Alert archive / Wisconsin / Winter Storm Warnings in 2009
Winter Storm Warning 6, NWS Milwaukee, WI
NWS Milwaukee, WI issued this winter storm warning at Dec 23, 2009, 3:57 PM CST for 9 counties in Wisconsin. It was in force for 12 hr. 11 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 23, 2009, 3:57 PM CST (21:57 UTC)
- Expired
- Dec 24, 2009, 3:37 AM CST
- In force
- 12 hr
- Issued by
- NWS Milwaukee, WI
Counties Columbia County, WI, Dane County, WI, Green County, WI, Green Lake County, WI, Iowa County, WI, Lafayette County, WI, Marquette County, WI, Rock County, WI, Sauk County, WI
The radar
The Milwaukee radar (KMKX), 86 km from the middle of the area, began a volume at 21:58 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 23, 5:43 PM CST | SNOW 1.5 | 8 Sw Madison, WI | TAKEN AT WISC-TV |
| Dec 23, 5:55 PM CST | SNOW 1.5 | Sun Prairie, WI | MAINLY SNOW WITH SOME SLEET MIXING. |
| Dec 23, 7:15 PM CST | FREEZING RAIN 0.04 | 2 S Milton, WI | DRIVING SOUTH BETWEEN MILTON AND JANESVILLE, RAIN FREEZING ON CONTACT. |
| Dec 23, 8:00 PM CST | SNOW 1.5 | 3 Wsw Madison, WI | SNOWFALL SINCE 3 PM...MIXED WITH SLEET SINCE 5PM |
| Dec 23, 8:20 PM CST | SNOW 1.6 | 1 Nw Middleton, WI | FREEZING RAIN MIXING WITH SNOW. |
| Dec 23, 8:30 PM CST | SNOW 3 | Sun Prairie, WI | LIGHT SNOW AND SOME SLEET |
| Dec 23, 9:30 PM CST | SNOW 2.2 | Oregon, WI | MIXTURE OF FREEZING RAIN AND SNOW...TRACE OF ICE ON SURFACES |
| Dec 23, 9:34 PM CST | FREEZING RAIN 0 | 6 Nnw Verona, WI | SLEET AND FREEZING RAIN OBSERVED |
| Dec 23, 10:30 PM CST | FREEZING RAIN 0.1 | 8 Sw Madison, WI | REPORTED AT WISC-TV...ALL FREEZING RAIN NOW |
| Dec 23, 10:40 PM CST | FREEZING RAIN 0.1 | 1 Nw Middleton, WI | |
| Dec 24, 3:00 AM CST | FREEZING RAIN 0.12 | 5 Sw Madison, WI | SNOW CHANGED TO FREEZING RAIN AT 11 PM WED. 11 PM WED TO 3 AM THU RECEIVED 0.09 LIQUID AND APPROXIMATELY ONE EIGHTH INCH GLAZE. BUSHES AND EVERGREENS COATED IN GLAZE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.0 hours before the alert went out and 187 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 623 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- -49 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS43 KMKX 232157 WSWMKX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 357 PM CST WED DEC 23 2009 ...MIXTURE OF PRECIPITATION EXPECTED INTO THURSDAY MORNING... .A SURGE OF MOISTURE AHEAD OF A DEVELOPING LOW PRESSURE SYSTEM IN THE SOUTHERN PLAINS WILL PRODUCE A MIXTURE OF SNOW...SLEET AND FREEZING RAIN ACROSS SOUTHERN WISCONSIN INTO THURSDAY MORNING. THE PRECIPITATION WILL START OUT AS A LIGHT SNOW...LIGHT FREEZING RAIN AND SLEET MIX...THEN TRANSITION TO SNOW THIS EVENING...WITH SLEET MIXED IN AT TIMES. IT WILL THEN BECOME A MIXTURE OF FREEZING RAIN AND SLEET LATE TONIGHT. THE MIXTURE IS EXPECTED TO CHANGE TO MOSTLY RAIN AND DRIZZLE THURSDAY MORNING. SNOWFALL AND SLEET WILL RANGE FROM AROUND AN INCH NEAR LAKE MICHIGAN AND FAR SOUTHERN WISCONSIN...TO BETWEEN 3 AND 4 INCHES IN NORTHERN PARTS OF SOUTH CENTRAL WISCONSIN. IN ADDITION...ICE ACCUMULATIONS UP TO ONE QUARTER INCH ARE POSSIBLE IN SOUTH CENTRAL WISCONSIN...WITH LESS THAN A QUARTER OF AN INCH OVER SOUTHEAST WISCONSIN. A WINTER STORM WARNING IS IN EFFECT FOR SOUTH CENTRAL WISCONSIN FOR THE MIX OF ACCUMULATING SNOW AND ICE...AND A WINTER WEATHER ADVISORY REMAINS IN EFFECT FOR ALL OF SOUTHEAST WISCONSIN THROUGH THURSDAY MORNING. HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED TO DEVELOP RAPIDLY OVER PORTIONS OF SOUTHERN WISCONSIN LATE THIS AFTERNOON AND TONIGHT. ALL INTERESTS WILL WANT TO STAY ABREAST OF THE LATEST FORECASTS...AND PLAN ON ALTERING YOUR PLANS TO STAY AHEAD OF THE DETERIORATING WEATHER. WIZ062-063-067>069-240600- /O.UPG.KMKX.WW.Y.0016.000000T0000Z-091224T1800Z/ /O.NEW.KMKX.WS.W.0006.091223T2157Z-091224T1800Z/ IOWA-DANE-LAFAYETTE-GREEN-ROCK- INCLUDING THE CITIES OF...DODGEVILLE...MADISON...DARLINGTON... MONROE...JANESVILLE...BELOIT 357 PM CST WED DEC 23 2009 ...WINTER STORM WARNING IN EFFECT UNTIL NOON CST THURSDAY... THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A WINTER STORM WARNING FOR A MIX OF SLEET AND ACCUMULATING SNOW...WHICH IS IN EFFECT UNTIL NOON CST THURSDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * PRECIPITATION HAS BEGUN AS A MIX OF...FREEZING RAIN...SLEET AND LIGHT SNOW MIX...WITH SOME ICE ACCUMULATIONS. IT WILL TRANSITION TO A SHORT PERIOD OF SNOW...WITH SLEET MIXED IN AT TIMES THIS EVENING...THEN BACK TO A MIX OF FREEZING RAIN...AND SLEET LATE TONIGHT INTO THURSDAY MORNING. THE MIXTURE IS EXPECTED TO CHANGE OVER TO RAIN AND DRIZZLE DURING THE MORNING ON THURSDAY. THE RAIN WILL CHANGE BACK OVER TO ALL SNOW FRIDAY MORNING AND AFTERNOON. * TOTAL SNOW AND SLEET ACCUMULATIONS EXPECTED INTO THURSDAY MORNING...1 TO 3 INCHES. * ICE ACCUMULATIONS UP TO 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 THROUGH THIS EVENING AND LAST INTO THURSDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS. && $$ WIZ056-057-240600- /O.UPG.KMKX.WW.Y.0016.091223T2200Z-091224T1800Z/ /O.NEW.KMKX.WS.W.0006.091223T2157Z-091224T1800Z/ SAUK-COLUMBIA- INCLUDING THE CITIES OF...BARABOO...PORTAGE...WISCONSIN DELLS 357 PM CST WED DEC 23 2009 ...WINTER STORM WARNING IN EFFECT UNTIL NOON CST THURSDAY... THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A WINTER STORM WARNING FOR A MIX OF SLEET...ACCUMULATING SNOW AND SOME FREEZING RAIN...WHICH IS IN EFFECT UNTIL NOON CST THURSDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * PRECIPITATION WILL BEGIN AS MAINLY LIGHT SNOW...WITH SOME FREEZING RAIN OR DRIZZLE AND SLEET MIXING IN. IT WILL TRANSITION TO A PERIOD OF MODERATE SNOW WITH SLEET MIXING IN AT TIMES THIS EVENING...THEN BACK TO A MIX OF FREEZING RAIN AND SLEET LATE TONIGHT INTO THURSDAY MORNING. THE MIXTURE IS EXPECTED TO CHANGE OVER TO MOSTLY RAIN AND DRIZZLE DURING THE MORNING ON THURSDAY. THE RAIN WILL CHANGE BACK OVER TO ALL SNOW ON FRIDAY. * TOTAL SNOW AND SLEET ACCUMULATIONS EXPECTED INTO THURSDAY MORNING...2 TO 4 INCHES. * ICE ACCUMULATIONS UP TO ONE QUARTER INCH ARE POSSIBLE INTO THURSDAY MORNING. * WINDS...BLUSTERY EAST WINDS OF 15 TO 25 MPH WITH GUSTS TO 30 MPH WILL CONTINUE INTO THURSDAY MORNING. * HAZARDOUS TRAVEL ASSOCIATED WITH SNOW AND ICE COVERED ROADS IS EXPECTED TO DEVELOP TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WIZ046-047-240600- /O.UPG.KMKX.WW.Y.0016.091223T2200Z-091224T1800Z/ /O.NEW.KMKX.WS.W.0006.091224T0000Z-091224T1800Z/ MARQUETTE-GREEN LAKE- INCLUDING THE CITIES OF...MONTELLO...BERLIN 357 PM CST WED DEC 23 2009 ...WINTER STORM WARNING IN EFFECT UNTIL NOON CST THURSDAY... THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A WINTER STORM WARNING FOR SNOW AND SLEET...WHICH IS IN EFFECT UNTIL NOON CST THURSDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * PRECIPITATION WILL BEGIN AS MAINLY LIGHT SNOW...THEN TO A PERIOD OF MODERATE