HAZARDOUS WEATHER OUTLOOK
Issue Date: 350 PM CST SAT DEC 19 2009
Expiration: 400 PM CST SUN DEC 20 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TONIGHT.
LIGHT SNOW WILL DIMINISH TO FLURRIES ACROSS NORTHEAST AND CENTRAL
ILLINOIS BY EARLY EVENING...AND ACROSS NORTHWEST INDIANA BY MID OR
LATE EVENING. MINOR ACCUMULATIONS OF GENERALLY A HALF INCH OR LESS
ARE POSSIBLE THIS EVENING MAINLY FROM THE ILLINOIS INDIANA STATE
LINE EAST INTO NORTHWEST INDIANA. LIGHT SNOW SHOWERS OR FLURRIES
MAY LINGER NEAR THE LAKE ACROSS NORTHWEST INDIANA OVERNIGHT...BUT
ANY ADDITIONAL ACCUMULATION SHOULD REMAIN UNDER AN INCH AND NO
SIGNIFICANT LAKE EFFECT SNOW IS EXPECTED.
THERE IS A CONTINUED RISK OF LOCALIZED ICE JAM FLOODING ALONG
AREA RIVERS.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
A FAST MOVING ALBERTA CLIPPER WILL MOVE ACROSS THE MIDWEST SUNDAY
INTO SUNDAY EVENING...AND IS EXPECTED TO BRING A PERIOD OF SNOW TO
THE AREA. SNOW IS EXPECTED TO DEVELOP ACROSS NORTHWEST ILLINOIS BY
LATE MORNING...AND SPREAD EAST ACROSS THE REMAINDER OF THE OUTLOOK
AREA DURING THE EARLY AFTERNOON. ACCUMULATIONS OF 1 TO 2 INCHES
ARE POSSIBLE BY THE TIME SNOW DIMINISHES SUNDAY EVENING...WITH A
FEW LOCATIONS PERHAPS RECEIVING AS MUCH AS 3 INCHES OF NEW SNOW.
ANOTHER CHANCE OF LIGHT SNOW IS POSSIBLE MONDAY NIGHT INTO EARLY
TUESDAY...ESPECIALLY FOR PORTIONS OF THE OUTLOOK AREA SOUTH 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 THURSDAY
THROUGH SATURDAY PERIOD SHOULD CONTINUE TO MONITOR THE LATEST
FORECASTS AND STATEMENTS FROM THE NATIONAL WEATHER SERVICE FOR
INFORMATION ON THIS DEVELOPING WINTER STORM.
.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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