Alert archive / Wisconsin / Snow Advisories in 2008

Snow Advisory 4, NWS La Crosse, WI

February 11, 20087 counties in Minnesota; 11 counties in Wisconsin; 8 counties in Iowa

NWS La Crosse, WI issued this snow advisory at Feb 11, 2008, 2:52 AM CST for 7 counties in Minnesota; 11 counties in Wisconsin; 8 counties in Iowa. It took effect at Feb 11, 2008, 3:00 PM CST. It was in force for 21 hr.

The area

The counties it named.

The facts

Issued
Feb 11, 2008, 2:52 AM CST (08:52 UTC)
In effect from
Feb 11, 2008, 3:00 PM CST
Expired
Feb 12, 2008, 12:00 PM CST
In force
21 hr
Issued by
NWS La Crosse, WI
All 26 counties

Allamakee County, IA, Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Winneshiek County, IA, Dodge County, MN, Fillmore County, MN, Houston County, MN, Mower County, MN, Olmsted County, MN, Wabasha County, MN, Winona County, MN, Adams County, WI, Buffalo County, WI, Crawford County, WI, Grant 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), 37 km from the middle of the area, began a volume at 08:54 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 8.9 hours before the alert went out and 212 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 00:00Z on 2008-02-11Temperature 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 00:00Z on 2008-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -49 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
1283 m above ground
0-6 km bulk shear
75 kt
0-1 km storm-relative helicity
-49 m²/s²
0-3 km storm-relative helicity
53 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 110852
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
252 AM CST MON FEB 11 2008

...ACCUMULATING SNOWS TO RETURN TODAY AND TONIGHT...

.SNOW WILL SPREAD INTO THE AREA LATER THIS AFTERNOON...CONTINUING
THROUGH TONIGHT...BRINGING FLUFFY ACCUMULATIONS OF 3 TO 6 INCHES.

A DISTURBANCE IN THE UPPER ATMOSPHERE WILL SPIN FROM THE NORTHERN
PLAINS TO ACROSS THE UPPER MISSISSIPPI RIVER VALLEY
TONIGHT...BRINGING SNOW TO AREAS WEST OF THE MISSISSIPPI RIVER BY
MID AFTERNOON...AND THEN TO WESTERN WISCONSIN BY THE EVENING.
THE SNOW WILL THEN CONTINUE FOR MUCH OF TONIGHT...EXITING EAST
EARLY TUESDAY MORNING. ASIDE FROM THE EXPECTED 3 TO 6
INCHES...SOME LOCALLY HIGHER AMOUNTS WILL BE POSSIBLE ACROSS
PORTIONS OF NORTHEAST IOWA AND SOUTHWEST WISCONSIN. 

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ032>034-
041>044-053>055-061-111700-
/O.NEW.KARX.SN.Y.0004.080211T2100Z-080212T1200Z/
MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE-
CLAYTON-WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON-
BUFFALO-TREMPEALEAU-JACKSON-LA CROSSE-MONROE-JUNEAU-ADAMS-VERNON-
CRAWFORD-RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...CHARLES CITY...
OELWEIN...ROCHESTER...WINONA...AUSTIN...BLACK RIVER FALLS...
LA CROSSE...SPARTA/TOMAH...MAUSTON...VIROQUA...PRAIRIE DU CHIEN...
RICHLAND CENTER...PLATTEVILLE
252 AM CST MON FEB 11 2008

...SNOW ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO 6 AM CST
TUESDAY...

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A SNOW
ADVISORY...WHICH IS IN EFFECT FROM 3 PM THIS AFTERNOON TO 6 AM
CST TUESDAY. 

SNOWFALL OF 3 TO 6 INCHES IS EXPECTED...WITH LOCALLY HIGHER
AMOUNTS POSSIBLE OVER NORTHEAST IOWA AND SOUTHWEST WISCONSIN.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

RIECK

WEATHER.GOV/LACROSSE
11 follow-up statements
000 
WWUS43 KARX 111331
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
731 AM CST MON FEB 11 2008

...ACCUMULATING SNOW RETURNS TODAY AND TONIGHT...

.A FEW LIGHT SNOW SHOWERS OR FLURRIES WILL BE FOUND ACROSS PARTS
OF THE LOCAL AREA THIS MORNING...MOSTLY WEST OF THE MISSISSIPPI
RIVER. ACCUMULATIONS...IF ANY...WILL BE UNDER 1/2 INCH. THE SNOW
WILL START TO BECOME MORE WIDESPREAD THIS AFTERNOON...OVERSPREADING
THE ENTIRE AREA BY THIS EVENING. FLUFFY ACCUMULATIONS OF 3 TO 6
INCHES ARE EXPECTED BY TUESDAY MORNING. SOME LOCALLY HIGHER
AMOUNTS WILL BE POSSIBLE ACROSS PORTIONS OF NORTHEAST IOWA AND
SOUTHWEST WISCONSIN.

TRAVEL COULD BECOME HAZARDOUS TONIGHT AS THE MAIN AREAS OF SNOW
MOVE IN.

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ032>034-
041>044-053>055-061-112145-
/O.CON.KARX.SN.Y.0004.080211T2100Z-080212T1200Z/
MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE-
CLAYTON-WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON-
BUFFALO-TREMPEALEAU-JACKSON-LA CROSSE-MONROE-JUNEAU-ADAMS-VERNON-
CRAWFORD-RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...CHARLES CITY...
OELWEIN...ROCHESTER...WINONA...AUSTIN...BLACK RIVER FALLS...
LA CROSSE...SPARTA/TOMAH...MAUSTON...VIROQUA...PRAIRIE DU CHIEN...
RICHLAND CENTER...PLATTEVILLE
731 AM CST MON FEB 11 2008

...SNOW ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
6 AM CST TUESDAY...