SNOW WITH SLEET MIXING IN AT TIMES THIS EVENING. IT WILL TRANSITION TO A MIX OF FREEZING RAIN AND SLEET LATE TONIGHT INTO THURSDAY MORNING. THE MIXTURE IS EXPECTED TO CHANGE OVER TO MOSTLY RAIN AND DRIZZLE DURING THE MORNING ON THURSDAY...THEN CHANGE BACK OVER TO ALL SNOW ON FRIDAY. * TOTAL SNOW AND SLEET ACCUMULATIONS EXPECTED INTO THURSDAY MORNING...3 TO 4 INCHES. * ICE ACCUMULATIONS UP TO 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 STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WIZ058-065-066-240600- /O.CON.KMKX.WW.Y.0016.091223T2200Z-091224T1800Z/ DODGE-WAUKESHA-MILWAUKEE- INCLUDING THE CITIES OF...BEAVER DAM...WAUKESHA...BROOKFIELD... MILWAUKEE 357 PM CST WED DEC 23 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST THURSDAY. * PRECIPITATION WILL BEGIN AS MAINLY LIGHT FREEZING RAIN AND LIGHT SNOW...THEN TO A PERIOD OF SNOW WITH SLEET MIXING IN AT TIMES THIS EVENING. IT WILL TRANSITION TO A MIX OF FREEZING RAIN AND SLEET LATER TONIGHT INTO THURSDAY MORNING. THE MIXTURE IS EXPECTED TO CHANGE OVER TO MOSTLY RAIN AND DRIZZLE ON THURSDAY...THEN CHANGE BACK OVER TO ALL SNOW ON FRIDAY. * TOTAL SNOW AND SLEET ACCUMULATIONS EXPECTED INTO THURSDAY MORNING...1 TO 2 INCHES. * ICE ACCUMULATIONS LESS THAN ONE QUARTER INCH ARE POSSIBLE INTO THURSDAY MORNING. * WINDS...BLUSTERY EAST WINDS OF 15 TO 25 MPH WITH GUSTS TO 30 MPH WILL CONTINUE INTO THURSDAY MORNING. * HAZARDOUS TRAVEL ASSOCIATED WITH SNOW AND ICE COVERED ROADS IS EXPECTED TO DEVELOP TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WIZ064-070>072-240600- /O.CON.KMKX.WW.Y.0016.000000T0000Z-091224T1800Z/ JEFFERSON-WALWORTH-RACINE-KENOSHA- INCLUDING THE CITIES OF...JEFFERSON...LAKE MILLS...ELKHORN... LAKE GENEVA...RACINE...KENOSHA 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. * THE LIGHT FREEZING RAIN AND LIGHT SNOW MIX WILL TRANSITION TO A PERIOD OF SNOW WITH SLEET MIXED IN AT TIMES THIS EVENING. IT WILL BECOME A MIX OF FREEZING RAIN...AND SLEET LATER TONIGHT INTO THURSDAY MORNING. THE MIXTURE IS EXPECTED TO CHANGE OVER TO MOSTLY RAIN AND DRIZZLE THURSDAY MORNING. THE RAIN WILL CHANGE BACK OVER TO ALL SNOW FRIDAY MORNING. * TOTAL SNOW AND SLEET ACCUMULATIONS EXPECTED INTO THURSDAY MORNING...1 TO 3 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 THROUGH THIS EVENING. 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. && $$ WIZ051-052-059-060-240600- /O.CON.KMKX.WW.Y.0016.091224T0100Z-091224T1800Z/ FOND DU LAC-SHEBOYGAN-WASHINGTON-OZAUKEE- INCLUDING THE CITIES OF...FOND DU LAC...SHEBOYGAN...WEST BEND... PORT WASHINGTON 357 PM CST WED DEC 23 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO NOON CST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO NOON CST THURSDAY. * PRECIPITATION WILL BEGIN AS MAINLY SNOW BY THIS EVENING...THEN TRANSITION TO A MIX OF SLEET AND SNOW...WITH SOME FREEZING RAIN LATE TONIGHT. THE MIXTURE IS EXPECTED TO CHANGE OVER TO MOSTLY RAIN AND DRIZZLE BY THURSDAY AFTERNOON...THEN CHANGE BACK OVER TO ALL SNOW ON FRIDAY. * TOTAL SNOW AND SLEET ACCUMULATIONS EXPECTED INTO THURSDAY MORNING...AROUND 1 TO 3 INCHES. * ICE ACCUMULATIONS LESS THAN ONE QUARTER INCH ARE POSSIBLE INTO THURSDAY MORNING. * WINDS...BLUSTERY EAST WINDS OF 15 TO 25 MPH WITH GUSTS TO 30 MPH WILL CONTINUE INTO THURSDAY MORNING. * HAZARDOUS TRAVEL ASSOCIATED WITH SNOW AND ICE COVERED ROADS IS EXPECTED TO DEVELOP THROUGH THURSDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ REM
