HAZARDOUS WEATHER OUTLOOK
Issue Date: 1217 PM CST SUN DEC 20 2009
Expiration: 1230 PM CST MON DEC 21 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...THIS AFTERNOON AND TONIGHT.
SNOW WILL SPREAD ACROSS NORTHERN ILLINOIS AND NORTHWEST INDIANA
THIS AFTERNOON. IN INCH OR TWO OF ACCUMULATION IS POSSIBLE...
ESPECIALLY ALONG AND SOUTH OF A STERLING...TO KANKAKEE AND
RENSSELAER LINE. WHILE ACCUMULATIONS ARE NOT EXPECTED TO BE
EXCESSIVE...BRIEF PERIODS OF MODERATE SNOW MAY REDUCE VISIBILITY
TO LESS THAN A MILE AT TIMES IN THESE AREAS WITH QUICK
ACCUMULATION ON ROADWAYS. SNOW WILL TAPER OFF FROM WEST TO EAST
THIS EVENING.
THERE IS A CONTINUED RISK OF LOCALIZED ICE JAM FLOODING ALONG
AREA RIVERS.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
ANOTHER CHANCE OF SNOW IS POSSIBLE MONDAY NIGHT INTO EARLY
TUESDAY...ESPECIALLY FOR PORTIONS OF THE OUTLOOK AREA ALONG AND
NORTH OF INTERSTATE 80.
CURRENT LONG RANGE COMPUTER MODELS INDICATE THE POTENTIAL FOR A
SIGNIFICANT WINTER STORM WHICH MAY AFFECT PORTIONS OF THE MIDWEST
DURING THE LATTER HALF OF NEXT WEEK. THIS STORM COULD PRODUCE A
COMBINATION OF ACCUMULATING SNOW...AND MIXED PRECIPITATION ACROSS
THE REGION. AT THIS DISTANCE...IT IS TOO EARLY TO DETERMINE THE
EXACT STRENGTH AND ULTIMATE PATH OF THIS STORM SYSTEM. HOWEVER...
PERSONS PLANNING TRAVEL ACROSS THE MIDWEST DURING THE CHRISTMAS
HOLIDAY PERIOD SHOULD CONTINUE TO MONITOR LATEST FORECASTS AND
STATEMENTS FROM THE NATIONAL WEATHER SERVICE FOR INFORMATION ON
THIS POTENTIAL WINTER STORM.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT...
HOWEVER SPOTTERS ARE ENCOURAGED TO REPORT SNOWFALL TOTALS TO THE
NATIONAL WEATHER SERVICE CHICAGO.
&&
COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO
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