Alert archive / Wisconsin / Winter Storm Warnings in 2009

Winter Storm Warning 4, NWS La Crosse, WI

March 8, 20094 counties in Iowa; 10 counties in Wisconsin; Fillmore County, Houston County, Winona County, Minnesota

NWS La Crosse, WI issued this winter storm warning at Mar 8, 2009, 12:11 PM CDT for 4 counties in Iowa; 10 counties in Wisconsin; Fillmore County, Houston County, Winona County, Minnesota. It was in force for 7 hr. 50 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
Mar 8, 2009, 12:11 PM CDT (17:11 UTC)
Expired
Mar 8, 2009, 7:00 PM CDT
In force
7 hr
Issued by
NWS La Crosse, WI

Counties Allamakee County, IA, Chickasaw County, IA, Howard County, IA, Winneshiek County, IA, Fillmore County, MN, Houston County, MN, Winona County, MN, Adams County, WI, Buffalo County, WI, Crawford County, WI, Jackson County, WI, Juneau County, WI, La Crosse County, WI, Monroe County, WI, Richland County, WI, Trempealeau County, WI, Vernon County, WI

The radar

The La Crosse radar (KARX), 12 km from the middle of the area, began a volume at 17:12 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

TimeReportWhereRemark
Mar 8, 12:45 PM CDTFREEZING RAIN 0.132 N La Crescent, MNONE EIGHTH OF AN INCH OF ICE
Mar 8, 1:10 PM CDTICE STORM 03 Ene Westby, WIQUARTER INCH OF ICE
Mar 8, 1:11 PM CDTFREEZING RAIN 0.14 Se Lansing, IATENTH OF AN INCH OF ICE
Mar 8, 2:00 PM CDTICE STORM 03 E La Crosse, WITHREE TENTHS OF AN INCH OF ICE COATING ON OBJECTS
Mar 8, 2:00 PM CDTSLEET 0.23 E Spring Valley, MN
Mar 8, 2:00 PM CDTHEAVY SNOW 3.8Winona, MN
Mar 8, 2:30 PM CDTFREEZING RAIN 0.13 N St. Charles, MN
Mar 8, 2:30 PM CDTFREEZING RAIN 0.1Preston, MN
Mar 8, 2:30 PM CDTFREEZING RAIN 0.22 N La Crescent, MNA HALF INCH OF SLEET AND SNOW IS ON TOP OF THE ICE COATING
Mar 8, 2:31 PM CDTSNOW 3.8Winona, MN
Mar 8, 3:30 PM CDTFREEZING RAIN 0.1Ossian, IA
Mar 8, 3:51 PM CDTSNOW 1.5De Soto, WI
Mar 8, 3:52 PM CDTSNOW 0.3Viroqua, WI
Mar 8, 3:55 PM CDTSNOW 1.3Goodview, MN
Mar 8, 3:55 PM CDTSNOW 1.3Holmen 2s, WI
Mar 8, 3:56 PM CDTSNOW 0.5Decorah 8ene, IA
Mar 8, 4:06 PM CDTSNOW 3.5Friendship, WI
Mar 8, 4:25 PM CDTICE STORM4 E La Crosse, WIA COUPLE OF LARGE BRANCHES WERE BROUGHT DOWN DUE TO ICE
Mar 8, 4:30 PM CDTICE STORM2 S Barre Mills, WIA COUPLE OF SMALL TREES AND LARGE BRANCHES WERE BROUGHT DOWN BY ICE IN GARBERS COULEE.
Mar 8, 4:45 PM CDTFREEZING RAIN 0.13 Ne Stoddard, WI
Mar 8, 4:50 PM CDTSNOW 2Arcadia, WI
Mar 8, 4:52 PM CDTSNOW 1.1Stoddard 2ne, WI
Mar 8, 5:00 PM CDTFREEZING RAIN 0.12 Ne Stoddard, WI
Mar 8, 5:00 PM CDTFREEZING RAIN 0.381 Nw Valley, WI
Mar 8, 5:00 PM CDTFREEZING RAIN 0.51 Nw Valley, WI
Mar 8, 5:00 PM CDTSNOW 2.5Valley 1nw, WI
Mar 8, 5:26 PM CDTSNOW 1La Crosse Nws, WI
Mar 8, 5:30 PM CDTFREEZING RAIN 0.13 Sw Reno, MN
Mar 8, 5:30 PM CDTFREEZING RAIN 0.1Sparta, WI
Mar 8, 5:38 PM CDTSNOW 0.8La Crosse, WI
Mar 8, 5:43 PM CDTFREEZING RAIN 0.2West Salem, WI
Mar 8, 5:46 PM CDTSNOW 1Reno 3sw, MN
Mar 8, 6:00 PM CDTFREEZING RAIN 0.1Viroqua, WI
Mar 8, 6:00 PM CDTFREEZING RAIN 0.15Mount Sterling, WI
Mar 8, 6:00 PM CDTFREEZING RAIN 0.257 S Mauston, WI
Mar 8, 6:24 PM CDTSNOW 1.8Westby 3ene, WI
Mar 8, 6:28 PM CDTSNOW 5.5Arkdale, WI
Mar 8, 6:30 PM CDTFREEZING RAIN 0.52 S Ithaca, WI
Mar 8, 6:31 PM CDTSNOW 0.5New Hampton, IA
Mar 8, 6:33 PM CDTSNOW 0.8Decorah, IA
Mar 8, 6:35 PM CDTSNOW 0.5Ossian, IA
Mar 8, 6:37 PM CDTSNOW 0.5Waukon, IA
Mar 8, 6:38 PM CDTSNOW 0.3Dorchester, IA
Mar 8, 6:39 PM CDTSNOW 1Independence 3ne, WI
Mar 8, 6:40 PM CDTICE STORM3 S Excelsior, WIPOWER KNOCKED OUT DUE TO ICED TREES FALLING ON POWER-LINES ALONG HWY 60.
Mar 8, 6:40 PM CDTSNOW 3.5Tomah, WI
Mar 8, 6:50 PM CDTICE STORM3 E Hub City, WIPOWER OUTAGE DUE TO ICED TREES FALLING ON POWER LINES ALONG SCOTT HILL RD.
Mar 8, 6:50 PM CDTSNOW 1.5St Charles 3n, MN
Mar 8, 6:58 PM CDTSNOW 0.4Spring Valley 3e, MN
Mar 8, 6:59 PM CDTSNOW 0.7Winona 4sw, MN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 5.2 hours before the alert went out and 226 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.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2009-03-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2009-03-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1189 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
65 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS43 KARX 081711
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
1211 PM CDT SUN MAR 8 2009

...A LIGHT WINTRY MIX EXPECTED TO CONTINUE THIS MORNING...

.A LOW PRESSURE SYSTEM...OVER WEST CENTRAL ILLINOIS EARLY THIS
AFTERNOON...WILL CONTINUE TO BRING GULF OF MEXICO MOISTURE
NORTHWARD INTO THE REGION. A MIXTURE OF FREEZING RAIN...SLEET...
AND SNOW WILL CONTINUE TO FALL ACROSS THE AREA THIS AFTERNOON. 
THE ICE ACCUMULATIONS WILL APPROACH A QUARTER INCH EAST OF A LINE
FROM MONDOVI WISCONSIN TO NEW HAMPTON IOWA. DUE TO THIS THE
WINTER WEATHER ADVISORY FOR THESE AREAS WAS UPGRADED TO A WINTER
STORM WARNING. WEST OF THE AFOREMENTIONED LINE...TOTAL ICE
ACCUMULATIONS WILL RANGE FROM A TENTH TO TWO TENTHS OF AN INCH.
IN ADDITION TO THE ICE ACCUMULATIONS...THE AREA MAY RECEIVE
ANYWHERE FROM 1 TO 3 INCHES. TRAVEL WILL CONTINUE TO BE
DIFFICULT TO TREACHEROUS THIS AFTERNOON.

