNOON THEN CLEARING. SCATTERED
SHOWERS DURING THE PREDAWN HOURS. HIGHS IN THE UPPER 70S. LIGHT
AND VARIABLE WINDS EARLY IN THE MORNING BECOMING NORTHWEST AROUND
10 MPH IN THE AFTERNOON. CHANCE OF PRECIPITATION 30 PERCENT.
.TONIGHT...CLEAR. LOWS IN THE UPPER 50S. LIGHT AND VARIABLE
WINDS.
.MONDAY...SUNNY. HIGHS AROUND 80. LIGHT AND VARIABLE WINDS.
.MONDAY NIGHT...MOSTLY CLEAR. LOWS AROUND 60. LIGHT AND VARIABLE
WINDS.
.TUESDAY...PARTLY SUNNY WITH A 40 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 10 TO
15 MPH.
.TUESDAY NIGHT...MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S.
.WEDNESDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. HIGHS IN THE UPPER 80S.
.WEDNESDAY NIGHT THROUGH SATURDAY...MOSTLY CLEAR. LOWS IN THE MID
60S. HIGHS IN THE LOWER 80S.

Zone Forecast

.TONIGHT...PARTLY CLOUDY. A 30 PERCENT CHANCE OF SHOWERS EARLY IN
THE EVENING. LOWS IN THE UPPER 50S. LIGHT AND VARIABLE WINDS.
.SUNDAY...PARTLY CLOUDY. HIGHS IN THE UPPER 70S. LIGHT AND
VARIABLE WINDS UNTIL LATE AFTERNOON BECOMING NORTH AROUND 10 MPH
LATE IN THE AFTERNOON.
.SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT AND
VARIABLE WINDS.
.MONDAY...MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT AND
VARIABLE WINDS.
.MONDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT AND
VARIABLE WINDS.
.TUESDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 70S.
.TUESDAY NIGHT...PARTLY CLOUDY WITH A 40 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S.
.WEDNESDAY...MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S.
.WEDNESDAY NIGHT THROUGH FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE
LOWER 60S. HIGHS AROUND 80.
.SATURDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST
ILLINOIS...AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

THERE IS A CHANCE OF THUNDERSTORMS THIS EVENING SOUTH OF A GARY
TO GIBSON CITY LINE.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

THERE IS A CHANCE OF THUNDERSTORMS AGAIN TUESDAY AND TUESDAY
NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST
ILLINOIS...AND NORTHWEST INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A CHANCE OF THUNDERSTORMS THIS AFTERNOON SOUTH OF A
CHICAGO TO VALLEY-PERU LINE...AND THIS EVENING SOUTH OF A GARY TO
GIBSON CITY LINE.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

THERE IS A CHANCE OF THUNDERSTORMS AGAIN TUESDAY THROUGH
WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.THIS AFTERNOON...PARTLY SUNNY WITH A 50 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. HIGHS IN THE MID 70S. LIGHT AND VARIABLE WINDS
BECOMING NORTHEAST AROUND 10 MPH.
.TONIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTHEAST WINDS
AROUND 10 MPH EARLY IN THE EVENING BECOMING LIGHT AND VARIABLE IN
THE LATE EVENING AND OVERNIGHT.
.SUNDAY...PARTLY CLOUDY. NOT AS MUGGY. HIGHS IN THE UPPER 70S.
LIGHT AND VARIABLE WINDS EARLY IN THE MORNING BECOMING NORTHWEST
AROUND 10 MPH IN THE LATE MORNING AND AFTERNOON.
.SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT AND
VARIABLE WINDS.
.MONDAY...MOSTLY SUNNY. MILD. HIGHS IN THE UPPER 70S. LIGHT AND
VARIABLE WINDS IN THE MORNING BECOMING SOUTHWEST AROUND 10 MPH IN
THE AFTERNOON.
.MONDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER 60S.
.TUESDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS AROUND 80.
.TUESDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S.
.WEDNESDAY...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. HIGHS IN THE MID 80S.
.WEDNESDAY NIGHT THROUGH FRIDAY...MOSTLY CLEAR. LOWS IN THE LOWER
60S. HIGHS AROUND 80.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TODAY AND TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...SOME COULD PRODUCE:
FREQUENT CLOUD TO GROUND LIGHTNING.
HEAVY RAIN.
LOCALLY DAMAGING WINDS IN EXCESS OF 60 MPH.
AND HAIL TO THE SIZE OF QUARTERS.

