Alert archive / South Dakota / Winter Storm Warnings in 2009

Winter Storm Warning 1, NWS Sioux Falls, SD

February 25, 20097 counties in Minnesota; Dickinson County, Iowa; 8 counties in South Dakota

NWS Sioux Falls, SD issued this winter storm warning at Feb 25, 2009, 4:15 AM CST for 7 counties in Minnesota; Dickinson County, Iowa; 8 counties in South Dakota. It took effect at Feb 26, 2009, 2:00 AM CST. It was in force for 19 hr. 25 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
Feb 25, 2009, 4:15 AM CST (10:15 UTC)
In effect from
Feb 26, 2009, 2:00 AM CST
Expired
Feb 26, 2009, 9:07 PM CST
In force
19 hr
Issued by
NWS Sioux Falls, SD

Counties Dickinson County, IA, Cottonwood County, MN, Jackson County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Beadle County, SD, Brookings County, SD, Jerauld County, SD, Kingsbury County, SD, Lake County, SD, Miner County, SD, Moody County, SD, Sanborn County, SD

The radar

The Sioux Falls radar (KFSD), 53 km from the middle of the area, began a volume at 10:14 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
Feb 26, 5:15 AM CSTSNOW 2Huron, SDQUICK 2 INCHES IN THE LAST HOUR
Feb 26, 7:00 AM CSTSNOW 26 Nnw White, SD
Feb 26, 7:00 AM CSTSNOW 3Iroquois, SD
Feb 26, 7:00 AM CSTHEAVY SNOW 4.53 Wsw Hitchcock, SD
Feb 26, 8:00 AM CSTSNOW 0.7Pipestone, MN
Feb 26, 8:00 AM CSTSNOW 1.12 Ne Brookings, SD
Feb 26, 9:00 AM CSTSNOW 1.5Arlington, SD
Feb 26, 9:00 AM CSTSNOW 3.5Huron, SD
Feb 26, 9:15 AM CSTSNOW 0.64 Ne Bruce, SD
Feb 26, 9:15 AM CSTSNOW 0.9Ssw Brookings, SD
Feb 26, 9:22 AM CSTSNOW 4.53 Wsw Hitchcock, SD
Feb 26, 9:31 AM CSTSNOW 26 Nnw White, SD
Feb 26, 9:40 AM CSTSNOW 2Currie, MN
Feb 26, 9:45 AM CSTSNOW 1.5Madison, SD
Feb 26, 9:55 AM CSTSNOW 2Wessington Springs, SDGLAZE OF ICE.
Feb 26, 11:15 AM CSTSNOW 3Ivanhoe, MN
Feb 26, 11:20 AM CSTSNOW 3.54 N Currie, MN
Feb 26, 11:20 AM CSTSNOW 3.5Marshall, MN
Feb 26, 3:28 PM CSTSNOW 3Pipestone, MN
Feb 26, 3:33 PM CSTSNOW 2.5Worthington, MN
Feb 26, 3:35 PM CSTSNOW 3.5Jackson, MN
Feb 26, 3:38 PM CSTSNOW 4Windom, MN
Feb 26, 4:00 PM CSTSNOW 3.4Huron, SD
Feb 26, 5:30 PM CSTSNOW 1.34 N Spirit Lake, IALIGHT COATING OF FREEZING RAIN.
Feb 26, 6:01 PM CSTSNOW 4.54 N Currie, MN

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

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 10.3 hours before the alert went out and 169 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, Aberdeen, SD at 00:00Z on 2009-02-25Temperature 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, Aberdeen, SD at 00:00Z on 2009-02-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 197 square meters per square second.1939587897Sfc1 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
1649 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
197 m²/s²
0-3 km storm-relative helicity
279 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 KFSD 251015
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
415 AM CST WED FEB 25 2009

.COLDER AIR WORKING SOUTHWARD TODAY AND TONIGHT WILL BE IN PLACE AS
A STRONG UPPER LEVEL DISTURBANCE PUSHES INTO THE NORTHERN PLAINS
LATER TONIGHT AND THURSDAY. SPOTTY LIGHT PRECIPITATION WILL BEGIN
TOWARD MIDNIGHT WEST OF THE JAMES VALLEY...WITH SNOW NORTH AND A
WINTRY MIX TO THE SOUTH...BECOMING MORE WIDESPREAD DURING THE
NIGHT SPREADING INTO THE INTERSTATE 29 CORRIDOR LATE...AND INTO
SOUTHWEST MINNESOTA AND NORTHWEST IOWA EARLY THURSDAY MORNING.
PRECIPITATION WILL BE MAINLY IN THE FORM OF SNOW...HEAVY AT
TIMES...NORTH OF INTERSTATE 90. THERE WILL BE A PERIOD OF FREEZING
RAIN OR SLEET FOR AREAS TOWARD INTERSTATE 90 AND SOUTHWARD...WHICH
MAY YIELD SOME ICE ACCUMULATIONS ACROSS SOUTHEAST SOUTH DAKOTA...
EXTREME SOUTHERN MINNESOTA...AND NORTHWEST IOWA...ESPECIALLY AROUND
THE IOWA GREAT LAKES THURSDAY MORNING. THE TRANSITION TO SNOW WILL
WORK SOUTHEAST THROUGH THE MORNING...WITH PRECIPITATION BECOMING
ALL SNOW...HEAVY AT TIMES...BY EARLY AFTERNOON ACROSS NORTHWEST
IOWA. TOTAL SNOW ACCUMULATIONS WILL GENERALLY BE FROM 4 TO 8
INCHES NORTH OF INTERSTATE 90...AND SOUTHWARD TOWARD THE IOWA
GREAT LAKES AREA.

LOW PRESSURE AT THE SURFACE WILL BEGIN TO STRENGTHEN ACROSS
THE CENTRAL PLAINS ON THURSDAY...AND THIS WILL INCREASE NORTHERLY
WINDS TO A GUSTY NORTH 20 TO 35 MPH. BLOWING SNOW...AND BITTERLY
COLD WIND CHILLS ARE EXPECTED TO DEVELOP AS THE DAY PROGRESSES...
ADDING TO THE HAZARDOUS WINTER WEATHER CONDITIONS.

SDZ038>040-052>056-251815-
/O.UPG.KFSD.WS.A.0001.090226T0600Z-090227T0000Z/
/O.NEW.KFSD.WS.W.0001.090226T0600Z-090227T0000Z/
BEADLE-KINGSBURY-BROOKINGS-JERAULD-SANBORN-MINER-LAKE-MOODY-
INCLUDING THE CITIES OF...HURON...DE SMET...ARLINGTON...
LAKE PRESTON...BROOKINGS...WESSINGTON SPRINGS...ALPENA...
WOONSOCKET...HOWARD...MADISON...FLANDREAU
415 AM CST WED FEB 25 2009

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM
CST THURSDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOWFALL...WHICH IS IN EFFECT FROM
MIDNIGHT TONIGHT TO 6 PM CST THURSDAY. THE WINTER STORM WATCH IS
NO LONGER IN EFFECT.

PRECIPITATION WILL BECOME WIDESPREAD AFTER MIDNIGHT WEDNESDAY
NIGHT...FEATURING ALL SNOW TOWARD HIGHWAY 14...BUT STARTING
BRIEFLY AS A WINTRY MIX FARTHER TO THE SOUTH. SNOW WILL BECOME
HEAVY AT TIMES BY THE PRE-DAWN HOURS THURSDAY MORNING...AND
CONTINUE BEFORE TAPERING OFF ON THURSDAY AFTERNOON. NORTH WINDS OF
10 TO 15 MPH WILL INCREASE TO 20 TO 30 MPH CREATING AREAS OF
BLOWING AND DRIFTING SNOW IN THE AFTERNOON HOURS THURSDAY. FOUR TO
EIGHT INCHES OF SNOW ARE EXPECTED BY THURSDAY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...
AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

IAZ002-003-014-MNZ089-090-098-251815-
/O.EXB.KFSD.WS.A.0001.090226T1200Z-090227T0000Z/
OSCEOLA-DICKINSON-CLAY-NOBLES-JACKSON-ROCK-
INCLUDING THE CITIES OF...SIBLEY...SPIRIT LAKE...MILFORD...
ARNOLDS PARK...SPENCER...WORTHINGTON...JACKSON...LAKEFIELD...
LUVERNE
415 AM CST WED FEB 25 2009

...WINTER STORM WATCH IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY AFTERNOON. 

A WINTRY MIX OF FREEZING RAIN...SLEET AND SNOW WILL DEVELOP LATE
WEDNESDAY NIGHT....AND BECOME WIDESPREAD EARLY THURSDAY MORNING.
THERE IS POTENTIAL FOR A LONGER PERIOD OF FREEZING RAIN ACROSS
NORTHWEST IOWA ON THURSDAY MORNING...AND ICE ACCUMULATIONS OF ONE
TO TWO TENTHS OF AN INCH ARE POSSIBLE. THE PRECIPITATION WILL
GRADUALLY CHANGE TO ALL SNOW BY MIDDAY THURSDAY...AND SNOW MAY BECOME
HEAVY AT TIMES. NORTHEAST WINDS OF 10 TO 15 MPH WILL INCREASE TO
20 TO 30 MPH...CREATING AREAS OF BLOWING AND DRIFTING SNOW AND
DRIVING WIND CHILLS DOWN TO 10 TO 20 DEGREES BELOW ZERO THURSDAY
AFTERNOON INTO THURSDAY EVENING. FOUR TO SIX INCHES OF SNOW ARE
POSSIBLE BY THURSDAY NIGHT. STRONG NORTH WINDS WILL GRADUALLY
SUBSIDE LATE THURSDAY NIGHT.

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.

&&

$$

MNZ071-072-080-081-097-251815-
/O.CON.KFSD.WS.A.0001.090226T1200Z-090227T0600Z/
LINCOLN-LYON-MURRAY-COTTONWOOD-PIPESTONE-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
PIPESTONE
415 AM CST WED FEB 25 2009

...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH THURSDAY EVENING...

A WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH THURSDAY EVENING. 

SNOW WILL DEVELOP ON THURSDAY MORNING AND CONTINUE...POSSIBLY
HEAVY AT TIMES...THROUGHOUT MUCH OF THE DAY. NORTHEAST WINDS OF
10 TO 15 MPH WILL INCREASE TO GUSTY NORTH 20 TO 30 MPH...CREATING
AREAS OF BLOWING AND DRIFTING SNOW AND DRIVING WIND CHILLS DOWN TO
10 TO 20 DEGREES BELOW ZERO THURSDAY AFTERNOON INTO THURSDAY
EVENING. FOUR TO EIGHT INCHES OF SNOW ARE POSSIBLE BY THURSDAY
NIGHT. STRONG NORTH WINDS WILL GRADUALLY SUBSIDE LATER THURSDAY
NIGHT INTO FRIDAY MORNING.

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.

&&

$$

CHAPMAN
7 follow-up statements
000 
WWUS43 KFSD 251707
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1107 AM CST WED FEB 25 2009

.COLDER AIR WILL WORK SOUTH TODAY AND BE IN PLACE AS A STRONG
UPPER LEVEL DISTURBANCE MOVES ACROSS THE NORTHERN PLAINS LATE TONIGHT
AND THURSDAY. THIS AREA OF PRECIPITATION WILL MOVE INTO THE JAMES
VALLEY AREA SHORTLY AFTER MIDNIGHT...TOWARDS THE INTERSTATE 29
CORRIDOR BETWEEN 300 AM AND 600 AM AND INTO SOUTHWEST MINNESOTA
AND NORTHWEST IOWA BY 600 AM. THERE WILL BE A PERIOD OF FREEZING
RAIN OR SLEET FOR AREAS AROUND AND SOUTH OF INTERSTATE 90...WHICH
MAY YIELD SOME ICE ACCUMULATIONS ACROSS SOUTHEAST SOUTH DAKOTA...
EXTREME SOUTHERN MINNESOTA...AND NORTHWEST IOWA...ESPECIALLY
AROUND THE IOWA GREAT LAKES THURSDAY MORNING. THE TRANSITION TO
SNOW WILL WORK SOUTHEAST THROUGH THE MORNING...WITH PRECIPITATION
BECOMING ALL SNOW...HEAVY AT TIMES... BY EARLY AFTERNOON ACROSS
NORTHWEST IOWA. TOTAL SNOW ACCUMULATIONS WILL GENERALLY BE FROM 4
TO 8 INCHES NORTH OF INTERSTATE 90...AND SOUTHWARD TOWARD THE IOWA
GREAT LAKES AREA.