A SNOW ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
6 AM CST TUESDAY. 

SNOWFALL OF 3 TO 6 INCHES IS EXPECTED...WITH LOCALLY HIGHER
AMOUNTS POSSIBLE OVER NORTHEAST IOWA AND SOUTHWEST WISCONSIN. THE
BULK OF THE ACCUMULATING SNOWS WILL FALL TONIGHT.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

RIECK

WEATHER.GOV/LACROSSE
000 
WWUS43 KARX 111611
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
1011 AM CST MON FEB 11 2008

...ACCUMULATING SNOW RETURNS TODAY AND TONIGHT...

.PERIODS OF LIGHT SNOW WILL OCCUR ACROSS PARTS OF THE LOCAL AREA
THIS MORNING...MOSTLY WEST OF THE MISSISSIPPI RIVER. ACCUMULATIONS
COULD BE UP TO 1 TO 2 INCHES. THE SNOW WILL START TO BECOME MORE
WIDESPREAD THIS AFTERNOON...OVERSPREADING THE ENTIRE AREA BY THIS
EVENING.

FLUFFY ACCUMULATIONS OF 3 TO 6 INCHES ARE EXPECTED BY TUESDAY
MORNING. SOME LOCALLY HIGHER AMOUNTS WILL BE POSSIBLE ACROSS
PORTIONS OF NORTHEAST IOWA AND SOUTHWEST WISCONSIN. IF
TRAVELING...BE ALERT FOR SLIPPERY CONDITIONS ON ROADS AND BRIDGES.

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ032>034-
041>044-053>055-061-120015-
/O.CON.KARX.SN.Y.0004.080211T2100Z-080212T1200Z/
MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE-
CLAYTON-WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON-
BUFFALO-TREMPEALEAU-JACKSON-LA CROSSE-MONROE-JUNEAU-ADAMS-VERNON-
CRAWFORD-RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...CHARLES CITY...
OELWEIN...ROCHESTER...WINONA...AUSTIN...BLACK RIVER FALLS...
LA CROSSE...SPARTA/TOMAH...MAUSTON...VIROQUA...PRAIRIE DU CHIEN...
RICHLAND CENTER...PLATTEVILLE
1011 AM CST MON FEB 11 2008

...SNOW ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
6 AM CST TUESDAY...

A SNOW ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
6 AM CST TUESDAY.

SNOW IS EXPECTED THIS MORNING MAINLY WEST OF THE MISSISSIPPI RIVER
ACROSS PARTS OF SOUTHEAST MINNESOTA AND NORTHEAST IOWA. A BAND OF
HEAVIER SNOW IS EXPECTED ALONG AND SOUTH OF A LINE FROM AUSTIN
MINNESOTA TO DECORAH IOWA TO LANCASTER WISCONSIN...WITH
ACCUMULATIONS OF AS MUCH AS 1 TO 2 INCHES.

ADDITIONAL SNOW SHOULD MOVE IN THIS AFTERNOON AND TONIGHT.
SNOWFALL OF 3 TO 6 INCHES IS EXPECTED...WITH LOCALLY HIGHER
AMOUNTS POSSIBLE OVER NORTHEAST IOWA AND SOUTHWEST WISCONSIN. THE
BULK OF THIS ACCUMULATING SNOW WILL FALL TONIGHT.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

WEATHER.GOV/LACROSSE

THOMPSON
000 
WWUS43 KARX 111808
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
1208 PM CST MON FEB 11 2008

...ACCUMULATING SNOW RETURNS TODAY AND TONIGHT...

.AN UPPER LEVEL DISTURBANCE SHOULD BRING MORE SNOW THIS
AFTERNOON...MAINLY ALONG AND WEST OF THE MISSISSIPPI RIVER.
SNOW SHOULD OVERSPREAD THE ENTIRE AREA BY THIS EVENING.

FLUFFY ACCUMULATIONS OF 3 TO 6 INCHES ARE EXPECTED BY TUESDAY
MORNING. SOME LOCALLY HIGHER AMOUNTS WILL BE POSSIBLE ACROSS
PORTIONS OF NORTHEAST IOWA AND SOUTHWEST WISCONSIN. IF
TRAVELING...BE ALERT FOR SLIPPERY CONDITIONS ON ROADS AND
BRIDGES.

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ032>034-
041>044-053>055-061-120215-
/O.CON.KARX.SN.Y.0004.080211T2100Z-080212T1200Z/
MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE-
CLAYTON-WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON-
BUFFALO-TREMPEALEAU-JACKSON-LA CROSSE-MONROE-JUNEAU-ADAMS-VERNON-
CRAWFORD-RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...CHARLES CITY...
OELWEIN...ROCHESTER...WINONA...AUSTIN...BLACK RIVER FALLS...
LA CROSSE...SPARTA/TOMAH...MAUSTON...VIROQUA...PRAIRIE DU CHIEN...
RICHLAND CENTER...PLATTEVILLE
1208 PM CST MON FEB 11 2008

...SNOW ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
6 AM CST TUESDAY...

A SNOW ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
6 AM CST TUESDAY. 

