Alert archive / South Dakota / Wind Chill Advisories in 2009

Wind Chill Advisory 3, NWS Sioux Falls, SD

January 13, 20094 states

NWS Sioux Falls, SD issued this wind chill advisory at Jan 13, 2009, 3:17 PM CST for 4 states. It took effect at Jan 14, 2009, 12:00 AM CST. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued
Jan 13, 2009, 3:17 PM CST (21:17 UTC)
In effect from
Jan 14, 2009, 12:00 AM CST
Expired
Jan 15, 2009, 12:00 AM CST
In force
24 hr
Issued by
NWS Sioux Falls, SD
All 45 counties

Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Dickinson County, IA, Ida County, IA, Lyon County, IA, O'Brien County, IA, Osceola County, IA, Plymouth County, IA, Sioux County, IA, Woodbury County, IA, Cottonwood County, MN, Jackson County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Dakota County, NE, Dixon County, NE, Aurora County, SD, Beadle County, SD, Bon Homme County, SD, Brookings County, SD, Brule County, SD, Charles Mix County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Jerauld County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Sanborn County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 16 km from the middle of the area, began a volume at 21:18 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 9.3 hours before the alert went out and 202 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 12:00Z on 2009-01-13Temperature 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 12:00Z on 2009-01-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 139 square meters per square second.1939587897117136Sfc1 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
918 m above ground
0-6 km bulk shear
85 kt
0-1 km storm-relative helicity
139 m²/s²
0-3 km storm-relative helicity
315 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 132117
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
317 PM CST TUE JAN 13 2009

.SNOW WILL CONTINUE TO AFFECT AREAS MAINLY EAST OF THE JAMES
VALLEY THIS EVENING...GRADUALLY COMING TO AND END AFTER MIDNIGHT.
SNOWFALL ACCUMULATIONS OF 1 TO 4 INCHES CAN BE EXPECTED ALONG AND
EAST OF THAN JAMES VALLEY THIS EVENING...WITH THE HEAVIEST AMOUNTS
ACROSS SOUTHWEST MINNESOTA. BITTERLY COLD AIR WILL FOLLOW THE SNOW
ALONG WITH GUSTY NORTHWEST WINDS. THESE GUSTY WINDS ALONG WITH
THE BITTERLY COLD AIR...WILL PRODUCE DANGEROUS WINDS CHILLS OF 20
BELOW TO 40 BELOW LATER TONIGHT THROUGH WEDNESDAY NIGHT.

MNZ089-097-SDZ040-140530-
/O.NEW.KFSD.WC.Y.0003.090114T0600Z-090115T0600Z/
/O.EXA.KFSD.WW.Y.0005.000000T0000Z-090114T0600Z/
NOBLES-PIPESTONE-BROOKINGS-
INCLUDING THE CITIES OF...WORTHINGTON...PIPESTONE...BROOKINGS
317 PM CST TUE JAN 13 2009

...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT...
...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT CST WEDNESDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT. A WIND CHILL ADVISORY HAS ALSO BEEN ISSUED. THIS WIND
CHILL ADVISORY IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT CST
WEDNESDAY NIGHT.

SNOW WILL CONTINUE TO SPREAD SOUTHEAST ACROSS THE AREA THIS
EVENING...GRADUALLY ENDING AFTER MIDNIGHT. TOTAL SNOWFALL
ACCUMULATIONS OF 3 TO 4 INCHES CAN BE EXPECTED BY MIDNIGHT. THE
SNOW WILL BE HEAVY AT TIMES AND WILL REDUCE VISIBILITIES TO LESS
THAN ONE HALF MILE AT TIMES.

STRONG NORTHWEST WINDS OF 20 TO 35 MPH ALONG WITH SUB ZERO
TEMPERATURES LATE TONIGHT AND WEDNESDAY...WILL PRODUCE BITTERLY
COLD WIND CHILLS OF 20 BELOW TO 35 BELOW LATER TONIGHT AND
WEDNESDAY. THE NORTHWEST WINDS WILL BEGIN TO SUBSIDE WEDNESDAY
EVENING...HOWEVER...WITH ACTUAL AIR TEMPERATURES DROPPING TO 
20 BELOW WEDNESDAY NIGHT...WIND CHILL READINGS WILL DROP TO 30
BELOW TO 40 BELOW.

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

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.

$$

IAZ002-003-014-140530-
/O.NEW.KFSD.WC.Y.0003.090114T1000Z-090115T0600Z/
/O.EXA.KFSD.WW.Y.0005.000000T0000Z-090114T0600Z/
OSCEOLA-DICKINSON-CLAY-
INCLUDING THE CITIES OF...SIBLEY...SPIRIT LAKE...MILFORD...
ARNOLDS PARK...SPENCER
317 PM CST TUE JAN 13 2009

...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT...
...WIND CHILL ADVISORY IN EFFECT FROM 4 AM WEDNESDAY TO MIDNIGHT
CST WEDNESDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT. A WIND CHILL ADVISORY HAS ALSO BEEN ISSUED. THIS WIND
CHILL ADVISORY IS IN EFFECT FROM 4 AM WEDNESDAY TO MIDNIGHT CST
WEDNESDAY NIGHT.

SNOW WILL CONTINUE TO SPREAD SOUTHEAST ACROSS THE AREA THIS
EVENING...GRADUALLY ENDING AFTER MIDNIGHT. TOTAL SNOWFALL
ACCUMULATIONS OF 3 TO 4 INCHES CAN BE EXPECTED BY MIDNIGHT. THE
SNOW WILL BE HEAVY AT TIMES AND WILL REDUCE VISIBILITIES TO LESS
THAN ONE HALF MILE AT TIMES.

STRONG NORTHWEST WINDS OF 20 TO 35 MPH ALONG WITH TEMPERATURES
NEAR ZERO LATE TONIGHT AND WEDNESDAY...WILL PRODUCE BITTERLY COLD
WIND CHILLS OF 20 BELOW TO 30 BELOW LATER TONIGHT AND WEDNESDAY.
THE NORTHWEST WINDS WILL BEGIN TO SUBSIDE WEDNESDAY
EVENING...HOWEVER...WITH ACTUAL AIR TEMPERATURES DROPPING TO 10
BELOW TO 20 BELOW WEDNESDAY NIGHT...WIND CHILL READINGS WILL DROP
TO 30 BELOW TO 35 BELOW.

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

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.

$$

MNZ071-072-080-081-090-140530-
/O.NEW.KFSD.WC.Y.0003.090114T0600Z-090115T0600Z/
/O.CON.KFSD.WW.Y.0005.000000T0000Z-090114T0600Z/
LINCOLN-LYON-MURRAY-COTTONWOOD-JACKSON-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
JACKSON...LAKEFIELD
317 PM CST TUE JAN 13 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT CST WEDNESDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WIND
CHILL ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT CST WEDNESDAY NIGHT. A WINTER WEATHER ADVISORY REMAINS
IN EFFECT UNTIL MIDNIGHT CST TONIGHT. 