LOW PRESSURE AT THE SURFACE WILL BEGIN TO STRENGTHEN ACROSS THE
CENTRAL PLAINS ON THURSDAY...AND THIS WILL INCREASE NORTHERLY
WINDS TO A GUSTY NORTH 20 TO 35 MPH. BLOWING SNOW...AND BITTERLY
COLD WIND CHILLS ARE EXPECTED TO DEVELOP AS THE DAY PROGRESSES...
ADDING TO THE HAZARDOUS WINTER WEATHER CONDITIONS.

MNZ071-072-080-081-097-260115-
/O.UPG.KFSD.WS.A.0001.090226T1200Z-090227T0600Z/
/O.EXB.KFSD.WS.W.0001.090226T0900Z-090227T0300Z/
LINCOLN-LYON-MURRAY-COTTONWOOD-PIPESTONE-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
PIPESTONE
1107 AM CST WED FEB 25 2009

...WINTER STORM WARNING IN EFFECT FROM 3 AM TO 9 PM CST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 3 AM TO 9
PM CST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

A MIX OF FREEZING RAIN...SLEET AND SNOW WILL DEVELOP LATE
TONIGHT...THEN TRANSITION TO ALL SNOW BY MID MORNING. THE SNOW
WILL BECOME HEAVY AT TIMES...ESPECIALLY BETWEEN 1000 AM CST AND
400 PM CST. SNOWFALL RATES OF AROUND 2 INCHES PER HOUR WILL BE
POSSIBLE...LEADING TOWARDS SNOWFALL TOTALS OF 5 TO 8 INCHES BY
EARLY EVENING. NORTHEAST WINDS WILL BECOME NORTHERLY AND INCREASE
TO 20 TO 30 MPH...CREATING AREAS OF BLOWING AND DRIFTING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.

&&

$$

SDZ038>040-052>056-260115-
/O.CON.KFSD.WS.W.0001.090226T0600Z-090227T0000Z/
BEADLE-KINGSBURY-BROOKINGS-JERAULD-SANBORN-MINER-LAKE-MOODY-
INCLUDING THE CITIES OF...HURON...DE SMET...ARLINGTON...
LAKE PRESTON...BROOKINGS...WESSINGTON SPRINGS...ALPENA...
WOONSOCKET...HOWARD...MADISON...FLANDREAU
1107 AM CST WED FEB 25 2009

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 PM CST THURSDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
6 PM CST THURSDAY. 

PRECIPITATION WILL BECOME WIDESPREAD AFTER MIDNIGHT TONIGHT...FEATURING
ALL SNOW TOWARD HIGHWAY 14...BUT STARTING BRIEFLY AS A WINTRY MIX
FARTHER TO THE SOUTH. SNOW WILL BECOME HEAVY AT TIMES BY THE PRE-
DAWN HOURS THURSDAY MORNING...AND CONTINUE BEFORE TAPERING OFF ON
THURSDAY AFTERNOON. NORTH WINDS OF 10 TO 15 MPH WILL INCREASE TO
20 TO 30 MPH CREATING AREAS OF BLOWING AND DRIFTING SNOW IN THE
AFTERNOON HOURS THURSDAY. FOUR TO EIGHT INCHES OF SNOW ARE
EXPECTED BY THURSDAY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD... AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

SDZ057>060-064-065-260115-
/O.NEW.KFSD.WW.Y.0010.090226T0600Z-090227T0000Z/
BRULE-AURORA-DAVISON-HANSON-DOUGLAS-HUTCHINSON-
INCLUDING THE CITIES OF...CHAMBERLAIN...KIMBALL...PLANKINTON...
WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...ARMOUR...
CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP
1107 AM CST WED FEB 25 2009

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
6 PM CST THURSDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
WEATHER ADVISORY FOR A MIX OF SLEET...FREEZING RAIN AND SNOW...WHICH
IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST THURSDAY.

AN AREA OF FREEZING RAIN...POSSIBLY MIXED WITH SLEET...WILL MOVE
INTO THE AREA AFTER MIDNIGHT...CREATING A GLAZE OF ICE AROUND A
TENTH OF AN INCH ACROSS EXPOSED SURFACES AND ROADWAYS. SHORTLY
AFTER SUNRISE...THIS WILL TRANSITION TO SNOWFALL WITH SNOWFALL
TOTALS BY LATE AFTERNOON OF 2 TO 4 INCHES. NORTHERLY WINDS WILL
ALSO INCREASE THROUGH THE DAY TO 20 TO 30 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IAZ001-012-013-SDZ061-062-066-067-260115-
/O.NEW.KFSD.WW.Y.0010.090226T1000Z-090227T0300Z/
LYON-SIOUX-OBRIEN-MCCOOK-MINNEHAHA-TURNER-LINCOLN-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...ORANGE CITY...SIOUX CENTER...SHELDON...HARTLEY...
SANBORN...SALEM...CANISTOTA...BRIDGEWATER...MONTROSE...
SIOUX FALLS...PARKER...CENTERVILLE...MARION...VIBORG...HURLEY...
CHANCELLOR...CANTON...LENNOX...TEA...HARRISBURG
1107 AM CST WED FEB 25 2009

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 9 PM CST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
WEATHER ADVISORY FOR FREEZING RAIN...SLEET AND SNOW...WHICH IS IN
EFFECT FROM 4 AM TO 9 PM CST THURSDAY.

AN AREA OF FREEZING RAIN...POSSIBLY MIXED WITH SLEET...WILL MOVE
INTO THE AREA AFTER ABOUT 400 AM CST...CREATING A GLAZE OF ICE
AROUND A TENTH OF AN INCH ACROSS EXPOSED SURFACES AND ROADWAYS BY
MID MORNING. FROM LATE MORNING ON...THIS MIX OF PRECIPITATION WILL
TRANSITION TO SNOWFALL WITH SNOWFALL TOTALS BY LATE AFTERNOON OF 2
TO 4 INCHES. NORTHERLY WINDS WILL ALSO INCREASE THROUGH THE DAY TO
20 TO 30 MPH CREATING AREAS OF BLOWING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IAZ002-003-014-MNZ089-090-098-260115-
/O.EXT.KFSD.WS.A.0001.090226T1200Z-090227T0300Z/
OSCEOLA-DICKINSON-CLAY-NOBLES-JACKSON-ROCK-
INCLUDING THE CITIES OF...SIBLEY...SPIRIT LAKE...MILFORD...
ARNOLDS PARK...SPENCER...WORTHINGTON...JACKSON...LAKEFIELD...
LUVERNE
1107 AM CST WED FEB 25 2009

...WINTER STORM WATCH NOW IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY EVENING...

THE WINTER STORM WATCH IS NOW IN EFFECT FROM THURSDAY MORNING
THROUGH THURSDAY EVENING. 

A WINTRY MIX OF FREEZING RAIN...SLEET AND SNOW WILL DEVELOP LATE
WEDNESDAY NIGHT....AND BECOME WIDESPREAD EARLY THURSDAY MORNING.
THERE IS POTENTIAL FOR A LONGER PERIOD OF FREEZING RAIN ACROSS
NORTHWEST IOWA ON THURSDAY MORNING...AND ICE ACCUMULATIONS OF ONE
TO TWO TENTHS OF AN INCH ARE POSSIBLE. THE PRECIPITATION WILL
GRADUALLY CHANGE TO ALL SNOW BY MIDDAY THURSDAY...AND SNOW MAY
BECOME HEAVY AT TIMES. NORTHEAST WINDS OF 10 TO 15 MPH WILL
INCREASE TO 20 TO 30 MPH...CREATING AREAS OF BLOWING AND DRIFTING
SNOW AND DRIVING WIND CHILLS DOWN TO 10 TO 20 DEGREES BELOW ZERO
THURSDAY AFTERNOON INTO THURSDAY EVENING. FOUR TO SIX INCHES OF
SNOW ARE POSSIBLE BY THURSDAY NIGHT. STRONG NORTH WINDS WILL
GRADUALLY SUBSIDE LATE THURSDAY NIGHT.

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.

&&

$$
000 
WWUS43 KFSD 252116
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
316 PM CST WED FEB 25 2009

.PRECIPITATION WILL DEVELOP AROUND MIDNIGHT IN CENTRAL SOUTH
DAKOTA AND RAPIDLY SPREAD INTO THE JAMES VALLEY. THIS AREA OF
PRECIPITATION WILL MOVE INTO THE INTERSTATE 29 CORRIDOR BETWEEN
300 AM AND 600 AM AND INTO SOUTHWEST MINNESOTA AND NORTHWEST IOWA
BY EARLY THURSDAY MORNING. NORTH OF INTERSTATE 90...PRECIPITATION
WILL BEGIN AS A MIX OF FREEZING RAIN...SLEET AND SNOW BUT RAPIDLY
CHANGE TO ALL SNOW. ALONG AND SOUTH OF INTERSTATE 90...FREEZING
RAIN IS EXPECTED TO PERSIST FOR A FEW HOURS RESULTING IN SOME ICE
ACCUMULATION. BY EARLY AFTERNOON...PRECIPITATION IS EXPECTED TO BE
ALL SNOW EXCEPT OVER PORTIONS OF NORTHWEST IOWA...WHERE BETWEEN
ONE TENTH AND ONE QUARTER INCH OF ICE IS POSSIBLE. SNOW MAY BE
HEAVY AT TIMES IN THE MORNING AND EARLY AFTERNOON NORTH OF
INTERSTATE 90. TOTAL SNOW ACCUMULATIONS WILL RANGE FROM UP TO 3
INCHES SOUTH OF INTERSTATE 90...TO 4 TO 10 INCHES ALONG AND NORTH
OF INTERSTATE 90. THE HEAVIEST SNOWFALL WILL BE ALONG AND NORTH OF
HIGHWAY 14.

IN ADDITION TO THE SNOW...LOW PRESSURE AT THE SURFACE WILL STRENGTHEN
ACROSS THE CENTRAL PLAINS ON THURSDAY. THIS WILL INCREASE NORTHERLY
WINDS TO A GUSTY 20 TO 35 MPH. BLOWING SNOW...AND BITTERLY COLD
WIND CHILLS ARE EXPECTED TO DEVELOP AS THE DAY PROGRESSES...
ADDING TO THE HAZARDOUS WINTER WEATHER CONDITIONS.

IAZ003-MNZ089-090-260530-
/O.UPG.KFSD.WS.A.0001.090226T1200Z-090227T0300Z/
/O.EXA.KFSD.WS.W.0001.090226T0900Z-090227T0300Z/
DICKINSON-NOBLES-JACKSON-
INCLUDING THE CITIES OF...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
WORTHINGTON...JACKSON...LAKEFIELD
316 PM CST WED FEB 25 2009

...WINTER STORM WARNING IN EFFECT FROM 3 AM TO 9 PM CST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
STORM WARNING FOR FREEZING RAIN AND HEAVY SNOW...WHICH IS IN EFFECT
FROM 3 AM TO 9 PM CST THURSDAY. THE WINTER STORM WATCH IS NO
LONGER IN EFFECT.