ADDITIONAL SNOW SHOULD MOVE IN THIS AFTERNOON...MAINLY IN AREAS
ALONG AND WEST OF THE MISSISSIPPI RIVER...THEN OVERSPREAD THE
ENTIRE AREA TONIGHT. SNOWFALL OF 3 TO 6 INCHES IS EXPECTED...WITH
LOCALLY HIGHER AMOUNTS POSSIBLE OVER NORTHEAST IOWA AND SOUTHWEST
WISCONSIN. THE BULK OF THIS ACCUMULATING SNOW WILL FALL TONIGHT.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

WEATHER.GOV/LACROSSE

THOMPSON
000 
WWUS43 KARX 111951
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
151 PM CST MON FEB 11 2008

...ACCUMULATING SNOW RETURNS TODAY AND TONIGHT...

.AN UPPER LEVEL DISTURBANCE SHOULD BRING MORE SNOW THIS
AFTERNOON...MAINLY ALONG AND WEST OF THE MISSISSIPPI RIVER. SNOW
SHOULD OVERSPREAD THE ENTIRE AREA BY THIS EVENING.

FLUFFY ACCUMULATIONS OF 3 TO 6 INCHES ARE EXPECTED BY TUESDAY
MORNING. SOME LOCALLY HIGHER AMOUNTS WILL BE POSSIBLE ACROSS
PORTIONS OF NORTHEAST IOWA AND SOUTHWEST WISCONSIN. IF
TRAVELING...BE ALERT FOR SLIPPERY CONDITIONS ON ROADS AND
BRIDGES.

MNZ079-WIZ032>034-112100-
/O.CAN.KARX.SN.Y.0004.080211T2100Z-080212T1200Z/
WABASHA-BUFFALO-TREMPEALEAU-JACKSON-
INCLUDING THE CITY OF...BLACK RIVER FALLS
151 PM CST MON FEB 11 2008

...SNOW ADVISORY IS CANCELLED...

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

EVEN THOUGH SNOW IS EXPECTED TONIGHT INTO TUESDAY...ACCUMULATIONS
WILL NOT REACH THE AMOUNTS AS INDICATED IN PREVIOUS FORECASTS.

$$

IAZ008>011-018-019-029-030-MNZ086-087-094-095-WIZ054-061-120400-
/O.EXT.KARX.SN.Y.0004.080211T2100Z-080212T1800Z/
MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE-
CLAYTON-DODGE-OLMSTED-MOWER-FILLMORE-CRAWFORD-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...CHARLES CITY...
OELWEIN...ROCHESTER...AUSTIN...PRAIRIE DU CHIEN...PLATTEVILLE
151 PM CST MON FEB 11 2008

...SNOW ADVISORY NOW IN EFFECT UNTIL 12 PM CST TUESDAY...

THE SNOW ADVISORY IS NOW IN EFFECT UNTIL 12 PM CST TUESDAY. 

ADDITIONAL SNOW SHOULD MOVE IN THIS AFTERNOON...MAINLY IN AREAS
ALONG AND WEST OF THE MISSISSIPPI RIVER...THEN OVERSPREAD THE
ENTIRE AREA TONIGHT. SNOWFALL OF 3 TO 6 INCHES IS EXPECTED...WITH
LOCALLY HIGHER AMOUNTS POSSIBLE OVER NORTHEAST IOWA AND SOUTHWEST
WISCONSIN. THE BULK OF THIS ACCUMULATING SNOW WILL FALL TONIGHT.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

MNZ088-096-WIZ041>044-053-055-120400-
/O.EXT.KARX.SN.Y.0004.080212T0000Z-080212T1800Z/
WINONA-HOUSTON-LA CROSSE-MONROE-JUNEAU-ADAMS-VERNON-RICHLAND-
INCLUDING THE CITIES OF...WINONA...LA CROSSE...SPARTA/TOMAH...
MAUSTON...VIROQUA...RICHLAND CENTER
151 PM CST MON FEB 11 2008

...SNOW ADVISORY NOW IN EFFECT FROM 6 PM THIS EVENING TO 12 PM
CST TUESDAY...

THE SNOW ADVISORY IS NOW IN EFFECT FROM 6 PM THIS EVENING TO
12 PM CST TUESDAY. 

SNOW SHOULD MOVE IN THIS EVENING...THEN OVERSPREAD THE ENTIRE
AREA TONIGHT. SNOWFALL OF 3 TO 6 INCHES IS EXPECTED...WITH LOCALLY
HIGHER AMOUNTS POSSIBLE OVER SOUTHWEST WISCONSIN. THE BULK OF THIS
ACCUMULATING SNOW WILL FALL TONIGHT.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

WEATHER.GOV/LACROSSE

THOMPSON
000 
WWUS43 KARX 112150
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
350 PM CST MON FEB 11 2008

...ACCUMULATING SNOW TONIGHT INTO TUESDAY MORNING...

.AN UPPER LEVEL DISTURBANCE SHOULD BRING MORE SNOW TONIGHT TO
PARTS OF THE UPPER MISSISSIPPI VALLEY. THIS SYSTEM IS EXPECTED TO
EXIT THE AREA TUESDAY MORNING...TAKING THE SNOW WITH IT. 

IAZ008>011-018-019-029-030-MNZ086-087-094-095-WIZ054-061-120600-
/O.CON.KARX.SN.Y.0004.000000T0000Z-080212T1800Z/
MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE-
CLAYTON-DODGE-OLMSTED-MOWER-FILLMORE-CRAWFORD-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...CHARLES CITY...
OELWEIN...ROCHESTER...AUSTIN...PRAIRIE DU CHIEN...PLATTEVILLE
350 PM CST MON FEB 11 2008

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 12 PM CST TUESDAY...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 12 PM CST TUESDAY. 