SNOW WILL CONTINUE TO SPREAD SOUTHEAST ACROSS THE AREA THIS
EVENING...GRADUALLY ENDING AFTER MIDNIGHT. TOTAL SNOWFALL
ACCUMULATIONS OF 3 TO 4 INCHES CAN BE EXPECTED BY MIDNIGHT. THE
SNOW WILL BE HEAVY AT TIMES AND WILL REDUCE VISIBILITIES TO LESS
THAN ONE HALF MILE AT TIMES.

STRONG NORTHWEST WINDS OF 20 TO 35 MPH ALONG WITH SUB ZERO
TEMPERATURES LATE TONIGHT AND WEDNESDAY...WILL PRODUCE BITTERLY
COLD WIND CHILLS OF 20 BELOW TO 35 BELOW LATER TONIGHT AND
WEDNESDAY. THE NORTHWEST WINDS WILL BEGIN TO SUBSIDE WEDNESDAY
EVENING...HOWEVER...WITH ACTUAL AIR TEMPERATURES DROPPING TO 
20 BELOW WEDNESDAY NIGHT...WIND CHILL READINGS WILL DROP TO 30
BELOW TO 40 BELOW.

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

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.

$$

MNZ098-SDZ038-039-053>056-140530-
/O.NEW.KFSD.WC.Y.0003.090114T0600Z-090115T0600Z/
ROCK-BEADLE-KINGSBURY-SANBORN-MINER-LAKE-MOODY-
INCLUDING THE CITIES OF...LUVERNE...HURON...DE SMET...ARLINGTON...
LAKE PRESTON...WOONSOCKET...HOWARD...MADISON...FLANDREAU
317 PM CST TUE JAN 13 2009

...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT CST WEDNESDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WIND
CHILL ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT CST WEDNESDAY NIGHT. 

STRONG NORTHWEST WINDS OF 20 TO 35 MPH ALONG WITH SUB ZERO
TEMPERATURES LATE TONIGHT AND WEDNESDAY...WILL PRODUCE BITTERLY
COLD WIND CHILLS OF 20 BELOW TO 35 BELOW LATER TONIGHT AND
WEDNESDAY. THE NORTHWEST WINDS WILL BEGIN TO SUBSIDE WEDNESDAY
EVENING...HOWEVER...WITH ACTUAL AIR TEMPERATURES DROPPING TO 
20 BELOW TO 25 BELOW WEDNESDAY NIGHT...WIND CHILL READINGS WILL
DROP TO 30 BELOW TO 40 BELOW.

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.

$$

IAZ001-012-013-020>022-031-032-NEZ013-014-SDZ050-052-057>071-
140530-
/O.NEW.KFSD.WC.Y.0003.090114T1000Z-090115T0600Z/
LYON-SIOUX-OBRIEN-PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-IDA-
DIXON-DAKOTA-GREGORY-JERAULD-BRULE-AURORA-DAVISON-HANSON-MCCOOK-
MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN-BON HOMME-
YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...ORANGE CITY...SIOUX CENTER...SHELDON...HARTLEY...
SANBORN...LE MARS...CHEROKEE...STORM LAKE...SIOUX CITY...
IDA GROVE...HOLSTEIN...BATTLE CREEK...WAKEFIELD...PONCA...ALLEN...
SOUTH SIOUX CITY...GREGORY...BURKE...WESSINGTON SPRINGS...
ALPENA...CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...
STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...
BRIDGEWATER...MONTROSE...SIOUX FALLS...WAGNER...PLATTE...
LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT...PARKSTON...
FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...MARION...
VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...
YANKTON...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT...
ALCESTER...JEFFERSON
317 PM CST TUE JAN 13 2009

...WIND CHILL ADVISORY IN EFFECT FROM 4 AM WEDNESDAY TO MIDNIGHT
CST WEDNESDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WIND
CHILL ADVISORY...WHICH IS IN EFFECT FROM 4 AM WEDNESDAY TO
MIDNIGHT CST WEDNESDAY NIGHT. 

STRONG NORTHWEST WINDS OF 20 TO 35 MPH ALONG WITH TEMPERATURES OF
5 BELOW TO 5 ABOVE BY LATE TONIGHT AND INTO WEDNESDAY...WILL
PRODUCE BITTERLY COLD WIND CHILLS OF 20 BELOW TO 30 BELOW LATER
TONIGHT AND WEDNESDAY. THE NORTHWEST WINDS WILL BEGIN TO SUBSIDE
WEDNESDAY EVENING...HOWEVER...WITH ACTUAL AIR TEMPERATURES
DROPPING TO 15 BELOW TO 20 BELOW WEDNESDAY NIGHT...WIND CHILL
READINGS WILL DROP TO 30 BELOW TO 35 BELOW.

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.

$$
6 follow-up statements
000 
WWUS43 KFSD 140337
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
937 PM CST TUE JAN 13 2009

.SNOW WAS DECREASING RAPIDLY THIS EVENING. FOR THE REST OF TONIGHT
A FEW AREAS OF LIGHT SNOW WILL PRODUCE LITTLE OR NO ADDITIONAL
ACCUMULATION. HOWEVER...A RESURGENCE OF BITTERLY COLD AIR WILL
ARRIVE ON GUSTY NORTH TO NORTHWEST WINDS. THESE GUSTY WINDS ALONG
WITH THE BITTERLY COLD AIR WILL PRODUCE DANGEROUS WINDS CHILLS OF
20 BELOW TO 40 BELOW LATER TONIGHT THROUGH WEDNESDAY NIGHT.

MNZ071-072-080-081-089-090-097-SDZ040-141145-
/O.CAN.KFSD.WW.Y.0005.000000T0000Z-090114T0600Z/
/O.CON.KFSD.WC.Y.0003.090114T0600Z-090115T0600Z/
LINCOLN-LYON-MURRAY-COTTONWOOD-NOBLES-JACKSON-PIPESTONE-BROOKINGS-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
WORTHINGTON...JACKSON...LAKEFIELD...PIPESTONE...BROOKINGS
937 PM CST TUE JAN 13 2009

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
WEDNESDAY NIGHT...
...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS CANCELLED THE
WINTER WEATHER ADVISORY. A WIND CHILL ADVISORY REMAINS IN EFFECT
UNTIL MIDNIGHT CST WEDNESDAY NIGHT. 