IAZ009>011-019-MNZ088-095-096-WIZ032>034-041>044-053>055-090000-
/O.UPG.KARX.WW.Y.0008.000000T0000Z-090309T0000Z/
/O.NEW.KARX.WS.W.0004.090308T1711Z-090309T0000Z/
HOWARD-WINNESHIEK-ALLAMAKEE-CHICKASAW-WINONA-FILLMORE-HOUSTON-
BUFFALO-TREMPEALEAU-JACKSON-LA CROSSE-MONROE-JUNEAU-ADAMS-VERNON-
CRAWFORD-RICHLAND-
INCLUDING THE CITIES OF...DECORAH...WAUKON...WINONA...
BLACK RIVER FALLS...LA CROSSE...SPARTA/TOMAH...MAUSTON...
VIROQUA...PRAIRIE DU CHIEN...RICHLAND CENTER
1211 PM CDT SUN MAR 8 2009

...WINTER STORM WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A WINTER
STORM WARNING FOR A MIXTURE OF FREEZING RAIN...SLEET...AND SNOW...
WHICH IS IN EFFECT UNTIL 7 PM CDT THIS EVENING. THE WINTER WEATHER
ADVISORY IS NO LONGER IN EFFECT.

A MIXTURE OF FREEZING RAIN...SLEET...AND SNOW WILL CONTINUE
THROUGH THE REMAINDER OF THIS AFTERNOON. TOTAL ICE ACCUMULATIONS
WILL APPROACH A QUARTER OF AN INCH. THIS WILL BE ESPECIALLY THE
CASE ON THE RIDGE TOPS AND HIGHER ELEVATIONS. IN ADDITION TO THE
ICE ACCUMULATIONS...THE AREA MAY STILL RECEIVE ANYWHERE FROM 1 TO
3 INCHES OF SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A MIXTURE OF SNOW...SLEET...AND FREEZING RAIN IS OCCURRING. THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE THIS AFTERNOON.

&&

$$

IAZ008-018-MNZ079-086-087-094-WIZ029-090000-
/O.CON.KARX.WW.Y.0008.000000T0000Z-090309T0000Z/
MITCHELL-FLOYD-WABASHA-DODGE-OLMSTED-MOWER-CLARK-
INCLUDING THE CITIES OF...CHARLES CITY...ROCHESTER...AUSTIN...
NEILLSVILLE
1211 PM CDT SUN MAR 8 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING. 

A MIXTURE OF FREEZING RAIN...SLEET...AND SNOW WILL CONTINUE TO FALL
ACROSS THE AREA THIS AFTERNOON. ADDITIONAL ICE ACCUMULATIONS WILL
RANGE FROM A TENTH TO TWO TENTHS OF AN INCH. IN ADDITION TO THE ICE...
THE AREA MAY STILL RECEIVE 1 TO 3 INCHES OF SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...
AND FREEZING RAIN WILL CAUSE SOME TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

BOYNE

WEATHER.GOV/LACROSSE
8 follow-up statements
000 
WWUS43 KARX 081714 CCA
WSWARX

URGENT - WINTER WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE LA CROSSE WI
1213 PM CDT SUN MAR 8 2009

...A WINTRY MIX OF PRECIPITATION WILL CONTINUE THIS AFTERNOON...

.A LOW PRESSURE SYSTEM...OVER WEST CENTRAL ILLINOIS EARLY THIS
AFTERNOON...WILL CONTINUE TO BRING GULF OF MEXICO MOISTURE
NORTHWARD INTO THE REGION. A MIXTURE OF FREEZING RAIN...SLEET...
AND SNOW WILL CONTINUE TO FALL ACROSS THE AREA THIS AFTERNOON. 
THE ICE ACCUMULATIONS WILL APPROACH A QUARTER INCH EAST OF A LINE
FROM MONDOVI WISCONSIN TO NEW HAMPTON IOWA. DUE TO THIS THE
WINTER WEATHER ADVISORY FOR THESE AREAS WAS UPGRADED TO A WINTER
STORM WARNING. WEST OF THE AFOREMENTIONED LINE...TOTAL ICE
ACCUMULATIONS WILL RANGE FROM A TENTH TO TWO TENTHS OF AN INCH.
IN ADDITION TO THE ICE ACCUMULATIONS...THE AREA MAY RECEIVE
ANYWHERE FROM 1 TO 3 INCHES. TRAVEL WILL CONTINUE TO BE
DIFFICULT TO TREACHEROUS THIS AFTERNOON.

IAZ009>011-019-MNZ088-095-096-WIZ032>034-041>044-053>055-090000-
/O.UPG.KARX.WW.Y.0008.000000T0000Z-090309T0000Z/
/O.NEW.KARX.WS.W.0004.090308T1713Z-090309T0000Z/
HOWARD-WINNESHIEK-ALLAMAKEE-CHICKASAW-WINONA-FILLMORE-HOUSTON-
BUFFALO-TREMPEALEAU-JACKSON-LA CROSSE-MONROE-JUNEAU-ADAMS-VERNON-
CRAWFORD-RICHLAND-
INCLUDING THE CITIES OF...DECORAH...WAUKON...WINONA...
BLACK RIVER FALLS...LA CROSSE...SPARTA/TOMAH...MAUSTON...
VIROQUA...PRAIRIE DU CHIEN...RICHLAND CENTER
1213 PM CDT SUN MAR 8 2009

...WINTER STORM WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A WINTER
STORM WARNING FOR A MIXTURE OF FREEZING RAIN...SLEET...AND SNOW...
WHICH IS IN EFFECT UNTIL 7 PM CDT THIS EVENING. THE WINTER WEATHER
ADVISORY IS NO LONGER IN EFFECT.

A MIXTURE OF FREEZING RAIN...SLEET...AND SNOW WILL CONTINUE
THROUGH THE REMAINDER OF THIS AFTERNOON. TOTAL ICE ACCUMULATIONS
WILL APPROACH A QUARTER OF AN INCH. THIS WILL BE ESPECIALLY THE
CASE ON THE RIDGE TOPS AND HIGHER ELEVATIONS. IN ADDITION TO THE
ICE ACCUMULATIONS...THE AREA MAY STILL RECEIVE ANYWHERE FROM 1 TO
3 INCHES OF SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A MIXTURE OF SNOW...SLEET...AND FREEZING RAIN IS OCCURRING. THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE THIS AFTERNOON.

&&

$$

IAZ008-018-MNZ079-086-087-094-WIZ029-090000-
/O.CON.KARX.WW.Y.0008.000000T0000Z-090309T0000Z/
MITCHELL-FLOYD-WABASHA-DODGE-OLMSTED-MOWER-CLARK-
INCLUDING THE CITIES OF...CHARLES CITY...ROCHESTER...AUSTIN...
NEILLSVILLE
1213 PM CDT SUN MAR 8 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING. 