SNOW SHOULD MOVE IN THROUGH 9 PM...OVERSPREADING THE ENTIRE AREA
TONIGHT. SNOWFALL OF 2 TO 4 INCHES IS EXPECTED...WITH LOCALLY
HIGHER AMOUNTS POSSIBLE OVER NORTHEAST IOWA AND SOUTHWEST
WISCONSIN. THE BULK OF THIS ACCUMULATING SNOW WILL FALL TONIGHT.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

MNZ088-096-WIZ041>044-053-055-120600-
/O.CON.KARX.SN.Y.0004.080212T0000Z-080212T1800Z/
WINONA-HOUSTON-LA CROSSE-MONROE-JUNEAU-ADAMS-VERNON-RICHLAND-
INCLUDING THE CITIES OF...WINONA...LA CROSSE...SPARTA/TOMAH...
MAUSTON...VIROQUA...RICHLAND CENTER
350 PM CST MON FEB 11 2008

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 12 PM CST TUESDAY...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 12 PM CST TUESDAY. 

SNOW SHOULD MOVE IN BETWEEN 6 PM AND 9 PM MAINLY IN AREAS NEAR
THE MISSISSIPPI RIVER...THEN OVERSPREAD THE ENTIRE AREA TONIGHT.
SNOWFALL OF 2 TO 4 INCHES IS EXPECTED...WITH LOCALLY HIGHER
AMOUNTS POSSIBLE OVER SOUTHWEST WISCONSIN. THE BULK OF THIS
ACCUMULATING SNOW WILL FALL TONIGHT.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

WEATHER.GOV/LACROSSE

THOMPSON
000 
WWUS43 KARX 120122
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
722 PM CST MON FEB 11 2008

...SNOW BEGINNING TO SPREAD INTO THE AREA...

.SNOW WAS BEGINNING TO SPREAD INTO THE AREA THIS EVENING AHEAD OF
AN APPROACHING UPPER LEVEL DISTURBANCE. THE SNOW WILL CONTINUE TO
GRADUALLY SPREAD OVER THE AREA THROUGH THE NIGHT. MOST LOCATIONS
ALONG AND SOUTH OF INTERSTATE 90 WILL SEE SOME ACCUMULATIONS. THE
HIGHEST TOTALS...AROUND 4 INCHES...SHOULD FALL SOUTH OF THE IOWA
MINNESOTA BORDER INTO ADJACENT SOUTHWEST WISCONSIN. THE SNOW IS
EXPECTED TO END TUESDAY MORNING ONCE THE UPPER LEVEL DISTURBANCE
MOVES PAST THE AREA.

IAZ008>011-018-019-029-030-MNZ086>088-094>096-WIZ041>044-053>055-
061-120930-
/O.CON.KARX.SN.Y.0004.000000T0000Z-080212T1800Z/
MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE-
CLAYTON-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON-LA CROSSE-
MONROE-JUNEAU-ADAMS-VERNON-CRAWFORD-RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...CHARLES CITY...
OELWEIN...ROCHESTER...WINONA...AUSTIN...LA CROSSE...
SPARTA/TOMAH...MAUSTON...VIROQUA...PRAIRIE DU CHIEN...
RICHLAND CENTER...PLATTEVILLE
722 PM CST MON FEB 11 2008

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 12 PM CST TUESDAY...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 12 PM CST TUESDAY. 

SNOW WILL CONTINUE TO SPREAD ACROSS THE AREA THIS EVENING. BY
MIDNIGHT LOOK FOR ACCUMULATIONS OF A HALF INCH UP TO 2 INCHES FOR
AREAS SOUTH OF INTERSTATE 90. THE SNOW IS EXPECTED TO CONTINUE
FALLING OVERNIGHT INTO TUESDAY MORNING WITH TOTAL ACCUMULATIONS OF
2 TO 4 INCHES. THE HIGHEST TOTALS SHOULD OCCUR SOUTH OF THE IOWA
MINNESOTA BORDER INTO ADJACENT SOUTHWEST WISCONSIN. THE BULK OF
THIS ACCUMULATING SNOW WILL FALL TONIGHT.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

04

WEATHER.GOV/LACROSSE
000 
WWUS43 KARX 120517
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
1117 PM CST MON FEB 11 2008

...SNOW CONTINUES TO SPREAD INTO THE AREA...

.SNOW CONTINUED TO SPREAD INTO THE AREA THIS EVENING AHEAD OF AN
APPROACHING UPPER LEVEL DISTURBANCE. THE SNOW WILL GRADUALLY
SPREAD OVER THE AREA THROUGH THE NIGHT AND MOST LOCATIONS ALONG
AND SOUTH OF INTERSTATE 90 WILL SEE SOME SNOW BY 3 OR 4 AM.
ADDITIONAL ACCUMULATIONS THROUGH 4 AM WILL RANGE FROM LESS THAN AN
INCH UP TO 2 INCHES. TOTAL ACCUMULATIONS THROUGH TUESDAY MORNING
WILL RANGE FROM 2 TO 4 INCHES WITH THE HIGHER AMOUNTS MAINLY SOUTH
OF THE IOWA MINNESOTA BORDER INTO ADJACENT PORTIONS OF SOUTHWEST
WISCONSIN. THE SNOW IS EXPECTED TO END TUESDAY MORNING ONCE THE
UPPER LEVEL DISTURBANCE MOVES PAST THE AREA.