AREAS AFFECTED AND TIMING:

THERE IS A CHANCE OF THUNDERSTORMS THIS MORNING...ESPECIALLY
NORTH OF INTERSTATE 80. THUNDERSTORMS WILL BECOME INCREASINGLY
LIKELY THIS AFTERNOON POSSIBLY LINGERING INTO THE EVENING SOUTH
OF INTERSTATE 80.

DISCUSSION:

A WEAK FRONT WILL MOVE INTO NORTHERN ILLINOIS AND NORTHWEST
INDIANA TODAY...TEAMING UP WITH A PAIR OF UPPER LEVEL
DISTURBANCES TO BRING A ROUND OR TWO OF SHOWERS AND
THUNDERSTORMS TO THE AREA.

THE POTENTIAL OF EXTENSIVE CLOUD COVER AND THE POSSIBILITY OF
SCATTERED SHOWERS AND STORMS THIS MORNING RAISES DOUBTS AS TO
HOW UNSTABLE THE ATMOSPHERE WILL BECOME BY AFTERNOON. SHOULD
SOME SUNSHINE BREAK THROUGH THE CLOUDS AND ALLOW FOR GREATER
INSTABILITY TO DEVELOP...THEN WINDS ALOFT WOULD BE FAVORABLE FOR
SOME OF THE STORMS THIS AFTERNOON TO BECOME CAPABLE OF PRODUCING
LOCALLY DAMAGING WINDS IN EXCESS OF 60 MPH AND HAIL UP TO ABOUT
THE SIZE OF QUARTERS. IN ADDITION...LOCALLY HEAVY RAIN IS
POSSIBLE AND COULD EVEN RESULT IN MAINLY NUISANCE TYPE FLOODING
OF POOR DRAINAGE AND LOW LYING AREAS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

THERE IS A CHANCE OF THUNDERSTORMS AGAIN TUESDAY THROUGH
WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED THIS AFTERNOON AND EARLY THIS EVENING.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.TODAY...MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE MORNING...THEN SHOWERS AND THUNDERSTORMS LIKELY IN THE
AFTERNOON. HIGHS IN THE UPPER 70S. LIGHT AND VARIABLE WINDS EARLY
IN THE MORNING BECOMING EAST AROUND 10 MPH LATE IN THE MORNING...
THEN BECOMING LIGHT AND VARIABLE EARLY IN THE AFTERNOON BECOMING
NORTHEAST AROUND 10 MPH LATE IN THE AFTERNOON. CHANCE OF
PRECIPITATION 70 PERCENT.
.TONIGHT...PARTLY CLOUDY. A 30 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 50S. NORTHEAST
WINDS AROUND 10 MPH EARLY IN THE EVENING BECOMING LIGHT AND
VARIABLE IN THE LATE EVENING AND OVERNIGHT.
.SUNDAY...PARTLY CLOUDY. NOT AS MUGGY. HIGHS IN THE UPPER 70S.
LIGHT AND VARIABLE WINDS EARLY IN THE MORNING BECOMING NORTHWEST
AROUND 10 MPH IN THE LATE MORNING AND AFTERNOON.
.SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT AND
VARIABLE WINDS.
.MONDAY...MOSTLY SUNNY AND PLEASANT. HIGHS IN THE UPPER 70S.
LIGHT AND VARIABLE WINDS IN THE MORNING BECOMING SOUTHWEST AROUND
10 MPH IN THE AFTERNOON.
.MONDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER 60S.
.TUESDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS AROUND 80.
.TUESDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S.
.WEDNESDAY...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. HIGHS IN THE MID 80S.
.WEDNESDAY NIGHT THROUGH FRIDAY...MOSTLY CLEAR. LOWS IN THE LOWER
60S. HIGHS AROUND 80.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

