HAZARDOUS WEATHER OUTLOOK
Issue Date: 400 PM CST WED DEC 30 2009
Expiration: 400 PM CST THU DEC 31 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TONIGHT.
INTERMITTENT LIGHT SNOW WILL CONTINUE TONIGHT. NEW NIGHT TIME SNOW
ACCUMULATIONS WILL BE AROUND 1 INCH. SNOW WILL CAUSE INCREASED
TRAVEL TIMES AS A RESULT OF WET OR SLICK ROADWAYS. MOST OF THIS
SNOW ACCUMULATION WILL BETWEEN 5 PM AND 2 AM.
PORTIONS OF THE UPPER DES PLAINES AND ILLINOIS RIVERS WILL REMAIN
IN FLOOD.
SOME LOCALIZED WATER LEVEL RISES ON AREA RIVERS ARE POSSIBLE DUE
TO ICE JAMS.
.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.
WIND CHILL VALUES WILL RANGE FROM MINUS 10 TO MINUS 15 DURING THE
MORNING HOURS OF FRIDAY...SATURDAY... AND SUNDAY AS A RESULT OF
ARCTIC AIR AND BRISK NORTHWEST WINDS ACROSS THE AREA.
LAKE EFFECT SNOW WILL DEVELOP OVER NORTHWEST INDIANA IN PORTER
AND LAKE COUNTIES EXTENDING INTO NEWTON AND JASPER COUNTIES
THURSDAY NIGHT AND CONTINUING THROUGH SUNDAY. ACCUMULATIONS FROM
1 TO 3 INCHES ARE EXPECTED IN LAKE EFFECT SNOW BANDS THURSDAY
NIGHT AND FRIDAY... WITH MORE SIGNIFICANT ACCUMULATIONS POSSIBLE
FRIDAY NIGHT THROUGH SUNDAY. MONITOR LATER FORECASTS FOR UPDATES.
PORTIONS OF THE UPPER DES PLAINES AND ILLINOIS RIVERS WILL REMAIN
IN FLOOD INTO FRIDAY.
LOCALIZED ICE JAM FLOODING IS POSSIBLE ON AREA RIVERS AS ANOTHER
ARCTIC AIR MASS MOVES INTO THE AREA ON THURSDAY...AND LINGERS
THROUGH EARLY NEXT WEEK.
.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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