IAZ008>011-018-019-029-030-MNZ086>088-094>096-WIZ041>044-053>055-
061-121330-
/O.CON.KARX.SN.Y.0004.000000T0000Z-080212T1800Z/
MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE-
CLAYTON-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON-LA CROSSE-
MONROE-JUNEAU-ADAMS-VERNON-CRAWFORD-RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...CHARLES CITY...
OELWEIN...ROCHESTER...WINONA...AUSTIN...LA CROSSE...
SPARTA/TOMAH...MAUSTON...VIROQUA...PRAIRIE DU CHIEN...
RICHLAND CENTER...PLATTEVILLE
1117 PM CST MON FEB 11 2008

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 12 PM CST TUESDAY...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 12 PM CST TUESDAY. 

SNOW WILL CONTINUE TO SPREAD ACROSS THE AREA TONIGHT.
ACCUMULATIONS BY 4 AM SHOULD RANGE FROM LESS THAN AN INCH UP TO 3
INCHES FOR PORTIONS OF NORTHEAST IOWA. THE SNOW WILL CONTINUE TO
FALL INTO TUESDAY MORNING WITH TOTAL ACCUMULATIONS OF 2 TO 4
INCHES. THE HIGHEST TOTALS SHOULD OCCUR SOUTH OF THE IOWA
MINNESOTA BORDER INTO ADJACENT PORTIONS OF SOUTHWEST WISCONSIN. THE
BULK OF THIS ACCUMULATING SNOW WILL FALL TONIGHT.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

WEATHER.GOV/LACROSSE
000
WWUS43 KARX 120900
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
300 AM CST TUE FEB 12 2008

...SNOW CONTINUES OVER THE AREA...

.SNOW CONTINUED TO FALL ACROSS THE ADVISORY AREA EARLY THIS
MORNING. SNOWFALL AMOUNTS SO FAR HAVE RANGED FROM ONE TO THREE
INCHES. THE SNOW WILL CONTINUE TO FALL THROUGH THE MORNING
COMMUTE...WITH MOST OF THE ACCUMULATIONS SOUTH OF INTERSTATE 90.
ADDITIONAL ACCUMULATIONS OF 1 TO 2 INCHES IS STILL LIKELY ACROSS
THE ADVISORY AREA THIS MORNING.

IAZ008>011-018-019-029-030-MNZ086>088-094>096-WIZ041>044-053>055-
061-121700-
/O.CON.KARX.SN.Y.0004.000000T0000Z-080212T1800Z/
MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE-
CLAYTON-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON-LA CROSSE-
MONROE-JUNEAU-ADAMS-VERNON-CRAWFORD-RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...CHARLES CITY...
OELWEIN...ROCHESTER...WINONA...AUSTIN...LA CROSSE...
SPARTA/TOMAH...MAUSTON...VIROQUA...PRAIRIE DU CHIEN...
RICHLAND CENTER...PLATTEVILLE
300 AM CST TUE FEB 12 2008

...SNOW ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY. 

SNOW WILL CONTINUE ACROSS THE AREA THROUGH THE MORNING COMMUTE.
ADDITIONAL ACCUMULATIONS OF 1 TO 2 INCHES IS LIKELY...GENERALLY
SOUTH OF INTERSTATE 90. THE HIGHEST TOTALS SHOULD OCCUR SOUTH OF THE IOWA
MINNESOTA BORDER INTO ADJACENT PORTIONS OF SOUTHWEST WISCONSIN. SOME 
HEAVIER BANDS OF SNOW IN NORTHEAST IOWA AND SOUTHWEST WISCONSIN
WILL REDUCE VISIBILITIES TO AROUND A MILE AT TIMES.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

RABERDING

WEATHER.GOV/LACROSSE
000 
WWUS43 KARX 121213
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
613 AM CST TUE FEB 12 2008

...SNOW CONTINUES OVER THE AREA...

.SNOW CONTINUED TO FALL ACROSS THE ADVISORY AREA EARLY THIS
MORNING. SNOWFALL AMOUNTS SO FAR HAVE RANGED AROUND AN INCH FROM
ROCHESTER TO LA CROSSE...WITH 3 TO 5 INCHES OVER PORTIONS OF
NORTHEAST IOWA. THE SNOW WILL CONTINUE TO FALL THROUGH THE MORNING
COMMUTE...WITH MOST OF THE ACCUMULATION SOUTH OF INTERSTATE 90.
ADDITIONAL ACCUMULATIONS AROUND AN INCH...WITH LOCAL 2 INCH
AMOUNTS ARE STILL POSSIBLE ACROSS THE ADVISORY AREA THIS MORNING.

IAZ008>011-018-019-029-030-MNZ086>088-094>096-WIZ041>044-053>055-
061-121800-
/O.CON.KARX.SN.Y.0004.000000T0000Z-080212T1800Z/
MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE-
CLAYTON-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON-LA CROSSE-
MONROE-JUNEAU-ADAMS-VERNON-CRAWFORD-RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...CHARLES CITY...
OELWEIN...ROCHESTER...WINONA...AUSTIN...LA CROSSE...
SPARTA/TOMAH...MAUSTON...VIROQUA...PRAIRIE DU CHIEN...
RICHLAND CENTER...PLATTEVILLE
613 AM CST TUE FEB 12 2008

...SNOW ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY. 