THERE IS A CHANCE OF THUNDERSTORMS AFTER MIDNIGHT TONIGHT
GENERALLY NORTH OF A LINE FROM WAUKEGAN TO DE KALB...TO AMBOY IN
ILLINOIS. ALTHOUGH...SEVERE WEATHER IS NOT EXPECTED DURING THIS
TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THERE IS AN INCREASED CHANCE OF THUNDERSTORMS ACROSS THE ENTIRE
OUTLOOK AREA SATURDAY THROUGH EARLY SUNDAY MORNING...WITH THE BEST
CHANCES FOR THUNDERSTORMS IN THE AFTERNOON. ALTHOUGH STILL
UNCERTAIN AT THIS TIME...THE POTENTIAL FOR DAMAGING WIND GUSTS AND
LARGE HAIL WILL BE POSSIBLE SATURDAY AFTERNOON INTO THE EVENING
WITH THE BEST LIKELIHOOD OF THIS TO OCCUR ALONG AND SOUTH OF
INTERSTATE 80.

THERE WILL BE PERIODIC CHANCES FOR THUNDERSTORMS FROM MONDAY NIGHT
INTO EARLY THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Short Term Weather

.NOW...
WITH AN UNSTABLE ENVIRONMENT DEVELOPING EARLY THIS AFTERNOON
ACROSS NORTH CENTRAL ILLINOIS AND NORTHWEST INDIANA...SOME
ISOLATED SHOWER AND THUNDERSTORM DEVELOPMENT HAS OCCURRED.
THIS ISOLATED DEVELOPMENT CAN BE EXPECTED INTO THIS
AFTERNOON...ALTHOUGH DUE TO WEAK FORCING ALOFT AND WEAK UPPER
LEVEL FLOW...THESE ISOLATED SHOWERS AND THUNDERSTORMS WILL BE
SHORT LIVED IN NATURE WITH NO WIDESPREAD DEVELOPMENT EXPECTED.

Zone Forecast

.THIS AFTERNOON...MOSTLY SUNNY. HIGHS IN THE MID 80S. LIGHT AND
VARIABLE WINDS.
.TONIGHT...PARTLY CLOUDY. A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE MID 60S. LIGHT AND
VARIABLE WINDS.
.SATURDAY...MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 70S. NORTHEAST WINDS AROUND
10 MPH.
.SATURDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS AROUND 60. LIGHT AND VARIABLE
WINDS.
.SUNDAY...PARTLY CLOUDY. HIGHS IN THE UPPER 70S. LIGHT AND
VARIABLE WINDS.
.SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER 60S.
.MONDAY...PARTLY CLOUDY. HIGHS IN THE UPPER 70S.
.MONDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE LOWER 60S.
.TUESDAY AND TUESDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT
CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS AROUND 80. LOWS IN THE
MID 60S.
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT
CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE MID 80S. LOWS
IN THE UPPER 60S.
.THURSDAY...PARTLY CLOUDY. HIGHS AROUND 80.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A CHANCE OF THUNDERSTORMS AFTER MIDNIGHT TONIGHT
GENERALLY NORTH OF A LINE FROM HIGHLAND PARK TO DE KALB TO AMBOY.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THERE IS A CHANCE OF THUNDERSTORMS ACROSS THE ENTIRE OUTLOOK AREA
SATURDAY THROUGH EARLY SUNDAY MORNING.

