HAZARDOUS WEATHER OUTLOOK
Issue Date: 625 PM CST THU DEC 24 2009
Expiration: 630 PM CST FRI DEC 25 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
ILLINOIS...NORTHWEST ILLINOIS...WEST CENTRAL ILLINOIS...EAST
CENTRAL IOWA...NORTHEAST IOWA...SOUTHEAST IOWA AND NORTHEAST
MISSOURI.
.DAY ONE...TONIGHT
A FLOOD WATCH IS IN EFFECT THROUGH TONIGHT FOR MUCH OF THE
OUTLOOK AREA.
A MAJOR STORM SYSTEM WILL TRACK FROM THE LOWER MISSISSIPPI VALLEY
INTO TO NORTHEAST MISSOURI TONIGHT. WIDESPREAD RAIN AND ISOLATED
THUNDERSTORMS WILL STREAM NORTH AHEAD OF THE STORM TONIGHT. BY
MORNING RAINFALL AMOUNTS OF 1 TO 1.25 INCHES WILL BE POSSIBLE OVER
EAST CENTRAL IOWA AND NORTHWEST AND WEST CENTRAL ILLINOIS. THIS
RAIN WILL BE FALLING ON COLD...FROZEN GROUND AND DENSE SNOW-PACK
ESPECIALLY ALONG AND NORTH OF INTERSTATE 80. THESE CONDITIONS WILL CREATE
SIGNIFICANT RUNOFF...WHICH WILL RESULT IN RISES AND EVENTUAL
FLOODING ALONG SOME AREA RIVERS AND STREAMS...AS WELL AS FLOODING
OF LOW LYING OR POORLY DRAINED AREAS.
.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY
THE RAIN WILL CHANGE TO SNOW FRIDAY MORNING FROM THE SOUTHWEST TO
THE NORTHEAST. LIGHT TO MODERATE SNOW WILL CONTINUE THROUGH SATURDAY
AFTERNOON. BY SATURDAY EVENING SNOW ACCUMULATIONS IN THE 2 TO 4
INCHE INCH RANGE ARE EXPECTED OVER MOST OF THE AREA.
LIGHT SNOW OR FLURRIES WILL CONTINUE SATURDAY NIGHT INTO SUNDAY
NIGHT WITH LITTLE ADDITIONAL ACCUMULATION.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED TONIGHT. HOWEVER REPORTS OF
RAINFALL TOTALS TONIGHT AND SNOW ACCUMULATIONS FRIDAY THROUGH
SUNDAY WILL BE APPRECIATED.
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