ONLY A FEW AREAS OF LIGHT SNOW ARE EXPECTED THE REST OF TONIGHT
WITH LITTLE OR NO ACCUMULATION. HOWEVER...STRONG NORTHWEST WINDS
OF 20 TO 35 MPH ALONG WITH SUB ZERO TEMPERATURES TONIGHT AND
WEDNESDAY...WILL PRODUCE BITTERLY COLD WIND CHILLS OF 20 BELOW TO
35 BELOW TONIGHT AND WEDNESDAY. THE NORTHWEST WINDS WILL BEGIN TO
SUBSIDE WEDNESDAY EVENING...HOWEVER...WITH ACTUAL AIR TEMPERATURES
DROPPING TO 20 BELOW WEDNESDAY NIGHT...WIND CHILL READINGS WILL
DROP TO 30 BELOW TO 40 BELOW. THE STRONG WINDS WILL ALSO PRODUCE
AREAS OF BLOWING AND DRIFTING SNOW BEGINNING LATE TONIGHT.

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.

$$

IAZ002-003-014-141145-
/O.CAN.KFSD.WW.Y.0005.000000T0000Z-090114T0600Z/
/O.EXT.KFSD.WC.Y.0003.090114T0600Z-090115T0600Z/
OSCEOLA-DICKINSON-CLAY-
INCLUDING THE CITIES OF...SIBLEY...SPIRIT LAKE...MILFORD...
ARNOLDS PARK...SPENCER
937 PM CST TUE JAN 13 2009

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL MIDNIGHT CST WEDNESDAY
NIGHT...
...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS CANCELLED THE
WINTER WEATHER ADVISORY. THE WIND CHILL ADVISORY IS NOW IN EFFECT
UNTIL MIDNIGHT CST WEDNESDAY NIGHT.

ONLY A FEW AREAS OF LIGHT SNOW ARE EXPECTED THE REST OF TONIGHT
WITH LITTLE OR NO ACCUMULATION. HOWEVER...STRONG NORTHWEST WINDS
OF 20 TO 35 MPH ALONG WITH SUB ZERO TEMPERATURES TONIGHT AND
WEDNESDAY...WILL PRODUCE BITTERLY COLD WIND CHILLS OF 20 BELOW TO
35 BELOW TONIGHT AND WEDNESDAY. THE NORTHWEST WINDS WILL BEGIN TO
SUBSIDE WEDNESDAY EVENING...HOWEVER...WITH ACTUAL AIR TEMPERATURES
DROPPING TO 20 BELOW WEDNESDAY NIGHT...WIND CHILL READINGS WILL
DROP TO 30 BELOW TO 40 BELOW. THE STRONG WINDS WILL ALSO PRODUCE
AREAS OF BLOWING AND DRIFTING SNOW BEGINNING LATE TONIGHT.

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.

$$

IAZ001-013-SDZ052-059>062-141145-
/O.EXT.KFSD.WC.Y.0003.090114T0600Z-090115T0600Z/
LYON-OBRIEN-JERAULD-DAVISON-HANSON-MCCOOK-MINNEHAHA-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SHELDON...HARTLEY...SANBORN...WESSINGTON SPRINGS...
ALPENA...MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...
BRIDGEWATER...MONTROSE...SIOUX FALLS
937 PM CST TUE JAN 13 2009

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL MIDNIGHT CST WEDNESDAY
NIGHT...

THE WIND CHILL ADVISORY IS NOW IN EFFECT UNTIL MIDNIGHT CST
WEDNESDAY NIGHT. 

STRONG NORTHWEST WINDS OF 20 TO 35 MPH ALONG WITH TEMPERATURES OF
ZERO TO 10 BELOW TONIGHT AND INTO WEDNESDAY...WILL PRODUCE
BITTERLY COLD WIND CHILLS OF 20 BELOW TO 35 BELOW LATER TONIGHT
AND WEDNESDAY. THE NORTHWEST WINDS WILL BEGIN TO SUBSIDE WEDNESDAY
EVENING...HOWEVER...WITH ACTUAL AIR TEMPERATURES DROPPING TO 15
BELOW TO 20 BELOW WEDNESDAY NIGHT...WIND CHILL READINGS WILL DROP
TO 30 BELOW TO 35 BELOW. THE STRONG WINDS WILL ALSO PRODUCE
AREAS OF BLOWING AND DRIFTING SNOW BEGINNING LATE TONIGHT.

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.

$$

MNZ098-SDZ038-039-053>056-141145-
/O.CON.KFSD.WC.Y.0003.090114T0600Z-090115T0600Z/
ROCK-BEADLE-KINGSBURY-SANBORN-MINER-LAKE-MOODY-
INCLUDING THE CITIES OF...LUVERNE...HURON...DE SMET...ARLINGTON...
LAKE PRESTON...WOONSOCKET...HOWARD...MADISON...FLANDREAU
937 PM CST TUE JAN 13 2009

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
WEDNESDAY NIGHT...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
WEDNESDAY NIGHT. 

STRONG NORTHWEST WINDS OF 20 TO 35 MPH ALONG WITH SUB ZERO
TEMPERATURES LATE TONIGHT AND WEDNESDAY...WILL PRODUCE BITTERLY
COLD WIND CHILLS OF 20 BELOW TO 35 BELOW LATER TONIGHT AND
WEDNESDAY. THE NORTHWEST WINDS WILL BEGIN TO SUBSIDE WEDNESDAY
EVENING...HOWEVER...WITH ACTUAL AIR TEMPERATURES DROPPING TO
20 BELOW TO 25 BELOW WEDNESDAY NIGHT...WIND CHILL READINGS WILL
DROP TO 30 BELOW TO 40 BELOW. THE STRONG WINDS WILL ALSO PRODUCE
AREAS OF BLOWING AND DRIFTING SNOW BEGINNING LATE TONIGHT.

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.

$$

IAZ012-020>022-031-032-NEZ013-014-SDZ050-057-058-063>071-141145-
/O.CON.KFSD.WC.Y.0003.090114T1000Z-090115T0600Z/
SIOUX-PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-
GREGORY-BRULE-AURORA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-
LINCOLN-BON HOMME-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...ORANGE CITY...SIOUX CENTER...LE MARS...
CHEROKEE...STORM LAKE...SIOUX CITY...IDA GROVE...HOLSTEIN...
BATTLE CREEK...WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...
GREGORY...BURKE...CHAMBERLAIN...KIMBALL...PLANKINTON...
WHITE LAKE...STICKNEY...WAGNER...PLATTE...LAKE ANDES...MARTY...
ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP...
PARKER...CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...
CANTON...LENNOX...TEA...HARRISBURG...TYNDALL...SCOTLAND...
SPRINGFIELD...AVON...TABOR...YANKTON...VERMILLION...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
937 PM CST TUE JAN 13 2009

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 4 AM WEDNESDAY TO
MIDNIGHT CST WEDNESDAY NIGHT...

A WIND CHILL ADVISORY REMAINS IN EFFECT FROM 4 AM WEDNESDAY TO
MIDNIGHT CST WEDNESDAY NIGHT. 

