Wind Chill Advisory 1, NWS La Crosse, WI

000 
WWUS43 KARX 020333
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
933 PM CST THU FEB 1 2007

...BITTER WIND CHILLS OVERNIGHT AND FRIDAY MORNING...

.WIND CHILLS WILL PLUMMET OVERNIGHT AS AN ARCTIC COLD FRONT MOVES
THROUGH THE REGION. NORTHWEST WINDS OF 15 TO 25 MPH...COMBINING
WITH AIR TEMPERATURES FALLING INTO THE SINGLE DIGITS BELOW ZERO BY
SUNRISE ON FRIDAY...WILL CAUSE WIND CHILLS TO DROP TO NEAR 25
DEGREES BELOW ZERO. THIS WILL BE ESPECIALLY TRUE BETWEEN 3 AM AND
9 AM...WHEN WINDS WILL BE AT THEIR STRONGEST...AND TEMPERATURES AT
THEIR LOWEST.  WIND CHILLS WILL SLOWLY IMPROVE THROUGH THE MORNING
HOURS AS WINDS DECREASE AND AIR TEMPERATURES STRUGGLE BACK ABOVE
ZERO BY NOON.

IAZ008-009-018-019-MNZ086-087-094-095-021145-
/O.CON.KARX.WC.Y.0001.070202T0600Z-070202T1800Z/
MITCHELL-HOWARD-FLOYD-CHICKASAW-DODGE-OLMSTED-MOWER-FILLMORE-
INCLUDING THE CITIES OF...CHARLES CITY...ROCHESTER...AUSTIN
933 PM CST THU FEB 1 2007

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 12 PM CST FRIDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 12 PM CST FRIDAY. 

WIND CHILLS WILL DROP TO 20 TO 25 DEGREES BELOW ZERO OVERNIGHT
ACROSS THE AREA...AND WILL THEN PERSIST IN THAT RANGE THROUGH
MUCH OF FRIDAY MORNING. AIR TEMPERATURES WILL DROP INTO THE
SINGLE DIGITS BELOW ZERO BY SUNRISE ON FRIDAY MORNING...AS
NORTHWEST WINDS REMAIN IN THE 15 TO 25 MPH RANGE. THIS COMBINATION
OF WIND AND COLD WILL KEEP BITTER WIND CHILLS FOR MUCH OF THE
MORNING HOURS ON FRIDAY...BEFORE SLOWLY INCREASING AS TEMPERATURES
GET BACK ABOVE ZERO BY AFTERNOON...AND WINDS DECREASE A BIT.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

MW

000 
WWUS43 KARX 021027
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
427 AM CST FRI FEB 2 2007

...BITTER WIND CHILLS THIS MORNING...

.WIND CHILLS WILL REMAIN BITTERLY COLD THROUGH THE MID MORNING
HOURS. WEST WINDS OF 10 TO 20 MPH...COMBINED WITH AIR TEMPERATURES
IN THE SINGLE DIGITS BELOW ZERO...WILL PRODUCE WIND CHILLS OF 25
TO 30 DEGREES BELOW ZERO. THIS WILL BE ESPECIALLY TRUE THROUGH MID
MORNING WHEN THE AIR TEMPERATURE WILL BE THE LOWEST. WIND CHILLS
WILL SLOWLY IMPROVE THROUGH THE MORNING HOURS AS WINDS DECREASE
AND AIR TEMPERATURES STRUGGLE BACK ABOVE ZERO BY NOON.

IAZ008-009-018-019-MNZ086-087-094-095-021800-
/O.CON.KARX.WC.Y.0001.000000T0000Z-070202T1800Z/
MITCHELL-HOWARD-FLOYD-CHICKASAW-DODGE-OLMSTED-MOWER-FILLMORE-
INCLUDING THE CITIES OF...CHARLES CITY...ROCHESTER...AUSTIN
427 AM CST FRI FEB 2 2007

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY. 

WIND CHILLS WILL REMAIN BETWEEN 25 AND 30 BELOW ZERO THROUGH MID
MORNING WITH AIR TEMPERATURES IN THE SINGLE DIGITS BELOW ZERO AND
WEST WINDS OF 10 TO 20 MPH. CONDITIONS WILL IMPROVE OVER THE LAST
HALF OF THE MORNING AS AIR TEMPERATURES CLIMB INTO THE SINGLE
DIGITS ABOVE ZERO AND THE WINDS DECREASE TO AROUND 10 MPH.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$

04

000 
WWUS43 KARX 021347
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
747 AM CST FRI FEB 2 2007

...BITTER WIND CHILLS CONTINUE THIS MORNING...

