HAZARDOUS WEATHER OUTLOOK
Issue Date: 404 PM CST WED DEC 23 2009
Expiration: 445 AM CST THU DEC 24 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL
WISCONSIN...SOUTH CENTRAL WISCONSIN AND SOUTHEAST WISCONSIN.
.DAY ONE...TONIGHT
A SURGE OF MOISTURE ALONG WITH AN UPPER LEVEL DISTURBANCE SPAWNED BY
A DEVELOPING LARGE AND STRONG AREA OF LOW PRESSURE IN THE SOUTHERN
PLAINS WILL BRING A MIXTURE OF SNOW...SLEET AND FREEZING RAIN TO
SOUTHERN WISCONSIN TONIGHT. A WINTER STORM WARNING HAS BEEN ISSUED
FOR SOUTH CENTRAL WISCONSIN...AND A WINTER WEATHER ADVISORY
CONTINUES FOR SOUTHEAST WISCONSIN.
FOR MORE DETAILED INFORMATION...SEE THE LATEST WINTER WEATHER
MESSAGE.
.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY
THE WINTER STORM WARNING AND WINTER WEATHER ADVISORY WILL REMAIN IN
EFFECT THROUGH THURSDAY MORNING...DUE TO THE LIKELIHOOD OF A
LINGERING MIXTURE OF RAIN AND LIGHT FREEZING RAIN.
THE MIXTURE IS EXPECTED TO TRANSITION TO PERIODS OF RAIN AND DRIZZLE
THURSDAY AFTERNOON...AS A SURGE OF DEEP MOISTURE AND WARMER AIR
PUSHES NORTHWARD INTO SOUTHERN WISCONSIN AHEAD OF STRONG LOW
PRESSURE OVER MISSOURI.
THE RAIN IS EXPECTED TO BE HEAVY AT TIMES THURSDAY AND THURSDAY
NIGHT...LASTING INTO FRIDAY MORNING. RAINFALL OF ONE INCH...TO ONE
AND ONE QUARTER INCHES...ARE EXPECTED TO FALL QUICKLY ON TOP OF THE
CURRENT SNOW PACK AND FROZEN GROUND. THIS WILL LIKELY RESULT IN
MINOR FLOODING OF AREA CREEKS...RIVERS...AND STREAMS. RUNOFF WOULD
ALSO CAUSE PONDING OF WATER ON AREA ROADWAYS.
PRIOR TO THURSDAY NIGHT...IT WILL BE A GOOD IDEA TO MAKE SURE THE
CLOSEST STREET DRAIN TO YOUR RESIDENCE IS UNCLOGGED BY SNOW AND
DEBRIS.
THE PERIODS OF RAIN WILL CHANGE BACK TO OCCASIONAL SNOW ON
FRIDAY...AS COLDER AIR WRAPS AROUND THE WEAKENING AREA OF LOW
PRESSURE OVER IOWA. PERIODS OF LIGHT SNOW WILL THEN CONTINUE INTO
SATURDAY...WITH LIGHT ACCUMULATIONS AS THE LOW PRESSURE AREA
MEANDERS TO THE EAST.
THE PERIODS OF MIXED PRECIPITATION WILL LIKELY AFFECT HOLIDAY
TRAVEL...ESPECIALLY TONIGHT INTO THURSDAY MORNING. STAY UPDATED ON
THE LATEST FORECAST CONCERNING THIS PERIOD OF MIXED
PRECIPITATION...AND BE READY TO ALTER YOUR TRAVEL PLANS.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED...BUT SNOW...SLEET AND ICE
REPORTS ARE APPRECIATED.
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