FLUS43 KLOT 151658
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1158 AM CDT MON JUN 15 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-
1158 AM CDT MON JUN 15 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...SOME OF WHICH MAY PRODUCE:
FREQUENT CLOUD TO GROUND LIGHTNING.
VERY HEAVY RAINFALL AND FLASH FLOODING.
ISOLATED WINDS GUSTS ABOVE 60 MPH.
AREAS AFFECTED AND TIMING:
SCATTERED THUNDERSTORMS WILL LIKELY GROW MORE NUMEROUS THIS
AFTERNOON ACROSS THE OUTLOOK AREA AND CONTINUE INTO THIS
EVENING BEFORE GRADUALLY SHIFTING SOUTH WITH TIME AND ENDING
NORTH OF INTERSTATE 80 TONIGHT.
DISCUSSION:
THUNDERSTORMS WILL BECOME MORE NUMEROUS THIS AFTERNOON AS A
SLOW MOVING FRONT APPROACHES THE AREA. THE ATMOSPHERE IS
EXTREMELY MOIST AND ANY STORMS THAT FORM TODAY WILL HAVE THE
POTENTIAL TO PRODUCE TORRENTIAL DOWNPOURS...POTENTIALLY UPWARDS
OF 2 INCHES IN AN HOUR OR LESS. IN ADDITION TO THE HEAVY
RAIN...WHICH MAY RESULT IN LOCALIZED FLASH FLOODING...A COUPLE
OF THE STORMS COULD PRODUCE WIND GUSTS LOCALLY OVER 60 MPH.
IN ADDITION...PORTIONS OF THE IROQUOIS...KANKAKEE...AND
ILLINOIS RIVERS WILL REMAIN IN FLOOD.
.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.
THERE WILL BE PERIODIC CHANCES OF THUNDERSTORMS TUESDAY THROUGH
THE WEEKEND.
PORTIONS OF THE IROQUOIS...KANKAKEE...AND ILLINOIS RIVERS WILL
REMAIN IN FLOOD.
.SPOTTER INFORMATION STATEMENT...
DUE TO THE ISOLATED NATURE OF THE SEVERE WEATHER THREAT...SPOTTER
ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT...HOWEVER ANY
OBSERVATIONS OF FLOODING OR MEASURED HEAVY RAIN TOTALS WOULD BE
APPRECIATED.
&&
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