FLUS43 KLOT 052035
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
335 PM CDT FRI SEP 5 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-
335 PM CDT FRI SEP 5 2014 /435 PM EDT FRI SEP 5 2014/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TONIGHT.
WEATHER HAZARDS EXPECTED:
SCATTERED THUNDERSTORMS...SOME OF WHICH MAY PRODUCE:
TORRENTIAL DOWNPOURS AND POSSIBLE LOCALIZED FLASH FLOODING.
LOCALLY DAMAGING WINDS TO AROUND 60 MPH.
HAIL UP TO THE SIZE OF QUARTERS.
FREQUENT CLOUD TO GROUND LIGHTNING.
AREAS AFFECTED AND TIMING:
SCATTERED THUNDERSTORMS HAVE MOVED THROUGH FAR NORTHEASTERN
ILLINOIS...PRODUCING STRONG DAMAGING WINDS. ADDITIONAL
THUNDERSTORMS ARE EXPECTED WILL DEVELOP LATER THIS AFTERNOON
ACROSS NORTHERN ILLINOIS AND SPREAD SOUTH AND EASTWARD INTO
AREAS SOUTH OF INTERSTATE 80 AND INTO NORTHWEST INDIANA LATER
BY EARLY THIS EVENING. THE THREAT OF THUNDERSTORMS WILL LINGER
THROUGH TONIGHT...MAINLY SOUTH OF INTERSTATE 80.
DISCUSSION:
A SLOW MOVING COLD FRONT COMBINED WITH UPPER LEVEL DISTURBANCES
WILL RESULT IN ADDITIONAL THUNDERSTORM DEVELOPMENT LATE THIS
AFTERNOON INTO THIS EVENING. VERY UNSTABLE CONDITIONS AND MODERATE
WINDS ALOFT WILL ALLOW SOME OF THE THUNDERSTORMS TO BECOME SEVERE.
THE PRIMARY THREAT WILL BE DAMAGING WINDS WITH SOME POTENTIAL FOR
LARGE HAIL. IN ADDITION...THE VERY HUMID CONDITIONS WILL ALLOW THE
THUNDERSTORMS TO PRODUCE LOCALLY VERY HEAVY RAINFALL AND POSSIBLY
SOME LOCALIZED FLOODING.
.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.
DANGEROUS SWIMMING CONDITIONS ARE POSSIBLE AT LAKE MICHIGAN
BEACHES ON SATURDAY.
THE WILL BE PERIODIC CHANCES FOR THUNDERSTORMS FROM MONDAY NIGHT
THROUGH WEDNESDAY.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL LIKELY BE NECESSARY THROUGH THIS EVENING.
&&
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