STRONG NORTHWEST WINDS OF 20 TO 35 MPH ALONG WITH TEMPERATURES OF
5 BELOW TO 5 ABOVE BY LATE TONIGHT AND INTO WEDNESDAY...WILL
PRODUCE BITTERLY COLD WIND CHILLS OF 20 BELOW TO 30 BELOW LATER
TONIGHT AND WEDNESDAY. THE NORTHWEST WINDS WILL BEGIN TO SUBSIDE
WEDNESDAY EVENING...HOWEVER...WITH ACTUAL AIR TEMPERATURES
DROPPING TO 15 BELOW TO 20 BELOW WEDNESDAY NIGHT...WIND CHILL
READINGS WILL DROP TO 30 BELOW TO 35 BELOW. THE STRONG WINDS WILL
ALSO PRODUCE AREAS OF BLOWING AND DRIFTING SNOW BEGINNING LATE
TONIGHT.

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.

$$
WILLIAMS
000 
WWUS43 KFSD 140939
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
339 AM CST WED JAN 14 2009

.COLD...ARCTIC AIR WILL DRIVE SOUTHWARD ON A STRONG NORTH WIND
TODAY. THIS WILL DROP WIND CHILL TEMPERATURES TO 20 TO 35 BELOW
ZERO FOR MOST LOCATIONS. WIND CHILL READINGS OF 35 TO 40 BELOW
ZERO WILL ALSO BE POSSIBLE EAST OF A LINE FROM BROOKINGS TO
SPENCER IOWA. AS HIGH PRESSURE BUILDS SOUTH...THE WIND WILL BEGIN
TO SUBSIDE AFTER SUNSET. WHILE THE EFFECTS OF THE WIND WILL
DIMINISH AFTER MIDNIGHT...ACTUAL TEMPERATURES WILL FALL TO AROUND
20 BELOW ZERO IN MANY LOCATIONS THURSDAY MORNING.

IAZ002-003-013-014-MNZ071-072-080-081-089-090-097-SDZ040-141745-
/O.UPG.KFSD.WC.Y.0003.000000T0000Z-090115T0600Z/
/O.NEW.KFSD.WC.W.0001.090114T1000Z-090115T1200Z/
OSCEOLA-DICKINSON-OBRIEN-CLAY-LINCOLN-LYON-MURRAY-COTTONWOOD-
NOBLES-JACKSON-PIPESTONE-BROOKINGS-
INCLUDING THE CITIES OF...SIBLEY...SPIRIT LAKE...MILFORD...
ARNOLDS PARK...SHELDON...HARTLEY...SANBORN...SPENCER...TYLER...
HENDRICKS...LAKE BENTON...IVANHOE...MARSHALL...SLAYTON...FULDA...
WINDOM...MOUNTAIN LAKE...WORTHINGTON...JACKSON...LAKEFIELD...
PIPESTONE...BROOKINGS
339 AM CST WED JAN 14 2009

...WIND CHILL WARNING IN EFFECT UNTIL 6 AM CST THURSDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WIND
CHILL WARNING...WHICH IS IN EFFECT UNTIL 6 AM CST THURSDAY. THE
WIND CHILL ADVISORY IS NO LONGER IN EFFECT. 

NORTH WINDS OF OF 15 TO 30 MPH WILL COMBINE WITH TEMPERATURES OF 5
TO 10 BELOW ZERO TO CREATE WIND CHILL READINGS OF 25 TO 40 BELOW
ZERO. A FEW FLURRIES AND PATCHY BLOWING SNOW WILL ALSO BE POSSIBLE
THIS MORNING AS THE COLD AIR SURGES SOUTH. 

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

$$

IAZ022-141745-
/O.UPG.KFSD.WC.Y.0003.090114T1000Z-090115T0600Z/
/O.NEW.KFSD.WC.W.0001.090114T1000Z-090115T1200Z/
BUENA VISTA-
INCLUDING THE CITY OF...STORM LAKE
339 AM CST WED JAN 14 2009

...WIND CHILL WARNING IN EFFECT UNTIL 6 AM CST THURSDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WIND
CHILL WARNING...WHICH IS IN EFFECT UNTIL 6 AM CST THURSDAY. THE
WIND CHILL ADVISORY IS NO LONGER IN EFFECT. 

NORTH WINDS OF OF 15 TO 30 MPH WILL COMBINE WITH TEMPERATURES
AROUND 5 BELOW ZERO TO CREATE WIND CHILL READINGS OF 25 TO 40
BELOW ZERO. THE COLDEST WIND CHILL READINGS WILL LIKELY BE FROM
ABOUT 500 PM CST THROUGH 1000 PM CST. A FEW FLURRIES AND PATCHY
BLOWING SNOW WILL ALSO BE POSSIBLE THIS MORNING AS THE COLD AIR
SURGES SOUTH.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

$$

IAZ001-MNZ098-SDZ038-039-052>056-059>062-141745-
/O.EXT.KFSD.WC.Y.0003.000000T0000Z-090115T0600Z/
LYON-ROCK-BEADLE-KINGSBURY-JERAULD-SANBORN-MINER-LAKE-MOODY-
DAVISON-HANSON-MCCOOK-MINNEHAHA-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...LUVERNE...HURON...DE SMET...ARLINGTON...
LAKE PRESTON...WESSINGTON SPRINGS...ALPENA...WOONSOCKET...
HOWARD...MADISON...FLANDREAU...MITCHELL...ALEXANDRIA...EMERY...
SALEM...CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS
339 AM CST WED JAN 14 2009

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

THE WIND CHILL ADVISORY IS NOW IN EFFECT UNTIL MIDNIGHT CST
TONIGHT. 

NORTH WINDS OF OF 15 TO 30 MPH WILL COMBINE WITH TEMPERATURES
AROUND 5 BELOW ZERO TO CREATE WIND CHILL READINGS OF 20 TO 35
BELOW ZERO. A FEW FLURRIES AND PATCHY BLOWING SNOW WILL ALSO BE
POSSIBLE THIS MORNING AS THE COLD AIR SURGES SOUTH.

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.

$$

IAZ012-020-021-031-032-NEZ013-014-SDZ050-057-058-063>071-141745-
/O.CON.KFSD.WC.Y.0003.090114T1000Z-090115T0600Z/
SIOUX-PLYMOUTH-CHEROKEE-WOODBURY-IDA-DIXON-DAKOTA-GREGORY-BRULE-
AURORA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN-BON HOMME-
YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...ORANGE CITY...SIOUX CENTER...LE MARS...
CHEROKEE...SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK...
WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...GREGORY...BURKE...
CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...
WAGNER...PLATTE...LAKE ANDES...MARTY...ARMOUR...CORSICA...
DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP...PARKER...
CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...CANTON...
LENNOX...TEA...HARRISBURG...TYNDALL...SCOTLAND...SPRINGFIELD...
AVON...TABOR...YANKTON...VERMILLION...NORTH SIOUX CITY...
BERESFORD...ELK POINT...ALCESTER...JEFFERSON
339 AM CST WED JAN 14 2009

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT. 