SNOW WILL CONTINUE ACROSS THE AREA THROUGH THE MORNING COMMUTE.
ADDITIONAL ACCUMULATIONS OF 1 TO 2 INCHES IS LIKELY...GENERALLY
SOUTH OF INTERSTATE 90. THE HIGHEST TOTALS SHOULD OCCUR ALONG THE
IOWA MINNESOTA BORDER INTO ADJACENT PORTIONS OF SOUTHWEST
WISCONSIN. SOME HEAVIER BANDS OF SNOW IN NORTHEAST IOWA AND
SOUTHWEST WISCONSIN WILL REDUCE VISIBILITIES TO AROUND A MILE AT
TIMES.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

RABERDING

WEATHER.GOV/LACROSSE
000 
WWUS43 KARX 121539
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
939 AM CST TUE FEB 12 2008

...SNOW CONTINUES OVER THE AREA...

.AN UPPER LEVEL DISTURBANCE WAS TRACKING ACROSS IOWA AND MINNESOTA
THIS MORNING. THIS WAS CONTINUING TO PRODUCE SNOW ACROSS THE
ADVISORY AREA THIS MORNING. SNOWFALL AMOUNTS SO FAR HAVE RANGED
FROM AROUND AN INCH ALONG THE INTERSTATE 90 CORRIDOR...WITH 2 TO
LOCALLY UP TO 6 INCHES ACROSS PORTIONS OF NORTHEAST IOWA. THE SNOW WILL
CONTINUE TO FALL THROUGH THIS MORNING...WITH THE BULK OF THE
ACCUMULATING SNOW ALONG AND SOUTH OF INTERSTATE 90. ADDITIONAL
ACCUMULATIONS OF AN INCH TO 2 INCHES ARE STILL POSSIBLE ACROSS
THE ADVISORY AREA THIS MORNING.

IAZ008>011-018-019-029-030-MNZ086>088-094>096-WIZ041>044-053>055-
061-121800-
/O.CON.KARX.SN.Y.0004.000000T0000Z-080212T1800Z/
MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE-
CLAYTON-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON-LA CROSSE-
MONROE-JUNEAU-ADAMS-VERNON-CRAWFORD-RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...CHARLES CITY...
OELWEIN...ROCHESTER...WINONA...AUSTIN...LA CROSSE...
SPARTA/TOMAH...MAUSTON...VIROQUA...PRAIRIE DU CHIEN...
RICHLAND CENTER...PLATTEVILLE
939 AM CST TUE FEB 12 2008

...SNOW ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY. 

SNOW WILL CONTINUE ACROSS THE AREA THROUGH THIS MORNING. ADDITIONAL
ACCUMULATIONS OF 1 TO 2 INCHES IS LIKELY...GENERALLY ALONG AND SOUTH
OF INTERSTATE 90. THE HIGHEST TOTALS SHOULD OCCUR ALONG THE IOWA
MINNESOTA BORDER INTO ADJACENT PORTIONS OF SOUTHWEST WISCONSIN.
SOME HEAVIER BANDS OF SNOW IN NORTHEAST IOWA AND SOUTHWEST
WISCONSIN WILL LOCALLY REDUCE VISIBILITIES BELOW A MILE AT TIMES.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$


DAS
WEATHER.GOV/LACROSSE
000 
WWUS43 KARX 121740
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
1140 AM CST TUE FEB 12 2008

...SNOW WINDING DOWN ACROSS THE AREA...

.RADAR AND SURFACE OBSERVATIONS ACROSS THE AREA INDICATE THAT THE
SNOW IS TAPERING OFF FROM WEST TO EAST. THE LIGHT SNOW WILL CONTINUE TO
TAPER OFF TO FLURRIES THROUGH THIS AFTERNOON WITH ADDITIONAL SNOW
ACCUMULATIONS OF ONLY A HALF INCH OR LESS. THIS WILL OCCUR MAINLY
EAST OF THE MISSISSIPPI RIVER. THEREFORE...THE SNOW ADVISORY WILL
BE ALLOWED TO EXPIRE AT NOON TODAY.

IAZ008>011-018-019-029-030-MNZ086>088-094>096-WIZ041>044-053>055-
061-121845-
/O.EXP.KARX.SN.Y.0004.000000T0000Z-080212T1800Z/
MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE-
CLAYTON-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON-LA CROSSE-
MONROE-JUNEAU-ADAMS-VERNON-CRAWFORD-RICHLAND-GRANT-
INCLUDING THE CITIES OF...DECORAH...WAUKON...CHARLES CITY...
OELWEIN...ROCHESTER...WINONA...AUSTIN...LA CROSSE...
SPARTA/TOMAH...MAUSTON...VIROQUA...PRAIRIE DU CHIEN...
RICHLAND CENTER...PLATTEVILLE
1140 AM CST TUE FEB 12 2008

...SNOW ADVISORY WILL EXPIRE AT NOON CST TODAY...

THE SNOW ADVISORY WILL EXPIRE AT NOON CST TODAY. 