.ANOTHER ARCTIC AIRMASS CONTINUED TO SPREAD ACROSS THE AREA THIS
MORNING. WEST TO NORTHWEST WINDS OF 10 TO 15 MPH...COMBINED WITH
AIR TEMPERATURES OF ZERO TO AROUND 10 BELOW ZERO...WILL PRODUCE
WIND CHILLS OF 20 TO 30 DEGREES BELOW ZERO THROUGH THE MORNING.
THIS WILL BE ESPECIALLY TRUE THROUGH 10 AM WHEN THE AIR
TEMPERATURES WILL BE THE LOWEST. WIND CHILLS WILL SLOWLY IMPROVE
THROUGH THE LATE MORNING HOURS AS AIR TEMPERATURES STRUGGLE BACK
TO AROUND ZERO OR ABOVE.

IAZ008-009-018-019-MNZ086-087-094-095-021800-
/O.CON.KARX.WC.Y.0001.000000T0000Z-070202T1800Z/
MITCHELL-HOWARD-FLOYD-CHICKASAW-DODGE-OLMSTED-MOWER-FILLMORE-
INCLUDING THE CITIES OF...CHARLES CITY...ROCHESTER...AUSTIN
747 AM CST FRI FEB 2 2007

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY. 

WIND CHILLS WILL REMAIN BETWEEN 20 AND 30 BELOW ZERO THROUGH MID
MORNING WITH AIR TEMPERATURES IN THE SINGLE DIGITS BELOW ZERO AND
WEST WINDS OF 10 TO 15 MPH. CONDITIONS WILL IMPROVE OVER THE LAST
HALF OF THE MORNING AS AIR TEMPERATURES CLIMB TOWARD OR ABOVE THE
ZERO MARK AND THE WINDS DECREASE TO AROUND 10 MPH.

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
WHEN VENTURING OUTDOORS THIS MORNING...DRESS WARMLY AND MAKE SURE
TO WEAR A HAT AND GLOVES.

$$

RRS

000 
WWUS43 KARX 021804
WSWARX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
1204 PM CST FRI FEB 2 2007

...WIND CHILL ADVISORY ALLOWED TO EXPIRE...

.WITH AMPLE SUNSHINE SO FAR TODAY...TEMPERATURES HAVE WARMED UP TO
NEAR THE ZERO MARK. WINDS HAVE ALSO DIMINISHED A BIT FROM EARLIER
TODAY. AS A RESULT...WIND CHILL VALUES HAVE IMPROVED...AND AN
ADVISORY IS NO LONGER NECESSARY. THEREFORE IT HAS BEEN ALLOWED TO
EXPIRE FOR THE TIME BEING.

IAZ008-009-018-019-MNZ086-087-094-095-021915-
/O.EXP.KARX.WC.Y.0001.000000T0000Z-070202T1800Z/
MITCHELL-HOWARD-FLOYD-CHICKASAW-DODGE-OLMSTED-MOWER-FILLMORE-
INCLUDING THE CITIES OF...CHARLES CITY...ROCHESTER...AUSTIN
1204 PM CST FRI FEB 2 2007

...WIND CHILL ADVISORY HAS EXPIRED...

THE WIND CHILL ADVISORY IS NO LONGER IN EFFECT FOR THE REST OF
TODAY. 

$$

MW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LA CROSSE WI
230 PM CST THU FEB 1 2007

.SHORT TERM...TONIGHT THROUGH SUNDAY NIGHT

FORECAST FOCUS IS ON HOW COLD IT WILL GET OVER THE NEXT FEW
DAYS...AND THE EFFECTS OF INCREASING WINDS ON THE WIND CHILL.
ADVISORIES NEEDED? THEN...THE SNOW POTENTIAL THROUGH SATURDAY.

