Winter Storm Watch 1, NWS La Crosse, WI

630 
WWUS43 KARX 191747
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
1147 AM CST THU JAN 19 2012

...CONDITIONS IMPROVING TODAY BUT LOOK FOR SNOW FRIDAY...

.WIND CHILL TEMPERATURES WILL CONTINUE TO IMPROVE THROUGH THE
AFTERNOON AS THE WINDS DECREASE. A FEW LOCATIONS MAY CONTINUE TO
SEE SOME WIND CHILLS OF 20 TO 25 BELOW EARLY THIS AFTERNOON...BUT
THIS WILL NOT BE WIDESPREAD OR LAST LONG AS HIGH PRESSURE BUILDS
INTO THE AREA.

THE HIGH WILL QUICKLY DEPART THE AREA TONIGHT AS A FAST MOVING
STORM SYSTEM ADVANCES TOWARD THE MIDWEST. THIS STORM SYSTEM WILL
BRING SNOW TO AREA STARTING LATE TONIGHT AND CONTINUING INTO
FRIDAY AFTERNOON. THE HEAVIEST SNOW FROM THIS SYSTEM IS EXPECTED
TO FALL ACROSS NORTHEAST IOWA INTO EXTREME SOUTHWEST WISCONSIN
WHERE A WINTER STORM WATCH REMAINS IN EFFECT FOR FRIDAY AND FRIDAY
EVENING. IT APPEARS THAT WINTER WEATHER ADVISORIES WILL BE NEEDED
FARTHER NORTH INTO PORTIONS OF SOUTHEAST MINNESOTA...WESTERN AND
CENTRAL WISCONSIN.

IAZ008>010-018-019-029-200200-
/O.EXP.KARX.WC.Y.0001.000000T0000Z-120119T1800Z/
/O.CON.KARX.WS.A.0001.120120T1200Z-120121T0600Z/
MITCHELL-HOWARD-WINNESHIEK-FLOYD-CHICKASAW-FAYETTE-
INCLUDING THE CITIES OF...DECORAH...CHARLES CITY...OELWEIN
1147 AM CST THU JAN 19 2012

...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY MORNING
THROUGH FRIDAY EVENING...
...WIND CHILL ADVISORY WILL EXPIRE AT NOON CST TODAY...

* WIND CHILL VALUES WILL CONTINUE TO IMPROVE THROUGH THE AFTERNOON
  AS THE WINDS DIMINISH. ACTUAL AIR TEMPERATURES WILL TOP OUT IN
  THE SINGLE DIGITS ABOVE ZERO.

* SNOWFALL AMOUNTS OF 5 TO 7 INCHES WILL BE POSSIBLE FROM LATE
  TONIGHT THROUGH FRIDAY AFTERNOON AS A FAST MOVING STORM SYSTEM
  MOVES ACROSS THE MIDWEST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$

IAZ011-030-WIZ054-055-061-200200-
/O.EXP.KARX.WC.Y.0001.000000T0000Z-120119T1800Z/
/O.CON.KARX.WS.A.0001.120120T1200Z-120121T0600Z/
ALLAMAKEE-CLAYTON-CRAWFORD-RICHLAND-GRANT-
INCLUDING THE CITIES OF...WAUKON...PRAIRIE DU CHIEN...
RICHLAND CENTER...PLATTEVILLE
1147 AM CST THU JAN 19 2012

...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY MORNING
THROUGH FRIDAY EVENING...
...WIND CHILL ADVISORY WILL EXPIRE AT NOON CST TODAY...

* WIND CHILL VALUES WILL CONTINUE TO IMPROVE THROUGH THE AFTERNOON
  AS THE WINDS DIMINISH. ACTUAL AIR TEMPERATURES WILL TOP OUT IN
  THE SINGLE DIGITS ABOVE ZERO.