A MIXTURE OF FREEZING RAIN...SLEET...AND SNOW WILL CONTINUE TO FALL
ACROSS THE AREA THIS AFTERNOON. ADDITIONAL ICE ACCUMULATIONS WILL
RANGE FROM A TENTH TO TWO TENTHS OF AN INCH. IN ADDITION TO THE ICE...
THE AREA MAY STILL RECEIVE 1 TO 3 INCHES OF SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...
AND FREEZING RAIN WILL CAUSE SOME TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

BOYNE

WEATHER.GOV/LACROSSE
000 
WWUS43 KARX 081845
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
145 PM CDT SUN MAR 8 2009

...A WINTRY MIX OF PRECIPITATION WILL CONTINUE TO BE FOUND ACROSS
THE AREA THIS AFTERNOON...

.A LOW PRESSURE SYSTEM...OVER CENTRAL ILLINOIS...WILL CONTINUE TO
BRING GULF OF MEXICO MOISTURE NORTHWARD INTO THE REGION THIS 
AFTERNOON. THE MIXTURE OF PRECIPITATION HAS BECOME MAINLY SNOW 
ACROSS SOUTHEAST MINNESOTA...AND ALONG AND NORTH OF INTERSTATE 90
IN WISCONSIN. SNOW RATES ARE RUNNING UP TO AN INCH AN HOUR. TOTAL
SNOWFALL AMOUNTS WILL LIKELY RANGE FROM 1 TO 3 INCHES. BEFORE THE
SNOW ENDS LATE THIS AFTERNOON...THE SNOW MAY CHANGE BACK TO
FREEZING DRIZZLE.

MEANWHILE FREEZING RAIN AND SLEET CONTINUES TO FALL ACROSS
ALLAMAKEE COUNTY IN NORTHEAST IOWA...AND SOUTH OF INTERSTATE 90 IN
WEST CENTRAL AND SOUTHWEST WISCONSIN. ADDITIONAL ICE ACCUMULATIONS
WILL BE UP TO A TENTH OF AN INCH. 

TRAVEL WILL CONTINUE TO BE DIFFICULT TO TREACHEROUS THIS
AFTERNOON.

IAZ009>011-019-MNZ088-095-096-WIZ032>034-041>044-053>055-090000-
/O.CON.KARX.WS.W.0004.000000T0000Z-090309T0000Z/
HOWARD-WINNESHIEK-ALLAMAKEE-CHICKASAW-WINONA-FILLMORE-HOUSTON-
BUFFALO-TREMPEALEAU-JACKSON-LA CROSSE-MONROE-JUNEAU-ADAMS-VERNON-
CRAWFORD-RICHLAND-
INCLUDING THE CITIES OF...DECORAH...WAUKON...WINONA...
BLACK RIVER FALLS...LA CROSSE...SPARTA/TOMAH...MAUSTON...
VIROQUA...PRAIRIE DU CHIEN...RICHLAND CENTER
145 PM CDT SUN MAR 8 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING. 

SNOW WILL CONTINUE TO FALL ACROSS SOUTHEAST MINNESOTA...AND ALONG
AND NORTH OF INTERSTATE 90 IN WISCONSIN. SNOW RATES WILL BE UP TO
AN INCH AN HOUR. TOTAL SNOWFALL AMOUNTS WILL LIKELY RANGE FROM
1 TO 3 INCHES AN HOUR. BEFORE THE SNOW ENDS...IT MAY TRANSITION
BACK TO FREEZING DRIZZLE.

MEANWHILE A MIXTURE OF FREEZING RAIN AND SLEET WILL CONTINUE TO
FALL ACROSS ALLAMAKEE COUNTY IN NORTHEAST IOWA...AND SOUTH OF
INTERSTATE 90 IN WEST CENTRAL AND SOUTHWEST WISCONSIN. ADDITIONAL 
ICE ACCUMULATIONS WILL BE UP TO A TENTH OF AN INCH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A MIXTURE OF SNOW...SLEET...AND FREEZING RAIN IS OCCURRING. THIS
WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE THIS AFTERNOON.

&&

$$

IAZ008-018-MNZ079-086-087-094-WIZ029-090000-
/O.CON.KARX.WW.Y.0008.000000T0000Z-090309T0000Z/
MITCHELL-FLOYD-WABASHA-DODGE-OLMSTED-MOWER-CLARK-
INCLUDING THE CITIES OF...CHARLES CITY...ROCHESTER...AUSTIN...
NEILLSVILLE
145 PM CDT SUN MAR 8 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING. 

SNOW WILL CONTINUE TO FALL ACROSS THE AREA THROUGH AT LEAST 4 PM...
AND THE SNOW MAY CHANGE BACK OVER TO FREEZING DRIZZLE. TOTAL
SNOWFALL AMOUNTS WILL LIKELY RANGE FROM 1 TO 3 INCHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...
AND FREEZING RAIN WILL CAUSE SOME TRAVEL DIFFICULTIES. BE
PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE
CAUTION WHILE DRIVING.

&&

$$

BOYNE

WEATHER.GOV/LACROSSE
000 
WWUS43 KARX 081947
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
247 PM CDT SUN MAR 8 2009

...A WINTRY MIX OF PRECIPITATION WILL CONTINUE TO BE FOUND ACROSS
THE AREA THIS AFTERNOON...

.A LOW PRESSURE SYSTEM...OVER NORTHEAST ILLINOIS...WILL CONTINUE
TO BRING GULF OF MEXICO MOISTURE NORTHWARD INTO THE REGION THIS
AFTERNOON. THE MIXTURE OF PRECIPITATION HAS BECOME MAINLY SNOW.
SNOW RATES ARE RUNNING UP TO AN INCH AN HOUR EAST OF A NEILLSVILLE
WISCONSIN TO CHARLES CITY IOWA LINE. TOTAL SNOWFALL AMOUNTS WILL
LIKELY RANGE FROM 1 TO 4 INCHES. BEFORE THE SNOW ENDS LATE THIS
AFTERNOON...THE SNOW MAY BE A BRIEF PERIOD OF FREEZING DRIZZLE.

TRAVEL WILL CONTINUE TO BE DIFFICULT TO TREACHEROUS THIS
AFTERNOON.

IAZ009>011-019-MNZ088-095-096-WIZ032>034-041>044-053>055-090000-
/O.CON.KARX.WS.W.0004.000000T0000Z-090309T0000Z/
HOWARD-WINNESHIEK-ALLAMAKEE-CHICKASAW-WINONA-FILLMORE-HOUSTON-
BUFFALO-TREMPEALEAU-JACKSON-LA CROSSE-MONROE-JUNEAU-ADAMS-VERNON-
CRAWFORD-RICHLAND-
INCLUDING THE CITIES OF...DECORAH...WAUKON...WINONA...
BLACK RIVER FALLS...LA CROSSE...SPARTA/TOMAH...MAUSTON...
VIROQUA...PRAIRIE DU CHIEN...RICHLAND CENTER
247 PM CDT SUN MAR 8 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING. 

MUCH OF THE PRECIPITATION ACROSS THE AREA HAS BECOME ALL SNOW.
AREAS EAST OF A NEILLSVILLE WISCONSIN TO CHARLES CITY IOWA LINE
MAY SEE UP TO AN INCH AN HOUR. TOTAL SNOWFALL AMOUNTS WILL LIKELY
RANGE FROM 1 TO 4 INCHES. BEFORE THE SNOW ENDS LATE THIS
AFTERNOON...THE SNOW MAY BE A BRIEF PERIOD OF FREEZING DRIZZLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A MIXTURE OF SNOW...SLEET...AND FREEZING RAIN IS OCCURRING. THIS
WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE THIS AFTERNOON.

&&

$$

IAZ008-018-MNZ079-086-087-094-WIZ029-090000-
/O.CON.KARX.WW.Y.0008.000000T0000Z-090309T0000Z/
MITCHELL-FLOYD-WABASHA-DODGE-OLMSTED-MOWER-CLARK-
INCLUDING THE CITIES OF...CHARLES CITY...ROCHESTER...AUSTIN...
NEILLSVILLE
247 PM CDT SUN MAR 8 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING. 