ALONG AND SOUTH OF INTERSTATE 90...PRECIPITATION WILL BEGIN AS
FREEZING AND GRADUALLY CHANGE TO ALL SNOW BY EARLY AFTERNOON. SNOW
WILL BE HEAVY AT TIMES DURING THE LATE MORNING INTO MID AFTERNOON.
SNOWFALL WILL RANGE FROM AROUND 3 INCHES IN SPIRIT LAKE TO 6
INCHES NORTH OF INTERSTATE 90. IN ADDITION...AROUND ONE TENTH OF
AN INCH OF ICE IS POSSIBLE SOUTH OF INTERSTATE 90.

NORTH WINDS OF 20 TO 30 MPH WILL DEVELOP IN THE AFTERNOON
PRODUCING BLOWING SNOW IN OPEN AREAS...WITH WIND CHILLS FALLING TO
BELOW ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW AND ICE
ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS
WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. 

&&

$$

MNZ071-072-080-081-097-260530-
/O.CON.KFSD.WS.W.0001.090226T0900Z-090227T0300Z/
LINCOLN-LYON-MURRAY-COTTONWOOD-PIPESTONE-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
PIPESTONE
316 PM CST WED FEB 25 2009

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 AM TO 9 PM CST
THURSDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 3 AM TO 9 PM CST
THURSDAY. 

A MIX OF FREEZING RAIN...SLEET AND SNOW WILL DEVELOP LATE
TONIGHT...THEN TRANSITION TO ALL SNOW BY MID MORNING. THE SNOW
WILL BECOME HEAVY AT TIMES...ESPECIALLY BETWEEN 1000 AM CST AND
400 PM CST. SNOWFALL RATES OF AROUND 2 INCHES PER HOUR WILL BE
POSSIBLE...LEADING TOWARDS SNOWFALL TOTALS OF 6 TO 10 INCHES BY
EARLY EVENING. NORTHEAST WINDS WILL BECOME NORTHERLY AND INCREASE
TO 20 TO 30 MPH...CREATING AREAS OF BLOWING AND DRIFTING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

SDZ038>040-052>056-260530-
/O.CON.KFSD.WS.W.0001.090226T0600Z-090227T0000Z/
BEADLE-KINGSBURY-BROOKINGS-JERAULD-SANBORN-MINER-LAKE-MOODY-
INCLUDING THE CITIES OF...HURON...DE SMET...ARLINGTON...
LAKE PRESTON...BROOKINGS...WESSINGTON SPRINGS...ALPENA...
WOONSOCKET...HOWARD...MADISON...FLANDREAU
316 PM CST WED FEB 25 2009

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 PM CST THURSDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
6 PM CST THURSDAY. 

PRECIPITATION WILL BECOME WIDESPREAD AFTER MIDNIGHT TONIGHT...
FEATURING ALL SNOW TOWARD HIGHWAY 14...BUT STARTING BRIEFLY AS A
WINTRY MIX FARTHER TO THE SOUTH. SNOW WILL BECOME HEAVY AT TIMES
BY THE PRE-DAWN HOURS THURSDAY MORNING...AND CONTINUE UNTIL LATE
MORNING BEFORE TAPERING OFF ON THURSDAY AFTERNOON. NORTH WINDS OF
10 TO 15 MPH WILL INCREASE TO 20 TO 30 MPH CREATING AREAS OF
BLOWING AND DRIFTING SNOW IN THE AFTERNOON HOURS THURSDAY. SIX TO
TEN INCHES OF SNOW ARE EXPECTED BY THURSDAY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD... AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

IAZ002-014-MNZ098-260530-
/O.UPG.KFSD.WS.A.0001.090226T1200Z-090227T0300Z/
/O.EXA.KFSD.WW.Y.0010.090226T1000Z-090227T0300Z/
OSCEOLA-CLAY-ROCK-
INCLUDING THE CITIES OF...SIBLEY...SPENCER...LUVERNE
316 PM CST WED FEB 25 2009

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 9 PM CST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
WEATHER ADVISORY FOR FREEZING RAIN AND SNOW...WHICH IS IN EFFECT FROM
4 AM TO 9 PM CST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN
EFFECT.

A MIX OF SLEET AND FREEZING RAIN IS EXPECTED TO DEVELOP BETWEEN 3
AM AND 6 AM CST. THE FREEZING RAIN WILL GRADUALLY CHANGE TO SNOW
DURING THE LATE MORNING AND AFTERNOON. THE SNOW SHOULD END AROUND
SUNSET ACROSS THE AREA. SNOWFALL WILL RANGE FROM 2 INCHES SOUTH OF
SPENCER TO 6 INCHES NORTH OF LUVERNE. IN ADDITION TO THE SNOW A
TENTH TO QUARTER INCH OF ICE IS POSSIBLE AROUND SPENCER AND SIBLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

SDZ050-063-068-069-260530-
/O.EXA.KFSD.WW.Y.0010.090226T0600Z-090227T0000Z/
GREGORY-CHARLES MIX-BON HOMME-YANKTON-
INCLUDING THE CITIES OF...GREGORY...BURKE...WAGNER...PLATTE...
LAKE ANDES...MARTY...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...
TABOR...YANKTON
316 PM CST WED FEB 25 2009

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
6 PM CST THURSDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
WEATHER ADVISORY FOR FREEZING RAIN AND SNOW...WHICH IS IN EFFECT FROM
MIDNIGHT TONIGHT TO 6 PM CST THURSDAY.

AN AREA OF FREEZING RAIN...POSSIBLY MIXED WITH SLEET...WILL MOVE
INTO THE AREA AFTER MIDNIGHT. SHORTLY AFTER SUNRISE...THIS WILL
TRANSITION TO SNOW. UP TO A TENTH OF AN INCH OF ICE IS EXPECTED
WITH SNOWFALL TOTALS BY LATE AFTERNOON OF 2 TO 4. NORTHERLY WINDS
WILL ALSO INCREASE THROUGH THE DAY TO 20 TO 30 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IAZ020>022-031-032-NEZ013-014-SDZ070-071-260530-
/O.EXA.KFSD.WW.Y.0010.090226T1000Z-090227T0300Z/
PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-CLAY-
UNION-
INCLUDING THE CITIES OF...LE MARS...CHEROKEE...STORM LAKE...
SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK...WAKEFIELD...
PONCA...ALLEN...SOUTH SIOUX CITY...VERMILLION...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
316 PM CST WED FEB 25 2009

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 9 PM CST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
WEATHER ADVISORY FOR FREEZING RAIN...WHICH IS IN EFFECT FROM 4 AM TO
9 PM CST THURSDAY.

AN AREA OF FREEZING RAIN WILL MOVE INTO THE AREA AFTER 400 AM
CST...CREATING A GLAZE OF ICE AROUND A TENTH OF AN INCH ACROSS
EXPOSED SURFACES AND ROADWAYS BY MID MORNING. PRECIPITATION IS
EXPECTED TO MIX WITH SLEET AND SNOW BY EARLY AFTERNOON AND CHANGE
TO ALL SNOW BY LATE AFTERNOON. ICE ACCUMULATIONS OF A TENTH TO A
QUARTER OF AN INCH ARE EXPECTED. UP TO 2 INCHES OF SNOW IS ALSO
EXPECTED. NORTHERLY WINDS WILL ALSO INCREASE THROUGH THE DAY TO
20 TO 30 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

SDZ057>060-064-065-260530-
/O.CON.KFSD.WW.Y.0010.090226T0600Z-090227T0000Z/
BRULE-AURORA-DAVISON-HANSON-DOUGLAS-HUTCHINSON-
INCLUDING THE CITIES OF...CHAMBERLAIN...KIMBALL...PLANKINTON...
WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...ARMOUR...
CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP
316 PM CST WED FEB 25 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO 6 PM CST THURSDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 PM CST THURSDAY. 

AN AREA OF FREEZING RAIN...POSSIBLY MIXED WITH SLEET...WILL MOVE
INTO THE AREA AFTER MIDNIGHT...CREATING A GLAZE OF ICE UP TO A TENTH
OF AN INCH ON EXPOSED SURFACES AND ROADWAYS. SHORTLY AFTER
SUNRISE...THIS WILL TRANSITION TO SNOWFALL. SNOWFALL TOTALS BY
LATE AFTERNOON OF 3 TO 6 INCHES EXPECTED. NORTHERLY WINDS WILL
ALSO INCREASE THROUGH THE DAY TO 20 TO 30 MPH PRODUCING AREAS OF
BLOWING SNOW IN OPEN AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IAZ001-012-013-SDZ061-062-066-067-260530-
/O.CON.KFSD.WW.Y.0010.090226T1000Z-090227T0300Z/
LYON-SIOUX-OBRIEN-MCCOOK-MINNEHAHA-TURNER-LINCOLN-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...ORANGE CITY...SIOUX CENTER...SHELDON...HARTLEY...
SANBORN...SALEM...CANISTOTA...BRIDGEWATER...MONTROSE...
SIOUX FALLS...PARKER...CENTERVILLE...MARION...VIBORG...HURLEY...
CHANCELLOR...CANTON...LENNOX...TEA...HARRISBURG
316 PM CST WED FEB 25 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 9 PM
CST THURSDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 9 PM CST
THURSDAY. 

AN AREA OF FREEZING RAIN...POSSIBLY MIXED WITH SLEET...WILL MOVE
INTO THE AREA AFTER ABOUT 400 AM CST...CREATING A GLAZE OF ICE
AROUND A TENTH OF AN INCH ACROSS EXPOSED SURFACES AND ROADWAYS BY
MID MORNING. FROM LATE MORNING ON...THIS MIX OF PRECIPITATION
WILL TRANSITION TO SNOW. SNOW MAY BE BRIEFLY HEAVY IN THE LATE
MORNING AND EARLY AFTERNOON. TOTAL SNOWFALL WILL RANGE FROM 2
INCHES AROUND BERESFORD AND SIOUX CENTER TO 6 INCHES NORTH OF
INTERSTATE 90. NORTHERLY WINDS WILL ALSO INCREASE THROUGH THE DAY
TO 20 TO 30 MPH CREATING AREAS OF BLOWING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

SCHUMACHER
000 
WWUS43 KFSD 260228
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
828 PM CST WED FEB 25 2009

.PRECIPITATION WILL DEVELOP AFTER MIDNIGHT IN CENTRAL SOUTH
DAKOTA AND THEN SPREAD INTO THE JAMES VALLEY. THIS AREA OF
PRECIPITATION WILL MOVE INTO THE INTERSTATE 29 CORRIDOR BY 600 AM
AND INTO SOUTHWEST MINNESOTA AND NORTHWEST IOWA BY EARLY THURSDAY
MORNING. NORTH OF INTERSTATE 90...PRECIPITATION WILL BEGIN AS A
MIX OF FREEZING RAIN...SLEET AND SNOW BUT RAPIDLY CHANGE TO ALL
SNOW. ALONG AND SOUTH OF INTERSTATE 90...FREEZING RAIN IS EXPECTED
TO PERSIST FOR A FEW HOURS RESULTING IN SOME ICE ACCUMULATION. BY
EARLY AFTERNOON...PRECIPITATION IS EXPECTED TO BE ALL SNOW EXCEPT
OVER PORTIONS OF NORTHWEST IOWA...WHERE BETWEEN ONE TENTH AND ONE
QUARTER INCH OF ICE IS POSSIBLE. SNOW MAY BE HEAVY AT TIMES IN THE
MORNING AND EARLY AFTERNOON NORTH OF INTERSTATE 90. TOTAL SNOW
ACCUMULATIONS WILL RANGE FROM 1 TO 3 INCHES SOUTH OF INTERSTATE
90...TO 4 TO 10 INCHES ALONG AND NORTH OF INTERSTATE 90. THE
HEAVIEST SNOWFALL WILL BE ALONG AND NORTH OF HIGHWAY 14.

