HAZARDOUS WEATHER OUTLOOK
Issue Date: 351 PM CST TUE DEC 22 2009
Expiration: 430 AM CST WED DEC 23 2009

Expires:200912231030;;
FLUS43 KMKX 222140 AAB
HWOMKX
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
340 PM CST TUE DEC 22 2009
WIZ046-047-051-052-056>060-062>072-231030-
MARQUETTE-GREEN LAKE-FOND DU LAC-SHEBOYGAN-SAUK-COLUMBIA-DODGE-
WASHINGTON-OZAUKEE-IOWA-DANE-JEFFERSON-WAUKESHA-MILWAUKEE-
LAFAYETTE-GREEN-ROCK-WALWORTH-RACINE-KENOSHA-
340 PM CST TUE DEC 22 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL
WISCONSIN...SOUTH CENTRAL WISCONSIN AND SOUTHEAST WISCONSIN.
.DAY ONE...TONIGHT
LIGHT SNOW WILL TAPER OFF BY EARLY THIS EVENING. TOTAL SNOW
ACCUMULATIONS WILL RANGE FROM UP TO AN INCH FROM MONTELLO TO
SHEBOYGAN...TO 2 TO 4 INCHES FROM DARLINGTON...TO JANESVILLE...TO
TWIN LAKES. ISOLATED 5 INCH AMOUNTS ARE POSSIBLE NEAR THE ILLINOIS
BORDER.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
A COMPLEX STORM SYSTEM WILL FORM OVER THE SOUTHERN PLAINS BY
WEDNESDAY...AND TRACK SLOWLY NORTH INTO THE GREAT LAKES REGION ON
CHRISTMAS DAY.
AT THIS TIME...THE EXPECTED TRACK OF THE STORM SYSTEM WILL TAKE IT
FROM EAST CENTRAL IOWA CHRISTMAS DAY...TO WEST CENTRAL WISCONSIN
FRIDAY NIGHT...AND SLOWLY NORTHEAST AS IT WEAKENS ON SATURDAY. THIS
IS A WARMER TRACK FOR SOUTHERN WISCONSIN...AND IS ONE THAT WILL
RESULT IN A WIDE VARIETY OF WINTRY PRECIPITATION TYPES.
THE MOST HAZARDOUS PERIOD LOOKS TO BE LATE WEDNESDAY NIGHT THROUGH
THURSDAY...WHEN A SURGE OF WARM AIR JUST OFF THE SURFACE AHEAD OF
THIS STORM SYSTEM WILL CREATE THE BEST CHANCE FOR A PERIOD OF
FREEZING RAIN...SNOW AND SLEET. THERE IS A POTENTIAL THAT ICE
ACCUMULATIONS COULD REACH ONE QUARTER TO ONE HALF INCH...CAUSING A
MORE SIGNIFICANT IMPACT.
ADDITIONALLY...THERE IS THE THREAT FOR ENOUGH RAIN TO FALL ON TOP OF
THE CURRENT SNOW PACK TO RESULT IN MINOR FLOODING OF AREA
CREEKS...RIVERS...AND STREAMS. RUNOFF COULD ALSO CAUSE PONDING OF
WATER ON AREA ROADWAYS.
ANY ACCUMULATING SNOW SHOULD OCCUR AT THE BEGINNING OF THIS SYSTEM
WEDNESDAY NIGHT INTO THURSDAY MORNING...AND THEN AGAIN THURSDAY NIGHT
AND FRIDAY AS COLDER AIR POURS BACK INTO THE REGION.
AS A RESULT...A WINTER STORM WATCH HAS BEEN ISSUED FOR ALL OF
SOUTHERN WISCONSIN...FROM WEDNESDAY NIGHT THROUGH THURSDAY. SEE THE
WINTER WEATHER MESSAGE PRODUCT FOR MORE DETAILED INFORMATION.
HOLIDAY TRAVEL IS LIKELY TO BE IMPACTED. GIVEN THE LARGE COMPLEXITY
OF THIS STORM SYSTEM...ADJUSTMENTS TO THE FORECAST ARE STILL LIKELY.
STAY ABREAST OF THE LATEST FORECAST CONCERNING THIS EXPECTED WINTER
STORM FOR THE UPCOMING HOLIDAY PERIOD.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED...BUT SNOWFALL REPORTS FROM
THE SNOWFALL EARLIER TODAY WILL BE APPRECIATED.
$$

WINTER STORM WATCH
Issue Date: 1117 AM CST TUE DEC 22 2009
Expiration: 300 PM CST THU DEC 24 2009

...WINTER STORM WILL IMPACT SOUTHERN WISCONSIN WEDNESDAY NIGHT INTO
THURSDAY...
.MOISTURE WILL SURGE NORTHWARD ACROSS SOUTHERN WISCONSIN LATE
WEDNESDAY AFTERNOON AND WEDNESDAY NIGHT AHEAD OF A LOW PRESSURE
SYSTEM DEVELOPING IN THE CENTRAL PLAINS. PRECIPITATION IS EXPECTED
TO BEGIN AS SNOW...BUT THEN CHANGE INTO A MIX OF SNOW...SLEET...
FREEZING RAIN AND RAIN ON THURSDAY AS WARMER AIR WRAPS INTO THE
SYSTEM.
WIZ046-047-056>058-063-064-069-070-230130-
/O.NEW.KMKX.WS.A.0007.091224T0000Z-091224T2100Z/
MARQUETTE-GREEN LAKE-SAUK-COLUMBIA-DODGE-DANE-JEFFERSON-ROCK-
WALWORTH-
INCLUDING THE CITIES OF...MONTELLO...BERLIN...BARABOO...PORTAGE...
WISCONSIN DELLS...BEAVER DAM...MADISON...JEFFERSON...LAKE MILLS...
JANESVILLE...BELOIT...ELKHORN...LAKE GENEVA
1117 AM CST TUE DEC 22 2009
...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH
THURSDAY AFTERNOON...
THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A
WINTER STORM WATCH...WHICH IS IN EFFECT FROM WEDNESDAY EVENING
THROUGH THURSDAY AFTERNOON.
* PRECIPITATION WILL BEGIN AS MAINLY SNOW ON WEDNESDAY
AFTERNOON...THEN TRANSITION TO A MIX OF FREEZING
RAIN...SLEET...AND SNOW BY THURSDAY MORNING. THE MIX MAY CHANGE
TO ALL RAIN THURSDAY NIGHT...THEN GRADUALLY CHANGE BACK OVER TO
ALL SNOW BY FRIDAY AFTERNOON.
* SNOW AND SLEET ACCUMULATIONS LATE WEDNESDAY AFTERNOON THROUGH
THURSDAY MORNING...2 TO 4 INCHES...WITH UP TO 5 INCHES WELL
NORTHWEST OF MADISON.
* ICE ACCUMULATIONS UP TO HALF AN INCH ARE POSSIBLE THURSDAY
MORNING THROUGH THURSDAY AFTERNOON.
* WINDS...BRISK EAST WINDS OF 15 TO 25 MPH WILL PERSIST THROUGH
MUCH OF WEDNESDAY AND THURSDAY.
* HAZARDOUS TRAVEL ASSOCIATED WITH SNOW AND ICE COVERED ROADS IS
EXPECTED FROM EARLY WEDNESDAY EVENING THROUGH FRIDAY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.
$$