HYDROLOGIC OUTLOOK
Warning Issue Date: 344 PM CST WED DEC 23 2009
HEAVY RAINFALL COULD CAUSE FLOODING ACROSS SOUTHERN
WISCONSIN...
A STRONG WINTER STORM WILL BRING A WINTRY MIX OVER SOUTHERN
WISCONSIN TONIGHT...THEN PERIODS OF MODERATE RAIN THURSDAY THROUGH
THURSDAY NIGHT...LASTING INTO FRIDAY MORNING. FORECAST RAINFALL
TOTALS WILL RANGE FROM BETWEEN 1 INCH AND 1.2 INCHES.
SNOW PACK OVER THE AREA IS HOLDING AN ADDITIONAL 1 TO 1.5 INCHES OF
WATER THAT WILL BE RELEASED WITH THE RAINFALL AND MELTING FROM
TEMPERATURES RISING INTO THE MID TO UPPER 30S.
WITH THE FROZEN GROUND...THE RAIN AND MELT WATER WILL NOT BE ABLE
TO PERCOLATE INTO THE SOIL...AND WILL RUN OFF INTO AREA RIVERS AND
STREAMS AND LOW-LYING AREAS. ANY STREETS OR ROADWAYS WITH POOR
DRAINAGE DUE TO SNOW OR DEBRIS-CLOGGED STORM DRAINS WILL ALSO FILL
WITH WATER.
PERSONS LIVING NEAR FAST-RESPONDING RIVERS AND STREAMS...OR IN LOW-
LYING DRAINAGE AREAS SHOULD MONITOR THE LATEST FORECASTS FOR
UPDATED INFORMATION ON THIS FLOODING THREAT. MOTORISTS SHOULD BE
PREPARED FOR FLOODED INTERSECTIONS AND OVERPASSES.
$$
REM
WINTER WEATHER ADVISORY
Warning Issue Date: 357 PM CST WED DEC 23 2009
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
THURSDAY...
A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
THURSDAY.
* PRECIPITATION WILL BEGIN AS MAINLY LIGHT FREEZING RAIN AND LIGHT
SNOW...THEN TO A PERIOD OF SNOW WITH SLEET MIXING IN AT TIMES THIS
EVENING. IT WILL TRANSITION TO A MIX OF FREEZING RAIN AND SLEET
LATER TONIGHT INTO THURSDAY MORNING. THE MIXTURE IS EXPECTED TO
CHANGE OVER TO MOSTLY RAIN AND DRIZZLE ON THURSDAY...THEN CHANGE
BACK OVER TO ALL SNOW ON FRIDAY.
* TOTAL SNOW AND SLEET ACCUMULATIONS EXPECTED INTO THURSDAY
MORNING...1 TO 2 INCHES.
* ICE ACCUMULATIONS LESS THAN ONE QUARTER INCH ARE POSSIBLE INTO
THURSDAY MORNING.
* WINDS...BLUSTERY EAST WINDS OF 15 TO 25 MPH WITH GUSTS TO 30
MPH WILL CONTINUE INTO THURSDAY MORNING.
* HAZARDOUS TRAVEL ASSOCIATED WITH SNOW AND ICE COVERED ROADS IS
EXPECTED TO DEVELOP TONIGHT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.
$$
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