IN ADDITION TO THE SNOW...LOW PRESSURE AT THE SURFACE WILL
STRENGTHEN ACROSS THE CENTRAL PLAINS ON THURSDAY. THIS WILL
INCREASE NORTHERLY WINDS TO A GUSTY 20 TO 35 MPH. BLOWING SNOW...
AND BITTERLY COLD WIND CHILLS ARE EXPECTED TO DEVELOP AS THE DAY
PROGRESSES... ADDING TO THE HAZARDOUS WINTER WEATHER CONDITIONS.

IAZ003-MNZ071-072-080-081-089-090-097-261030-
/O.EXT.KFSD.WS.W.0001.090226T1200Z-090227T0300Z/
DICKINSON-LINCOLN-LYON-MURRAY-COTTONWOOD-NOBLES-JACKSON-PIPESTONE-
INCLUDING THE CITIES OF...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
TYLER...HENDRICKS...LAKE BENTON...IVANHOE...MARSHALL...SLAYTON...
FULDA...WINDOM...MOUNTAIN LAKE...WORTHINGTON...JACKSON...
LAKEFIELD...PIPESTONE
828 PM CST WED FEB 25 2009

...WINTER STORM WARNING NOW IN EFFECT FROM 6 AM TO 9 PM CST
THURSDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT FROM 6 AM TO 9 PM CST
THURSDAY. 

A MIX OF FREEZING RAIN...SLEET AND SNOW WILL DEVELOP TOWARDS
THURSDAY MORNING...THEN TRANSITION TO ALL SNOW BY MID MORNING.
THE SNOW WILL BECOME HEAVY AT TIMES...ESPECIALLY BETWEEN 1000 AM
CST AND 400 PM CST. SNOWFALL RATES OF AROUND 2 INCHES PER HOUR
WILL BE POSSIBLE...LEADING TOWARDS SNOWFALL TOTALS OF 6 TO 10
INCHES BY EARLY EVENING. NORTHEAST WINDS WILL BECOME NORTHERLY AND
INCREASE TO 20 TO 30 MPH...CREATING AREAS OF BLOWING AND DRIFTING
SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

SDZ038>040-052>056-261030-
/O.EXT.KFSD.WS.W.0001.090226T0800Z-090227T0000Z/
BEADLE-KINGSBURY-BROOKINGS-JERAULD-SANBORN-MINER-LAKE-MOODY-
INCLUDING THE CITIES OF...HURON...DE SMET...ARLINGTON...
LAKE PRESTON...BROOKINGS...WESSINGTON SPRINGS...ALPENA...
WOONSOCKET...HOWARD...MADISON...FLANDREAU
828 PM CST WED FEB 25 2009

...WINTER STORM WARNING NOW IN EFFECT FROM 2 AM TO 6 PM CST
THURSDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT FROM 2 AM TO 6 PM CST
THURSDAY. 

PRECIPITATION WILL BECOME WIDESPREAD AFTER MIDNIGHT TONIGHT...
FEATURING ALL SNOW TOWARD HIGHWAY 14...BUT STARTING BRIEFLY AS A
WINTRY MIX FARTHER TO THE SOUTH. SNOW WILL BECOME HEAVY AT TIMES
BY LATE TONIGHT...AND CONTINUE UNTIL LATE MORNING BEFORE TAPERING
OFF ON THURSDAY AFTERNOON. NORTH WINDS OF 10 TO 15 MPH WILL
INCREASE TO 20 TO 30 MPH CREATING AREAS OF BLOWING AND DRIFTING
SNOW IN THE AFTERNOON HOURS THURSDAY. SIX TO TEN INCHES OF SNOW
ARE EXPECTED BY THURSDAY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD... AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

SDZ057>060-064-065-261030-
/O.EXT.KFSD.WW.Y.0010.090226T0800Z-090227T0000Z/
BRULE-AURORA-DAVISON-HANSON-DOUGLAS-HUTCHINSON-
INCLUDING THE CITIES OF...CHAMBERLAIN...KIMBALL...PLANKINTON...
WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...ARMOUR...
CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP
828 PM CST WED FEB 25 2009

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 2 AM TO 6 PM CST
THURSDAY...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT FROM 2 AM TO 6 PM
CST THURSDAY. 

AN AREA OF FREEZING RAIN...POSSIBLY MIXED WITH SLEET...WILL MOVE
INTO THE AREA AFTER MIDNIGHT...CREATING A GLAZE OF ICE UP TO A
TENTH OF AN INCH ON EXPOSED SURFACES AND ROADWAYS. SHORTLY AFTER
SUNRISE...THIS WILL TRANSITION TO SNOWFALL. SNOWFALL TOTALS BY
LATE AFTERNOON OF 3 TO 6 INCHES EXPECTED. NORTHERLY WINDS WILL
ALSO INCREASE THROUGH THE DAY TO 20 TO 30 MPH PRODUCING AREAS OF
BLOWING SNOW IN OPEN AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

SDZ050-063-068-069-261030-
/O.EXT.KFSD.WW.Y.0010.090226T0800Z-090227T0000Z/
GREGORY-CHARLES MIX-BON HOMME-YANKTON-
INCLUDING THE CITIES OF...GREGORY...BURKE...WAGNER...PLATTE...
LAKE ANDES...MARTY...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...
TABOR...YANKTON
828 PM CST WED FEB 25 2009

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 2 AM TO 6 PM CST
THURSDAY...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT FROM 2 AM TO 6 PM
CST THURSDAY. 

AN AREA OF FREEZING RAIN...POSSIBLY MIXED WITH SLEET...WILL MOVE
INTO THE AREA AFTER MIDNIGHT. SHORTLY AFTER SUNRISE...THIS WILL
TRANSITION TO SNOW. UP TO A TENTH OF AN INCH OF ICE IS EXPECTED
WITH SNOWFALL TOTALS BY LATE AFTERNOON OF 2 TO 4. NORTHERLY WINDS
WILL ALSO INCREASE THROUGH THE DAY TO 20 TO 30 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IAZ001-002-012>014-MNZ098-SDZ061-062-066-067-261030-
/O.EXT.KFSD.WW.Y.0010.090226T1200Z-090227T0300Z/
LYON-OSCEOLA-SIOUX-OBRIEN-CLAY-ROCK-MCCOOK-MINNEHAHA-TURNER-
LINCOLN-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...ORANGE CITY...SIOUX CENTER...SHELDON...
HARTLEY...SANBORN...SPENCER...LUVERNE...SALEM...CANISTOTA...
BRIDGEWATER...MONTROSE...SIOUX FALLS...PARKER...CENTERVILLE...
MARION...VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG
828 PM CST WED FEB 25 2009

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 6 AM TO 9 PM CST
THURSDAY...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT FROM 6 AM TO 9 PM
CST THURSDAY. 

AN AREA OF FREEZING RAIN...POSSIBLY MIXED WITH SLEET...WILL MOVE
INTO THE AREA TOWARDS MORNING...CREATING A GLAZE OF ICE AROUND A
TENTH OF AN INCH ACROSS EXPOSED SURFACES AND ROADWAYS BY MID
MORNING. FROM LATE MORNING ON...THIS MIX OF PRECIPITATION WILL
TRANSITION TO SNOW. SNOW MAY BE BRIEFLY HEAVY IN THE LATE MORNING
AND EARLY AFTERNOON. TOTAL SNOWFALL WILL RANGE FROM 2 INCHES
AROUND BERESFORD AND SIOUX CENTER TO 6 INCHES NORTH OF INTERSTATE
90. NORTHERLY WINDS WILL ALSO INCREASE THROUGH THE DAY TO 20 TO 30
MPH CREATING AREAS OF BLOWING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IAZ020>022-031-032-NEZ013-014-SDZ070-071-261030-
/O.EXT.KFSD.WW.Y.0010.090226T1200Z-090227T0300Z/
PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-CLAY-
UNION-
INCLUDING THE CITIES OF...LE MARS...CHEROKEE...STORM LAKE...
SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK...WAKEFIELD...
PONCA...ALLEN...SOUTH SIOUX CITY...VERMILLION...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
828 PM CST WED FEB 25 2009

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 6 AM TO 9 PM CST
THURSDAY...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT FROM 6 AM TO 9 PM
CST THURSDAY. 

AN AREA OF FREEZING RAIN WILL MOVE INTO THE AREA TOWARDS MORNING...
CREATING A GLAZE OF ICE AROUND A TENTH OF AN INCH ACROSS EXPOSED
SURFACES AND ROADWAYS BY MID MORNING. PRECIPITATION IS EXPECTED TO
MIX WITH SLEET AND SNOW BY EARLY AFTERNOON AND CHANGE TO ALL SNOW
BY LATE AFTERNOON. ICE ACCUMULATIONS OF A TENTH TO A QUARTER OF AN
INCH ARE EXPECTED. UP TO 2 INCHES OF SNOW IS ALSO EXPECTED.
NORTHERLY WINDS WILL ALSO INCREASE THROUGH THE DAY TO 20 TO 30
MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
000 
WWUS43 KFSD 261036
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
436 AM CST THU FEB 26 2009

.STRONG LOW PRESSURE ALOFT MOVING ACROSS SOUTH DAKOTA AND INTO
MINNESOTA TODAY WILL PRODUCE HAZARDOUS WINTER CONDITIONS ACROSS
THE AREA. PRECIPITATION WILL CONTINUE TO BECOME MORE WIDESPREAD
VERY EARLY THIS MORNING ACROSS SOUTHEAST SOUTH DAKOTA...SPREADING
INTO SOUTHWEST MINNESOTA AND NORTHWEST IOWA DURING THE MORNING
HOURS. PRECIPITATION WILL BE PRIMARILY SNOW NORTH OF A WESSINGTON
SPRINGS TO MARSHALL MINNESOTA LINE AS PRECIPITATION DEVELOPS...
WITH MORE OF A SLEET AND FREEZING RAIN MIX SOUTH. SOME ICE
ACCUMULATIONS UP TO A TENTH OF AN INCH WILL BE POSSIBLE FROM
AROUND INTERSTATE 90 SOUTHWARD...GREATEST ACROSS PORTIONS OF
NORTHWEST IOWA.  WITH ISOLATED THUNDERSTORMS POSSIBLE NEAR AND
SOUTH OF INTERSTATE 90...SOME BRIEF PERIODS OF HEAVY SLEET OR
CONVECTIVE SNOWS ARE POSSIBLE. THE TRANSITION TO SNOW WILL
PROGRESS GRADUALLY TO THE SOUTH AND EAST THROUGH THE MORNING...
WITH MOST PRECIPITATION IN THE FORM OF SNOW BY EARLY
AFTERNOON...WITH EXCEPTIONS OF SOUTHERN PORTIONS OF NORTHWEST
IOWA. MOST OF THE SNOW DURING THE AFTERNOON HOURS WILL FOCUS
THROUGH SOUTHWEST MINNESOTA AND TOWARD THE IOWA GREAT LAKES.

THE HEAVIEST SNOWFALL THREAT APPEARS TO HAVE SHIFTED SOMEWHAT
NORTHWARD FROM PREVIOUS EXPECTATIONS...WITH 5 TO 7 INCHES LIMITED
TO AREAS ALONG AND NORTH OF U.S. HIGHWAY 14 TOWARD THE WINDOM
AREA...WITH AN INCH TO TWO NEAR INTERSTATE 90 IN SOUTH DAKOTA...
AND LESS THAN AN INCH NEAR THE MISSOURI RIVER.

