FLUS43 KLOT 292053
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
353 PM CDT SUN JUN 29 2014
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-
353 PM CDT SUN JUN 29 2014 /453 PM EDT SUN JUN 29 2014/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TONIGHT.
WEATHER HAZARDS EXPECTED:
SCATTERED SEVERE THUNDERSTORMS...SOME OF WHICH MAY PRODUCE:
LOCALLY HEAVY DOWNPOURS.
FREQUENT CLOUD TO GROUND LIGHTNING.
WIND GUSTS TO 60 MPH.
AREAS AFFECTED AND TIMING:
ISOLATED STORMS POSSIBLE EARLY THIS EVENING...THEN AN
INCREASING COVERAGE AND INTENSITY ALONG AND WEST OF
INTERSTATE 39 LATE THIS EVENING. OVERSPREADING THE REMAINDER
OF NORTHERN ILLINOIS OVERNIGHT.
DISCUSSION:
THE ATMOSPHERE HAS REMAINED CAPPED THIS AFTERNOON ACROSS
ALL OF THE REGION...WHICH HAS INHIBITED THE DEVELOPMENT
OF THUNDERSTORMS. AN UPPER LEVEL DISTURBANCE IN WESTERN
IOWA IS EXPECTED TO BE THE FOCUS FOR THUNDERSTORM DEVELOPMENT
THIS EVENING. THIS AREA OF THUNDERSTORM ACTIVITY WOULD SLIDE
EAST ACROSS IOWA REACHING WESTERN ILLINOIS LATE THIS EVENING
INTO THE OVERNIGHT HOURS. SOME OF THESE THUNDERSTORMS COULD BE
SEVERE ACROSS NORTHERN ILLINOIS...WITH DAMAGING WINDS THE
PRIMARY THREAT. STORMS SHOULD DIMINISH IN INTENSITY OVERNIGHT
AS THEY MOVE FARTHER EAST. LOCALLY HEAVY RAINFALL WILL BE
POSSIBLE WITH SOME OF THESE STORMS.
PORTIONS OF THE IROQUOIS AND KANKAKEE RIVERS WILL REMAIN IN
FLOOD.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
THUNDERSTORMS ARE LIKELY MONDAY AFTERNOON AND NIGHT...WITH THE
INCREASING POTENTIAL FOR SEVERE STORMS IN THE AFTERNOON AND
EVENING HOURS. STRONG DAMAGING WINDS...LARGE HAIL...AND LOCALLY
HEAVY RAINFALL WILL BE THE MOST PROBABLE THREATS WITH THESE
STORMS.
WATER LEVELS WILL REMAIN HIGH ALONG PORTIONS OF THE KANKAKEE
RIVER THROUGH AT LEAST THE MIDDLE OF THE WEEK.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE NEEDED LATE THIS EVENING THROUGH TONIGHT.
&&
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