THE SNOW RATES ARE RAPIDLY DECREASING ACROSS THE ADVISORY AREA.
ADDITIONAL SNOW AMOUNTS WILL BE LESS THAN AN INCH. THERE MAY BE A
BRIEF PERIOD OF FREEZING DRIZZLE AFTER THE SNOW ENDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...
AND FREEZING RAIN WILL CAUSE SOME TRAVEL DIFFICULTIES. BE
PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE
CAUTION WHILE DRIVING.

&&

$$

BOYNE

WEATHER.GOV/LACROSSE
000 
WWUS43 KARX 082044
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
344 PM CDT SUN MAR 8 2009

...SNOW BEGINNING TO MOVE OUT OF THE AREA...

.A LOW PRESSURE SYSTEM...OVER SOUTHERN LAKE MICHIGAN...WILL
CONTINUE TO BRING GULF OF MEXICO MOISTURE NORTHWARD INTO WESTERN
WISCONSIN LATE THIS AFTERNOON. SOUTHWEST AND CENTRAL WISCONSIN MAY
SEE ANYWHERE FROM ONE TO THREE INCHES OF ADDITIONAL SNOW.
OTHERWISE...THE SNOW WILL BE QUICKLY ENDING ACROSS THE AREA LATE
THIS AFTERNOON. BEFORE THE SNOW ENDS LATE THIS AFTERNOON...THE
SNOW MAY BE A BRIEF PERIOD OF FREEZING DRIZZLE.

TRAVEL WILL CONTINUE TO BE DIFFICULT TO TREACHEROUS ON UNTREATED
ROADS LATE THIS AFTERNOON.

IAZ009-019-MNZ088-095-WIZ032-082145-
/O.CAN.KARX.WS.W.0004.000000T0000Z-090309T0000Z/
HOWARD-CHICKASAW-WINONA-FILLMORE-BUFFALO-
INCLUDING THE CITY OF...WINONA
344 PM CDT SUN MAR 8 2009

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS CANCELLED THE
WINTER STORM WARNING. 

MUCH OF THE ACCUMULATING SNOW AND THE THREAT FOR SIGNIFICANT ICING
HAS ENDED ACROSS THIS AREA. AS A RESULT...THE WINTER STORM WARNING
IS CANCELLED.

$$

IAZ008-018-MNZ079-086-087-094-082145-
/O.CAN.KARX.WW.Y.0008.000000T0000Z-090309T0000Z/
MITCHELL-FLOYD-WABASHA-DODGE-OLMSTED-MOWER-
INCLUDING THE CITIES OF...CHARLES CITY...ROCHESTER...AUSTIN
344 PM CDT SUN MAR 8 2009

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS CANCELLED THE
WINTER WEATHER ADVISORY. 

MUCH OF THE ACCUMULATING SNOW AND THE THREAT FOR SIGNIFICANT ICING
HAS ENDED ACROSS THIS AREA. AS A RESULT...THE WINTER WEATHER ADVISORY
IS CANCELLED.

$$

IAZ010-011-MNZ096-WIZ033-034-041>044-053>055-090000-
/O.CON.KARX.WS.W.0004.000000T0000Z-090309T0000Z/
WINNESHIEK-ALLAMAKEE-HOUSTON-TREMPEALEAU-JACKSON-LA CROSSE-MONROE-
JUNEAU-ADAMS-VERNON-CRAWFORD-RICHLAND-
INCLUDING THE CITIES OF...DECORAH...WAUKON...BLACK RIVER FALLS...
LA CROSSE...SPARTA/TOMAH...MAUSTON...VIROQUA...PRAIRIE DU CHIEN...
RICHLAND CENTER
344 PM CDT SUN MAR 8 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING. 

THE SNOW WILL GRADUALLY END FROM THE WEST THIS AFTERNOON. AREAS
EAST OF A MARSHFIELD WISCONSIN TO OELWEIN IOWA LINE MAY SEE
ANYWHERE FROM 1 TO 3 INCHES OF ADDITIONAL SNOW. MEANWHILE THE
AREAS WEST OF THIS AFOREMENTIONED LINE SHOULD SEE ADDITIONAL SNOW
ACCUMULATIONS OF LESS THAN AN INCH.

BEFORE THE SNOW ENDS LATE THIS AFTERNOON...THE SNOW MAY BE A
BRIEF PERIOD OF FREEZING DRIZZLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A MIXTURE OF SNOW...SLEET...AND FREEZING RAIN IS OCCURRING. THIS
WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE THIS AFTERNOON.

&&

$$

WIZ029-090000-
/O.CON.KARX.WW.Y.0008.000000T0000Z-090309T0000Z/
CLARK-
INCLUDING THE CITY OF...NEILLSVILLE
344 PM CDT SUN MAR 8 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING. 

THE SNOW RATES ARE RAPIDLY DECREASING ACROSS CLARK COUNTY. 
ADDITIONAL SNOW AMOUNTS WILL BE LESS THAN AN INCH. THERE MAY BE A
BRIEF PERIOD OF FREEZING DRIZZLE AFTER THE SNOW ENDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...
AND FREEZING RAIN WILL CAUSE SOME TRAVEL DIFFICULTIES. BE
PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE
CAUTION WHILE DRIVING.

&&

$$

BOYNE

WEATHER.GOV/LACROSSE
000 
WWUS43 KARX 082200
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
500 PM CDT SUN MAR 8 2009

...SNOW DIMINISHING QUICKLY ACROSS THE AREA...

.SNOW WILL CONTINUE TO QUICKLY COME TO AN END THROUGH 7 PM EAST OF
THE MISSISSIPPI RIVER OVER SOUTHWEST AND CENTRAL WISCONSIN.
ADDITIONAL TOTAL ACCUMULATIONS OF SNOW WILL RANGE FROM 1 TO 4
INCHES...ON TOP OF THE SLEET AND FREEZING RAIN ACCUMULATIONS WHICH
TOTALED A QUARTER OF AN INCH OR MORE IN SOME LOCATIONS.

UNTIL THE SNOW ENDS...EXPECT VISIBILITIES IN FALLING SNOW TO RANGE
FROM A HALF MILE TO 2 MILES...WITH ABOUT ANOTHER INCH OF SNOW
POSSIBLE EAST OF LA CROSSE TOWARD MAUSTON AND RICHLAND CENTER.
WEST OF THE MISSISSIPPI RIVER...SNOW HAS ENDED AND THE WINTER
STORM WARNING HAS BEEN CANCELLED.

IAZ010-011-MNZ096-WIZ033-082300-
/O.CAN.KARX.WS.W.0004.000000T0000Z-090309T0000Z/
WINNESHIEK-ALLAMAKEE-HOUSTON-TREMPEALEAU-
INCLUDING THE CITIES OF...DECORAH...WAUKON
500 PM CDT SUN MAR 8 2009

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS CANCELLED THE
WINTER STORM WARNING. 

SNOW HAS ENDED...AND ROAD CONDITIONS WILL RAPIDLY IMPROVE THROUGH
THE EVENING AS ROAD CREWS TREAT THE ROADS AND TEMPERATURES REMAIN
AROUND 30 DEGREES. TRAVEL CAUTIOUSLY UNTIL THE ROADS HAVE BEEN CLEARED.

$$

WIZ029-082300-
/O.CAN.KARX.WW.Y.0008.000000T0000Z-090309T0000Z/
CLARK-
INCLUDING THE CITY OF...NEILLSVILLE
500 PM CDT SUN MAR 8 2009

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS CANCELLED THE
WINTER WEATHER ADVISORY. 

