FLUS43 KLOT 220943
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
443 AM CDT MON JUN 22 2015
WINNEBAGO-BOONE-MCHENRY-LAKE ILLINOIS-OGLE-LEE-DE KALB-KANE-
DUPAGE-COOK-LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-
IROQUOIS-FORD-LAKE INDIANA-PORTER-NEWTON-JASPER-BENTON-
443 AM CDT MON JUN 22 2015
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TODAY AND TONIGHT.
WEATHER HAZARDS EXPECTED:
THUNDERSTORMS...THE STRONGEST MAY PRODUCE:
DAMAGING WINDS IN EXCESS OF 70 MPH.
HAIL TO THE SIZE OF GOLFBALLS.
HEAVY RAIN.
FREQUENT CLOUD TO GROUND LIGHTNING.
PERHAPS A TORNADO OR TWO.
AREAS AFFECTED AND TIMING:
THERE IS A CHANCE OF THUNDERSTORMS WITH AN ASSOCIATED LOW RISK
OF DAMAGING WINDS LATE THIS MORNING INTO EARLY THIS
AFTERNOON...MAINLY NORTH OF INTERSTATES 88 AND 290. THE
POTENTIALLY MORE SIGNIFICANT THUNDERSTORM AND SEVERE WEATHER
THREAT LOOKS TO BE EARLY THIS EVENING...ESPECIALLY NORTH OF
INTERSTATE 80. THUNDERSTORMS WILL SPREAD SOUTH OF I-80 MID TO
LATE EVENING WITH THE SEVERE THREAT GRADUALLY DIMINISHING.
DISCUSSION:
ISOLATED THUNDERSTORMS ARE POSSIBLE THROUGH MID MORNING AHEAD
OF A CLUSTER OF THUNDERSTORMS THAT WILL RACE RAPIDLY EASTWARD
ACROSS SOUTHERN WISCONSIN OR NORTHERN ILLINOIS LATE THIS
MORNING OR EARLY THIS AFTERNOON. SOME LIMITED THREAT OF
DAMAGING WINDS COULD ACCOMPANY THE STORMS LATE THIS MORNING
INTO THIS AFTERNOON.
EXPLOSIVE SEVERE THUNDERSTORM DEVELOPMENT IS EXPECTED ACROSS
SOUTHERN WISCONSIN SOUTHWEST INTO IOWA LATE THIS AFTERNOON.
THESE STORMS ARE THEN FORECAST TO SPREAD SOUTHEAST INTO
NORTHERN ILLINOIS EARLY THIS EVENING. ASSUMING STORMS DEVELOP
AS EXPECTED...THEY WOULD POSE A RISK OF LARGE AND DAMAGING HAIL
AS WELL AS STRONG DAMAGING WINDS. AN ISOLATED TORNADO OR TWO
CANNOT BE RULED OUT. IN ADDITION...THE STORMS WILL BE CAPABLE
OF PRODUCING TORRENTIAL DOWNPOURS AND ISOLATED MINOR FLOODING
PROBLEMS. THE THUNDERSTORMS WILL SPREAD SOUTHWARD AND AFFECT
AREAS SOUTH OF INTERSTATE 80 BY MID TO LATE EVENING...THOUGH
THE THREAT OF SEVERE WEATHER IS EXPECTED TO GRADUALLY DIMINISH
AS THE EVENING WEARS ON.
MODERATE TO MAJOR FLOODING CONTINUES ON THE PORTIONS OF THE IROQUOIS
RIVER...MODERATE FLOODING CONTINUES ON THE ILLINOIS RIVER NEAR LA
SALLE...AND MINOR TO MODERATE FLOODING CONTINUES ON PORTIONS OF
THE KANKAKEE RIVER.
.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.
THUNDERSTORMS ARE POSSIBLE AGAIN AS EARLY AS WEDNESDAY...BUT ARE
MORE LIKELY WEDNESDAY NIGHT INTO THURSDAY MORNING. SOME OF THESE
STORMS COULD POTENTIALLY BE SEVERE...THOUGH THE MORE LIKELY HAZARD
WILL PROBABLY BE HEAVY RAINFALL AND THE THREAT OF FLASH FLOODING.
PORTIONS OF THE IROQUOIS...KANKAKEE...AND ILLINOIS RIVERS WILL
REMAIN IN FLOOD.
.SPOTTER INFORMATION STATEMENT...
SPOTTERS MAY BE NEEDED...ESPECIALLY EARLY THIS EVENING.
&&
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