2 follow-up statements
000 WWUS43 KMKX 240306 WSWMKX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 906 PM CST WED DEC 23 2009 ...MIXTURE OF PRECIPITATION EXPECTED INTO THURSDAY MORNING... .A SURGE OF MOISTURE AHEAD OF A DEVELOPING LOW PRESSURE SYSTEM IN THE SOUTHERN PLAINS WILL CONTINUE TO PRODUCE A MIXTURE OF SNOW...SLEET AND FREEZING RAIN ACROSS SOUTHERN WISCONSIN INTO THURSDAY MORNING. FREEZING RAIN IN FAR SOUTHERN WISCONSIN WILL SHIFT NORTH TOWARD CENTRAL WISCONSIN BY SUNRISE THURSDAY. THE FREEZING RAIN WILL REPLACE SNOW AND SLEET WHICH WILL ACCUMULATE TO 2 TO 4 INCHES BEFORE THE CHANGE TO FREEZING RAIN. THE MIXTURE IS EXPECTED TO CHANGE TO MOSTLY RAIN AND DRIZZLE THURSDAY MORNING AS TEMPERATURES WARM ABOVE FREEZING. ICE ACCUMULATION UP TO ONE QUARTER INCH IS POSSIBLE AWAY FROM LAKE MICHIGAN. HAZARDOUS TRAVEL CONDITIONS WILL CONTINUE INTO THURSDAY MORNING OVER SOUTHERN WISCONSIN WITH IMPROVING CONDITIONS BY LATE THURSDAY MORNING OR AFTERNOON AS TEMPERATURES WARM ABOVE FREEZING. WIZ056-057-062-063-067>069-241115- /O.CON.KMKX.WS.W.0006.000000T0000Z-091224T1800Z/ SAUK-COLUMBIA-IOWA-DANE-LAFAYETTE-GREEN-ROCK- INCLUDING THE CITIES OF...BARABOO...PORTAGE...WISCONSIN DELLS... DODGEVILLE...MADISON...DARLINGTON...MONROE...JANESVILLE...BELOIT 906 PM CST WED DEC 23 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST THURSDAY. * PRECIPITATION HAS BEGUN AS A MIX OF...FREEZING RAIN...SLEET AND SNOW AND WILL TRANSITION TO FREEZING RAIN THROUGHOUT THE NIGHT. THE MIXTURE IS EXPECTED TO CHANGE OVER TO RAIN AND DRIZZLE DURING THE MORNING ON THURSDAY. * TOTAL SNOW AND SLEET ACCUMULATIONS EXPECTED INTO THURSDAY MORNING...2 TO 4 INCHES. * ICE ACCUMULATIONS UP TO 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 OCCURRING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS. && $$ WIZ046-047-241115- /O.CON.KMKX.WS.W.0006.000000T0000Z-091224T1800Z/ MARQUETTE-GREEN LAKE- INCLUDING THE CITIES OF...MONTELLO...BERLIN 906 PM CST WED DEC 23 2009 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST THURSDAY. * PRECIPITATION WILL BE SNOW THIS EVENING AND TRANSITION TO MORE SLEET AND FREEZING RAIN DURING THE OVERNIGHT. THE MIXTURE IS EXPECTED TO CHANGE OVER TO MOSTLY RAIN AND DRIZZLE DURING THE MORNING ON THURSDAY. * TOTAL SNOW AND SLEET ACCUMULATIONS EXPECTED INTO THURSDAY MORNING...3 TO 4 INCHES. * ICE ACCUMULATIONS UP TO ONE QUARTER INCH ARE POSSIBLE INTO THURSDAY MORNING. * WINDS...BLUSTERY EAST WINDS OF 15 TO 25 MPH WITH GUSTS TO 30 MPH WILL CONTINUE INTO THURSDAY MORNING. * HAZARDOUS TRAVEL ASSOCIATED WITH SNOW AND ICE COVERED ROADS IS OCCURRING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW... SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WIZ051-052-058>060-064>066-070>072-241115- /O.CON.KMKX.WW.Y.0016.000000T0000Z-091224T1800Z/ FOND DU LAC-SHEBOYGAN-DODGE-WASHINGTON-OZAUKEE-JEFFERSON-WAUKESHA- MILWAUKEE-WALWORTH-RACINE-KENOSHA- INCLUDING THE CITIES OF...FOND DU LAC...SHEBOYGAN...BEAVER DAM... WEST BEND...PORT WASHINGTON...JEFFERSON...LAKE MILLS...WAUKESHA... BROOKFIELD...MILWAUKEE...ELKHORN...LAKE GENEVA...RACINE...KENOSHA 906 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 OF SNOW AND SLEET WILL TRANSITION TO FREEZING RAIN AND SLEET THROUGHOUT THE NIGHT. TEMPERATURES MAY WARM ENOUGH NEAR THE LAKE FROM PORT WASHINGTON SOUTH TO THE ILLINOIS BORDER FOR ALL RAIN DURING THE OVERNIGHT. THE MIXTURE IS EXPECTED TO CHANGE OVER TO MOSTLY RAIN AND DRIZZLE ON THURSDAY. * TOTAL SNOW AND SLEET ACCUMULATIONS EXPECTED INTO THURSDAY MORNING...2 TO 4 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 OCCURRING. 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. && $$ GEHRING