FIRST...LETS CONSIDER THE SNOW CHANCES. CURRENTLY...A 500 MB
SHORTWAVE TROUGH IS DIVING INTO THE NORTHERN PLAINS...AND WILL HEAD
EAST INTO THE UPPER MISSISSIPPI RIVER VALLEY TONIGHT. DECENT QG
CONVERGENCE ABOVE 700 MB WITH THIS FEATURE...MOSTLY BETWEEN 03-12Z
FRI FOR THE LOCAL AREA. THERE IS SOME WEAK ISENTROPIC UPGLIDE ON THE
285:300 K SFC/S AS THE SHORTWAVE SWINGS THROUGH...AND SOME WEAK 2-D
FRONTOGENETIC LIFT IS ALSO HINTED IN THE 900:800 MB
LAYER...ASSOCIATED WITH A SFC BOUNDARY ASSOCIATED WITH THE UPPER
LEVEL FORCING. AS FOR MOISTURE...A NORTHWEST-SOUTHEAST X-SECTION
ACROSS THE REGION SHOWS AN INCREASE IN THE DEPTH OF THE SATURATION
AS THE SHORTWAVE APPROACHES...CENTERED AROUND 06Z TONIGHT. THIS
SATURATION SHALLOWS OUT AFTER 12Z...AS THE SYSTEM EXITS EAST. WHILE
THIS SYSTEM IS NOT OVER DYNAMIC...THERE IS PLENTY OF MOISTURE AND
LIFT FOR DECENT LIGHT SNOW CHANCES. LATEST 88-D IMAGERY DOES
INDICATE SOME SNOW ALONG AND AHEAD OF THE SFC BOUNDARY...EXTENDING
FROM EASTCENTRAL MN SOUTHWEST INTO NORTHWEST IA. CONSIDERING THE
AMOUNT OF COLD AIR IN PLACE...IT SHOULD BE THE VERY FLUFFY KIND OF
SNOW THAT HAS FALLEN OVER PARTS OF THE REGION THE LAST FEW DAYS.
ACCUMULATIONS WILL BE MINOR...GENERALLY AN INCH OR LESS...MUCH LIKE
WHAT OCCURRED LAST NIGHT. ANY ACCUMULATING SNOWS SHOULD END BY
FRIDAY MORNING...ALTHOUGH SOME FLURRIES THROUGH THE DAY WILL BE
POSSIBLE.

ANOTHER...WEAKER SHORTWAVE WILL FOLLOW QUICKLY ON THE HEELS OF THE
SHORTWAVE TONIGHT...MOVING ACROSS THE REGION WITH THE MEAN 500 MB
AXIS OVERNIGHT FRI/SAT MORNING. QG CONVERGENCE IS WEAKER...AS IS ANY
ISENTROPIC UPGLIDE. HOWEVER...ANOTHER SFC BOUNDARY WILL ACCOMPANY
THIS UPPER LEVEL SHORTWAVE AS IT MOVES THROUGH...AND THE DEPTH OF
THE SATURATION WILL INCREASE AGAIN...ALTHOUGH NOT AS DEEP AS
TONIGHT. THIS SHOULD LEAD TO ANOTHER DECENT CHANCE FOR SOME
LIGHT...FLUFFY SNOW FRIDAY NIGHT. AGAIN...ACCUMULATIONS LOOK
MINIMAL...LESS THAN AN INCH. HOWEVER...DESPITE THE SYSTEM MOVING
EAST OF THE LOCAL AREA EARLY SAT MORNING...LAPSE RATES IN THE
850:700 MB LAYER OF AROUND 5-7 C/KM ARE EXPECTED INTO THE EARLY
AFTERNOON. THIS SHOULD KEEP THE THREAT FOR SOME SNOW SHOWERS AND
FLURRIES AROUND FOR MOST OF THE DAY ON SATURDAY.

NOW...ON TO THE BITTER COLD CONDITIONS. EACH SFC BOUNDARY WILL BRING
A BLAST OF COLD ARCTIC AIR TO THE REGION...WITH 850 MB TEMPS FALLING
FROM AROUND -14 C AT 12Z THIS MORNING...TO -22 C AT 12Z FRI...AND
-26Z BY 12Z SAT. BELOW ZERO OVERNIGHT LOWS CAN BE EXPECTED FOR MOST
LOCATIONS THROUGH THE WEEKEND AS A RESULT...WITH HIGHS STRUGGLING TO
REACH ZERO IN SOME AREAS ON SATURDAY AS THE COLD START AND
PERSISTENT LOW LEVEL COLD ADVECTION HOLDS DOWN DIURNAL RISES. OF
MORE SIGNIFICANCE TO THE ANTICIPATED COLD IS THE INCREASING
WINDS...AND THE DANGEROUS WINDS CHILLS THAT COULD RESULT. THE WINDS
WILL BE ON THE INCREASE TONIGHT...AND THEN STAY BRISK THROUGH
SATURDAY. THE STRONGEST WINDS LOOK TO MOVE ACROSS THE UPPER
MISSISSIPPI RIVER VALLEY LATE FRIDAY NIGHT THROUGH SATURDAY...WITH
WIND CHILLS OF 15 TO 25 BELOW ZERO RESULTING. A WIND CHILL ADVISORY
WILL LIKELY HAVE TO BE ISSUED FOR THE FRIDAY NIGHT/SATURDAY TIME
FRAME AS A RESULT. TONIGHT...THE LOWEST WIND CHILLS WILL BE WEST OF
THE MISSISSIPPI RIVER...IN THE OPEN AREAS OF SOUTHEAST MN/NORTHEAST
IA. CURRENTLY...LOOKING FOR READINGS TO REACH -20 F OR SO OVERNIGHT
TONIGHT THROUGH SAT MORNING. WITH THIS IN MIND...WILL ISSUE A WIND
CHILL ADVISORY FOR PARTS OF SOUTHEAST MN/NORTHEAST WI FOR LATE
TONIGHT THROUGH FRI MORNING.