NORTH WINDS OF OF 15 TO 30 MPH WILL COMBINE WITH TEMPERATURES
OF ZERO TO 5 BELOW ZERO TO CREATE WIND CHILL READINGS OF 20 TO 30 
BELOW ZERO. A FEW FLURRIES AND PATCHY BLOWING SNOW WILL ALSO BE
POSSIBLE THIS MORNING AS THE COLD AIR SURGES SOUTH.

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.

$$
000 
WWUS43 KFSD 141629
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1029 AM CST WED JAN 14 2009

.BITTER COLD ARCTIC AIR WILL CONTINUE TO MOVE SOUTHWARD OVER THE
AREA THROUGH THIS AFTERNOON AND EVENING. NORTH WINDS WILL BE
GENERALLY 15 TO 25 MPH THIS AFTERNOON...BUT GUST TO AROUND 30 MPH
IN SOME AREAS...ESPECIALLY FROM SOUTHWEST MINNESOTA TO NORTHWEST
IOWA. LOWEST WIND CHILLS WILL RANGE FROM 35 TO 40 BELOW ZERO IN
SOUTHWEST MINNESOTA...TO 25 BELOW ZERO IN THE MISSOURI VALLEY FROM
CHAMBERLAIN TO SIOUX CITY. AS HIGH PRESSURE BUILDS SOUTH TONIGHT...
THE WIND WILL BEGIN TO SUBSIDE AFTER SUNSET. WHILE THE EFFECTS OF
THE WIND WILL DIMINISH AFTER MIDNIGHT...ACTUAL TEMPERATURES WILL
FALL TO AROUND 20 BELOW ZERO IN MANY LOCATIONS THURSDAY MORNING.

IAZ002-003-013-014-022-MNZ071-072-080-081-089-090-097-SDZ040-
150030-
/O.CON.KFSD.WC.W.0001.000000T0000Z-090115T1200Z/
OSCEOLA-DICKINSON-OBRIEN-CLAY-BUENA VISTA-LINCOLN-LYON-MURRAY-
COTTONWOOD-NOBLES-JACKSON-PIPESTONE-BROOKINGS-
INCLUDING THE CITIES OF...SIBLEY...SPIRIT LAKE...MILFORD...
ARNOLDS PARK...SHELDON...HARTLEY...SANBORN...SPENCER...
STORM LAKE...TYLER...HENDRICKS...LAKE BENTON...IVANHOE...
MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
WORTHINGTON...JACKSON...LAKEFIELD...PIPESTONE...BROOKINGS
1029 AM CST WED JAN 14 2009

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 6 AM CST THURSDAY...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 6 AM CST THURSDAY. 

NORTH TO NORTHWEST WINDS OF OF 20 TO 30 MPH WILL COMBINE WITH
TEMPERATURES OF 5 TO 10 BELOW ZERO TO CREATE WIND CHILL READINGS
OF 30 TO 40 BELOW ZERO. ICE CRYSTALS AND PATCHY BLOWING SNOW WILL
ALSO BE POSSIBLE TODAY AS THE COLD AIR SURGES SOUTH.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

$$

IAZ001-012-020-021-031-032-MNZ098-NEZ013-014-SDZ038-039-050-
052>071-150030-
/O.CON.KFSD.WC.Y.0003.000000T0000Z-090115T0600Z/
LYON-SIOUX-PLYMOUTH-CHEROKEE-WOODBURY-IDA-ROCK-DIXON-DAKOTA-
BEADLE-KINGSBURY-GREGORY-JERAULD-SANBORN-MINER-LAKE-MOODY-BRULE-
AURORA-DAVISON-HANSON-MCCOOK-MINNEHAHA-CHARLES MIX-DOUGLAS-
HUTCHINSON-TURNER-LINCOLN-BON HOMME-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...ORANGE CITY...SIOUX CENTER...LE MARS...CHEROKEE...
SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK...LUVERNE...
WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...HURON...DE SMET...
ARLINGTON...LAKE PRESTON...GREGORY...BURKE...WESSINGTON SPRINGS...
ALPENA...WOONSOCKET...HOWARD...MADISON...FLANDREAU...
CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...
MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...BRIDGEWATER...
MONTROSE...SIOUX FALLS...WAGNER...PLATTE...LAKE ANDES...MARTY...
ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP...
PARKER...CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...
CANTON...LENNOX...TEA...HARRISBURG...TYNDALL...SCOTLAND...
SPRINGFIELD...AVON...TABOR...YANKTON...VERMILLION...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
1029 AM CST WED JAN 14 2009

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT. 

NORTH TO NORTHWEST WINDS OF OF 15 TO 25 MPH WITH A FEW HIGHER GUSTS...
WILL COMBINE WITH TEMPERATURES NEAR 5 BELOW ZERO TO CREATE WIND
CHILL READINGS OF 20 TO 35 BELOW ZERO. ICE CRYSTALS AND LOCALIZED
BLOWING SNOW WILL ALSO BE POSSIBLE TODAY AS THE COLD AIR SURGES
SOUTH. WINDS WILL DECREASE AFTER SUNSET...BUT TEMPERATURES WILL
CONTINUE TO DROP.

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.

$$
RYRHOLM
000 
WWUS43 KFSD 142115
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
315 PM CST WED JAN 14 2009

.BITTERLY COLD WIND CHILLS CAN BE EXPECTED ACROSS THE REGION
THROUGH MIDNIGHT...LINGERING EAST OF INTERSTATE 29 THROUGH
THURSDAY MORNING. WIND CHILLS OF 35 BELOW TO 40 BELOW CAN BE
EXPECTED EAST OF INTERSTATE 29...AND FROM 25 BELOW TO 35 BELOW
WEST OF INTERSTATE 29.

IAZ002-003-013-014-022-MNZ071-072-080-081-089-090-097-SDZ040-
150515-
/O.CON.KFSD.WC.W.0001.000000T0000Z-090115T1200Z/
OSCEOLA-DICKINSON-OBRIEN-CLAY-BUENA VISTA-LINCOLN-LYON-MURRAY-
COTTONWOOD-NOBLES-JACKSON-PIPESTONE-BROOKINGS-
INCLUDING THE CITIES OF...SIBLEY...SPIRIT LAKE...MILFORD...
ARNOLDS PARK...SHELDON...HARTLEY...SANBORN...SPENCER...
STORM LAKE...TYLER...HENDRICKS...LAKE BENTON...IVANHOE...
MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
WORTHINGTON...JACKSON...LAKEFIELD...PIPESTONE...BROOKINGS
315 PM CST WED JAN 14 2009

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 6 AM CST THURSDAY...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 6 AM CST THURSDAY. 