000 WWUS43 KMKX 240937 WSWMKX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 337 AM CST THU DEC 24 2009 ...AREAS OF FREEZING RAIN PERSISTING THIS MORNING... .FREEZING RAIN POSSIBLY MIXED WITH SLEET...IS EXPECTED TO PERSIST THIS MORNING ACROSS SOUTH CENTRAL AND SOUTHEAST WISCONSIN. TEMPERATURES WILL REMAIN RIGHT AROUND FREEZING...RESULTING IN ADDITIONAL LIGHT ICE ACCUMULATION...LESS THAN ONE TENTH OF AN INCH. TEMPERATURES WILL SLOWLY WARM TO ABOVE FREEZING MOST AREAS BY AFTERNOON. MOST ROADWAYS ACROSS SOUTH CENTRAL AND SOUTHEAST WISCONSIN ARE SNOW OR ICE COVERED AND HAZARDOUS EARLY THIS MORNING. A WINTER WEATHER ADVISORY IS IN EFFECT THIS MORNING. WIDESPREAD RAIN IS EXPECTED TO DEVELOP LATER THIS AFTERNOON AND CONTINUE TONIGHT. TEMPERATURES DURING THE RAIN ARE EXPECTED TO REMAIN AT OR ABOVE FREEZING...WHICH WILL REDUCE THE POTENTIAL FOR ADDITIONAL FREEZING RAIN AND ICING. WIZ046-047-056-057-062-063-067>069-241745- /O.CAN.KMKX.WS.W.0006.000000T0000Z-091224T1800Z/ /O.EXA.KMKX.WW.Y.0016.000000T0000Z-091224T1800Z/ MARQUETTE-GREEN LAKE-SAUK-COLUMBIA-IOWA-DANE-LAFAYETTE-GREEN-ROCK- INCLUDING THE CITIES OF...MONTELLO...BERLIN...BARABOO...PORTAGE... WISCONSIN DELLS...DODGEVILLE...MADISON...DARLINGTON...MONROE... JANESVILLE...BELOIT 337 AM CST THU DEC 24 2009 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON CST TODAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A WINTER WEATHER ADVISORY FOR FREEZING RAIN AND SLEET...WHICH IS IN EFFECT UNTIL NOON CST TODAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. * PERIODS OF FREEZING RAIN...POSSIBLY MIXED WITH SLEET WILL SLOWLY TRANSITION TO MAINLY RAIN LATER TODAY AS SLIGHTLY WARMER AIR BEGINS TO PUSH INTO SOUTHERN WISCONSIN. * LITTLE ADDITIONAL ACCUMULATION FROM ANY LINGERING SNOW OR SLEET. * ICE ACCUMULATIONS LESS THAN ONE TENTH INCH. * WINDS...BLUSTERY EAST WINDS OF 15 TO 25 MPH WITH GUSTS TO 30 MPH. * HAZARDOUS TRAVEL ASSOCIATED WITH SNOW AND ICE COVERED ROADS WILL CONTINUE. 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. && $$ WIZ051-052-058>060-064>066-070>072-241745- /O.CON.KMKX.WW.Y.0016.000000T0000Z-091224T1800Z/ FOND DU LAC-SHEBOYGAN-DODGE-WASHINGTON-OZAUKEE-JEFFERSON-WAUKESHA- MILWAUKEE-WALWORTH-RACINE-KENOSHA- INCLUDING THE CITIES OF...FOND DU LAC...SHEBOYGAN...BEAVER DAM... WEST BEND...PORT WASHINGTON...JEFFERSON...LAKE MILLS...WAUKESHA... BROOKFIELD...MILWAUKEE...ELKHORN...LAKE GENEVA...RACINE...KENOSHA 337 AM CST THU DEC 24 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY. * PERIODS OF FREEZING RAIN...POSSIBLY MIXED WITH SLEET WILL SLOWLY TRANSITION TO MAINLY RAIN LATER TODAY AS SLIGHTLY WARMER AIR BEGINS TO PUSH INTO SOUTHERN WISCONSIN. * LITTLE ADDITIONAL ACCUMULATION FROM ANY LINGERING SNOW OR SLEET. * ICE ACCUMULATIONS LESS THAN ONE TENTH INCH. * WINDS...BLUSTERY EAST WINDS OF 15 TO 25 MPH WITH GUSTS TO 30 MPH. * HAZARDOUS TRAVEL ASSOCIATED WITH SNOW AND ICE COVERED ROADS WILL CONTINUE. 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. && $$ MBK/PC
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Milwaukee, WI wrote its last area forecast discussion before this winter storm warning went out at Dec 23, 3:31 AM CST, 12 hours 26 minutes earlier.