.LONG TERM...MONDAY THROUGH THURSDAY

EXTENDED MODELS CONTINUE IN FAIRLY GOOD AGREEMENT WITH THE OVERALL
PATTERN...GRADUALLY PUSHING THE MEAN 500 MB TROUGH AXIS FROM THE
EASTERN GREAT LAKES AT 00Z TUES...TO THE NEW ENGLAND STATES BY 00Z
THU. VARIOUS PERTURBATIONS WILL MOVE DOWN THE BACKSIDE OF THE
TROUGH...BUT ITS EXPECTED POSITIONING SHOULD KEEP THE BRUNT OF THEIR
IMPACTS EAST OF THE LOCAL AREA. IN ADDITION...A SFC HIGH IS PROGGED
TO DROP SOUTHEAST ACROSS THE NORTHERN PLAINS AND INTO THE MID
MISSISSIPPI RIVER VALLEY BY 12Z TUES. AS A RESULT...IT MAY END UP
WITH POINTS WEST OF THE MISSISSIPPI RIVER DEALING WITH MORE
CLEAR/PARTLY CLOUDY CONDITIONS...WHILE FARTHER WEST THE CYCLONIC
FLOW ALOFT WILL KEEP CLOUDS MORE ABUNDANT...AND POSSIBLY SOME
FLURRIES. TEMPERATURES LOOKS TO STAY COLD THROUGH THE
PERIOD...ALTHOUGH THE MODELS ARE HINTING AT SOME MODERATION IN THE
TEMPERATURES BY MID WEEK...WITH LOW LEVEL SOUTHERLY FLOW ON THE
BACKSIDE OF THE DEPARTING SFC HIGH PUSHING IN SOMEWHAT WARMER AIR.
DON/T LOOK FOR A BIG WARM UP THOUGH...AS TEMPS SHOULD STAY BELOW THE
SEASONABLE NORMALS.

&&

.ARX WATCHES/WARNINGS/ADVISORIES...
WI...NONE.
MN...WIND CHILL ADVISORY FROM MIDNIGHT TONIGHT TO 12 PM CST FRIDAY
     FOR MNZ086-MNZ087-MNZ094-MNZ095.

IA...WIND CHILL ADVISORY FROM MIDNIGHT TONIGHT TO 12 PM CST FRIDAY
     FOR IAZ008-IAZ009-IAZ018-IAZ019.
&&

RIECK

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE LA CROSSE WI
237 PM CST THU FEB 1 2007

IAZ008-009-018-019-MNZ086-087-094-095-021100-
CHICKASAW-DODGE-FILLMORE-FLOYD-HOWARD-MITCHELL-MOWER-OLMSTED-
237 PM CST THU FEB 1 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF SOUTHEAST MINNESOTA...
AND NORTHEAST IOWA.

.DAY ONE...TONIGHT

NORTHWEST WINDS WILL INCREASE TO 15 TO 25 MPH...WHILE TEMPERATURES
PLUMMET TO THE SINGLE DIGITS BELOW ZERO BY SUNRISE ON FRIDAY...AS A
STRONG ARCTIC COLD FRONT MOVES INTO THE AREA BY MIDNIGHT. THESE
COLD TEMPERATURES...COMBINED WITH THE WINDS...WILL BRING BITTERLY
COLD WIND CHILL VALUES FROM 20 TO 25 DEGREES BELOW ZERO.