IN ADDITION TO THE SNOW...LOW PRESSURE AT THE SURFACE WILL
STRENGTHEN ACROSS THE CENTRAL PLAINS TODAY. THIS WILL INCREASE
NORTHERLY WINDS TO A GUSTY 20 TO 30 MPH. AREAS OF BLOWING SNOW...
AND BITTERLY COLD WIND CHILLS ARE EXPECTED TO DEVELOP AS THE DAY
PROGRESSES...ADDING TO THE HAZARDOUS WINTER WEATHER CONDITIONS.

SDZ052-053-261845-
/O.CAN.KFSD.WS.W.0001.000000T0000Z-090227T0000Z/
/O.EXB.KFSD.WW.Y.0010.000000T0000Z-090226T1900Z/
JERAULD-SANBORN-
INCLUDING THE CITIES OF...WESSINGTON SPRINGS...ALPENA...
WOONSOCKET
436 AM CST THU FEB 26 2009

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 1 PM CST THIS
AFTERNOON...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOWFALL...WHICH IS IN EFFECT UNTIL 1 PM CST THIS
AFTERNOON. THE WINTER STORM WARNING HAS BEEN CANCELLED.

SNOW WILL CONTINUE...BRIEFLY HEAVY...BEFORE TAPERING OFF DURING
THE MORNING. TOTAL SNOWFALL IS EXPECTED TO RANGE FROM 2 TO 4
INCHES. THE SNOW MAY BE BRIEFLY MIXED WITH SLEET OR FREEZING RAIN
AT THE ONSET. NORTHERLY WINDS WILL ALSO INCREASE THROUGH THE DAY
TO 20 TO 30 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

SDZ054>056-261845-
/O.CAN.KFSD.WS.W.0001.000000T0000Z-090227T0000Z/
/O.EXB.KFSD.WW.Y.0010.090226T1200Z-090226T2200Z/
MINER-LAKE-MOODY-
INCLUDING THE CITIES OF...HOWARD...MADISON...FLANDREAU
436 AM CST THU FEB 26 2009

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 PM CST THIS
AFTERNOON...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
WEATHER ADVISORY FOR MIXED PRECIPITATION...WHICH IS IN EFFECT
UNTIL 4 PM CST THIS AFTERNOON. THE WINTER STORM WARNING HAS BEEN
CANCELLED.

A MIXTURE OF FREEZING RAIN...SLEET AND SNOW IS EXPECTED TO SPREAD
IN DURING THE PREDAWN HOURS...CHANGING QUICKLY TO SNOW EARLY THIS
MORNING. AN ISOLATED RUMBLE OF THUNDER MAY RESULT IN SOME QUICK
ACCUMULATIONS OF SNOW OR SLEET EARLY. SNOW WILL TAPER OFF FOR A
TIME...BUT IS EXPECTED TO CONTINUE AT A LESSER PACE AT TIMES
THROUGH THE AFTERNOON. TOTAL SNOW ACCUMULATION OF 3 TO 5 INCHES IS
EXPECTED. NORTHEAST WINDS WILL BECOME NORTH AND INCREASE TO A
GUSTY 20 TO 30 MPH...CREATING AREAS OF BLOWING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IAZ003-MNZ089-090-261845-
/O.CAN.KFSD.WS.W.0001.090226T1200Z-090227T0300Z/
/O.EXA.KFSD.WW.Y.0010.090226T1200Z-090227T0300Z/
DICKINSON-NOBLES-JACKSON-
INCLUDING THE CITIES OF...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
WORTHINGTON...JACKSON...LAKEFIELD
436 AM CST THU FEB 26 2009

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 PM CST THIS
EVENING...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
WEATHER ADVISORY FOR MIXED PRECIPITATION...WHICH IS IN EFFECT
UNTIL 9 PM CST THIS EVENING. THE WINTER STORM WARNING HAS BEEN
CANCELLED.

AN AREA OF FREEZING RAIN...POSSIBLY MIXED WITH SLEET...WILL MOVE
INTO THE AREA EARLY THIS MORNING...CREATING A GLAZE OF ICE UP TO A
TENTH OF AN INCH ACROSS EXPOSED SURFACES AND ROADWAYS BY MID
MORNING. FROM LATE MORNING ON...THIS MIX OF PRECIPITATION WILL
TRANSITION TO SNOW. SNOW MAY BE BRIEFLY HEAVY IN THE LATE MORNING
AND EARLY AFTERNOON. TOTAL SNOWFALL WILL RANGE FROM 3 TO 5
INCHES...GREATEST NORTH OF INTERSTATE 90. NORTHERLY WINDS WILL
ALSO INCREASE THROUGH THE DAY TO 20 TO 30 MPH CREATING AREAS OF
BLOWING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

SDZ038>040-261845-
/O.EXT.KFSD.WS.W.0001.000000T0000Z-090226T2200Z/
BEADLE-KINGSBURY-BROOKINGS-
INCLUDING THE CITIES OF...HURON...DE SMET...ARLINGTON...
LAKE PRESTON...BROOKINGS
436 AM CST THU FEB 26 2009

...WINTER STORM WARNING NOW IN EFFECT UNTIL 4 PM CST THIS
AFTERNOON...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 4 PM CST THIS
AFTERNOON. 

SNOW...HEAVY AT TIMES...WILL CONTINUE EARLY THIS MORNING...PERHAPS
ACCOMPANIED BY THUNDER WITH SNOWFALL RATE OF 2 TO 3 INCHES PER HOUR
EARLY THIS MORNING. WHILE SNOW MAY TAPER OFF FOR A TIME...SNOW IS
EXPECTED TO CONTINUE AT TIMES INTO THE AFTERNOON...ESPECIALLY
TOWARD THE MINNESOTA BORDER. NORTHEAST WINDS OF 10 TO 15 MPH WILL
BECOME NORTH AND INCREASE TO 20 TO 30 MPH CREATING AREAS OF
BLOWING AND DRIFTING SNOW IN THE AFTERNOON HOURS THURSDAY. FOUR TO
SEVEN INCHES OF SNOW ARE EXPECTED BY LATE THURSDAY AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD... AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

MNZ071-072-080-081-097-261845-
/O.CON.KFSD.WS.W.0001.090226T1200Z-090227T0300Z/
LINCOLN-LYON-MURRAY-COTTONWOOD-PIPESTONE-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
PIPESTONE
436 AM CST THU FEB 26 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING. 

SNOWFALL IS EXPECTED TO SPREAD INTO THE AREA EARLY THIS MORNING. A
BRIEF PERIOD OF FREEZING RAIN OR SLEET IS POSSIBLE NEAR THE ONSET
OF PRECIPITATION. SNOW WILL BECOME HEAVY AT TIMES...ESPECIALLY
BETWEEN 800 AM CST AND NOON CST. SNOWFALL RATES OF AROUND 2 INCHES
PER HOUR WILL BE POSSIBLE...LEADING TOWARDS SNOWFALL TOTALS OF 5 TO
7 INCHES BY EARLY EVENING. NORTHEAST WINDS WILL BECOME NORTHERLY
AND INCREASE TO 20 TO 30 MPH...CREATING AREAS OF BLOWING AND
DRIFTING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

IAZ002-013-014-021-022-032-261845-
/O.EXT.KFSD.WW.Y.0010.090226T1200Z-090227T0000Z/
OSCEOLA-OBRIEN-CLAY-CHEROKEE-BUENA VISTA-IDA-
INCLUDING THE CITIES OF...SIBLEY...SHELDON...HARTLEY...SANBORN...
SPENCER...CHEROKEE...STORM LAKE...IDA GROVE...HOLSTEIN...
BATTLE CREEK
436 AM CST THU FEB 26 2009

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 PM CST THIS
EVENING...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 6 PM CST THIS
EVENING. 

AN AREA OF FREEZING RAIN...POSSIBLY MIXED WITH SLEET...WILL MOVE
INTO THE AREA EARLY THIS MORNING...CREATING A GLAZE OF ICE AROUND
A TENTH OF AN INCH ACROSS EXPOSED SURFACES AND ROADWAYS BY MID
MORNING. FROM LATE MORNING ON...THIS MIX OF PRECIPITATION WILL
TRANSITION TO SNOW. SNOW MAY BE BRIEFLY HEAVY IN THE LATE
MORNING...AND MAY BE ACCOMPANIED BY THUNDER. TOTAL SNOWFALL WILL
RANGE FROM 2 INCHES AROUND SPENCER AND SANBORN...TO LESS THAN AN
INCH NEAR IDA GROVE. WINDS WILL ALSO BECOME NORTHERLY THIS
AFTERNOON AT 20 TO 30 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

SDZ057>060-064-065-261845-
/O.EXT.KFSD.WW.Y.0010.000000T0000Z-090226T1900Z/
BRULE-AURORA-DAVISON-HANSON-DOUGLAS-HUTCHINSON-
INCLUDING THE CITIES OF...CHAMBERLAIN...KIMBALL...PLANKINTON...
WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...ARMOUR...
CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP
436 AM CST THU FEB 26 2009

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 1 PM CST THIS
AFTERNOON...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 1 PM CST THIS
AFTERNOON. 

A MIX OF FREEZING RAIN...SLEET AND SNOW WILL CHANGE TO ALL SNOW
THIS MORNING BEFORE TAPERING OFF. A GLAZE OF ICE UP TO A TENTH OF
AN INCH ON EXPOSED SURFACES AND ROADWAYS IS LIKELY. SNOWFALL
TOTALS BY EARLY AFTERNOON WILL GENERALLY TOP OUT AROUND TWO INCHES
NEAR INTERSTATE 90...WITH LESSER AMOUNTS TO THE SOUTH. HOWEVER...LOCAL
SPOTS WHICH MAY EXPERIENCE PREDAWN THUNDER COULD GET LOCALLY
HEAVIER AMOUNTS. NORTHERLY WINDS WILL ALSO INCREASE THROUGH THE
DAY TO 20 TO 30 MPH PRODUCING AREAS OF BLOWING SNOW IN OPEN AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IAZ001-012-MNZ098-SDZ061-062-066-067-261845-
/O.EXT.KFSD.WW.Y.0010.090226T1200Z-090226T2200Z/
LYON-SIOUX-ROCK-MCCOOK-MINNEHAHA-TURNER-LINCOLN-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...ORANGE CITY...SIOUX CENTER...LUVERNE...SALEM...
CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS...PARKER...
CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...CANTON...
LENNOX...TEA...HARRISBURG
436 AM CST THU FEB 26 2009

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 PM CST THIS
AFTERNOON...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 4 PM CST THIS
AFTERNOON. 

AN AREA OF FREEZING RAIN AND SLEET WILL MOVE INTO THE AREA IN THE
PREDAWN HOURS...CREATING A GLAZE OF ICE UP TO A TENTH OF AN INCH
ACROSS EXPOSED SURFACES AND ROADWAYS BY MID MORNING. ISOLATED
THUNDERSTORMS COULD CREATE BRIEFLY HEAVIER SLEET OR
SNOWFALL...WITH VERY LOW VISIBILITIES AROUND THE MORNING RUSH. FROM
LATE MORNING ON...THIS MIX OF PRECIPITATION WILL TRANSITION TO
SNOW AS IT BEGINS TO TAPER OFF...WHICH SHOULD LIMIT THE TOTAL SNOW
ACCUMULATIONS TO 2 TO 3 INCHES NORTH OF INTERSTATE 90...AND AN
INCH OR TWO SOUTH OF INTERSTATE 90. WINDS WILL ALSO BECOMING
NORTHERLY AND INCREASE THROUGH THE DAY TO 20 TO 30 MPH CREATING
AREAS OF BLOWING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

SDZ050-063-068-069-261845-
/O.EXT.KFSD.WW.Y.0010.000000T0000Z-090226T1900Z/
GREGORY-CHARLES MIX-BON HOMME-YANKTON-
INCLUDING THE CITIES OF...GREGORY...BURKE...WAGNER...PLATTE...
LAKE ANDES...MARTY...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...
TABOR...YANKTON
436 AM CST THU FEB 26 2009

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 1 PM CST THIS
AFTERNOON...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 1 PM CST THIS
AFTERNOON. 