THERE WILL BE PERIODIC CHANCES FOR THUNDERSTORMS FROM MONDAY NIGHT
INTO THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.TODAY...MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT AND VARIABLE
WINDS IN THE MORNING BECOMING SOUTH AROUND 10 MPH EARLY IN THE
AFTERNOON...THEN BECOMING LIGHT AND VARIABLE LATE IN THE
AFTERNOON.
.TONIGHT...PARTLY CLOUDY. A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE MID 60S. LIGHT AND
VARIABLE WINDS.
.SATURDAY...MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 70S. NORTHEAST WINDS AROUND
10 MPH.
.SATURDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS AROUND 60. LIGHT AND VARIABLE
WINDS.
.SUNDAY...PARTLY CLOUDY. HIGHS IN THE UPPER 70S. LIGHT AND
VARIABLE WINDS.
.SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER 60S.
.MONDAY...PARTLY CLOUDY. HIGHS IN THE UPPER 70S.
.MONDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE LOWER 60S.
.TUESDAY AND TUESDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT
CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS AROUND 80. LOWS IN THE
MID 60S.
.WEDNESDAY AND WEDNESDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT
CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE MID 80S. LOWS
IN THE UPPER 60S.
.THURSDAY...PARTLY CLOUDY. HIGHS AROUND 80.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TODAY AND TONIGHT.

THERE IS A CHANCE OF THUNDERSTORMS AFTER MIDNIGHT TONIGHT GENERALLY
NORTH OF A LINE FROM HIGHLAND PARK TO DE KALB TO AMBOY.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THERE IS A CHANCE OF THUNDERSTORMS ACROSS THE ENTIRE OUTLOOK AREA
SATURDAY THROUGH EARLY SUNDAY MORNING.

THERE WILL BE PERIODIC CHANCES FOR THUNDERSTORMS FROM MONDAY NIGHT
INTO THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

THERE WILL BE A SLIGHT CHANCE OF THUNDERSTORMS FRIDAY GENERALLY
SOUTH OF A LINE FROM OREGON IN ILLINOIS...TO FOWLER IN INDIANA.

THERE IS A CHANCE OF THUNDERSTORMS ACROSS THE ENTIRE OUTLOOK AREA
SATURDAY INTO EARLY SUNDAY...AND SLIGHT CHANCE OF THUNDERSTORMS
FROM MONDAY NIGHT INTO THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.TONIGHT...MOSTLY CLEAR. LOWS AROUND 60. LIGHT AND VARIABLE
WINDS.
.FRIDAY...PARTLY CLOUDY. HIGHS IN THE LOWER 80S. LIGHT AND
VARIABLE WINDS.
.FRIDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT AND
VARIABLE WINDS.
.SATURDAY...MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 70S. LIGHT AND VARIABLE WINDS.
.SATURDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S. LIGHT AND
VARIABLE WINDS.
.SUNDAY...PARTLY CLOUDY. HIGHS IN THE UPPER 70S.
.SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER 60S.
.MONDAY...PARTLY CLOUDY. HIGHS IN THE UPPER 70S.
.MONDAY NIGHT AND TUESDAY...PARTLY CLOUDY WITH A 20 PERCENT
CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS
IN THE LOWER 80S.
.TUESDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 60S.
.WEDNESDAY THROUGH THURSDAY...PARTLY CLOUDY WITH A 20 PERCENT
CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE MID 80S. LOWS
IN THE UPPER 60S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

WEATHER HAZARDS EXPECTED:

ISOLATED THUNDERSTORMS...WHICH MAY PRODUCE:
OCCASIONAL CLOUD TO GROUND LIGHTNING.
BRIEF DOWNPOURS.

AREAS AFFECTED AND TIMING:

FAR SOUTHEAST PORTIONS OF THE OUTLOOK AREA...GENERALLY ALONG AND
SOUTH OF A LINE FROM PONTIAC ILLINOIS TO VALPARAISO INDIANA
AFTER 1 PM THIS AFTERNOON.

DISCUSSION:

A WEAK COLD FRONT WILL CONTINUE TO SLOWLY DRIFT SOUTHEAST ACROSS
PORTIONS OF THE OUTLOOK AREA SOUTH OF CHICAGO TODAY. THE
COMBINATION OF DAY TIME HEATING...MOISTURE POOLING AHEAD OF THE
FRONTAL BOUNDARY...AND THE APPROACH OF A MID LEVEL DISTURBANCE
THIS AFTERNOON WILL LIKELY RESULT IN ISOLATED THUNDERSTORM
DEVELOPMENT GENERALLY SOUTH OF A PONTIAC TO VALPARAISO LINE BY
MID AFTERNOON. ISOLATED THUNDERSTORMS WILL LIKELY THEN WEAKEN
AND DISSIPATE WITH SUNSET.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

THERE WILL BE A SLIGHT CHANCE OF THUNDERSTORMS FRIDAY GENERALLY
SOUTH OF A LINE FROM ROCKFORD TO MUNCIE INDIANA LINE.