IN ADDITION...THE STRONG WINDS WILL CAUSE BLOWING SNOW...WHICH WILL
REDUCE VISIBILITIES TO A MILE OR TWO IN WIND PRONE AND OPEN
AREAS. ALSO...LIGHT SNOW WILL ACCOMPANY THE FRONT...WITH
ACCUMULATIONS EXPECTED TO REMAIN AN INCH OR LESS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

BLOWING SNOW...BITTER WIND CHILLS...GUSTY NORTHWEST WINDS AND
AREAS OF REDUCED VISIBILITY WILL BE ONGOING DURING THE MORNING
HOURS ON FRIDAY. WIND CHILLS ARE EXPECTED TO REMAIN BETWEEN 20 AND
25 DEGREES BELOW ZERO MUCH OF FRIDAY MORNING ACROSS THE AREA...AS
AIR TEMPERATURES WILL BE SLOW TO RISE IN THE ARCTIC AIRMASS.

VERY COLD CONDITIONS ARE EXPECTED THROUGH THE WEEKEND AND INTO EARLY
NEXT WEEK. BITTERLY COLD WIND CHILL READINGS WILL CONTINUE THROUGH
THE WEEKEND...AND COULD BE AS LOW AS 25 BELOW TO 35 BELOW ZERO AS
THE COLDEST AIR OF THE CURRENT WINTER SEASON MOVES INTO THE AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED. EVEN THOUGH SNOWFALL WILL BE
DIFFICULT TO MEASURE LATE TONIGHT AND FRIDAY MORNING DUE TO GUSTY
WINDS...ANY REPORTS OF SNOW ACCUMULATION WOULD BE APPRECIATED.

.EMERGENCY MANAGEMENT COORDINATION...

NO CALL IS SCHEDULED.

IAZ010-011-029-030-MNZ079-088-096-WIZ017-029-032>034-041>044-053>055-
061-021100-
ADAMS-ALLAMAKEE-BUFFALO-CLARK-CLAYTON-CRAWFORD-FAYETTE-GRANT-HOUSTON-
JACKSON-JUNEAU-LA CROSSE-MONROE-RICHLAND-TAYLOR-TREMPEALEAU-VERNON-
WABASHA-WINNESHIEK-WINONA-
237 PM CST THU FEB 1 2007

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

.DAY ONE...TONIGHT

NORTHWEST WINDS WILL INCREASE TO 15 TO 20 MPH AFTER MIDNIGHT...WHILE
TEMPERATURES PLUMMET TOWARDS ZERO BY SUNRISE ACROSS THE AREA...AS AN
ARCTIC COLD FRONT PLOWS THROUGH THE AREA. THESE COLD TEMPERATURES...
COMBINED WITH THE WINDS...WILL BRING BITTERLY COLD WIND CHILL VALUES
FROM 15 TO 20 DEGREES BELOW ZERO.

IN ADDITION...THE STRONG WINDS WILL CAUSE SOME BLOWING SNOW...
PARTICULARLY ON RIDGETOPS AND IN OPEN AREAS...WHICH MAY LOCALLY
REDUCE VISIBILITIES. ALSO...LIGHT SNOW WILL ACCOMPANY THE FRONT...
WITH ACCUMULATIONS EXPECTED TO REMAIN AN INCH OR LESS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

BITTER WIND CHILLS...AND GUSTY NORTHWEST WINDS WILL BE ONGOING DURING
THE MORNING HOURS ON FRIDAY. WIND CHILLS ARE EXPECTED TO REMAIN
BETWEEN 15 AND 20 DEGREES BELOW ZERO MUCH OF FRIDAY MORNING ACROSS
THE AREA...AS AIR TEMPERATURES WILL BE SLOW TO RISE IN THE ARCTIC
AIRMASS.

VERY COLD CONDITIONS ARE EXPECTED THROUGH THE WEEKEND AND INTO EARLY
NEXT WEEK. BITTERLY COLD WIND CHILL READINGS WILL CONTINUE THROUGH
THE WEEKEND...AND COULD BE AS LOW AS 20 BELOW TO 30 BELOW ZERO AS
THE COLDEST AIR OF THE CURRENT WINTER SEASON MOVES INTO THE AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED. EVEN THOUGH SNOWFALL WILL BE
DIFFICULT TO MEASURE LATE TONIGHT AND FRIDAY MORNING DUE TO GUSTY
WINDS...ANY REPORTS OF SNOW ACCUMULATION WOULD BE APPRECIATED.

.EMERGENCY MANAGEMENT COORDINATION...

NO CALL IS SCHEDULED.

BINAU