AN AREA OF FREEZING RAIN...POSSIBLY MIXED WITH SLEET OR SNOW WILL
CONTINUE EARLY THIS MORNING BEFORE TAPERING OFF. ISOLATED
THUNDERSTORMS MAY PRODUCE HEAVIER SLEET OR A CHANGE TO SNOW...
GREATLY REDUCING VISIBILITIES FOR A SHORT TIME. A GLAZE OF A
TENTH OF AN INCH OF ICING IS LIKELY ON ROADWAYS. SNOWFALL TOTALS
WILL GENERALLY BE LESS THAN AN INCH. EAST WINDS WILL BECOME
NORTHERLY AND INCREASE THROUGH THE DAY TO 20 TO 30 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IAZ020-031-NEZ013-014-SDZ070-071-261845-
/O.EXT.KFSD.WW.Y.0010.090226T1200Z-090226T1900Z/
PLYMOUTH-WOODBURY-DIXON-DAKOTA-CLAY-UNION-
INCLUDING THE CITIES OF...LE MARS...SIOUX CITY...WAKEFIELD...
PONCA...ALLEN...SOUTH SIOUX CITY...VERMILLION...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
436 AM CST THU FEB 26 2009

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 1 PM CST THIS
AFTERNOON...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 1 PM CST THIS
AFTERNOON. 

AN AREA OF SHOWERY PRECIPITATION WILL SPREAD INTO THE LOWER
MISSOURI VALLEY EARLY THIS MORNING. WITH TEMPERATURES NEAR
FREEZING... SHOWERS WILL LIKELY CREATE A GLAZE OF ICE UP TO A
TENTH OF AN INCH ACROSS EXPOSED SURFACES AND ROADWAYS BY MID
MORNING. ISOLATED THUNDERSTORMS WILL ALSO PRODUCE SPOTTY
ACCUMULATIONS OF SLEET OR SNOW...BUT IN GENERAL...LESS THAN AN
INCH OF SNOW IS EXPECTED. WINDS WILL BECOME NORTHERLY THROUGH THE
DAY AND INCREASE TO 20 TO 30 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

JC
000 
WWUS43 KFSD 261634
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1034 AM CST THU FEB 26 2009

.LOW PRESSURE WILL MOVE ACROSS THE CENTRAL PLAINS TODAY...WITH
CANADIAN HIGH PRESSURE OOZING DOWN FROM THE NORTH. IN BETWEEN
THESE SYSTEMS...SNOW AND A WINTRY MIX OF PRECIPITATION WILL
CONTINUE IN MUCH OF SOUTHWEST MINNESOTA AND NORTHWEST IOWA THROUGH
THE AFTERNOON...WITH PRECIPITATION TAPERING OFF OR ENDING IN THE
SOUTHEAST QUARTER OF SOUTH DAKOTA AND EXTREME NORTHEAST NEBRASKA.
COLD ARCTIC AIR WILL PLUNGE SOUTHWARD THROUGH SOUTH DAKOTA DURING
THE MIDDAY HOURS...SPREADING EAST AND SOUTH INTO NORTHWEST IOWA
AND SOUTHWEST MINNESOTA THIS AFTERNOON.

SDZ038>040-262200-
/O.CAN.KFSD.WS.W.0001.000000T0000Z-090226T2200Z/
/O.EXA.KFSD.WW.Y.0010.000000T0000Z-090226T2200Z/
BEADLE-KINGSBURY-BROOKINGS-
INCLUDING THE CITIES OF...HURON...DE SMET...ARLINGTON...
LAKE PRESTON...BROOKINGS
1034 AM CST THU FEB 26 2009

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 PM CST THIS
AFTERNOON...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND AREAS OF BLOWING SNOW...IS IN
EFFECT UNTIL 4 PM CST THIS AFTERNOON. THE WINTER STORM WARNING HAS
BEEN CANCELED.

TOTAL SNOW ACCUMULATIONS IN EAST CENTRAL SOUTH DAKOTA OF 3 TO 5
INCHES WILL BE COMMON...WITH VERY LITTLE ADDITIONAL ACCUMULATIONS
THIS AFTERNOON. HOWEVER WITH WINDS AVERAGING 20 TO 35 MPH...AREAS
OF BLOWING SNOW WILL BE A CONCERN ALONG WITH WIND CHILL VALUES OF
10 BELOW TO 20 BELOW ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IAZ003-MNZ089-090-270045-
/O.UPG.KFSD.WW.Y.0010.000000T0000Z-090227T0300Z/
/O.EXA.KFSD.WS.W.0001.000000T0000Z-090227T0300Z/
DICKINSON-NOBLES-JACKSON-
INCLUDING THE CITIES OF...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
WORTHINGTON...JACKSON...LAKEFIELD
1034 AM CST THU FEB 26 2009

...WINTER STORM WARNING IN EFFECT UNTIL 9 PM CST THIS EVENING...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW AND AREAS OF SLEET AND FREEZING RAIN...
WHICH IS IN EFFECT UNTIL 9 PM CST THIS EVENING. THE WINTER WEATHER
ADVISORY IS NO LONGER IN EFFECT.

SNOW WILL BE HEAVY AT TIMES THROUGH THE MIDDAY HOURS...THEN WILL
BEGIN TO TAPER OFF THIS AFTERNOON. 4 TO 7 INCHES OF SNOWFALL WILL
BE COMMON IN THIS AREA. THE HEAVIER SNOW AMOUNTS WILL BE
ASSOCIATED WITH CONVECTIVE CONDITIONS INCLUDING THUNDER THROUGH
MIDDAY. IN ADDITION IN AREAS OF LIGHTER PRECIPITATION...SLEET AND
FREEZING RAIN IS A CONCERN. ICE ACCUMULATIONS SHOULD STAY LESS
THEN 2 TENTHS OF AN INCH. WHILE THE PRECIPITATION TAPERS OFF LATER
THIS AFTERNOON...THE NORTH WINDS WILL INCREASE TO 20 TO 35 MPH
CREATING BLOWING SNOW. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST IN A SHORT PERIOD OF TIME THAT WILL MAKE TRAVEL
DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP
AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF
AN EMERGENCY.

&&

$$

MNZ071-072-080-081-097-270045-
/O.CON.KFSD.WS.W.0001.000000T0000Z-090227T0300Z/
LINCOLN-LYON-MURRAY-COTTONWOOD-PIPESTONE-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
PIPESTONE
1034 AM CST THU FEB 26 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING. 

SNOW...HEAVY AT TIMES...WILL FALL IN SOUTHWEST MINNESOTA THROUGH
EARLY AFTERNOON...THEN WILL DECREASE IN INTENSITY. LIGHT SNOW WILL
LIKELY LINGER INTO THE EVENING HOURS. 4 TO 7 INCHES OF SNOW WILL
BE COMMON IN THESE AREAS. WHEN THE SNOW DECREASES THROUGH THE
AFTERNOON HOURS...THE NORTH WINDS WILL INCREASE TO 20 TO 35 MPH
CREATING BLOWING AND DRIFTING SNOW. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

IAZ002-013-014-021-022-032-270000-
/O.CON.KFSD.WW.Y.0010.000000T0000Z-090227T0000Z/
OSCEOLA-OBRIEN-CLAY-CHEROKEE-BUENA VISTA-IDA-
INCLUDING THE CITIES OF...SIBLEY...SHELDON...HARTLEY...SANBORN...
SPENCER...CHEROKEE...STORM LAKE...IDA GROVE...HOLSTEIN...
BATTLE CREEK
1034 AM CST THU FEB 26 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING. 

A WINTRY MIX OF PRECIPITATION WILL FALL IN THE IOWA GREAT LAKES
REGION TO AROUND STORM LAKE VICINITY THIS AFTERNOON. THE
PRECIPITATION INTENSITY WILL DECREASE RAPIDLY BY MIDDAY...LEAVING
ONLY LIGHT PRECIPITATION THIS AFTERNOON. HOWEVER IN THE LATE
MORNING HOURS...A QUICK NEAR QUARTER OF AN INCH OF ICE WILL FALL
IN SOME AREAS NORTH OF STORM LAKE. SLEET WILL ALSO BE A
POSSIBILITY IN MANY AREAS WITH EVEN A BIT OF SNOW THIS AFTERNOON.
TOTAL SNOW ACCUMULATIONS IN THIS AREA WILL LIKELY BE IN THE 1 TO 3
INCH RANGE. BUT AGAIN...SLEET AND ICE ACCUMULATIONS COULD BE
INTENSE AT TIMES THROUGH MIDDAY ASSOCIATED WITH THUNDERSTORMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

SDZ052-053-057>060-064-065-261900-
/O.CON.KFSD.WW.Y.0010.000000T0000Z-090226T1900Z/
JERAULD-SANBORN-BRULE-AURORA-DAVISON-HANSON-DOUGLAS-HUTCHINSON-
INCLUDING THE CITIES OF...WESSINGTON SPRINGS...ALPENA...
WOONSOCKET...CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...
STICKNEY...MITCHELL...ALEXANDRIA...EMERY...ARMOUR...CORSICA...
DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP
1034 AM CST THU FEB 26 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM CST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM CST THIS
AFTERNOON. 

ANY REMAINING PRECIPITATION WILL LIKELY FALL IN THE FORM OF
FLURRIES OR LIGHT FREEZING DRIZZLE THROUGH MIDDAY. HOWEVER MOST 
AREAS HAVE ALREADY RECEIVED A LIGHT GLAZE ON SURFACES MAKING
TRAVEL DIFFICULT ON UNTREATED ROADS. THEREFORE THE WINTER WEATHER
ADVISORY WILL REMAIN IN EFFECT UNTIL EARLY AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IAZ001-012-MNZ098-SDZ054>056-061-062-066-067-262200-
/O.CON.KFSD.WW.Y.0010.000000T0000Z-090226T2200Z/
LYON-SIOUX-ROCK-MINER-LAKE-MOODY-MCCOOK-MINNEHAHA-TURNER-LINCOLN-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...ORANGE CITY...SIOUX CENTER...LUVERNE...HOWARD...
MADISON...FLANDREAU...SALEM...CANISTOTA...BRIDGEWATER...
MONTROSE...SIOUX FALLS...PARKER...CENTERVILLE...MARION...VIBORG...
HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...HARRISBURG
1034 AM CST THU FEB 26 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM CST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM CST THIS
AFTERNOON. 

A MIXTURE OF FREEZING RAIN...SLEET AND SNOW WILL DECREASE IN
INTENSITY THROUGH THE LATE MORNING AND MIDDAY HOURS. THEREFORE
ADDITIONAL PRECIPITATION THIS AFTERNOON WILL BE MINIMAL. GENERAL
SNOW AMOUNTS IN THIS AREA WILL MAINLY BE LESS THAN 2 INCHES.
HOWEVER UNTREATED ROAD SURFACES ARE BEING IMPACTED BY PERIODIC
SLEET AND LIGHT FREEZING RAIN. TEMPERATURES WILL ALSO BEGIN TO
PLUMMET THIS AFTERNOON WITH ARCTIC AIR DRAINING SOUTHWARD.
THEREFORE WIND CHILL READINGS WILL AVERAGE ZERO TO 10 BELOW ZERO
BY MID AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

SDZ050-063-068-069-261900-
/O.CON.KFSD.WW.Y.0010.000000T0000Z-090226T1900Z/
GREGORY-CHARLES MIX-BON HOMME-YANKTON-
INCLUDING THE CITIES OF...GREGORY...BURKE...WAGNER...PLATTE...
LAKE ANDES...MARTY...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...
TABOR...YANKTON
1034 AM CST THU FEB 26 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM CST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM CST THIS
AFTERNOON. 

