HAZARDOUS WEATHER OUTLOOK
Issue Date: 1017 AM CST WED DEC 30 2009
Expiration: 1030 AM CST THU DEC 31 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TODAY AND TONIGHT.
PORTIONS OF THE UPPER DES PLAINES AND ILLINOIS RIVERS WILL REMAIN
IN FLOOD.
INTERMITTENT SNOW WILL FALL THE REMAINDER OF TODAY THROUGH
TONIGHT. TOTAL SNOW ACCUMULATIONS OF ONE TO THREE INCHES ARE EXPECTED
BY DAYBREAK THURSDAY. SNOW WILL CAUSE INCREASED TRAVEL TIMES AS A
RESULT OF WET OR SLICK ROADWAYS. MOST OF THIS SNOW ACCUMULATION
WILL OCCUR DURING THE AFTERNOON AND EVENING HOURS.
SOME LOCALIZED WATER LEVEL RISES ON AREA RIVERS ARE POSSIBLE DUE
TO ICE JAMS.
.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.
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.
ARCTIC AIR COMBINED WITH BRISK WINDS WILL LOWER WIND CHILLS TO AS
LOW AS AROUND MINUS 15 DURING THE MORNING HOURS OF
FRIDAY...SATURDAY... AND SUNDAY.
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.
.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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