FLUS43 KLOT 241600
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 AM CDT WED JUN 24 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-
1100 AM CDT WED JUN 24 2015
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...THIS AFTERNOON AND TONIGHT.
WEATHER HAZARDS EXPECTED:
THUNDERSTORMS...THE STRONGEST MAY PRODUCE:
EXTREMELY HEAVY RAIN AND FLASH FLOODING.
DAMAGING WINDS IN EXCESS OF 70 MPH.
HAIL TO THE SIZE OF QUARTERS.
FREQUENT CLOUD TO GROUND LIGHTNING.
AREAS AFFECTED AND TIMING:
THE GREATEST SEVERE WEATHER THREAT WILL SPREAD EAST ACROSS
NORTHERN ILLINOIS AND NORTHWEST INDIANA LATE IN THE EVENING
AND OVERNIGHT.
DISCUSSION:
A FEW SCATTERED THUNDERSTORMS ARE POSSIBLE MAINLY ACROSS NORTH
CENTRAL ILLINOIS LATE THIS AFTERNOON...HOWEVER THE SEVERE
THREAT IS MINIMAL. STRONGER THUNDERSTORMS ARE EXPECTED TO
DEVELOP OVER IOWA BY EARLY THIS EVENING...THEN MOVE EAST
MERGING INTO A LINE OF STORMS. DAMAGING STRAIGHT LINE WINDS
LOOK TO BE THE PRIMARY SEVERE WEATHER THREAT WITH THIS
ACTIVITY. HOWEVER...SOME AREAS LOOK TO ALSO EXPERIENCE
BACKBUILDING OR TRAINING THUNDERSTORMS WHICH WILL ALSO
INCREASE THE THREAT OF FLASH FLOODING GIVEN THESE STORMS WILL
BE VERY EFFICIENT RAINFALL PRODUCERS WITH 1 TO 2 INCH PER HOUR
RAIN RATES.
MINOR TO MODERATE FLOODING WILL CONTINUE ON PORTIONS OF THE
IROQUOIS...KANKAKEE...AND ILLINOIS RIVERS WITH MAJOR FLOODING
CONTINUING ON PORTIONS OF THE IROQUOIS RIVER IN NORTHWEST
INDIANA.
.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.
PERIODS OF THUNDERSTORMS ARE POSSIBLE THURSDAY...FRIDAY...AND
AGAIN SUNDAY THROUGH TUESDAY.
PORTIONS OF THE IROQUOIS...KANKAKEE...AND ILLINOIS RIVERS WILL
REMAIN IN FLOOD.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL LIKELY BE NECESSARY LATE THIS EVENING AND
OVERNIGHT.
&&
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