SNOW HAS ENDED...AND ROAD CONDITIONS WILL RAPIDLY IMPROVE THROUGH
THE EVENING AS ROAD CREWS TREAT THE ROADS AND TEMPERATURES REMAIN
AROUND 30 DEGREES. TRAVEL CAUTIOUSLY UNTIL THE ROADS HAVE BEEN CLEARED.

$$

WIZ034-041>044-053>055-090000-
/O.CON.KARX.WS.W.0004.000000T0000Z-090309T0000Z/
JACKSON-LA CROSSE-MONROE-JUNEAU-ADAMS-VERNON-CRAWFORD-RICHLAND-
INCLUDING THE CITIES OF...BLACK RIVER FALLS...LA CROSSE...
SPARTA/TOMAH...MAUSTON...VIROQUA...PRAIRIE DU CHIEN...
RICHLAND CENTER
500 PM CDT SUN MAR 8 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING. 

THE SNOW WILL GRADUALLY END FROM WEST TO EAST THROUGH 7 PM.
SNOWFALL TOTALS WILL RANGE FROM 1 TO 4 INCHES...ON TOP OF ICE
ACCUMULATIONS FROM SLEET AND FREEZING RAIN THAT EXCEEDED A QUARTER
OF AN INCH IN SOME LOCATIONS. ROAD CONDITIONS SHOULD BEGIN TO
IMPROVE QUICKLY AFTER THE SNOW ENDS...BUT UNTIL IT DOES...USE
CAUTION WHEN TRAVELING AS ROADS REMAIN VERY SLIPPERY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A MIXTURE OF SNOW...SLEET...AND FREEZING RAIN IS OCCURRING. THIS
WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE THIS AFTERNOON.

&&

$$

BINAU

WEATHER.GOV/LACROSSE
000 
WWUS43 KARX 082223
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
523 PM CDT SUN MAR 8 2009

...SNOW DIMINISHING QUICKLY ACROSS THE AREA...

.SNOW WILL CONTINUE TO QUICKLY COME TO AN END THROUGH 7 PM EAST
OF THE MISSISSIPPI RIVER OVER SOUTHWEST AND CENTRAL WISCONSIN.
TOTAL ACCUMULATIONS OF SNOW WILL RANGE FROM 1 TO 4 INCHES...ON
TOP OF THE SLEET AND FREEZING RAIN ACCUMULATIONS WHICH TOTALED A
QUARTER OF AN INCH OR MORE IN SOME LOCATIONS.

UNTIL THE SNOW ENDS...EXPECT VISIBILITIES IN FALLING SNOW TO
RANGE FROM A HALF MILE TO 2 MILES...WITH ABOUT ANOTHER INCH OF
SNOW POSSIBLE EAST OF LA CROSSE TOWARD MAUSTON AND RICHLAND
CENTER.

WIZ034-041-082330-
/O.CAN.KARX.WS.W.0004.000000T0000Z-090309T0000Z/
JACKSON-LA CROSSE-
INCLUDING THE CITIES OF...BLACK RIVER FALLS...LA CROSSE
523 PM CDT SUN MAR 8 2009

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS CANCELLED THE
WINTER STORM WARNING. 

SNOW HAS ENDED AND ROAD CONDITIONS ARE QUICKLY IMPROVING WITH
TEMPERATURES IN THE LOWER 30S. UNTIL ROADS HAVE BEEN TREATED...USE
CAUTION WHEN TRAVELING THROUGH THE EARLY EVENING.

$$

WIZ042>044-053>055-090000-
/O.CON.KARX.WS.W.0004.000000T0000Z-090309T0000Z/
MONROE-JUNEAU-ADAMS-VERNON-CRAWFORD-RICHLAND-
INCLUDING THE CITIES OF...SPARTA/TOMAH...MAUSTON...VIROQUA...
PRAIRIE DU CHIEN...RICHLAND CENTER
523 PM CDT SUN MAR 8 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING. 

SNOW WILL QUICKLY END BY 630 OR 7 PM ACROSS THE AREA. SNOWFALL TOTALS
WILL RANGE FROM 1 TO 4 INCHES...ON TOP OF ICE ACCUMULATIONS FROM
SLEET AND FREEZING RAIN THAT EXCEEDED A QUARTER OF AN INCH IN SOME
LOCATIONS. ROAD CONDITIONS SHOULD BEGIN TO IMPROVE QUICKLY AFTER
THE SNOW ENDS...BUT UNTIL IT DOES...USE CAUTION WHEN TRAVELING AS
ROADS REMAIN VERY SLIPPERY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A MIXTURE OF SNOW...SLEET...AND FREEZING RAIN IS OCCURRING. THIS
WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE THIS AFTERNOON.

&&

$$

BINAU

WEATHER.GOV/LACROSSE
000 
WWUS43 KARX 082258
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
558 PM CDT SUN MAR 8 2009

...SNOW DIMINISHING QUICKLY ACROSS THE AREA...

.SNOW WILL CONTINUE TO QUICKLY COME TO AN END THROUGH 7 PM EAST
OF THE MISSISSIPPI RIVER OVER SOUTHWEST AND CENTRAL WISCONSIN.
TOTAL ACCUMULATIONS OF SNOW WILL RANGE FROM 1 TO 4 INCHES...ON
TOP OF THE SLEET AND FREEZING RAIN ACCUMULATIONS WHICH TOTALED A
QUARTER OF AN INCH OR MORE IN SOME LOCATIONS.

UNTIL THE SNOW ENDS...EXPECT VISIBILITIES IN FALLING SNOW TO
RANGE FROM A HALF MILE TO 2 MILES...WITH ABOUT ANOTHER HALF INCH
OF SNOW POSSIBLE TOWARD MAUSTON AND RICHLAND CENTER.

WIZ042-053-054-090000-
/O.CAN.KARX.WS.W.0004.000000T0000Z-090309T0000Z/
MONROE-VERNON-CRAWFORD-
INCLUDING THE CITIES OF...SPARTA/TOMAH...VIROQUA...
PRAIRIE DU CHIEN
558 PM CDT SUN MAR 8 2009

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS CANCELLED THE
WINTER STORM WARNING. 

SNOW HAS ENDED ACROSS THE AREA. ROAD CONDITIONS SHOULD RAPIDLY
IMPROVE THROUGH THE EVENING HOURS. UNTIL THE ROADS CAN BE PLOWED
AND TREATED...TRAVEL CAUTIOUSLY DUE TO THE ACCUMULATIONS OF
SLEET...FREEZING RAIN...AND SNOW.

$$

WIZ043-044-055-090000-
/O.CON.KARX.WS.W.0004.000000T0000Z-090309T0000Z/
JUNEAU-ADAMS-RICHLAND-
INCLUDING THE CITIES OF...MAUSTON...RICHLAND CENTER
558 PM CDT SUN MAR 8 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING. 

SNOW WILL QUICKLY END BY 630 OR 7 PM ACROSS THE AREA. SNOWFALL
TOTALS WILL RANGE FROM 1 TO 4 INCHES...ON TOP OF ICE
ACCUMULATIONS FROM SLEET AND FREEZING RAIN THAT EXCEEDED A
QUARTER OF AN INCH IN SOME LOCATIONS. ROAD CONDITIONS SHOULD
BEGIN TO IMPROVE QUICKLY AFTER THE SNOW ENDS...BUT UNTIL IT
DOES...USE CAUTION WHEN TRAVELING AS ROADS REMAIN VERY SLIPPERY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A MIXTURE OF SNOW...SLEET...AND FREEZING RAIN IS OCCURRING. THIS
WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE THIS AFTERNOON.

