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HAZARDOUS WEATHER OUTLOOK Issue Date: 715 AM CDT MON SEP 6 2010 Expiration: 715 AM CDT TUE SEP 07 2010
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TODAY AND TONIGHT.
WEATHER HAZARDS EXPECTED:
SCATTERED THUNDERSTORMS...SOME MAY PRODUCE
WIND GUSTS TO 50 MPH
CLOUD TO GROUND LIGHTNING
LOCAL BRIEF HEAVY RAIN
AREAS AFFECTED AND TIMING:
SCATTERED SHOWERS AND THUNDERSTORMS WILL END BY MID OR LATE
MORNING. SCATTERED THUNDERSTORMS ARE POSSIBLE AGAIN AFTER
MIDNIGHT TONIGHT.
DISCUSSION:
SCATTERED SHOWERS AND THUNDERSTORMS ASSOCIATED WITH A STRONG
LOW LEVEL JET STREAM THIS MORNING...WILL DISSIPATE AND SHIFT
NORTHEAST OUT OF ILLINOIS AND INDIANA BY MID OR LATE MORNING AS
A WARM FRONT LIFTS NORTH. THUNDERSTORMS ARE EXPECTED TO DEVELOP
ALONG A COLD FRONT LATE THIS AFTERNOON FROM SOUTHWEST MINNESOTA
TO CENTRAL KANSAS. THE THUNDERSTORMS WILL LIKELY DISSIPATE AS
THEY MOVE EAST ACROSS THE MISSISSIPPI RIVER INTO A DRIER AND
MORE STABLE AIR MASS LATE TONIGHT.
DRY VEGETATION...STRONG WINDS...AND LOW HUMIDITY WILL CREATE AN
INCREASED FIRE DANGER TODAY...MAINLY SOUTHEAST OF A LINE FROM
PONTIAC TO VALPARAISO.
.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.
IT WILL BE WINDY TUESDAY AND TUESDAY EVENING WITH WEST WINDS 20
TO 35 MPH.
THERE IS A CHANCE OF THUNDERSTORMS THURSDAY NIGHT THROUGH SATURDAY
NIGHT.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.
&&
COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO
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