ANY REMAINING PRECIPITATION WILL LIKELY FALL IN THE FORM OF
FLURRIES OR LIGHT FREEZING DRIZZLE THROUGH MIDDAY. HOWEVER MOST 
AREAS HAVE ALREADY RECEIVED A GLAZE OF ICE ON UNTREATED SURFACES
MAKING TRAVEL DIFFICULT. THEREFORE THE WINTER WEATHER ADVISORY
WILL REMAIN IN EFFECT UNTIL EARLY AFTERNOON. TEMPERATURES WILL ALSO 
BEGIN TO PLUMMET THIS AFTERNOON WITH ARCTIC AIR DRAINING
SOUTHWARD. THEREFORE WIND CHILL READINGS WILL AVERAGE ZERO TO 10
BELOW ZERO BY MID AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IAZ020-031-NEZ013-014-SDZ070-071-261900-
/O.CON.KFSD.WW.Y.0010.000000T0000Z-090226T1900Z/
PLYMOUTH-WOODBURY-DIXON-DAKOTA-CLAY-UNION-
INCLUDING THE CITIES OF...LE MARS...SIOUX CITY...WAKEFIELD...
PONCA...ALLEN...SOUTH SIOUX CITY...VERMILLION...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
1034 AM CST THU FEB 26 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM CST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM CST THIS
AFTERNOON. 

ANY REMAINING PRECIPITATION WILL LIKELY FALL IN THE FORM OF
FLURRIES OR LIGHT FREEZING DRIZZLE THROUGH MIDDAY. HOWEVER MOST 
AREAS HAVE ALREADY RECEIVED A GLAZE OF ICE ON UNTREATED SURFACES
MAKING TRAVEL DIFFICULT. THEREFORE THE WINTER WEATHER ADVISORY
WILL REMAIN IN EFFECT UNTIL EARLY AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

 MJF
000 
WWUS43 KFSD 262204
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
404 PM CST THU FEB 26 2009

.LOW PRESSURE OVER THE CENTRAL PLAINS WILL CONTINUE TO LIFT 
NORTHEAST THROUGH THE MID-MISSISSIPPI VALLEY TONIGHT...WHILE 
CANADIAN HIGH PRESSURE BUILDS DOWN INTO THE NORTHERN PLAINS. BETWEEN 
THESE FEATURES...STRONG NORTH TO NORTHWEST WINDS WILL CREATE AREAS 
OF BLOWING SNOW INTO THE EVENING HOURS...WITH SHARPLY COLDER WIND 
CHILL VALUES EXPECTED OVERNIGHT. ADDITIONAL LIGHT SNOW ACCUMULATIONS 
WILL BE POSSIBLE INTO THE EVENING OVER PARTS OF SOUTHWEST MINNESOTA.

IAZ003-MNZ089-262315-
/O.CAN.KFSD.WS.W.0001.000000T0000Z-090227T0300Z/
DICKINSON-NOBLES-
INCLUDING THE CITIES OF...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
WORTHINGTON
404 PM CST THU FEB 26 2009

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS CANCELLED THE
WINTER STORM WARNING. 

AREAS OF BLOWING SNOW WILL BE POSSIBLE INTO THE EVENING HOURS...AS 
NORTHERLY WINDS INCREASE TO 20 TO 35 MPH. HOWEVER...THE FALLING SNOW 
HAS DIMINISHED AND LITTLE IF ANY ADDITIONAL SNOW ACCUMULATION IS 
EXPECTED THROUGH THE LATE AFTERNOON AND EVENING. THEREFORE THE 
WINTER STORM WARNING HAS BEEN CANCELLED. 

$$

IAZ002-013-014-021-022-032-262315-
/O.CAN.KFSD.WW.Y.0010.000000T0000Z-090227T0000Z/
OSCEOLA-OBRIEN-CLAY-CHEROKEE-BUENA VISTA-IDA-
INCLUDING THE CITIES OF...SIBLEY...SHELDON...HARTLEY...SANBORN...
SPENCER...CHEROKEE...STORM LAKE...IDA GROVE...HOLSTEIN...
BATTLE CREEK
404 PM CST THU FEB 26 2009

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS CANCELLED THE
WINTER WEATHER ADVISORY. 

THE WINTRY MIX HAS DIMINISHED OR ENDED...AND LITTLE IF ANY 
ADDITIONAL SNOW OR ICE ACCUMULATION IS EXPECTED THROUGH THE LATE 
AFTERNOON AND EVENING. THEREFORE THE WINTER WEATHER ADVISORY HAS 
BEEN CANCELLED. 

$$

SDZ038>040-054>056-270615-
/O.EXP.KFSD.WW.Y.0010.000000T0000Z-090226T2200Z/
/O.NEW.KFSD.WC.Y.0006.090227T0000Z-090227T1300Z/
BEADLE-KINGSBURY-BROOKINGS-MINER-LAKE-MOODY-
INCLUDING THE CITIES OF...HURON...DE SMET...ARLINGTON...
LAKE PRESTON...BROOKINGS...HOWARD...MADISON...FLANDREAU
404 PM CST THU FEB 26 2009

...WIND CHILL ADVISORY IN EFFECT UNTIL 7 AM CST FRIDAY...
...WINTER WEATHER ADVISORY HAS EXPIRED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WIND
CHILL ADVISORY...WHICH IS IN EFFECT UNTIL 7 AM CST FRIDAY. THE
WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. 

AREAS OF BLOWING SNOW WILL BE POSSIBLE INTO THE EVENING HOURS...AS 
NORTHERLY WINDS INCREASE TO 20 TO 30 MPH. HOWEVER...THE FALLING SNOW 
HAS DIMINISHED AND LITTLE IF ANY ADDITIONAL SNOW ACCUMULATION IS 
EXPECTED THROUGH THE LATE AFTERNOON AND EVENING. THEREFORE THE 
WINTER WEATHER ADVISORY HAS BEEN ALLOWED TO EXPIRE.

AS TEMPERATURES FALL INTO THE SINGLE DIGITS BELOW ZERO TONIGHT... 
THE LINGERING NORTH WIND WILL CREATE DANGEROUS WIND CHILL VALUES OF 
20 BELOW TO 30 BELOW ZERO. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY IS ISSUED WHEN A STRONG WIND WILL COMBINE
WITH COLD TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR
EXPOSED SKIN.  THE WIND WILL MAKE IT FEEL LIKE IT IS 20 DEGREES
BELOW ZERO OR COLDER FOR A PERIOD OF SEVERAL HOURS.  THOSE
PLANNING TO VENTURE OUTDOORS SHOULD DRESS WARMLY...MAKING SURE
THAT ALL EXPOSED SKIN IS COVERED.

&&

$$

IAZ001-012-MNZ098-SDZ061-062-066-067-262315-
/O.EXP.KFSD.WW.Y.0010.000000T0000Z-090226T2200Z/
LYON-SIOUX-ROCK-MCCOOK-MINNEHAHA-TURNER-LINCOLN-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...ORANGE CITY...SIOUX CENTER...LUVERNE...SALEM...
CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS...PARKER...
CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...CANTON...
LENNOX...TEA...HARRISBURG
404 PM CST THU FEB 26 2009

...WINTER WEATHER ADVISORY HAS EXPIRED...

THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. 

AREAS OF BLOWING SNOW WILL BE POSSIBLE INTO THE EVENING HOURS...AS 
NORTHERLY WINDS INCREASE TO 20 TO 30 MPH. HOWEVER...THE FALLING SNOW 
HAS DIMINISHED AND LITTLE IF ANY ADDITIONAL SNOW ACCUMULATION IS 
EXPECTED THROUGH THE LATE AFTERNOON AND EVENING. THEREFORE THE 
WINTER WEATHER ADVISORY HAS BEEN ALLOWED TO EXPIRE. 

$$

MNZ071-072-080-097-270615-
/O.NEW.KFSD.WC.Y.0006.090227T0600Z-090227T1300Z/
/O.CON.KFSD.WS.W.0001.000000T0000Z-090227T0300Z/
LINCOLN-LYON-MURRAY-PIPESTONE-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...SLAYTON...FULDA...PIPESTONE
404 PM CST THU FEB 26 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...
...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM
CST FRIDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WIND
CHILL ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM
CST FRIDAY. A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM
CST THIS EVENING. 

ANOTHER BAND OF GENERALLY LIGHT SNOW WILL SWING ACROSS SOUTHWEST 
MINNESOTA THIS EVENING. ANY ADDITIONAL SNOW ACCUMULATION IS EXPECTED 
TO REMAIN LESS THAN AN INCH. IN ADDITION TO ANY FALLING SNOW...NORTH 
WINDS WILL INCREASE TO 20 TO 35 MPH CREATING BLOWING AND DRIFTING 
SNOW.

AS TEMPERATURES FALL TO JUST BELOW ZERO LATER TONIGHT...THE 
LINGERING NORTH WIND WILL CREATE DANGEROUS WIND CHILL VALUES OF
20 BELOW TO 30 BELOW ZERO. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

A WIND CHILL ADVISORY IS ISSUED WHEN A STRONG WIND WILL COMBINE
WITH COLD TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR
EXPOSED SKIN.  THE WIND WILL MAKE IT FEEL LIKE IT IS 20 DEGREES
BELOW ZERO OR COLDER FOR A PERIOD OF SEVERAL HOURS.  THOSE
PLANNING TO VENTURE OUTDOORS SHOULD DRESS WARMLY...MAKING SURE
THAT ALL EXPOSED SKIN IS COVERED.

&&

$$

MNZ081-090-270300-
/O.CON.KFSD.WS.W.0001.000000T0000Z-090227T0300Z/
COTTONWOOD-JACKSON-
INCLUDING THE CITIES OF...WINDOM...MOUNTAIN LAKE...JACKSON...
LAKEFIELD
404 PM CST THU FEB 26 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM CST THIS
EVENING. 

ANOTHER BAND OF GENERALLY LIGHT SNOW WILL SWING ACROSS SOUTHWEST 
MINNESOTA THIS EVENING. ANY ADDITIONAL SNOW ACCUMULATION IS EXPECTED 
TO REMAIN LESS THAN AN INCH. IN ADDITION TO ANY FALLING SNOW...NORTH 
WINDS WILL INCREASE TO 20 TO 35 MPH CREATING BLOWING AND DRIFTING 
SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

SDZ052-053-057>060-270615-
/O.NEW.KFSD.WC.Y.0006.090227T0000Z-090227T1300Z/
JERAULD-SANBORN-BRULE-AURORA-DAVISON-HANSON-
INCLUDING THE CITIES OF...WESSINGTON SPRINGS...ALPENA...
WOONSOCKET...CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...
STICKNEY...MITCHELL...ALEXANDRIA...EMERY
404 PM CST THU FEB 26 2009

...WIND CHILL ADVISORY IN EFFECT UNTIL 7 AM CST FRIDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WIND
CHILL ADVISORY...WHICH IS IN EFFECT UNTIL 7 AM CST FRIDAY. 

TEMPERATURES WILL FALL INTO THE SINGLE DIGITS BELOW ZERO TONIGHT. 
THESE COLDER TEMPERATURES COMBINED WITH A LINGERING NORTH WIND WILL 
CREATE DANGEROUS WIND CHILL VALUES OF 20 BELOW TO 30 BELOW ZERO. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY IS ISSUED WHEN A STRONG WIND WILL COMBINE
WITH COLD TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR
EXPOSED SKIN.  THE WIND WILL MAKE IT FEEL LIKE IT IS 20 DEGREES
BELOW ZERO OR COLDER FOR A PERIOD OF SEVERAL HOURS.  THOSE
PLANNING TO VENTURE OUTDOORS SHOULD DRESS WARMLY...MAKING SURE
THAT ALL EXPOSED SKIN IS COVERED.