&&

$$

BINAU

WEATHER.GOV/LACROSSE
000 
WWUS43 KARX 082352
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
652 PM CDT SUN MAR 8 2009

...WINTRY MESS HAS COME TO AN END...

.THE STORM SYSTEM WHICH BROUGHT A WINTRY MIX OF SLEET...FREEZING
RAIN...AND A BURST OF HEAVY SNOW HAS PUSHED OUT OF THE AREA. THE
REMAINING PORTIONS OF THE WINTER STORM WARNING WILL EXPIRE AT 7 PM
CDT.

WIZ043-044-055-090100-
/O.EXP.KARX.WS.W.0004.000000T0000Z-090309T0000Z/
JUNEAU-ADAMS-RICHLAND-
INCLUDING THE CITIES OF...MAUSTON...RICHLAND CENTER
652 PM CDT SUN MAR 8 2009

...WINTER STORM WARNING WILL EXPIRE AT 7 PM CDT THIS EVENING...

THE WINTER STORM WARNING WILL EXPIRE AT 7 PM CDT THIS EVENING. 

THE STORM SYSTEM WHICH BROUGHT A WINTRY MIX OF SLEET...FREEZING
RAIN...AND A BURST OF HEAVY SNOW HAS PUSHED OUT OF THE AREA. THE
REMAINING PORTIONS OF THE WINTER STORM WARNING WILL EXPIRE AT 7 PM
CDT.

$$

BINAU

WEATHER.GOV/LACROSSE

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 La Crosse, WI wrote its last area forecast discussion before this winter storm warning went out at Mar 8, 12:08 PM CDT, 3 minutes earlier.

Area forecast discussion, Mar 8, 12:08 PM CDT, 3 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LA CROSSE WI
1208 PM CDT SUN MAR 8 2009

.UPDATE...
THE RUC MODEL HAS BEEN CONSISTENT THIS MORNING SHOWING VERY LITTLE
COOLING IN THE LOWER LEVELS OF THE ATMOSPHERE FOR CENTRAL
WISCONSIN INTO PARTS OF SOUTHEAST MINNESOTA. THIS WILL KEEP THE
WARM NOSE OF AIR IN PLACE AND KEEP FREEZING RAIN AS THE DOMINANT
PRECIPITATION TYPE. SOME COOLING EXPECTED TO WORK IN FROM THE WEST
DURING THE MID TO LATE AFTERNOON HOURS FOR AN EVENTUAL CHANGE OVER
TO SNOW. SOME ICE ACCUMULATIONS EXCEEDING A TENTH OF AN INCH HAVE
ALREADY BEEN REPORTED AND AMOUNTS NEAR A QUARTER OF AN INCH WILL
BE POSSIBLE. WILL UPGRADE PARTS OF THE ADVISORY TO A WINTER STORM WATCH.

04/BOYNE

&&

.PREV DISCUSSION... /ISSUED 345 AM CDT SUN MAR 8 2009/

SHORT TERM...THROUGH TUESDAY NIGHT

PRIMARY FORECAST CONCERNS REMAIN FOCUSED ON PRECIPITATION TYPE...
AMOUNTS AND ATTENDANT HEADLINES TODAY. ATTENTION THEN TURNS TO
PRECIPITATION CHANCES...AMOUNTS...STRONG GRADIENT WINDS AND
CONVECTIVE POTENTIAL FOR EARLY IN THE WEEK.

SURFACE ANALYSIS EARLY THIS MORNING HAD WELL DEFINED FRONT EXTENDING
FROM CENTRAL IL ACROSS NORTHERN MISSOURI TO LOW PRESSURE IN SOUTHEAST
KANSAS. STRONG LOW LEVEL FLOW OF 40-50KTS IMPINGING UPON FRONT...
TRIGGERING LARGE AREA OF CONVECTION ALONG AND NORTH OF FRONT.
MEANWHILE...DEFORMATION ZONE PRECIPITATION SHOWING ITS HAND OVER
NORTHWEST IOWA AND EASTERN NEBRASKA. SURFACE OBSERVATIONS IN THIS
REGION INDICATED MIX OF FREEZING RAIN...SNOW AND SLEET. WATER VAPOR
IMAGERY SHOWED VIGOROUS SHORT WAVE EJECTING OUT OF TX/OK PANHANDLE
AREA...WITH INDICATION OF BAROCLINIC LEAF SIGNATURE ACROSS MID
MISSOURI VALLEY.

THERE WAS OVERALL EXCELLENT CLUSTERING OF UPPER LEVEL AND SURFACE
FEATURES IN THE 08.00Z NCEP AND EUROPEAN DETERMINISTIC MODEL SUITE...
ALONG WITH LATEST PROBABILISTIC DATA SETS. AS A RESULT...FORECAST
CONFIDENCE WAS HIGH THAT MUCH OF THE FORECAST AREA WILL RECEIVE
WIDESPREAD PRECIPITATION TODAY...MOST LIKELY IN VARIOUS TYPES...
RANGING FROM RAIN TO SNOW...WITH A WINTRY MIX IN BETWEEN.

LOOKING AHEAD...08.00Z DETERMINISTIC AND LATEST PROBABILISTIC
SOLUTIONS WERE ALSO IN GENERALLY GOOD AGREEMENT RELATED TO SYSTEM
IMPACTING THE REGION MONDAY NIGHT INTO TUESDAY NIGHT. IN FACT...WITH
REGARD TO PRECIPITATION...THERE APPEARS TO BE A CONSISTENT SIGNAL OF
TWO QPF MAXIMA SETTING UP ACROSS THE REGION. ONE QPF MAXIMA APPEARS
PROBABLE ACROSS NORTHERN IL...WITH ANOTHER MAXIMA OVER NORTH AND WEST
SECTIONS OF MN INTO NORTHWEST WI.

TODAY...QUICK HITTING BUT STRONGLY DYNAMIC SURFACE WAVE EJECTING
ACROSS THE UPPER MISSISSIPPI VALLEY. FORECAST GUIDANCE CONTINUES
TO INDICATE THIS SYSTEM HAS QUITE A BIT GOING FOR IT AS MANIFESTED
BY UPPER LEVEL DIVERGENCE ASSOCIATED WITH COUPLED 300MB JET STRUCTURE
TO ENHANCE UPWARD VERTICAL MOTIONS. IN ADDITION...STRONG LOW LEVEL
WARM AIR ADVECTION AND DEEP LAYERED MODERATE TO STRONG Q-G
CONVERGENCE CONTINUED TO SUPPORT A WIDESPREAD PRECIPITATION EVENT...
ALONG WITH POTENTIAL FOR BURSTS OF HEAVIER PRECIPITATION.

PRECIPITATION TYPE ALWAYS A TOUGH CALL AND THIS CASE HAS BEEN NO
DIFFERENT. BASED ON CURRENT UPSTREAM SURFACE OBSERVATIONS OF
FREEZING RAIN...SLEET AND SNOW...ALONG WITH UTILIZING TOP-DOWN
APPROACH FROM GFS AND NAM/WRF BUFKIT FORECAST SOUNDINGS...CONTINUES
TO SUGGEST A WINTRY MIX OF FREEZING RAIN...SLEET...SNOW THROUGH HEART
OF THE FORECAST AREA. THIS SHOULD CHANGE TO ALL SNOW AS COLDER AIR
FILTERS IN TODAY...WITH TOTAL SNOW ACCUMULATIONS 2 TO 6 INCHES.