THERE WILL BE PERIODIC CHANCES OF THUNDERSTORMS ACROSS THE OUTLOOK
AREA SATURDAY INTO SUNDAY...AND AGAIN TUESDAY INTO WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.REST OF TODAY...MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT AND
VARIABLE WINDS.
.TONIGHT...MOSTLY CLEAR. LOWS AROUND 60. LIGHT AND VARIABLE
WINDS.
.FRIDAY...PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
.FRIDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT AND
VARIABLE WINDS.
.SATURDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 70S. NORTH WINDS AROUND 10 MPH.
.SATURDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S.
.SUNDAY...PARTLY CLOUDY. A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE MORNING. HIGHS IN THE UPPER 70S.
.SUNDAY NIGHT...PARTLY CLOUDY. LOWS AROUND 60.
.MONDAY AND MONDAY NIGHT...PARTLY CLOUDY. HIGHS IN THE UPPER 70S.
LOWS AROUND 60.
.TUESDAY THROUGH WEDNESDAY...PARTLY CLOUDY WITH A 20 PERCENT
CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE LOWER 80S. LOWS
IN THE MID 60S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TODAY AND TONIGHT.

WEATHER HAZARDS EXPECTED:

ISOLATED THUNDERSTORMS...WHICH MAY PRODUCE:
OCCASIONAL CLOUD TO GROUND LIGHTNING.
BRIEF DOWNPOURS.

AREAS AFFECTED AND TIMING:

FAR SOUTHEAST PORTIONS OF THE OUTLOOK AREA...GENERALLY SOUTH OF
A LINE FROM PONTIAC ILLINOIS TO VALPARAISO INDIANA AFTER 1 PM
THIS AFTERNOON.

DISCUSSION:

A WEAK COLD FRONT WILL CONTINUE TO DRIFT SLOWLY SOUTHEAST
ACROSS PORTIONS OF THE OUTLOOK AREA SOUTH OF CHICAGO TODAY. THE
COMBINATION OF DAY TIME HEATING...MOISTURE POOLING AHEAD OF THE
FRONTAL BOUNDARY...AND THE APPROACH OF A MID LEVEL DISTURBANCE
THIS AFTERNOON WILL LIKELY RESULT IN ISOLATED THUNDERSTORM
DEVELOPMENT GENERALLY SOUTH OF A PONTIAC TO VALPARAISO LINE BY
MID AFTERNOON. ISOLATED THUNDERSTORMS WILL LIKELY THEN WEAKEN
AND DISSIPATE WITH SUNSET.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

THERE WILL BE A SLIGHT CHANCE OF THUNDERSTORMS FRIDAY GENERALLY
SOUTH OF A LINE FROM ROCKFORD TO MUNCIE INDIANA LINE.

THERE WILL BE PERIODIC CHANCES OF THUNDERSTORMS ACROSS THE OUTLOOK
AREA SATURDAY INTO SUNDAY...AND AGAIN TUESDAY INTO WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.REST OF TONIGHT...MOSTLY CLEAR. A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS LATE IN THE EVENING. PATCHY FOG AFTER MIDNIGHT.
LOWS IN THE UPPER 50S. LIGHT AND VARIABLE WINDS.
.THURSDAY...MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT AND
VARIABLE WINDS.
.THURSDAY NIGHT...MOSTLY CLEAR. LOWS AROUND 60. LIGHT AND
VARIABLE WINDS.
.FRIDAY...PARTLY CLOUDY. A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTH
WINDS AROUND 10 MPH.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE MID 60S. LIGHT AND VARIABLE WINDS.
.SATURDAY...MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 70S.
.SATURDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S.
.SUNDAY...PARTLY SUNNY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 70S.
.SUNDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 50S.
.MONDAY...PARTLY CLOUDY. HIGHS IN THE UPPER 70S.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...PARTLY CLOUDY WITH A
20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS AROUND 60.
HIGHS IN THE UPPER 70S.
.WEDNESDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. HIGHS IN THE LOWER 80S.

