HAZARDOUS WEATHER OUTLOOK
Issue Date: 753 AM CST THU DEC 24 2009
Expiration: 800 AM CST FRI DEC 25 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TODAY AND TONIGHT.
FREEZING RAIN WILL CONTINUE ACROSS THE NORTHERN HALF OF THE
OUTLOOK AREA THROUGH MIDDAY TODAY. ADDITIONAL ICE ACCUMULATIONS
WILL BE UP TO A TENTH OF AN INCH...WITH THE GREATEST
ACCUMULATIONS ON UNTREATED AND ELEVATED SURFACES. PLEASE REFERENCE
THE LATEST WINTER WEATHER STATEMENTS FOR WARNINGS AND ADVISORIES
THAT ARE IN EFFECT...AS WELL AS THE MOST UP TO DATE FORECAST
INFORMATION.
BY NOON TODAY...TEMPERATURES ARE EXPECTED TO RISE ABOVE
FREEZING. AS THIS TAKES PLACE...PRECIPITATION WILL TRANSITION
FROM FREEZING RAIN TO RAIN ACROSS THE OUTLOOK AREA. MODERATE TO
HEAVY RAIN IS EXPECTED TO PERSIST FROM THE AFTERNOON THROUGH THE
OVERNIGHT HOURS. THIS RAINFALL WILL COMBINE WITH RAPIDLY MELTING
SNOW AND ICE TO CREATE SIGNIFICANT AMOUNTS OF RUNOFF...WHICH MAY
RESULT IN RISES ALONG AREA RIVERS...AS WELL FLOODING OF LOW LYING
AND FLOOD PRONE AREAS.
.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.
FLOODING THAT OCCURS AS A RESULT OF RAIN THURSDAY AFTERNOON
THROUGH FRIDAY MORNING WILL LIKELY PERSIST THROUGH A PORTION OF
THE DAY TWO THROUGH SEVEN PERIOD.
PRECIPITATION IS EXPECTED TO CHANGE BACK TO LIGHT SNOW SHOWERS
DURING THE DAY ON FRIDAY...AND THESE SNOW SHOWERS WILL PERSIST
THROUGH LATE SUNDAY. 1 TO 3 ADDITIONAL INCHES OF SNOW COULD
ACCUMULATE BY SUNDAY NIGHT.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH
TONIGHT...HOWEVER...SPOTTERS ARE ENCOURAGED TO REPORT ANY OBSERVED
FLOODING TO THE NATIONAL WEATHER SERVICE IN CHICAGO.
&&
COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO
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