OF NOTE...NORTHERN SECTIONS OF THE FORECAST AREA SHOULD BE MOSTLY
SNOW...WHILE SOUTHERN MOST SECTIONS EXPECTED TO BE MAINLY RAIN. AS
WAS THE CASE IN PREVIOUS PROBABILISTIC DATA SETS...08.03Z PLUME
DIAGRAMS AND DOMINANT PRECIPITATION TYPE CONTINUED TO SUPPORT THE
AFOREMENTIONED PRECIPITATION TYPE SOLUTION AS WELL. THIS WAS
CORROBORATED BY LATEST HPC GUIDANCE. BY THE WAY...PLEASE NOTE
HYDROLOGY SECTION BELOW FOR DETAILS CONCERNING RAINFALL POTENTIAL
ACROSS SOUTHERN MOST SECTIONS OF THE FORECAST AREA TODAY.

STRONG FORCING SIGNALS EXPECTED TO EXIT RATHER RAPIDLY BY END OF
THE DAY...AS UPPER LEVEL AND SURFACE WAVE MOVE QUICKLY INTO GREAT
LAKES REGION. THUS...PRECIPITATION SHOULD TAPER OFF AND END FROM
WEST TO EAST STEADILY BETWEEN 08.20Z-09.00Z. CONFIDENCE WAS HIGH IN
WINTER WEATHER ADVISORY HEADLINES TO REMAIN AS IS...WITH ONLY CHANGE
TO ADD PARTS OF SOUTHWEST WI...INCLUDING WIZ054-055.

MONDAY NIGHT INTO TUESDAY NIGHT...08.00Z DETERMINISTIC NCEP AND
EUROPEAN DATA SUITE CONTINUED TO INDICATE YET ANOTHER STRONGLY
DYNAMIC UPPER LEVEL WAVE AND ASSOCIATED DEEPENING SURFACE LOW TO
MOVE ACROSS THE REGION. MAIN IMPACTS ON THE FORECAST AREA SHOULD BE
POTENTIALLY WIDESPREAD PRECIPITATION...ALONG WITH STRONG GRADIENT
WINDS ON THE SYSTEMS BACKSIDE. THERE MAY EVEN BE A SEVERE WEATHER
THREAT IN PART OF THE FORECAST AREA...WHICH ULTIMATELY DEPENDS UPON
POSITION OF WARM SECTOR.

BASED ON CONSISTENCY IN DETERMINISTIC AND PROBABILISTIC DATA...
CONFIDENCE WAS HIGH THAT PRECIPITATION TYPE SHOULD BE MAINLY RAIN
DURING THE DAY TUESDAY. AS POINTED OUT EARLIER...TWO QPF MAXIMA
APPEAR PROBABLE IN THE REGION...ONE NORTHWEST OF THE AREA ASSOCIATED
WITH DEFORMATION ZONE...WHILE OTHER ONE RESIDES SOUTHEAST OF THE
AREA ASSOCIATED WITH CONVECTIVE POTENTIAL. IN ADDITION...STRONG
GRADIENT WINDS EXPECTED WITH THIS SYSTEM...ESPECIALLY TUESDAY NIGHT.
NUDGED WIND SPEEDS AND GUSTS UPWARD A BIT MORE BASED ON HIGH
CONFIDENCE THAT THERE IS GOING TO BE A TIGHT PRESSURE GRADIENT.

LONG TERM...WEDNESDAY THROUGH SATURDAY

WITH FOCUS ON STORM SYSTEMS TODAY AND TUESDAY...NOT TOO MUCH
TIME TAKEN TO ADDRESS THIS TIME FRAME. GOOD NEWS WAS THAT FORECAST
CONFIDENCE WAS FAIRLY HIGH FOR A PERIOD OF TRANQUIL WEATHER PER
CONSISTENCY OF LAST SEVERAL DETERMINISTIC GFS AND ECMWF...AS
WELL AS ENSEMBLE MEANS. NO CHANGES WERE MADE TO EXTENDED OUTLOOK.

AVIATION...

AN AREA OF LOW PRESSURE WILL MOVE OUT OF THE SOUTHERN PLAINS THIS
MORNING...TRACKING ACROSS NORTHERN ILL THIS AFTERNOON...AND THEN OFF
ACROSS THE EASTERN GREAT LAKES TONIGHT. A WARM FRONT WILL CONTINUE
TO RUN EAST/NORTHEAST OF THE LOW...WHILE A LOFT...A SHORTWAVE TROUGH
WILL SPIN WITH THE SFC LOW. MILD/MOIST AIR RIDING INTO AND NORTH OF
THE FRONT WILL PROVIDE THE FUEL FOR CLOUDS/PCPN. CEILINGS WILL
CONTINUE TO LOWER EARLY THIS MORNING...WITH MVFR/IFR CEILINGS
PUSHING ACROSS KRST/KLSE BY 15Z. PCPN WILL START TO SPREAD ACROSS
THE TAF SITES AROUND 18Z...AND SHOULD FALL MOSTLY AS SNOW FOR KRST.
HOWEVER...A SLIGHTLY WARMER TEMP PROFILE AT KLSE WILL LEAD TO A
POTENTIAL FOR A SN/IP MIX INITIALLY...POTENTIALLY SOME
-FZRA...BEFORE CHANGING OVER TO ALL SNOW EARLY IN THE AFTERNOON.
THE PCPN SHOULD EXIT EAST BY 00Z WITH A WEAK RIDGE OF HIGH PRESSURE
BUILDING IN FOR TONIGHT. SUBSIDENCE AND DECREASING SATURATION POST
THE SYSTEM SHOULD LEAD TO A DECREASE IN THE CLOUD COVER...AND
IMPROVEMENT FROM THE IFR/MVFR CEILINGS. HOWEVER...CONFIDENCE NOT
OVERLY HIGH IN THE EXTENT OF THE CLEARING. 08.00Z NAM BUFKIT
SOUNDINGS HINT AT HOLDING MOISTURE BELOW AN INVERSION AROUND 1500
FT. WILL BE MORE OPTIMISTIC WITH THE CLOUD COVER FOR NOW...BUT THESE
TRENDS WILL HAVE TO BE MONITORED.

HYDROLOGY...

PRIMARY CONCERN FOCUSES ON RAINFALL AMOUNTS EXPECTED TODAY ACROSS
SOUTHERN SECTIONS OF THE FORECAST AREA. SPECIFICALLY...THIS ALLUDES
TO PARTS OF NORTHEAST IOWA AND ADJACENT SOUTHWEST CORNER OF WI...
WHERE RIVERS AND SMALL STREAMS LEVELS WERE ALREADY HIGH DUE TO
RUNOFF FROM SATURDAY RAINFALL.

08.00Z NCEP AND EUROPEAN DETERMINISTIC MODELS SHOWED POTENTIAL FOR
UP TO AROUND AN INCH OF RAIN IN AFOREMENTIONED LOCATIONS TODAY.
08.03Z SREF AND LATEST ARXRUCWRF SUGGEST SIMILAR POTENTIAL...THUS
FORECAST CONFIDENCE WAS HIGH THAT RAINFALL AMOUNTS SHOULD BE 0.50
INCH TO 1 INCH ACROSS AREA OF CONCERN PER CURRENT DATA BASE.

WE HAVE CONTINUED FLOOD WATCH TODAY AND PLEASE REFERENCE LATEST
FLOOD WATCH STATEMENTS AND LOCAL HAZARDOUS WEATHER OUTLOOK FOR
FURTHER DETAILS CONCERNING RIVERS AND STREAMS IN PARTS OF NORTHEAST
IOWA AND SOUTHWEST CORNER OF WI.