RADAR AND SURFACE OBSERVATIONS ACROSS THE AREA INDICATE THAT THE
SNOW IS TAPERING OFF. THE LIGHT SNOW WILL CONTINUE TO TAPER OFF TO
FLURRIES THROUGH THIS AFTERNOON WITH ADDITIONAL SNOW ACCUMULATIONS
OF A HALF INCH OR LESS. THIS WILL OCCUR MAINLY EAST OF THE
MISSISSIPPI RIVER. THEREFORE...THE SNOW ADVISORY WILL BE ALLOWED
TO EXPIRE AT NOON TODAY.

$$

DAS

WEATHER.GOV/LACROSSE

What forecasters said that day

The local office's own words before this snow advisory 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 snow advisory went out at Feb 10, 5:30 PM CST, 9 hours 22 minutes earlier.

Area forecast discussion, Feb 10, 5:30 PM CST, 9 hours 22 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LA CROSSE WI
530 PM CST SUN FEB 10 2008

.UPDATE...

AS HIGH PRESSURE FROM THE EASTERN DAKOTAS CONTINUES TO PUSH EAST
THIS EVENING...THE WIND SPEEDS WILL CONTINUE TO DIMINISH AND WILL
DROP BELOW 10 MPH FOR THE ENTIRE AREA BY 02Z. MAY STILL BE SOME
LOCALIZED AREAS THAT MEET WIND CHILL ADVISORY CRITERIA FOR A SHORT
WHILE...BUT IT WILL NOT BE WIDESPREAD ENOUGH TO CONTINUE THE WIND
CHILL ADVISORY PAST 00Z. WILL LET THE WIND CHILL ADVISORY EXPIRE
AS SCHEDULED AT 00Z.

04

&&

.PREV DISCUSSION... /ISSUED 344 PM CST SUN FEB 10 2008/

SHORT TERM...TONIGHT THROUGH TUESDAY NIGHT

WIND CHILL TONIGHT...AND POSSIBLY ADVISORY CRITERIA SNOW ON MONDAY
AND MONDAY NIGHT ARE THE MAIN CONCERNS WITH THIS PART OF THE FORECAST.

WITH STARTING OUT SO COLD AND A SLOW DECOUPLE OF THE BOUNDARY
LAYER WINDS...TEMPERATURES SHOULD RAPIDLY DROP THIS EVENING AND
EARLY OVERNIGHT...THEN THE TEMPERATURES WILL SLOWLY MODERATE
OVERNIGHT AS WARM AIR ADVECTION AND THICKER CLOUDS MOVE INTO THE
REGION. LOW TEMPERATURES WILL LIKELY RANGE FROM 5 TO 10 BELOW IN
NORTHEAST IOWA...TO 15 TO 20 BELOW IN NORTH CENTRAL AND CENTRAL
WISCONSIN. WITH TEMPERATURES THIS COLD...IT MAKES IT RATHER EASY
TO REACH WIND CHILLS OF AT LEAST 20 BELOW. HOWEVER SINCE WIND IS
ALSO A CRITERIA AND IT WILL RAPIDLY DROPPING THIS EVENING AND
OVERNIGHT...THE DECISION ON HOW LONG TO KEEP THE WIND CHILL
ADVISORY IS VERY COMPLICATED. FOR THE TIME BEING...WE DECIDED TO
JUST KEEP IT GOING UNTIL 6 PM THIS EVENING. THIS WILL ALLOW THE
EVENING SHIFT SOME TIME TO EVALUATE HOW FAST THE WINDS WILL DROP
TONIGHT.

THE FEBRUARY 10TH 12Z AND 18Z CONTINUE TO SHOW THAT A STRONG
500 MB SHORT WAVE TROUGH WILL BE MOVING INTO THE NORTHERN PLAINS
ON MONDAY...AND THROUGH THE UPPER MISSISSIPPI RIVER VALLEY ON
MONDAY NIGHT AND TUESDAY. THIS SYSTEM IS CURRENTLY LOOKS RATHER
IMPRESSIVE AS IT SPINS OFF THE COAST OF BRITISH COLUMBIA. AS THIS
SYSTEM APPROACHES AND MOVED THROUGH THE REGION...MODERATE TO STRONG
FRONTOGENETIC FORCING DEVELOPS BETWEEN 850 AND 500 MB. BY FAR THE
STRONGEST SIGNAL OCCURS...IN THE 700 TO 600 MB LAYER. MODERATE
ISENTROPIC LIFT WAS NOTED AT THE 275K SURFACE WHICH CORRESPONDS TO
THE LAYER BETWEEN 750 MB AND 825 MB. THE MODELS CONTINUE TO SHOW
THAT THE PRECIPITATION TOTALS WILL RANGE ANYWHERE FROM 0.15 TO
0.30 INCHES FROM MONDAY INTO MONDAY NIGHT. THESE PRECIPITATION
TOTALS HAVE SHOWN UP CONSISTENTLY DURING THE LAST 8 MODEL RUNS.
TAKING A RATHER CONSERVATIVE SNOW TO WATER LIQUID EQUIVALENT...
I GET SNOW TOTALS OF 3 TO 7 INCHES. CONSIDERING THE VERY COLD AIR
MASS...THESE LIQUID WATER TO SNOW RATIOS MAY BE TOO LOW. AS I SAID
YESTERDAY...THIS SYSTEM REMINDS ME A LOT LIKE THE JANUARY 21-22
EVENT WHICH PRODUCED THE 8.5 INCHES IN LA CROSSE. THE ONE
DIFFERENCE THAT I DO SEE IS THAT SYSTEM SHOWED A MUCH DEEPER -15C
GROWTH REGION. I REALLY WANTED TO GO WITH A SNOW ADVISORY ON THIS
SHIFT...BUT FOR COLLABORATION REASONS...I DID NOT ISSUE ONE. IF
THIS TREND CONTINUES...THE MIDNIGHT SHIFT WILL LIKELY HAVE TO
ISSUE ONE.