* SNOWFALL AMOUNTS OF 5 TO 7 INCHES WILL BE POSSIBLE FROM LATE
  TONIGHT THROUGH FRIDAY AFTERNOON AS A FAST MOVING STORM SYSTEM
  MOVES ACROSS THE MIDWEST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$

MNZ079-086>088-094>096-WIZ017-029-032>034-041>044-053-191900-
/O.EXP.KARX.WC.Y.0001.000000T0000Z-120119T1800Z/
WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON-TAYLOR-CLARK-
BUFFALO-TREMPEALEAU-JACKSON-LA CROSSE-MONROE-JUNEAU-ADAMS-VERNON-
INCLUDING THE CITIES OF...ROCHESTER...WINONA...AUSTIN...MEDFORD...
NEILLSVILLE...BLACK RIVER FALLS...LA CROSSE...SPARTA/TOMAH...
MAUSTON...VIROQUA
1147 AM CST THU JAN 19 2012

...WIND CHILL ADVISORY WILL EXPIRE AT NOON CST TODAY...

WIND CHILL VALUES WILL CONTINUE TO IMPROVE THROUGH THE AFTERNOON
AS THE WINDS DIMINISH. ACTUAL AIR TEMPERATURES WILL TOP OUT IN THE
SINGLE DIGITS ABOVE ZERO WITH PLENTY OF SUNSHINE AS HIGH PRESSURE
BUILDS INTO THE AREA.

$$

04

WEATHER.GOV/LACROSSE

741 
WWUS43 KARX 192056
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
256 PM CST THU JAN 19 2012

...SNOW ON THE WAY FOR FRIDAY...

.SNOWFALL ACCUMULATIONS OF 3 TO 6 INCHES ARE EXPECTED BY LATE
FRIDAY AFTERNOON ALONG AND SOUTH OF INTERSTATE 90. SNOW WILL MOVE
INTO SOUTHEAST MINNESOTA AND NORTHEAST IOWA LATE TONIGHT AND
SPREAD OVER THE REMAINDER OF THE AREA FRIDAY MORNING. THE SNOW
COULD BE HEAVY AT TIMES FRIDAY MORNING BEFORE DIMINISHING LATE
FRIDAY AFTERNOON. THE HIGHEST ACCUMULATIONS ARE EXPECTED TO MAINLY
BE ACROSS NORTHEAST IOWA INTO SOUTHWEST WISCONSIN. A WINTER
WEATHER ADVISORY WILL BE IN EFFECT FROM 3 AM TO 6 PM FRIDAY FOR
LOCATIONS WEST OF THE MISSISSIPPI RIVER AND FROM 6 AM TO 6 PM
FRIDAY EAST OF THE MISSISSIPPI RIVER.

IAZ008>011-018-019-029-030-200500-
/O.UPG.KARX.WS.A.0001.120120T1200Z-120121T0600Z/
/O.NEW.KARX.WW.Y.0003.120120T0900Z-120121T0000Z/
MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE-
CLAYTON-
INCLUDING THE CITIES OF...DECORAH...WAUKON...CHARLES CITY...
OELWEIN
256 PM CST THU JAN 19 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO 6 PM CST
FRIDAY...

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 3 AM TO 6 PM
CST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* SNOW WILL BEGIN MOVING INTO THE AREA LATE TONIGHT WITH THE
  HEAVIEST SNOW EXPECTED TO FALL FRIDAY MORNING.

* STORM TOTAL ACCUMULATIONS OF 4 TO 6 INCHES WILL BE POSSIBLE.

* DURING THE PERIOD OF HEAVIEST SNOW...THE VISIBILITY COULD BE
  REDUCED TO A HALF MILE OR LESS.

* ROADS AROUND THE AREA ARE EXPECTED TO BE SNOW COVERED BY THE
  MORNING COMMUTE FRIDAY. PLAN ON TAKING LONGER TO GET TO WORK OR
  SCHOOL FRIDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.
THE LATEST ROAD CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN
BE OBTAINED BY CALLING 5 1 1.

&&

$$

WIZ054-055-061-200500-
/O.UPG.KARX.WS.A.0001.120120T1200Z-120121T0600Z/
/O.NEW.KARX.WW.Y.0003.120120T1200Z-120121T0000Z/
CRAWFORD-RICHLAND-GRANT-
INCLUDING THE CITIES OF...PRAIRIE DU CHIEN...RICHLAND CENTER...
PLATTEVILLE
256 PM CST THU JAN 19 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TO 6 PM CST
FRIDAY...

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 6 AM TO 6 PM
CST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* SNOW WILL BEGIN MOVING INTO THE AREA EARLY FRIDAY MORNING WITH
  THE HEAVIEST SNOW EXPECTED TO FALL AFTER DAYBREAK.

* STORM TOTAL ACCUMULATIONS OF 4 TO 6 INCHES WILL BE POSSIBLE.