Short Term Weather

.NOW...

A WEAK BOUNDARY EXTENDING FROM NEAR RACINE WISCONSIN SOUTHWEST TO
NEAR BELVIDERE TO DIXON TO JUST EAST OF THE QUAD CITIES WAS
GENERATING A FEW ISOLATED SHOWERS. AT 845 PM CDT...RADAR INDICATED
A FEW SHOWERS ACROSS MCHENRY COUNTY WITH ADDITIONAL DEVELOPMENT
ACROSS SOUTHERN BOONE AND NORTHEASTERN OGLE COUNTY. THE BOUNDARY
WILL MOVE EASTWARD TOWARDS THE WAUKEGAN...DEKALB...AND MENDOTA
AREAS THROUGH 1030 PM CDT WITH ISOLATED TO SCATTERED SHOWER
DEVELOPMENT CONTINUING...WITH ISOLATED THUNDERSTORMS ALSO
POSSIBLE.

Zone Forecast

.THIS AFTERNOON...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. HIGHS IN THE LOWER 80S. SOUTHWEST
WINDS AROUND 10 MPH EARLY IN THE AFTERNOON BECOMING LIGHT AND
VARIABLE LATE IN THE AFTERNOON.
.TONIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT AND
VARIABLE WINDS.
.THURSDAY...SUNNY. HIGHS IN THE LOWER 80S. LIGHT AND VARIABLE
WINDS.
.THURSDAY NIGHT...CLEAR. LOWS AROUND 60. LIGHT AND VARIABLE
WINDS.
.FRIDAY...MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE MID 60S.
.SATURDAY...MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 70S.
.SATURDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S.
.SUNDAY AND SUNDAY NIGHT...PARTLY CLOUDY WITH A 20 PERCENT CHANCE
OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE UPPER 70S. LOWS AROUND
60.
.MONDAY THROUGH TUESDAY...MOSTLY CLEAR. HIGHS IN THE UPPER 70S.
LOWS IN THE UPPER 50S.

Test Message

THIS IS THE WEEKLY TEST OF THE WXWARN1 ALERT SYSTEM THIS IS ONLY A TEST

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

THERE IS A SLIGHT CHANCE OF A THUNDERSTORM TOWARD MORNING
NORTHWEST OF A WAUKEGAN TO PERU LINE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THERE IS A CHANCE OF THUNDERSTORMS WEDNESDAY INTO EARLY WEDNESDAY
EVENING.

A PERIOD OR TWO OF THUNDERSTORMS LOOKS LIKELY DURING THE TIME
PERIOD FRIDAY NIGHT THROUGH SUNDAY. THE GREATEST CHANCE OF
THUNDERSTORMS AT THIS POINT APPEARS TO BE SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.TONIGHT...PARTLY CLOUDY. A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS DURING THE PREDAWN HOURS. LOWS IN THE LOWER 60S.
LIGHT AND VARIABLE WINDS.
.WEDNESDAY...CLOUDY IN THE MORNING THEN BECOMING PARTLY SUNNY. A
30 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS IN THE
UPPER 70S. LIGHT AND VARIABLE WINDS EARLY IN THE MORNING BECOMING
WEST AROUND 10 MPH IN THE LATE MORNING AND AFTERNOON.
.WEDNESDAY NIGHT...CLEAR. LOWS IN THE UPPER 50S. LIGHT AND
VARIABLE WINDS.
.THURSDAY...SUNNY. HIGHS IN THE LOWER 80S. LIGHT AND VARIABLE
WINDS.
.THURSDAY NIGHT...CLEAR. LOWS IN THE LOWER 60S. LIGHT AND
VARIABLE WINDS.
.FRIDAY...SUNNY. HIGHS IN THE MID 80S.
.FRIDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE MID 60S.
.SATURDAY...PARTLY SUNNY WITH A 40 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS AROUND 80.
.SATURDAY NIGHT...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 60S.
.SUNDAY...PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE UPPER 70S.
.SUNDAY NIGHT THROUGH TUESDAY...MOSTLY CLEAR. LOWS IN THE UPPER
50S. HIGHS IN THE MID 70S.