&&

$$
 JH
000 
WWUS43 KFSD 270307
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
907 PM CST THU FEB 26 2009

.CANADIAN HIGH PRESSURE WILL CONTINUE TO BUILD INTO THE NORTHERN
PLAINS. STRONG NORTH TO NORTHWEST WINDS ON THE LEADING EDGE OF THE HIGH
PRESSURE SYSTEM WILL GENERATE BITTERLY COLD WIND CHILLS OVERNIGHT. THESE
WIND CHILLS WILL IMPROVE EARLY FRIDAY MORNING AS WINDS DECREASE
AND SUBZERO TEMPERATURES WARM.

MNZ071-072-080-097-271115-
/O.CAN.KFSD.WS.W.0001.000000T0000Z-090227T0300Z/
/O.EXT.KFSD.WC.Y.0006.090227T0307Z-090227T1300Z/
LINCOLN-LYON-MURRAY-PIPESTONE-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...SLAYTON...FULDA...PIPESTONE
907 PM CST THU FEB 26 2009

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 7 AM CST FRIDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS CANCELLED THE
WINTER STORM WARNING. THE WIND CHILL ADVISORY IS NOW IN EFFECT
UNTIL 7 AM CST FRIDAY. 


AS TEMPERATURES FALL TO JUST BELOW ZERO LATER TONIGHT...THE
LINGERING NORTH WIND WILL CREATE DANGEROUS WIND CHILL VALUES OF
20 BELOW TO 30 BELOW ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY IS ISSUED WHEN A STRONG WIND WILL COMBINE
WITH COLD TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR
EXPOSED SKIN.  THE WIND WILL MAKE IT FEEL LIKE IT IS 20 DEGREES
BELOW ZERO OR COLDER FOR A PERIOD OF SEVERAL HOURS.  THOSE
PLANNING TO VENTURE OUTDOORS SHOULD DRESS WARMLY...MAKING SURE
THAT ALL EXPOSED SKIN IS COVERED.

&&

$$

MNZ081-090-270415-
/O.CAN.KFSD.WS.W.0001.000000T0000Z-090227T0300Z/
COTTONWOOD-JACKSON-
INCLUDING THE CITIES OF...WINDOM...MOUNTAIN LAKE...JACKSON...
LAKEFIELD
907 PM CST THU FEB 26 2009

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS CANCELLED THE
WINTER STORM WARNING. 

LIGHT SNOW MAY CONTINUE ACROSS PORTIONS OF SOUTHWEST MINNESOTA
THIS EVENING...HOWEVER LITTLE ADDITIONAL ACCUMULATION IS EXPECTED.

$$

SDZ038>040-052>060-271115-
/O.CON.KFSD.WC.Y.0006.000000T0000Z-090227T1300Z/
BEADLE-KINGSBURY-BROOKINGS-JERAULD-SANBORN-MINER-LAKE-MOODY-BRULE-
AURORA-DAVISON-HANSON-
INCLUDING THE CITIES OF...HURON...DE SMET...ARLINGTON...
LAKE PRESTON...BROOKINGS...WESSINGTON SPRINGS...ALPENA...
WOONSOCKET...HOWARD...MADISON...FLANDREAU...CHAMBERLAIN...
KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...MITCHELL...
ALEXANDRIA...EMERY
907 PM CST THU FEB 26 2009

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 7 AM CST FRIDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 7 AM CST FRIDAY. 

AS TEMPERATURES FALL INTO THE SINGLE DIGITS BELOW ZERO TONIGHT...
THE LINGERING NORTH WIND WILL CREATE DANGEROUS WIND CHILL VALUES
OF 20 BELOW TO 30 BELOW ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY IS ISSUED WHEN A STRONG WIND WILL COMBINE
WITH COLD TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR
EXPOSED SKIN.  THE WIND WILL MAKE IT FEEL LIKE IT IS 20 DEGREES
BELOW ZERO OR COLDER FOR A PERIOD OF SEVERAL HOURS.  THOSE
PLANNING TO VENTURE OUTDOORS SHOULD DRESS WARMLY...MAKING SURE
THAT ALL EXPOSED SKIN IS COVERED.

&&

$$
BT

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 Sioux Falls, SD wrote its last area forecast discussion before this winter storm warning went out at Feb 24, 9:30 PM CST, 6 hours 45 minutes earlier.

Area forecast discussion, Feb 24, 9:30 PM CST, 6 hours 45 minutes before
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
930 PM CST TUE FEB 24 2009

.DISCUSSION...
CURRENT FCST ON TRACK. DID TWEAK TEMPS AL TL THIS EVE AS NOT FALLING
AS QUICKLY IN A FEW PLACES. WITH FNT ENTERING WRN CWA ATT...TEMPS
SHUD DROP AFTER PASSAGE OF FNT.

&&

.AVIATION...
ISOLATED SHOWERS WILL MAKE THEIR WAY THROUGH THE REGION THIS
EVENING...HOWEVER A DRY SUBCLOUD LAYER WILL EAT AWAY AT ANY
PRECIPITATION WELL BEFORE IT REACHES THE GROUND.  VFR CONDITIONS
WILL PERSIST THROUGH WEDNESDAY MORNING WHEN LOW LYING STRATUS WILL
SLIDE IN FROM THE NORTH AND GRADUALLY OOZE SOUTH THROUGHOUT THE
DAY.  THIS WILL PRIMARILY AFFECT KHON-KBKX THROUGH 00Z
THURSDAY...BUT WILL AFFECT LOCATIONS SOUTH THEREAFTER.

&&

.PREVIOUS DISCUSSION...
A MILD AIR MASS WILL REMAIN IN PLACE THROUGH THE NIGHT WITH
SOUTHERLY FLOW BECOMING WEST AND NORTHWEST LATER IN THE NIGHT.
TEMPERATURES SHOULD REMAIN WARM OVER EASTERN PARTS OF THE CWA DURING
THE EVENING WITH SOUTHERLY FLOW BECOMING SOUTHWEST DURING THE
EVENING BEFORE BECOMING NORTHWEST LATE. THIS IS IN RESPONSE TO A
TROF OF LOW PRESSURE MOVING ACROSS NORTH DAKOTA INTO NORTHERN
MINNESOTA. SOME PATCHY LIGHT FREEZING RAIN OR SNOW WILL BE POSSIBLE
NORTH OF THE CWA...BUT THIS AREA SHOULD REMAIN DRY. LOOK FOR LOWS TO
RANGE FROM THE MID 20S NORTH TO THE LOWER 30S SOUTH.

MAIN WEATHER CONCERN THE REST OF THE WEEK WILL BE WITH TOMORROW
NIGHT/THURSDAY SYSTEM. MODELS GENERALLY HAVE BEEN TRENDING SLIGHTLY
N THE LAST FEW RUNS...AND MAINLY WORRIED ABOUT AREAS N OF I29...BUT
A LOT WILL DEPEND ON WHERE S/WV TRACKS AND HOW STRONG THIS WAVE IS.
JUDGING BY WATERVAPOR OFF THE CALIFORNIA COAST...SEEMS LIKE AN
ORGANIZED SHORT WAVE...MAYBE MORE SO THAN PREVIOUS MODEL RUNS
SUGGESTED. WILL BE NICE HOW THE MODELS HANDLE THE WAVE ONCE IT IS ON
SHORE. 18Z NAM AND GFS ARE DOWNRIGHT SCARY. MOST LIKELY THE MODELS
ARE OVERDOING QPF BY A BIT...BUT STILL COULD BE DEALING WITH SOME
SIGNIFICANT SNOW ALONG AND NEAR HIGHWAY 14. HAVE 4 TO 8 INCH SNOW
AMOUNTS GOING FOR THIS AREA...BUT COULD BE LOOKING A BAND OF 12 INCH
AMOUNTS. SNOW AMOUNTS SHOULD DROP OFF RAPIDLY S OF THIS AREA WITH 1
TO 4 INCHES LIKELY. CERTAINLY A NICE BNDRY/THERMAL GRADIENT IN PLACE
ACROSS ERN SD INTO CNTRL MN WED NIGHT AND THURSDAY...SO ANY UPPER
DYNAMICS INTERACTING WITH THE BNDRY WILL PRODUCE/ENHANCE
PRECIPITATION. TYPE OF PRECIPITATION IS TRICKY WITH THIS SYSTEM. AT
LEAST A BRIEF PERIOD OF FREEZING RAIN IN EXPECTED...EXCEPT IN THE
FAR NRN CWA WHERE IS SHOULD BE COLD ENOUGH FOR ALL SNOW. DRY
INITIALLY IN THE MID LEVELS...SO A PRECIPITATION FALLS THROUGH THIS
LAYER...IT SHOULD RAPIDLY COOL AND WET BULB TO BELOW FREEZING. SO DO
NOT IMAGINE A BIG FREEZING RAIN ISSUE...BUT OF COURSE ANY FREEZING
RAIN COULD MAKE THINGS MESSY. BLSN WILL BECOME AN ISSUE AS NRLY
WINDS BECOME STRONG AS THE PRECIPITATION WINDS DOWN.

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
IA...NONE.
MN...WINTER STORM WATCH FROM THURSDAY MORNING THROUGH THURSDAY
     EVENING FOR MNZ071-072-080-081-097.

NE...NONE.
SD...WINTER STORM WATCH FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY
     AFTERNOON FOR SDZ038>040-052>056.

&&
Hazardous weather outlook, Feb 24, 5:12 AM CST, 23 hours 3 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
0512 AM CST TUE FEB 24 2009

SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098-
IAZ001>003-012>014-020>022-031-032-NEZ013-014-251200-
AURORA-BEADLE-BON HOMME-BROOKINGS-BRULE-BUENA VISTA IA-
CHARLES MIX-CHEROKEE IA-CLAY-CLAY IA-COTTONWOOD MN-DAKOTA NE-
DAVISON-DICKINSON IA-DIXON NE-DOUGLAS-GREGORY-HANSON-HUTCHINSON-
IDA IA-JACKSON MN-JERAULD-KINGSBURY-LAKE-LINCOLN-LINCOLN MN-
LYON IA-LYON MN-MCCOOK-MINER-MINNEHAHA-MOODY-MURRAY MN-NOBLES MN-
OBRIEN IA-OSCEOLA IA-PIPESTONE MN-PLYMOUTH IA-ROCK MN-SANBORN-
SIOUX IA-TURNER-UNION-WOODBURY IA-YANKTON-
0512 AM CST TUE FEB 24 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA...
SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

MIXED PRECIPITATION IS EXPECTED TO DEVELOP FROM WEST TO EAST
ACROSS THE AREA ON WEDNESDAY NIGHT. AS COLDER AIR FILTERS INTO
THE REGION...MIXED PRECIPITATION IS EXPECTED TO CHANGE TO ALL
SNOW BY THURSDAY MORNING...THEN CONTINUE THROUGH MUCH OF THE DAY.
WHILE THE EXACT TRACK OF THE STORM IS STILL UNCERTAIN...THERE IS
A STRONG POSSIBILITY THAT SOME PARTS OF THE AREA WILL HAVE 3 TO 5
INCHES OF SNOW WITH THE SYSTEM.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

&&

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT
WWW.WEATHER.GOV/SIOUXFALLS. THIS INCLUDES THE GRAPHICAL HAZARDOUS
WEATHER OUTLOOK.

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 25, 11:07 AM CSTWinter Weather AdvisoryFSDJackson, Nobles, Rock29 hr

Nearby

Winter Storm Warnings in South Dakota, 2009Winter Storm Warnings in Minnesota, 2009Winter Storm Warnings in Iowa, 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.