* DURING THE PERIOD OF HEAVIEST SNOW...THE VISIBILITY COULD BE
  REDUCED TO ONE HALF OF A MILE OR LESS.

* ROADS AROUND THE AREA ARE EXPECTED TO BECOME SNOW COVERED BY OR
  DURING THE MORNING COMMUTE FRIDAY. PLAN ON TAKING LONGER TO GET
  TO WORK OR SCHOOL FRIDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.
THE LATEST ROAD CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN
BE OBTAINED BY CALLING 5 1 1.

&&

$$

MNZ086>088-094>096-200500-
/O.NEW.KARX.WW.Y.0003.120120T0900Z-120121T0000Z/
DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON-
INCLUDING THE CITIES OF...ROCHESTER...WINONA...AUSTIN
256 PM CST THU JAN 19 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO 6 PM CST
FRIDAY...

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 3 AM TO 6 PM
CST FRIDAY.

* SNOW WILL BEGIN MOVING INTO THE AREA LATE TONIGHT WITH THE
  HEAVIEST SNOW EXPECTED TO FALL FRIDAY MORNING.

* STORM TOTAL ACCUMULATIONS OF 3 TO 5 INCHES WILL BE POSSIBLE.

* DURING THE PERIOD OF HEAVIEST SNOW...THE VISIBILITY COULD BE
  REDUCED TO ONE HALF OF A MILE OR LESS.

* ROADS AROUND THE AREA ARE EXPECTED TO BE SNOW COVERED BY THE
  MORNING COMMUTE FRIDAY. PLAN ON TAKING LONGER TO GET TO WORK OR
  SCHOOL FRIDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.
THE LATEST ROAD CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN
BE OBTAINED BY CALLING 5 1 1.

&&

$$

WIZ041>044-053-200500-
/O.NEW.KARX.WW.Y.0003.120120T1200Z-120121T0000Z/
LA CROSSE-MONROE-JUNEAU-ADAMS-VERNON-
INCLUDING THE CITIES OF...LA CROSSE...SPARTA/TOMAH...MAUSTON...
VIROQUA
256 PM CST THU JAN 19 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TO 6 PM CST
FRIDAY...

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 6 AM TO 6 PM
CST FRIDAY.

* SNOW WILL BEGIN MOVING INTO THE AREA EARLY FRIDAY MORNING WITH
  THE HEAVIEST SNOW EXPECTED TO FALL AFTER DAYBREAK.

* STORM TOTAL ACCUMULATIONS OF 3 TO 5 INCHES WILL BE POSSIBLE.

* DURING THE PERIOD OF HEAVIEST SNOW...THE VISIBILITY COULD BE
  REDUCED TO ONE HALF OF A MILE OR LESS.

* ROADS AROUND THE AREA ARE EXPECTED TO BECOME SNOW COVERED BY OR
  DURING THE MORNING COMMUTE FRIDAY. PLAN ON TAKING LONGER TO GET
  TO WORK OR SCHOOL FRIDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.
THE LATEST ROAD CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN
BE OBTAINED BY CALLING 5 1 1.

&&

$$

04/AJ

WEATHER.GOV/LACROSSE

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LA CROSSE WI
1100 PM CST WED JAN 18 2012

.SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT
332 PM CST WED JAN 18 2012

MAIN FORECAST CONCERNS ARE ON LIGHT SNOW THIS EVENING...BITTERLY
COLD WIND CHILLS TONIGHT THROUGH THURSDAY MORNING. FOCUS THE QUICKLY
TURNS TO SNOW EXPECTED TO MOVE INTO THE AREA LATE THURSDAY
NIGHT...PERSISTING THROUGH FRIDAY WITH THE POTENTIAL TO BRING 3
TO 6 INCHES OF SNOWFALL TO AREAS MAINLY ALONG AND SOUTH OF
INTERSTATE 94.

CURRENT SURFACE OBSERVATIONS SHOW A COLD FRONT EXTENDING FROM THE
ARROWHEAD OF MINNESOTA..EXTENDING SOUTHWEST TO NEAR SIOUX FALLS SOUTH
DAKOTA...MOVING EAST. BITTERLY COLD WIND CHILLS NOTED BEHIND THE
FRONT...WITH WIND CHILLS OF -20 TO -35 ACROSS MUCH OF NORTH
DAKOTA.