NORTH TO NORTHWEST WINDS WILL DECREASE TO 10 TO 15 MPH OVERNIGHT.
HOWEVER...THESE WINDS COMBINED WITH ACTUAL AIR TEMPERATURES
DROPPING TO NEAR 25 BELOW...WILL CREATE BITTERLY COLD WIND CHILLS
OF OF 35 BELOW TO 40 BELOW TONIGHT.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

$$

IAZ001-012-020-021-031-032-MNZ098-NEZ013-014-SDZ038-039-050-
052>071-150515-
/O.CON.KFSD.WC.Y.0003.000000T0000Z-090115T0600Z/
LYON-SIOUX-PLYMOUTH-CHEROKEE-WOODBURY-IDA-ROCK-DIXON-DAKOTA-
BEADLE-KINGSBURY-GREGORY-JERAULD-SANBORN-MINER-LAKE-MOODY-BRULE-
AURORA-DAVISON-HANSON-MCCOOK-MINNEHAHA-CHARLES MIX-DOUGLAS-
HUTCHINSON-TURNER-LINCOLN-BON HOMME-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...ORANGE CITY...SIOUX CENTER...LE MARS...CHEROKEE...
SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK...LUVERNE...
WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...HURON...DE SMET...
ARLINGTON...LAKE PRESTON...GREGORY...BURKE...WESSINGTON SPRINGS...
ALPENA...WOONSOCKET...HOWARD...MADISON...FLANDREAU...
CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...
MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...BRIDGEWATER...
MONTROSE...SIOUX FALLS...WAGNER...PLATTE...LAKE ANDES...MARTY...
ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP...
PARKER...CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...
CANTON...LENNOX...TEA...HARRISBURG...TYNDALL...SCOTLAND...
SPRINGFIELD...AVON...TABOR...YANKTON...VERMILLION...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
315 PM CST WED JAN 14 2009

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT. 

NORTH TO NORTHWEST WINDS OF 10 TO 20 MPH THIS EVENING...WILL
GRADUALLY BECOME LIGHT AND VARIABLE AFTER MIDNIGHT. THE WINDS
COMBINED WITH SUB ZERO TEMPERATURES...WILL PRODUCE BITTERLY COLD
WIND CHILLS OF 25 BELOW TO 35 BELOW THROUGH MIDNIGHT. ACTUAL LOW
TEMPERATURES WILL DROP TO 15 BELOW TO 25 BELOW BY THURSDAY.
HOWEVER...WITH WINDS BECOMING LIGHT AFTER MIDNIGHT...WIND CHILLS
WILL NOT BE A FACTOR. 

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.

$$
000 
WWUS43 KFSD 150315
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
915 PM CST WED JAN 14 2009

.BITTERLY COLD WIND CHILLS CAN BE EXPECTED ACROSS THE REGION
THROUGH MIDNIGHT...LINGERING EAST OF INTERSTATE 29 THROUGH
THURSDAY MORNING. WIND CHILLS OF 35 BELOW TO 40 BELOW CAN BE
EXPECTED EAST OF INTERSTATE 29...AND FROM 25 BELOW TO 35 BELOW
WEST OF INTERSTATE 29.

IAZ002-003-013-014-022-MNZ071-072-080-081-089-090-097-SDZ040-
151115-
/O.CON.KFSD.WC.W.0001.000000T0000Z-090115T1200Z/
OSCEOLA-DICKINSON-OBRIEN-CLAY-BUENA VISTA-LINCOLN-LYON-MURRAY-
COTTONWOOD-NOBLES-JACKSON-PIPESTONE-BROOKINGS-
INCLUDING THE CITIES OF...SIBLEY...SPIRIT LAKE...MILFORD...
ARNOLDS PARK...SHELDON...HARTLEY...SANBORN...SPENCER...
STORM LAKE...TYLER...HENDRICKS...LAKE BENTON...IVANHOE...
MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
WORTHINGTON...JACKSON...LAKEFIELD...PIPESTONE...BROOKINGS
915 PM CST WED JAN 14 2009

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 6 AM CST THURSDAY...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 6 AM CST THURSDAY. 

NORTH TO NORTHWEST WINDS WILL DECREASE TO 10 TO 15 MPH OVERNIGHT.
HOWEVER...THESE WINDS COMBINED WITH ACTUAL AIR TEMPERATURES
DROPPING TO 25 BELOW TO 35 BELOW...WILL CREATE BITTERLY COLD WIND
CHILLS OF OF 35 BELOW TO 45 BELOW TONIGHT.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

$$

IAZ001-012-020-021-031-032-MNZ098-NEZ013-014-SDZ038-039-050-
052>071-150600-
/O.CON.KFSD.WC.Y.0003.000000T0000Z-090115T0600Z/
LYON-SIOUX-PLYMOUTH-CHEROKEE-WOODBURY-IDA-ROCK-DIXON-DAKOTA-
BEADLE-KINGSBURY-GREGORY-JERAULD-SANBORN-MINER-LAKE-MOODY-BRULE-
AURORA-DAVISON-HANSON-MCCOOK-MINNEHAHA-CHARLES MIX-DOUGLAS-
HUTCHINSON-TURNER-LINCOLN-BON HOMME-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...ORANGE CITY...SIOUX CENTER...LE MARS...CHEROKEE...
SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK...LUVERNE...
WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...HURON...DE SMET...
ARLINGTON...LAKE PRESTON...GREGORY...BURKE...WESSINGTON SPRINGS...
ALPENA...WOONSOCKET...HOWARD...MADISON...FLANDREAU...
CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...
MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...BRIDGEWATER...
MONTROSE...SIOUX FALLS...WAGNER...PLATTE...LAKE ANDES...MARTY...
ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP...
PARKER...CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...
CANTON...LENNOX...TEA...HARRISBURG...TYNDALL...SCOTLAND...
SPRINGFIELD...AVON...TABOR...YANKTON...VERMILLION...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
915 PM CST WED JAN 14 2009

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT. 

NORTH TO NORTHWEST WINDS OF 5 TO 15 MPH LATE THIS EVENING...WILL
GRADUALLY BECOME LIGHT AND VARIABLE AFTER MIDNIGHT. THE WINDS
COMBINED WITH SUB ZERO TEMPERATURES...WILL PRODUCE BITTERLY COLD
WIND CHILLS OF 25 BELOW TO 35 BELOW THROUGH MIDNIGHT. ACTUAL
TEMPERATURES WILL DROP TO 15 BELOW TO 25 BELOW BY THURSDAY.
WITH WINDS BECOMING LIGHT AFTER MIDNIGHT...WIND CHILLS WILL NOT
BE A MAJOR FACTOR...BUT IT WILL STILL BE VERY COLD.

A WIND CHILL ADVISORY IS ISSUED WHEN WINDS 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.

$$
WILLIAMS
000 
WWUS43 KFSD 150617
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1217 AM CST THU JAN 15 2009

.BITTERLY COLD WIND CHILLS CAN BE EXPECTED EAST OF INTERSTATE 29
THROUGH THURSDAY MORNING WITH WIND CHILLS OF 35 BELOW TO 40 BELOW
ZERO.