&&

.ARX WATCHES/WARNINGS/ADVISORIES...
WI...WINTER STORM WARNING UNTIL 7 PM CDT THIS EVENING FOR WIZ032-
     WIZ033-WIZ034-WIZ041-WIZ042-WIZ043-WIZ044-WIZ053-WIZ054-
     WIZ055.

     WINTER WEATHER ADVISORY UNTIL 7 PM CDT THIS EVENING FOR WIZ029.

     FLOOD WATCH UNTIL 7 PM CDT THIS EVENING FOR WIZ061.

MN...WINTER STORM WARNING UNTIL 7 PM CDT THIS EVENING FOR MNZ088-
     MNZ095-MNZ096.

     WINTER WEATHER ADVISORY UNTIL 7 PM CDT THIS EVENING FOR MNZ079-
     MNZ086-MNZ087-MNZ094.

IA...WINTER STORM WARNING UNTIL 7 PM CDT THIS EVENING FOR IAZ009-
     IAZ010-IAZ011-IAZ019.

     WINTER WEATHER ADVISORY UNTIL 7 PM CDT THIS EVENING FOR IAZ008-
     IAZ018.

     FLOOD WATCH UNTIL 7 PM CDT THIS EVENING FOR IAZ029-IAZ030.

&&
Hazardous weather outlook, Mar 8, 5:00 AM CDT, 7 hours 11 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LA CROSSE WI
500 AM CDT SUN MAR 8 2009

WIZ017-091000-
TAYLOR-
500 AM CDT SUN MAR 8 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF NORTH CENTRAL
WISCONSIN.

.DAY ONE...TODAY AND TONIGHT

SNOW WILL SPREAD ACROSS THE AREA TODAY...AS AN AREA OF LOW PRESSURE
MOVES FROM THE SOUTHERN PLAINS TO ACROSS THE EASTERN GREAT LAKES
TONIGHT. THE BULK OF THE ACCUMULATING SNOWS WILL FALL SOUTH OF
THE AREA...BUT LOCAL AMOUNTS FOR TAYLOR COUNTY OF A TRACE TO AROUND 1
INCH CAN BE EXPECTED.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

ANOTHER STORM SYSTEM WILL IMPACT THE REGION FOR MONDAY NIGHT THROUGH
TUESDAY NIGHT. SNOW WILL BE POSSIBLE MONDAY NIGHT...RAIN AND
ISOLATED THUNDERSTORMS FOR TUESDAY...AND THEN SNOW FOR TUESDAY NIGHT.
ORGANIZED SEVERE WEATHER IS NOT EXPECTED TUESDAY...WITH ONLY MINOR
SNOW ACCUMULATIONS MONDAY NIGHT AND TUESDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SNOW FALL REPORTS WOULD BE GREATLY APPRECIATED TODAY.

.EMERGENCY MANAGEMENT COORDINATION...

NO CALL IS SCHEDULED.

IAZ008>011-018-019-MNZ079-086>088-094>096-WIZ029-032>034-041>044-
053>055-091000-
ADAMS-ALLAMAKEE-BUFFALO-CHICKASAW-CLARK-CRAWFORD-DODGE-FILLMORE-
FLOYD-HOUSTON-HOWARD-JACKSON-JUNEAU-LA CROSSE-MITCHELL-MONROE-MOWER-
OLMSTED-RICHLAND-TREMPEALEAU-VERNON-WABASHA-WINNESHIEK-WINONA-
500 AM CDT SUN MAR 8 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF SOUTHEAST MINNESOTA...
AND WEST CENTRAL INTO CENTRAL AND NORTH CENTRAL WISCONSIN.

.DAY ONE...TODAY AND TONIGHT

SNOW...SLEET AND POSSIBLY SOME FREEZING RAIN...WILL SPREAD ACROSS THE
REGION THIS MORNING. THIS WINTRY MIX WILL CHANGE OVER TO ALL SNOW IN
THE AFTERNOON...COMING TO AN END BY EARLY EVENING. SNOW ACCUMULATIONS
OF 3 TO 6 INCHES ARE EXPECTED NORTH OF THE INTERSTATE 90 CORRIDOR.
LESSER AMOUNTS WILL FALL SOUTH OF THERE AS THE SNOW WILL MIX
WITH SLEET OR FREEZING RAIN FOR A LONGER PERIOD. SOME MINOR ICING
COULD RESULT. A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 7 PM THIS
EVENING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

ANOTHER STORM SYSTEM WILL IMPACT THE REGION FOR MONDAY NIGHT THROUGH
TUESDAY NIGHT. SNOW WILL BE POSSIBLE MONDAY NIGHT...RAIN AND
ISOLATED THUNDERSTORMS FOR TUESDAY...AND THEN SNOW FOR TUESDAY NIGHT.
ORGANIZED SEVERE WEATHER IS NOT EXPECTED TUESDAY...WITH ONLY MINOR
SNOW ACCUMULATIONS MONDAY NIGHT AND TUESDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

PRECIPITATION REPORTS WOULD BE GREATLY APPRECIATED TODAY.

.EMERGENCY MANAGEMENT COORDINATION...

NO CALL IS SCHEDULED.

IAZ029-030-WIZ061-091000-
CLAYTON-FAYETTE-GRANT-
500 AM CDT SUN MAR 8 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF NORTHEAST IOWA AND
SOUTHWEST WISCONSIN.

.DAY ONE...TODAY AND TONIGHT

SOME MINOR FLOODING MAY BE FOUND ALONG THE TRIBUTARIES OF THE TURKEY
RIVER IN FAYETTE AND CLAYTON COUNTIES IN NORTHEAST IOWA...AND THE
GRANT RIVER IN SOUTHWEST WISCONSIN. OTHER SMALL STREAMS AND RIVERS
SUCH AS BLOODY RUN CREEK...AND THE PLATTE RIVER...MAY BRING SOME
MINOR FLOODING ALONG THESE WATERWAYS. WITH ANOTHER 1/2 TO 1 INCH
OF RAINFALL POSSIBLE TODAY...A MORE SERIOUS FLOOD THREAT COULD
DEVELOP...AND THE NEED FOR RIVER FLOOD WARNINGS FOR PARTS OF THIS
AREA. A FLOOD WATCH IS IN EFFECT THROUGH THIS EVENING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

ANOTHER STORM SYSTEM WILL IMPACT THE REGION FOR MONDAY NIGHT THROUGH
TUESDAY NIGHT. RAIN OR SNOW WILL BE POSSIBLE MONDAY NIGHT...RAIN AND
ISOLATED THUNDERSTORMS FOR TUESDAY...AND THEN SNOW FOR TUESDAY NIGHT.
ORGANIZED SEVERE WEATHER IS NOT EXPECTED TUESDAY...WITH ONLY MINOR
SNOW ACCUMULATIONS MONDAY NIGHT AND TUESDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

PRECIPITATION REPORTS...OR REPORTS OF FLOODING...WOULD BE
APPRECIATED.

.EMERGENCY MANAGEMENT COORDINATION...

NO CALL IS SCHEDULED.

RIECK

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 7, 7:31 PM CSTAreal Flood AdvisoryARXClayton4 hr
Mar 8, 4:47 PM CDTAreal Flood AdvisoryARXClayton7 hr

Nearby

Winter Storm Warnings in Wisconsin, 2009Winter Storm Warnings in Iowa, 2009Winter Storm Warnings in Minnesota, 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.