THE COLD FRONT WILL SWEEP ACROSS THE AREA THIS EVENING BRINGING
LIGHT SNOW TO THE AREA. THIS SYSTEM WILL MOVE THROUGH THE AREA
RAPIDLY THIS EVENING BUT COULD CREATE A FEW SLICK SPOTS ON AREA
ROADS WITH A DUSTING TO A FEW TENTHS OF AN INCH OF ACCUMULATION. THE
BEST ISENTROPIC LIFT AND UPPER LEVEL SUPPORT FOR LIGHT SNOW WILL BE
NORTH OF INTERSTATE 90...SO HAVE RAISED PRECIPITATION CHANCES ACROSS
THESE AREAS. WOULD EXPECT TO SEE AROUND A HALF INCH OF ACCUMULATION
ACROSS NORTHERN CLARK AND TAYLOR COUNTY THIS EVENING. NORTHWEST
WINDS WILL INCREASE INTO THE 15 TO 25 MPH RANGE TONIGHT BEHIND THE
FRONT AND TEMPERATURES WILL PLUMMET INTO THE SINGLE DIGITS BELOW
ZERO. A WIND CHILL ADVISORY GOES INTO EFFECT AT 2 AM AND WILL
CONTINUE THROUGH NOON ON THURSDAY. A SHORTWAVE WILL PASS JUST
SOUTH OF THE FORECAST AREA LATE TONIGHT INTO EARLY THURSDAY
MORNING...WITH FRONTOGENESIS SETTING UP IN THE 900 THROUGH 600 MB
LAYER. THIS FORCING SHOULD REMAIN SOUTH OF THE FORECAST
AREA...ACROSS CENTRAL IOWA INTO CENTRAL ILLINOIS BUT WILL HAVE TO
KEEP A CLOSE EYE IT. COLD HIGH PRESSURE WILL SETTLE OVER THE AREA
ON THURSDAY WITH HIGHS STRUGGLING TO REACH INTO THE SINGLE DIGITS.
PLAN ON HIGHS RAGING FROM ZERO ACROSS NORTH CENTRAL WISCONSIN TO
AROUND 7 ACROSS PORTIONS OF NORTHEAST IOWA INTO FAR SOUTHWEST
WISCONSIN.

A SHORTWAVE TROUGH WILL MOVE INTO THE PACIFIC NORTHWEST THURSDAY
AFTERNOON AND RACE ACROSS THE DAKOTAS THURSDAY EVENING. THE WAVE IS
EXPECTED TO MOVE INTO THE FORECAST AREA LATE THURSDAY NIGHT INTO
EARLY FRIDAY MORNING WITH SNOW SPREADING ACROSS THE FORECAST AREA.
AT THIS TIME...MODEL CROSS SECTIONS SHOW A BAND OF FRONTOGENESIS
SETTING UP ACROSS SOUTHEAST MINNESOTA...NORTHEAST IOWA...INTO
SOUTHWEST WISCONSIN...IN THE 850 THROUGH 700 MB LAYER. IN ADDITION...
FAIRLY STRONG OMEGA NOTED IN THE DENDRITIC GROWTH ZONE...ESPECIALLY
ON FRIDAY. PLAN ON SNOWFALL AMOUNTS OF 3 TO 6 INCHES SOUTH OF
INTERSTATE 94...WITH  1 TO 2 INCHES POSSIBLE ACROSS CLARK AND TAYLOR
COUNTIES. A WINTER WEATHER ADVISORY WILL LIKELY BE NEEDED ACROSS
SOUTHEAST MINNESOTA...NORTHEAST IOWA...INTO SOUTHWEST WISCONSIN
FROM LATE THURSDAY NIGHT/FRIDAY MORNING THROUGH FRIDAY AFTERNOON.
SOME UNCERTAINTY REGARDING THE EXACT PLACEMENT OF THE HEAVIEST
SNOW AMOUNTS...SINCE THE MODELS HAVE BEEN TRENDING A LITTLE
FURTHER NORTH AND SLOWER WITH THE 12Z/18Z RUNS. WILL HOLD OFF ON
ISSUING AN ADVISORY FOR NOW...AND GIVE THE MODELS ANOTHER SET OF
RUNS TO NAIL DOWN TIMING AND PLACEMENT OF SNOW ACCUMULATIONS.
ANOTHER CONCERN IS SNOW/LIQUID RATIOS. THE GFS WOULD SUGGEST A 20
TO 1 RATIO...WITH A WARM LAYER STAYING SOUTH OF THE FORECAST AREA.
THE NAM SUGGESTS A RATIO AROUND 15 TO 1...WITH A WARM NOSE EDGING
INTO THE AREA IN THE 800 THROUGH 700 MB LAYER...LIMITING DENDRITIC
SNOW GROWTH. HOWEVER...SHOULD SEE ENOUGH AGGREGATION WITHIN THIS
LAYER AND WITH A FAVORABLE DENDRITIC GROWTH ZONE IN THE 650
THROUGH 550 MB LAYER...WOULD EXPECT TO SEE RATIOS IN THE 16-18 TO
1 RANGE. LOOK FOR SNOW TO CONTINUE THROUGH FRIDAY...TAPERING OFF
DURING THE LATE AFTERNOON AND EVENING HOURS AS COLD HIGH PRESSURE
BUILDS IN. LOOK FOR CLOUDS TO GRADUALLY DECREASE FRIDAY NIGHT WITH
TEMPERATURES FALLING INTO THE SINGLE DIGITS BELOW ZERO. WINDS ARE
EXPECTED TO BE LIGHT...WITH WIND CHILLS IN THE -10 TO -15 RANGE.
WILL HAVE TO KEEP AN EYE ON FAVORED COLD AREAS IF SKIES CLEAR
SOONER THAN ANTICIPATED...MAY HAVE TO REDUCE LOW TEMPERATURES
ACROSS THESE LOCATIONS.