Area forecast discussion, Dec 23, 3:31 AM CST, 12 hours 26 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
331 AM CST WED DEC 23 2009
.DISCUSSION...FORECAST FOCUS ON PRECIP TYPES/AMOUNTS ASSOCIATED WITH
APPROACHING STORM SYSTEM AND WHAT TO DO WITH HEADLINES. WINDOW OF
FREEZING RAIN POTENTIAL THE MAIN CONCERN TONIGHT INTO THURSDAY
MORNING.
TODAY AND TONIGHT- CONFIDENCE...LOW
STRONG STORM SYSTEM CLEARLY SEEN ON WATER VAPOR IN ARIZONA AND
NEW MEXICO. HIGH PRESSURE TO THE NORTHEAST PROVIDING AN EASTERLY
DRY COMPONENT. WITH CYCLOGENESIS REALLY GETTING GOING TODAY...850
LOW LEVEL JET INCREASES TOWARDS THE WESTERN CWA AND PRECIP IN THE
FORM OF SNOW DEVELOPS. NAM SUGGESTING MORE FREEZING RAIN/ICE
PELLET POTENTIAL RIGHT AT THE OUTSET...WILL HINT AT THIS. THOUGH
GFS MAY BE RIGHT WITH MORE EVAP COOLING WITH DRY EASTERLY FLOW HAVING
A SAY ON THE SOUNDINGS AT LEAST EARLY ON. 700 OMEGA ALSO SPIKES
UP. BUFKIT SOUNDINGS/THICKNESS AND ENERGY CONSIDERATIONS SHOW
MAINLY SNOW THROUGH 6Z...THEN THE ELEVATED WARM LAYER APPEARS AND
THE MODEL DIFFERENCES APPEAR AT THAT POINT. GFS SHOWS VERY LITTLE
IN THE WAY OF WARM LAYER WHILE THE NAM HAS AROUND 2C DURING MAX
QPF BUT DOESN/T GET TO 3C UNTIL 10 OR 11Z WHEN BULK OF PRECIP HAS
TRAILED OFF. MUCH OF THE QPF WILL BE CONTRIBUTING TO SNOW
PRODUCTION...AND NOT ENOUGH ICE PRODUCTION TO REACH WARNING
CRITERIA. MODEL CONSENSUS IS TO HAVE AROUND 0.30 INCH LIQUID
BETWEEN 0-6Z WITH INDICATIONS THAT WILL FALL AS SNOW WITH FAIRLY
LOW RATIOS. QPF MIN EVOLVES AFTER 6Z...AND WITH A SOUNDING THAT
SHOWS MORE OF A MIX OF PRECIP TYPES RATHER THAN PURE FREEZING
RAIN. CANT SIT ON A WATCH AT THIS POINT. FEEL MORE EVIDENCE
POINTING TOWARDS HIGH END ADVISORY THAN LOW END WARNING SO WILL GO
IN THAT DIRECTION.
CHRISTMAS EVE- CONFIDENCE...MEDIUM
NEXT SURGE ARRIVES WITH STRENGTHENING LOW LEVEL JET. BOUNDARY LAYER
TEMPS WILL SLOWLY MODIFY...THOUGH LINGERING PRECIP IN THE NORTHERN
CWA MAY STILL YET POSE SOME ICE CONCERN. MAIN ISSUE WILL BE IN THE
MORNING WITH LINGERING TEMPS NEAR 32...ESPECIALLY INLAND AWAY FROM
THE LAKE AND MUCH OF THE WESTERN AND NORTHERN CWA. THE NAM IS MUCH
WARMER WITH THE 850 THERMAL RIDGE. INTERESTING AND ODD LOOKING JET
COUPLING EVOLVES WITH INCREASING WITH MUCH OF THE FORCING WITH LOW
LEVEL FRONTOGENETICAL FORCING/MOISTURE ADVECTION. DECENT SURGE OF
DIFFERENTIAL CYCLONIC VORTICITY ADVECTION THURSDAY NIGHT BEFORE
SYSTEM CLOSES OFF AND GOES INTO PLOD MODE.
CHRISTMAS- CONFIDENCE...MEDIUM
WITH 850 THERMAL RIDGE ACROSS THE CWA TO START OFF THE DAY WILL GO
WITH MORNING HIGHS. 850 MILLIBAR COLD AIR ADVECTION WRAPS IN FROM
THE SOUTHWEST. THE RAIN CHANGING TO SNOW IDEA STILL LOOKS GOOD.
SATURDAY AND SUNDAY- CONFIDENCE...MEDIUM
UPPER LOW WILL BE SLOWLY PLODDING AROUND THE AREA WITH OCCASIONAL
SNOW SHOWERS A GOOD BET. 850 TEMPS RATHER CHILLY IN THE MINUS TEENS.