ON TUESDAY...IT APPEARS THAT WE WILL ONLY BE ABLE TO MIX UP 900 MB
AT MOST. THIS RESULT IN MAXIMUM TEMPERATURES BETWEEN 9 AND 14F.
MEANWHILE THE GFS IS SLIGHTLY WARMER WITH MAXIMUM TEMPERATURES
RANGING FROM 16F TO 21F. I DECIDED TO GO WITH A BLEND OF THESE
TOO...WHICH IS ACTUALLY VERY CLOSE TO THE 09Z SREF.

LONG TERM...WEDNESDAY THROUGH SUNDAY

ANOTHER LOW PRESSURE SYSTEM WILL PROVIDE ACCUMULATING SNOW TO THE
AREA FROM WEDNESDAY NIGHT INTO THURSDAY NIGHT. THE MODELS CONTINUE
TO STRUGGLE A BIT ON THE EXACT LOCATION OF THE HEAVY SNOW. THE 12Z
RUNS CAME IN A BIT FURTHER NORTH THAN 12Z SATURDAY AND 00Z SUNDAY
MODELS. EVEN THOUGH THERE IS SOME DISPARITIES IN THE MODELS...IT
STILL LOOKS LIKE THE ENTIRE AREA WILL SEE ACCUMULATING SNOW. AS A
RESULT...I RAISED THE SNOW PROBABILITIES UP FURTHER DURING THIS
TIME PERIOD. THE SYSTEM ASSOCIATED WITH THIS SNOW IS CURRENTLY
LOCATED SOUTH OF THE ALEUTIAN ISLANDS...AND IT LOOKS RATHER
IMPRESSIVE ON THE WATER VAPOR IMAGERY. THIS SYSTEM WILL LIKELY
REQUIRE A WINTER STORM WATCH LATER ON THIS WEEK.

AVIATION...TONIGHT THROUGH MONDAY NIGHT

HIGH PRESSURE DRIFTING ACROSS THE AREA TONIGHT WILL RESULT IN LIGHT
WINDS AND VFR CONDITIONS. OVERNIGHT...HIGH CLOUDS WILL START
SPREADING AHEAD OF A SHORTWAVE TROUGH ADVANCING EASTWARD FROM THE
NORTHERN PLAINS. LOWERING CEILINGS CAN BE EXPECTED ON MONDAY...WITH
SNOW DEVELOPING MAINLY FROM KLSE TO POINTS SOUTH AND WEST. BASED ON
DETERMINISTIC AND PROBABILISTIC FORECAST DATA...HIGHEST POTENTIAL
FOR IFR CONDITIONS IN SNOW SHOULD OCCUR AFTER 18Z MONDAY AND
CONTINUE THROUGH MONDAY NIGHT.

&&

.ARX WATCHES/WARNINGS/ADVISORIES...
WI...NONE.
MN...NONE.
IA...NONE.

&&

SHORT AND LONG TERM - BOYNE
AVIATION - ST
Hazardous weather outlook, Feb 10, 6:00 PM CST, 8 hours 52 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LA CROSSE WI
600 PM CST SUN FEB 10 2008

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-032>034-
041>044-053>055-061-111200-
ADAMS-ALLAMAKEE-BUFFALO-CHICKASAW-CLARK-CLAYTON-CRAWFORD-DODGE-
FAYETTE-FILLMORE-FLOYD-GRANT-HOUSTON-HOWARD-JACKSON-JUNEAU-LA CROSSE-
MITCHELL-MONROE-MOWER-OLMSTED-RICHLAND-TAYLOR-TREMPEALEAU-VERNON-
WABASHA-WINNESHIEK-WINONA-
600 PM CST SUN FEB 10 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF NORTHEAST IOWA...
SOUTHEAST MINNESOTA...AND SOUTHWEST INTO CENTRAL WISCONSIN.

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

AN UPPER AIR DISTURBANCE WILL BRING SNOW BACK TO THE REGION FOR
MONDAY AND MONDAY NIGHT. SNOW ACCUMULATIONS OF 3 TO 6 INCHES APPEAR
PROBABLE FOR AREAS GENERALLY WEST OF INTERSTATE 94...WITH LOCALLY
HIGHER AMOUNTS NEAR 7 INCHES POSSIBLE OVER PARTS OF NORTHEAST IOWA.

ON THURSDAY...LOW PRESSURE ADVANCING ACROSS THE REGION SHOULD PROVIDE
THE FOCUS FOR ANOTHER ROUND OF SNOW...WHICH COULD PERSIST INTO FRIDAY
MORNING. SEVERAL INCHES OF ACCUMULATION ARE POSSIBLE. WINTER WEATHER
HEADLINES MAY BECOME NECESSARY WITH BOTH AFOREMENTIONED SYSTEMS.

.SPOTTER INFORMATION STATEMENT...

REPORTS OF SNOW ACCUMULATION DURING THE WEEK WOULD BE APPRECIATED.
OTHERWISE...SPOTTER ACTIVATION WILL NOT BE NEEDED.

.EMERGENCY MANAGEMENT COORDINATION...

NO CALL IS SCHEDULED.

04

Nearby

Snow Advisories in Wisconsin, 2008Snow Advisories in Iowa, 2008Snow Advisories in Minnesota, 2008Every snow advisory in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.