IAZ001-012-020-021-031-032-MNZ098-NEZ013-014-SDZ038-039-050-
052>071-150730-
/O.EXP.KFSD.WC.Y.0003.000000T0000Z-090115T0600Z/
LYON-SIOUX-PLYMOUTH-CHEROKEE-WOODBURY-IDA-ROCK-DIXON-DAKOTA-
BEADLE-KINGSBURY-GREGORY-JERAULD-SANBORN-MINER-LAKE-MOODY-BRULE-
AURORA-DAVISON-HANSON-MCCOOK-MINNEHAHA-CHARLES MIX-DOUGLAS-
HUTCHINSON-TURNER-LINCOLN-BON HOMME-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...ORANGE CITY...SIOUX CENTER...LE MARS...CHEROKEE...
SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK...LUVERNE...
WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...HURON...DE SMET...
ARLINGTON...LAKE PRESTON...GREGORY...BURKE...WESSINGTON SPRINGS...
ALPENA...WOONSOCKET...HOWARD...MADISON...FLANDREAU...
CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...
MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...BRIDGEWATER...
MONTROSE...SIOUX FALLS...WAGNER...PLATTE...LAKE ANDES...MARTY...
ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP...
PARKER...CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...
CANTON...LENNOX...TEA...HARRISBURG...TYNDALL...SCOTLAND...
SPRINGFIELD...AVON...TABOR...YANKTON...VERMILLION...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
1217 AM CST THU JAN 15 2009

...WIND CHILL ADVISORY HAS EXPIRED...

THE WIND CHILL ADVISORY IS NO LONGER IN EFFECT. 

WHILE THE WIND HAS DECREASED AND IS NO LONGER A FACTOR...ACTUAL
TEMPERATURES WILL STILL BE VERY COLD WITH THURSDAY MORNING LOWS
RANGING FROM ABOUT 15 BELOW TO 25 BELOW.

$$

IAZ002-003-013-014-022-MNZ071-072-080-081-089-090-097-SDZ040-
151200-
/O.CON.KFSD.WC.W.0001.000000T0000Z-090115T1200Z/
OSCEOLA-DICKINSON-OBRIEN-CLAY-BUENA VISTA-LINCOLN-LYON-MURRAY-
COTTONWOOD-NOBLES-JACKSON-PIPESTONE-BROOKINGS-
INCLUDING THE CITIES OF...SIBLEY...SPIRIT LAKE...MILFORD...
ARNOLDS PARK...SHELDON...HARTLEY...SANBORN...SPENCER...
STORM LAKE...TYLER...HENDRICKS...LAKE BENTON...IVANHOE...
MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
WORTHINGTON...JACKSON...LAKEFIELD...PIPESTONE...BROOKINGS
1217 AM CST THU JAN 15 2009

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING. 

NORTH TO NORTHWEST WINDS OF 10 TO 15 MPH WILL COMBINE WITH
TEMPERATURES OF 15 BELOW TO 20 BELOW TO CREATE WIND CHILLS OF 35
BELOW TO 45 BELOW TONIGHT. WINDS SHOULD DECREASE TO LESS THAN 5
MPH LATE TONIGHT AND NOT BE FACTOR...BUT ACTUAL TEMPERATURES WILL
FALL TO AROUND 25 BELOW ZERO.

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS
WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN.

$$

What forecasters said that day

The local office's own words before this wind chill advisory 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 wind chill advisory went out at Jan 13, 11:19 AM CST, 3 hours 58 minutes earlier.

Area forecast discussion, Jan 13, 11:19 AM CST, 3 hours 58 minutes before
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1119 AM CST TUE JAN 13 2009

.DISCUSSION...
VERY COLD AIR ENTRENCHED OVER THE ERN CWA THIS MORNING STILL
FIGHTING NEARLY 10 BELOW WITH LIGHT WINDS IN THE E. HOWEVER...CHANGES
UNDERWAY WITH GOOD SNOW BAND DEVELOPING FM CNTRL ND TOWARD THE MID
JAMES VALLEY ATTM. GOOD CONSENSUS ON DYNAMIC AND THERMODYNAMIC
STRUCTURE FOR SYSTEM...BUT NOT SO GOOD ON MODEL QPF. STRONG FRONTAL
BAND GETS FRONTOGENETIC BOOST LATER THIS AFTN AS COMPACT AREA OF DIV
Q WITH WAVE DIVING SWRD TOWARD MN...WHICH SHOUL

LOTS OF 1/2SM VSBYS WITHIN BAND ACRS ND...AND THIS WITHOUT A GREAT
DEAL OF WIND. ANALYSIS OF CROSS SECTIONS THRU ISENTROPIC LIFT ZONE
LTR AFTN INTO THE EVENING SUGGEST THAT AREA N/NE OF KFSD WL HAVE
FAVORABLE DEEP DENDRITIC ZONE...AS WELL AS THE BEST PV/FRONTAL
LINKUP. NICE FRONTOLYTIC OVER FRONTOGENETIC SIGNATURE AND NEAR ZERO
TO SLIGHTLY NEGATIVE EPV ALSO FAVORS SOME MORE INTENSE BANDING.
ALL THINGS CONSIDERED...AND ENHANCING THE SNOW WATER RATIO GRADIENT
FROM 12/1 SW TO 18/1 NE...ENDED UP TIPPING 4 INCHES LOCALLY OVER
TERRAIN OF SW MN. HOISTED A LITTLE WINTER WX ADVY TO COVER THE 3-4
INCH AREA...BUT FOR NOW DO NOT EXPECT BLOWING SNOW TO BE A BIG ISSUE
WITH STRONGER WIND SIGNATURES INTO THE NIGHT EXPECTED TO BE TOWARD
THE WRN/SRN CWA WHERE MUCH LESS SNOW EXPECTED. THEREFORE...WL CUT
OFF ADVY AROUND MIDNIGHT AFTER WHICH THE DEEPER FORCING LEAVE BNDRY
BEHIND...AND WL THEN BE ABLE TO FOCUS CLEANLY ON INEVITABLE WIND
CHILL HIGHLIGHTS WHEN AFTN PACKAGE IS ISSUED.

OVERALL...TRENDS IN POPS/WX IN FORMER GRIDS EXCELLENT IN COMPARISON
TO EXPECTED DYNAMICS/TIMING WITH BAND DEVELOPMENT...AND MOST CHANGES
ON THE MINOR SIDE FOR THE SHORT TERM.