.LONG TERM...SATURDAY THROUGH WEDNESDAY
332 PM CST WED JAN 18 2012

18.12 MEDIUM RANGE MODELS ARE IN GOOD AGREEMENT ON SATURDAY SHOWING
HIGH PRESSURE MOVING OVER THE REGION. 850 MB TEMPERATURES WILL WARM
TO AROUND -2C SATURDAY NIGHT INTO SUNDAY AS AN UPPER RIDGE MOVES
OVERHEAD. MEANWHILE...THE GFS/ECMWF ARE SHOWING AN UPPER TROUGH
MOVING ACROSS THE DAKOTAS LATE SATURDAY NIGHT AND PUSHING INTO THE
UPPER MISSISSIPPI RIVER VALLEY ON SUNDAY. THE ECMWF IS MUCH MORE
AGGRESSIVE WITH THIS FEATURE...DIGGING THE TROUGH INTO THE CENTRAL
PLAINS BEFORE SHIFTING INTO THE REGION. HAVE CHOSE TO GO WITH A MODEL
CONSENSUS BLEND SATURDAY NIGHT THROUGH SUNDAY...PRODUCING A CHANCE
OF SNOW ACROSS THE ENTIRE FORECAST AREA. WILL HAVE TO KEEP CLOSE
WATCH ON THIS SYSTEM. IF THE ECMWF VERIFIES....ACCUMULATING SNOWS
WILL BE LIKELY. PLAN ON HIGHS IN THE LOWER 30S ON SUNDAY. LIGHT SNOW
CHANCES WILL PERSIST THROUGH MONDAY WITH CYCLONIC FLOW ACROSS THE
UPPER MIDWEST. ANOTHER SYSTEM LOOKS TO TAKE AIM ON THE FORECAST AREA
TUESDAY NIGHT THROUGH WEDNESDAY. SOME TIMING AND STRENGTH
DIFFERENCES NOTED IN THE EXTENDED MODELS. THE GFS KEEPS AN OPEN WAVE
AS THE SYSTEM PASSES ACROSS THE FORECAST AREA TUESDAY NIGHT THROUGH
WEDNESDAY. THE ECMWF CLOSES THE TROUGH INTO AN UPPER LOW ACROSS
EASTERN NEBRASKA TUESDAY NIGHT AND LIFTS THIS FEATURE INTO EAST
CENTRAL MINNESOTA BY LATE WEDNESDAY. PLAN ON HIGHS IN THE 30S MONDAY
THROUGH WEDNESDAY WITH LOWS MAINLY IN THE TEENS.