&&
.AVIATION...WEAK ISENTROPIC LIFT MAY PRODUCE PATCHY FLURRIES OR
FREEZING DRIZZLE THIS MRNG. OTHRW...EXPECT MOSTLY MVFR CIGS TO
CONTINUE TODAY...HOWEVER DRY MID LEVELS AND STRONG MIXING WL LIKELY
RESULT IN SEVERAL PERIODS OF VFR CIGS...ESPECIALLY IN THE EAST.
SURGE OF MOISTURE TNGT TIED TO SHORT WAVE FORCING WL RESULT IN MIX
OF SNOW...SLEET AND FREEZING RAIN TONIGHT...WITH LOWEST VSBYS IN
PRECIP AT KMSN. CIGS WL RETURN TO MVFR AND LWR.
&&
.MARINE...PRESSURE GRADIENT OVER SOUTHERN LAKE MICHIGAN WILL ONLY
FURTHER TIGHTEN THROUGH THU NIGHT BEFORE GRADUALLY WEAKENING IN
RESPONSE TO SLOWLY WEAKENING LOW PRESSURE THAT WILL BE AFFECTING THE
REGION THROUGH THE HOLIDAY WEEKEND. STEEP LOW LEVEL LAPSE RATES AND
STRONG WINDS JUST OFF THE SURFACE ARE EXPECTED TO REACH GALE
CRITERIA THU AFTN INTO FRI MRNG WHEN PRES GRADIENT WILL BE THE
TIGHTEST. HENCE SMALL CRAFT ADVISORY RAMPS UP TO GALE WARNING ON
THU.
&&
.MKX WATCHES/WARNINGS/ADVISORIES...
WI...WINTER WEATHER ADVISORY FROM 4 PM THIS AFTERNOON TO NOON CST
THURSDAY FOR WIZ062-067-068.
WINTER WEATHER ADVISORY FROM 6 PM THIS EVENING TO NOON CST
THURSDAY FOR WIZ046-047-056>058-063>066-069>072.
WINTER WEATHER ADVISORY FROM 9 PM THIS EVENING TO NOON CST
THURSDAY FOR WIZ051-052-059-060.
LM...SMALL CRAFT ADVISORY UNTIL NOON CST THURSDAY FOR LMZ643>646.
GALE WARNING FROM NOON THURSDAY TO NOON CST FRIDAY FOR
LMZ643>646.
&&
SHORT/LONG TERM...PC
AVIATION/MARINE...MBKHazardous weather outlook, Dec 23, 12:42 PM CST, 3 hours 15 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 1242 PM CST WED DEC 23 2009 WIZ046-047-051-052-056>060-062>072-241045- MARQUETTE-GREEN LAKE-FOND DU LAC-SHEBOYGAN-SAUK-COLUMBIA-DODGE- WASHINGTON-OZAUKEE-IOWA-DANE-JEFFERSON-WAUKESHA-MILWAUKEE- LAFAYETTE-GREEN-ROCK-WALWORTH-RACINE-KENOSHA- 1242 PM CST WED DEC 23 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL WISCONSIN...SOUTH CENTRAL WISCONSIN AND SOUTHEAST WISCONSIN. .DAY ONE...TODAY AND TONIGHT LIGHT FREEZING RAIN IS EXPECTED THIS AFTERNOON...MAINLY ALONG AND SOUTH OF A LINE FROM THE WISCONSIN DELLS...TO WATERTOWN...TO MILWAUKEE. LIGHT SNOW MAY MIX IN BY MID AFTERNOON. A SURGE OF MOISTURE ALONG WITH AN UPPER LEVEL DISTURBANCE SPAWNED BY A DEVELOPING LARGE AREA OF LOW PRESSURE IN THE SOUTHERN PLAINS WILL BRING A MIXTURE OF SNOW...SLEET AND FREEZING RAIN TO SOUTHERN WISCONSIN LATE THIS AFTERNOON AND TONIGHT. A WINTER WEATHER ADVISORY HAS BEEN POSTED FOR THIS PERIOD. FOR MORE DETAILED INFORMATION...SEE THE LATEST WINTER WEATHER MESSAGE. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THE WINTER WEATHER ADVISORY WILL REMAIN IN EFFECT THURSDAY MORNING...DUE TO THE LIKELIHOOD OF A LINGERING MIXTURE OF LIGHT FREEZING RAIN AND SLEET. 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 NIGHT. RAINFALL OF THREE QUARTERS OF AN INCH...TO ONE AND ONE QUARTER INCH...IS 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 LATE THURSDAY NIGHT OR 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 UPCOMING 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. LMZ643>646-241045- SHEBOYGAN TO PORT WASHINGTON WI- PORT WASHINGTON TO NORTH POINT LIGHT WI- NORTH POINT LIGHT TO WIND POINT WI- WIND POINT WI TO WINTHROP HARBOR IL- 1242 PM CST WED DEC 23 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT A SMALL CRAFT ADVISORY REMAINS IN EFFECT...AS EAST WINDS INCREASE TO UP TO 30 KNOTS...AND WAVES BUILD TO 8 TO 10 FEET. THE BLUSTERY WINDS ARE DUE TO DEVELOPING LOW PRESSURE IN THE SOUTHERN PLAINS...AND THE RESULTANT TIGHTENING PRESSURE GRADIENT OVER LAKE MICHIGAN. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THE PRESSURE GRADIENT WILL CONTINUE TO STRENGTHEN ON THURSDAY...AS DEEP LOW PRESSURE PUSHES SLOWLY NORTHWARD INTO IOWA. WIND SPEEDS WILL INCREASE TO GALE WARNING CRITERIA LATER THURSDAY...AND LINGER INTO FRIDAY MORNING. THE SMALL CRAFT ADVISORY TRANSITIONS TO A GALE WARNING LATER THURSDAY...AND CONTINUES INTO FRIDAY MORNING. WINDS AND WAVES WILL CONTINUE AT SMALL CRAFT ADVISORY LEVELS INTO SATURDAY. WOOD WWW.WEATHER.GOV/MKX
In the hours before
Local storm report, Dec 23, 12:12 PM CST, 3 hours 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1212 PM CST WED DEC 23 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1159 AM FREEZING RAIN 5 ESE LAKE GENEVA 42.56N 88.34W
12/23/2009 E0.00 INCH WALWORTH WI LAW ENFORCEMENT
LAW ENFORCEMENT REPORTS LIGHT FREEZING RAIN AND DRIZZLE
NEAR GENOA CITY AND BLOOMFIELD TOWNSHIP.
&&
RSCHAARSpecial weather statement, Dec 23, 12:16 PM CST, 3 hours 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 1216 PM CST WED DEC 23 2009 WIZ056-057-062>072-232045- SAUK-COLUMBIA-IOWA-DANE-JEFFERSON-WAUKESHA-MILWAUKEE-LAFAYETTE- GREEN-ROCK-WALWORTH-RACINE-KENOSHA- INCLUDING THE CITIES OF...BARABOO...PORTAGE...WISCONSIN DELLS... DODGEVILLE...MADISON...JEFFERSON...LAKE MILLS...WAUKESHA... BROOKFIELD...MILWAUKEE...DARLINGTON...MONROE...JANESVILLE... BELOIT...ELKHORN...LAKE GENEVA...RACINE...KENOSHA 1216 PM CST WED DEC 23 2009 ...TRAVEL TO BECOME INCREASINGLY HAZARDOUS THIS AFTERNOON... AT NOON THE LEADING EDGE OF AN AREA OF PRECIPITATION WAS BEGINNING TO MOVE INTO SOUTHERN WISCONSIN FROM NORTHERN ILLINOIS. THIS PRECIPITATION WILL BEGIN TO FALL IN THE FORM OF FREEZING RAIN EARLY THIS AFTERNOON. ROADS WILL BECOME ICE COVERED AND HAZARDOUS...ESPECIALLY SECONDARY ROADS AND COUNTY HIGHWAYS. USE EXTRA CAUTION IF DRIVING THIS AFTERNOON AND REDUCE YOUR SPEED TO ACCOUNT FOR CONDITIONS. LATER IN THE AFTERNOON AND INTO THE EVENING...PRECIPITATION SHOULD CHANGE OVER TO SNOW. PRESENT INDICATIONS ARE THAT THE SNOW MAY COME IN A QUICK BURST...WITH SNOWFALL RATES APPROACHING 1 INCH PER HOUR. THE PRECIPITATION WILL THEN CHANGE BACK TO FREEZING RAIN OR SLEET LATER TONIGHT. THE HIGHER SNOWFALL RATES...PRECEDING ICY CONDITIONS...AND TIME OF THE DAY WILL COMBINE TO MAKE TRAVEL HAZARDOUS THIS EVENING. ALLOW EXTRA TIME TO REACH YOUR DESTINATION. LAMERS
Local storm report, Dec 23, 1:15 PM CST, 2 hours 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
115 PM CST WED DEC 23 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0110 PM FREEZING RAIN MONROE 42.60N 89.64W
12/23/2009 U0.00 INCH GREEN WI LAW ENFORCEMENT
FREEZING RAIN ACCUMULATING...NUMEROUS ACCIDENTS AND CAR
RUNOFFS
0110 PM FREEZING RAIN 2 SE STOUGHTON 42.90N 89.19W
12/23/2009 U0.00 INCH DANE WI LAW ENFORCEMENT
0110 PM FREEZING RAIN MOUNT HOREB 43.01N 89.73W
12/23/2009 U0.00 INCH DANE WI LAW ENFORCEMENT
&&
RSCHAARThe office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 23, 3:54 AM CST | Winter Weather Advisory | MKX | Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 14 more | 32 hr |
| Dec 23, 4:00 AM CST | Gale Warning | MKX | 59 hr |
Nearby
Winter Storm Warnings in Wisconsin, 2009Every winter storm warning in 2009
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.