&&

.AVIATION...
A BAND OF SNOW WL CONTINUE TO DEVELOP FROM NCNTRL SD THRU ERN SD
THIS AFTERNOON...SPREADING SLOWLY EWRD THIS EVENING. OUTSIDE THE
SNOW BAND...EXPECT VFR CONDITIONS TO BE THE RULE...BUT AS THE SNOW
BEGINS TO FALL...MVFR CEILINGS WILL BE LIKELY WITH IFR CEILINGS
POSSIBLE. HOWEVER...THE MOST LIKELY IFR CIGS/VSBYS WL BE IN THE
BETTER SNOWBAND EXPECTED TO REMAIN MOSTLY NE OF THE KHON/KFSD/KSUX
SITES. OTHERWISE...STRONG NORTH WINDS WILL DEVELOP LATE
TONIGHT AND CONTINUE INTO WEDNESDAY.

&&

.PREV DISCUSSION...
CURRENTLY...ARCTIC AIRMASS ACROSS THE AREA RESULTING IN SUBZERO
READINGS ACROSS THE AREA. WITH WINDS HANGING ON FOR THE NEXT FEW
HOURS ACROSS FAR EASTERN CWA...WILL EXTEND WIND ADVISORY THROUGH 12Z
FOR BASICALLY EASTERN TWO TIERS OF COUNTIES.

SECOND CLIPPER SYSTEM DEVELOPING OVER EASTERN ALBERTA THIS MORNING.
THIS SYSTEM WILL IMPACT DIURNAL TEMPERATURES OVER THE NEXT 36 HOURS
OR SO UNTIL THE SECOND SURGE OF ARCTIC AIR MOVES INTO THE NORTHERN
PLAINS ON THE BACKSIDE OF THE CLIPPER.

FAIRLY GOOD BAND OF WARM AIR ADVECTION DEVELOPING NEAR HETTINGER ND
TO MOBRIDGE SD GENERATING LIGHT SNOW. THIS BAND IS EXPECTED TO
INTENSIFY AS IT DROPS TO THE SOUTHEAST. EXPECT SNOW WITH THIS
FEATURE TO DEVELOP NEAR KHON AND INCREASE IN INTENSITY AS IT SPREADS
TO THE EAST. NOT A LOT IN THE WAY OF UPPER LEVEL SUPPORT UNTIL LATE
IN THE DAY AS UPPER LEVEL WAVE DROPS DOWN IN NORTHWEST FLOW.
THEREFORE...HAVE MAINLY 1-2 INCHES OF SNOW WITH ISENTROPIC LIFT WEST
OF I-29 AND 2-3 INCHES OF SNOW EAST OF I-29 AS DYNAMICS INCREASE.
ENTERTAINED THE IDEA OF ISSUING A WINTER WEATHER ADVISORY FOR
PORTIONS OF SOUTHWEST MINNESOTA...BUT GIVEN WINDS DO NOT INCREASE
SIGNIFICANTLY UNTIL SNOW WINDS DOWN...OPTED TO FORGO HEADLINES FOR
NOW.

SHOULD SEE TEMPERATURES REMAIN FAIRLY STEADY THIS EVENING PRIOR TO
ARCTIC FRONT SLICING THROUGH THE AREA. TEMPS WILL CONTINUE TO FALL
THROUGHOUT THE DAY ON WEDNESDAY AS STRONG NORTHWEST WINDS DRAW THE
SECOND SHORT OF ARCTIC AIR SOUTHWARD.  REDUCED POPS ON WEDNESDAY
MORNING WITH FRONT MOVING THROUGH SLIGHTLY FASTER THAN PREVIOUSLY
ANTICIPATED.  COULD SEE A FEW ICE CRYSTALS FLYING AROUND IN BRISK
NORTH WINDS...BUT WILL LIKELY BE WILL DIFFICULT TO RESULT IN
ACCUMULATION DUE TO DRY NATURE OF AIRMASS. WITH BRISK NORTH
WIND...WILL NEED WIND CHILL ADVISORY FOR AT LEAST NORTHERN HALF OF
FORECAST AREA DURING THE DAY ON WEDNESDAY.

AS WINDS FALL OFF WEDNESDAY NIGHT TEMPERATURES WILL FALL TO COOLEST
LEVELS OF THE YEAR SO FAR.  LOWERED FORECAST LOWS WEDNESDAY NIGHT
ESPECIALLY IN JAMES RIVER VALLEY WHERE RIDGE AXIS WILL RESULT IN
NEARLY CALM CONDITIONS.

DOME OF ARCTIC AIR BEGINS TO SHIFT TO THE THE EAST ON FRIDAY
RESULTING IN A WARMING TREND HEADED INTO THE WEEKEND.  MODELS
INDICATING AN UPPER LEVEL WAVE DROPPING DOWN IN NORTHWEST FLOW
FRIDAY NIGHT INTO SATURDAY MORNING. GFS REMAINS MUCH FURTHER WEST
THAN ECMWF AND CANADIAN WITH THIS SYSTEM...SO FOR NOW...LEFT SLIGHT
CHANCE POPS CONFINED TO NORTHEAST CORNER OF FORECAST AREA.    BT

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
IA...NONE.
MN...WINTER WX ADVY 3 PM TO MIDNIGHT CST FOR MNZ071-072-080-081-090.
NE...NONE.
SD...NONE.
&&

CHAPMAN
Hazardous weather outlook, Jan 13, 4:16 AM CST, 11 hours 1 minute before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
0416 AM CST TUE JAN 13 2009

SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098-
IAZ001>003-012>014-020>022-031-032-NEZ013-014-141200-
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-
0416 AM CST TUE JAN 13 2009

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

.DAY ONE...TODAY AND TONIGHT

WINTER WEATHER...
A BAND OF SNOW WILL DEVELOP NEAR HURON SPREADING EAST THROUGHOUT
THE DAY. SNOW ACCUMULATIONS WILL RANGE FROM ONE TO TWO INCHES
MAINLY ALONG AND WEST OF INTERSTATE 29.  SNOW WILL CONTINUE
ACROSS SOUTHWEST MINNESOTA INTO NORTHWEST IOWA TONIGHT.  SNOW
TOTALS THERE WILL GENERALLY TOTAL TWO TO THREE INCHES.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

BRISK NORTHWEST WINDS WILL CREATE BITTERLY COLD WIND CHILLS OF 20
TO 30 DEGREES BELOW ZERO DURING THE DAY WEDNESDAY. THESE WINDS
MAY ALSO CREATE AREAS OF BLOWING AND DRIFTING SNOW REDUCING
VISIBILITIES.  CLEAR SKIES AND DECREASING WINDS WILL ALLOW ACTUAL
TEMPERATURES TO FALL TO 15 TO 25 DEGREES BELOW ZERO WEDNESDAY
NIGHT.

.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.

BT

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 12, 6:40 PM CSTWind Chill AdvisoryFSDBuena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more11 hr
Jan 13, 10:42 AM CSTWinter Weather AdvisoryFSDClay, Dickinson, Osceola11 hr

Nearby

Wind Chill Advisories in South Dakota, 2009Wind Chill Advisories in Iowa, 2009Wind Chill Advisories in Minnesota, 2009Every wind chill advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.