&&

.AVIATION...THROUGH 06Z FRIDAY
1100 PM CST WED JAN 18 2012

COLD FRONT HAS MOVED THROUGH BOTH TAF SITES...WITH DRIER ARCTIC
AIR BEING USHERED IN ITS WAKE ON BRISK NORTHWEST WINDS. PLAN ON
VFR CEILINGS AND VISIBILITIES TO REMAIN THE RULE THROUGH 06Z
FRIDAY WITH THE DRY AIR MOVING IN PLACE. THIS LEAVES WINDS THE
MAIN CONCERN. THE NORTHWEST WINDS OF 15-20 KT WITH GUSTS TO 30 KT
SHOULD SLOWLY DIMINISH DURING THE EARLY MORNING HOURS AS PRESSURES
STOP RISING RAPIDLY. FURTHER DIMINISHING IS ANTICIPATED DURING THE
DAY THURSDAY AS HIGH PRESSURE OVER THE DAKOTAS BUILDS INTO THE TAF
SITES.

LOOKING AHEAD...ANTICIPATING MORE SNOW TO MOVE INTO THE TAF SITES
AROUND 12Z FRIDAY AND LAST THROUGH THE DAY FRIDAY. VISIBILITIES
ARE LIKELY TO FALL TO IFR AND CEILINGS MAY DO THE SAME.

&&

.ARX WATCHES/WARNINGS/ADVISORIES...
332 PM CST WED JAN 18 2012

WI...WIND CHILL ADVISORY FROM 2 AM TO NOON CST THURSDAY FOR WIZ017-
     029-032>034-041>044-053>055-061.

MN...WIND CHILL ADVISORY FROM 2 AM TO NOON CST THURSDAY FOR MNZ079-
     086>088-094>096.

IA...WIND CHILL ADVISORY FROM 2 AM TO NOON CST THURSDAY FOR
     IAZ008>011-018-019-029-030.

&&

SHORT TERM...WETENKAMP
LONG TERM....WETENKAMP
AVIATION...AJ

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LA CROSSE WI
302 PM CST WED JAN 18 2012

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-
032>034-041>044-053>055-061-191200-
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-
302 PM CST WED JAN 18 2012

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

.DAY ONE...TONIGHT

THE COMBINATION OF STRONG NORTHWEST WINDS AND SUB-ZERO TEMPERATURES
WILL RESULT IN WIND CHILLS OF 15 TO 30 BELOW ZERO AFTER MIDNIGHT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

WIND CHILL READINGS WILL REMAIN IN THE 15 BELOW TO 30 BELOW RANGE
THURSDAY MORNING.

ACCUMULATING SNOW IS EXPECTED FROM LATE THURSDAY NIGHT THROUGH
FRIDAY AS A WAVE OF LOW PRESSURE MOVES EAST THROUGH THE REGION.
THERE IS STILL SOME UNCERTAINTY REGARDING THE EXACT STORM TRACK.
HOWEVER...3 TO 6 INCHES OF SNOW ARE LOOKING LIKELY ACROSS NORTHEAST
IOWA INTO FAR SOUTHWEST WISCONSIN...WITH 2 TO 4 INCHES ACROSS
SOUTHEAST MINNESOTA INTO CENTRAL WISCONSIN AND 1 TO 2 INCHES ACROSS
NORTH CENTRAL WISCONSIN. CONTINUE TO MONITOR LATER FORECASTS AND
STATEMENTS FOR DETAILS ON THE SNOWFALL POTENTIAL ON FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

.EMERGENCY MANAGEMENT COORDINATION...

NO WEBINAR IS SCHEDULED.

RABERDING/RRS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
1129 PM CST WED JAN 18 2012

...TIME...  ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
...DATE...  ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1102 PM     SNOW             BARRE MILLS             43.84N 91.12W
01/18/2012  M0.2 INCH        LA CROSSE          WI   PUBLIC

1102 PM     SNOW             WEST SALEM              43.90N 91.10W
01/18/2012  M0.1 INCH        LA CROSSE          WI   PUBLIC

1103 PM     SNOW             LA CROSSE NWS           43.82N 91.19W
01/18/2012  M0.2 INCH        LA CROSSE          WI   PUBLIC

&&
OBSERVATIONS ARE COLLECTED FROM A VARIETY OF SOURCES WITH VARYING
EQUIPMENT AND EXPOSURE.  NOT ALL DATA LISTED IS CONSIDERED OFFICIAL.

BOYNE