Hazardous Weather Outlook

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TODAY AND TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...WHICH MAY PRODUCE:

OCCASIONAL CLOUD TO GROUND LIGHTNING.
BRIEF DOWNPOURS.

AREAS AFFECTED AND TIMING:

PORTIONS OF NORTHERN ILLINOIS...MAINLY NORTHWEST OF A PERU TO
WOODSTOCK LINE AFTER 4 AM CDT.

DISCUSSION:

A STRONG MID LEVEL DISTURBANCE AND ASSOCIATED SURFACE LOW
PRESSURE SYSTEM WILL TRACK ACROSS SOUTHERN CANADA INTO ONTARIO
TONIGHT INTO WEDNESDAY. A COLD FRONT TRAILING FROM THIS LOW
WILL EXTEND SOUTHWARD ACROSS THE UPPER MIDWEST OVERNIGHT...AND
WILL LIKELY BE APPROACHING NORTHWEST ILLINOIS BY WEDNESDAY
MORNING. SCATTERED THUNDERSTORMS WILL BE POSSIBLE AHEAD OF THE
COLD FRONT...AND MAY MOVE INTO NORTHERN ILLINOIS TOWARD
SUNRISE. INSTABILITY IS EXPECTED TO BE LIMITED...WITH
THUNDERSTORMS LIKELY WEAKENING AS THEY APPROACH THE AREA.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THERE IS A CHANCE OF THUNDERSTORMS ACROSS THE OUTLOOK AREA ON
WEDNESDAY...AS THE COLD FRONT CONTINUES TO PUSH SOUTHEAST ACROSS
NORTHERN ILLINOIS AND NORTHWEST INDIANA. SCATTERED THUNDERSTORMS
MAY LINGER INTO THE EVENING HOURS ACROSS EASTERN ILLINOIS AND
NORTHWEST INDIANA...GENERALLY EAST OF INTERSTATE 55.

THERE WILL BE ANOTHER PERIODIC CHANCE OF THUNDERSTORMS BEGINNING
FRIDAY NIGHT OVER NORTH CENTRAL ILLINOIS...AND EXPANDING ACROSS
THE ENTIRE OUTLOOK AREA SATURDAY THROUGH SUNDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

Zone Forecast

.TODAY...MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT AND VARIABLE
WINDS IN THE MORNING BECOMING SOUTH AROUND 10 MPH IN THE
AFTERNOON.
.TONIGHT...PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH WINDS
AROUND 10 MPH.
.WEDNESDAY...MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. HIGHS IN THE LOWER 80S. WEST WINDS AROUND
10 MPH.
.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 10 MPH IN THE EVENING BECOMING LIGHT AND VARIABLE
AFTER MIDNIGHT.
.THURSDAY...SUNNY. HIGHS IN THE LOWER 80S. LIGHT AND VARIABLE
WINDS.
.THURSDAY NIGHT...CLEAR. LOWS IN THE LOWER 60S.
.FRIDAY...MOSTLY SUNNY. HIGHS IN THE LOWER 80S.
.FRIDAY NIGHT...MOSTLY CLEAR WITH A 20 PERCENT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE LOWER 60S.
.SATURDAY...PARTLY SUNNY WITH A 30 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S.
.SATURDAY NIGHT...PARTLY CLOUDY WITH A 40 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 60S.
.SUNDAY...PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS AROUND 80.
.SUNDAY NIGHT AND MONDAY...MOSTLY CLEAR. LOWS IN THE LOWER 60S.
HIGHS IN THE LOWER 80S.