Alert archive / Minnesota / Wind Chill Warnings in 2013

Wind Chill Warning 1, NWS Sioux Falls, SD

January 20, 20135 counties in Minnesota; Brookings County, South Dakota

NWS Sioux Falls, SD issued this wind chill warning at Jan 20, 2013, 3:44 AM CST for 5 counties in Minnesota; Brookings County, South Dakota. It took effect at Jan 20, 2013, 6:00 PM CST. It was in force for 18 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 20, 2013, 3:44 AM CST (09:44 UTC)
In effect from
Jan 20, 2013, 6:00 PM CST
Expired
Jan 21, 2013, 12:00 PM CST
In force
18 hr
Issued by
NWS Sioux Falls, SD

Counties Cottonwood County, MN, Jackson County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Brookings County, SD

The radar

The Sioux Falls radar (KFSD), 95 km from the middle of the area, began a volume at 09:45 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

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

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 9.7 hours before the alert went out and 193 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2013-01-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2013-01-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -25 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
1026 m above ground
0-6 km bulk shear
95 kt
0-1 km storm-relative helicity
-25 m²/s²
0-3 km storm-relative helicity
26 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.

669 
WWUS43 KFSD 200944
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
344 AM CST SUN JAN 20 2013

.ARCTIC AIR WILL SETTLE OVER THE REGION THROUGH MONDAY EVENING.
ACCOMPANYING THE COLD WILL BE NORTHWEST WINDS 10 TO 15 MPH. THIS
WILL RESULT IN DANGEROUS WIND CHILLS AS COLD AS 40 BELOW ZERO
TONIGHT AND MONDAY MORNING. AS HIGH PRESSURE MOVES OVER THE AREA
MONDAY NIGHT...WINDS WILL DECREASE.

MNZ071-072-080-081-090-SDZ040-201745-
/O.NEW.KFSD.WC.W.0001.130121T0000Z-130121T1800Z/
/O.NEW.KFSD.WC.Y.0001.130121T1800Z-130122T0600Z/
LINCOLN-LYON-MURRAY-COTTONWOOD-JACKSON-BROOKINGS-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
JACKSON...LAKEFIELD...BROOKINGS
344 AM CST SUN JAN 20 2013

...WIND CHILL WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON
CST MONDAY...
...WIND CHILL ADVISORY IN EFFECT FROM NOON MONDAY TO MIDNIGHT CST
MONDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WIND
CHILL WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO NOON
CST MONDAY. A WIND CHILL ADVISORY HAS ALSO BEEN ISSUED. THIS WIND
CHILL ADVISORY IS IN EFFECT FROM NOON MONDAY TO MIDNIGHT CST
MONDAY NIGHT. 

* WIND...NORTHWEST WINDS OF 10 T0 15 MPH ARE EXPECTED WITH GUSTS
  UP TO 20 MPH. WINDS WILL DECREASE TO AROUND 10 MPH MONDAY
  EVENING.

* WIND CHILL VALUES...DANGEROUS WIND CHILL VALUES BETWEEN 35 BELOW
  AND 40 BELOW ZERO ARE EXPECTED FROM THIS EVENING THROUGH MONDAY
  MORNING. WHILE WIND CHILL VALUES ARE EXPECTED TO MODERATE A
  LITTLE MONDAY AFTERNOON...VALUES BETWEEN 20 BELOW AND 30 BELOW
  ZERO CAN BE EXPECTED INTO MONDAY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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>003-014-MNZ089-097-098-SDZ038-039-054>056-062-201745-
/O.NEW.KFSD.WC.Y.0001.130121T0000Z-130122T0600Z/
LYON-OSCEOLA-DICKINSON-CLAY-NOBLES-PIPESTONE-ROCK-BEADLE-
KINGSBURY-MINER-LAKE-MOODY-MINNEHAHA-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
SPENCER...WORTHINGTON...PIPESTONE...LUVERNE...HURON...DE SMET...
ARLINGTON...LAKE PRESTON...HOWARD...MADISON...FLANDREAU...
SIOUX FALLS
344 AM CST SUN JAN 20 2013

...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT CST MONDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WIND
CHILL ADVISORY...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT CST MONDAY NIGHT. 

* WIND...NORTHWEST WINDS OF 10 TO 15 MPH...WITH A FEW GUSTS TO 20
  MPH...ARE EXPECTED THROUGH MONDAY EVENING.

* WIND CHILL VALUES...WIND CHILL VALUES OF 20 BELOW TO 35 BELOW
  ZERO ARE EXPECTED THROUGH MONDAY EVENING. THE COLDEST WIND
  CHILLS ARE EXPECTED MONDAY MORNING.

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.

&&

$$

IAZ012-013-020>022-031-032-NEZ013-014-SDZ052-053-057>061-064>067-
069>071-201745-
/O.NEW.KFSD.WC.Y.0001.130121T0000Z-130121T1800Z/
SIOUX-OBRIEN-PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DIXON-
DAKOTA-JERAULD-SANBORN-BRULE-AURORA-DAVISON-HANSON-MCCOOK-DOUGLAS-
HUTCHINSON-TURNER-LINCOLN-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...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...WESSINGTON SPRINGS...ALPENA...
WOONSOCKET...CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...
STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...
BRIDGEWATER...MONTROSE...ARMOUR...CORSICA...DELMONT...PARKSTON...
FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...MARION...
VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...YANKTON...VERMILLION...NORTH SIOUX CITY...
BERESFORD...ELK POINT...ALCESTER...JEFFERSON
344 AM CST SUN JAN 20 2013

...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON
CST MONDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WIND
CHILL ADVISORY...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO
NOON CST MONDAY. 

* WIND...NORTHWEST WINDS OF 10 TO 15 MPH ARE EXPECTED FROM
  TONIGHT THROUGH MONDAY MORNING. A FEW GUSTS TO 20 MPH ARE
  POSSIBLE.

* WIND CHILL VALUES...THE WIND CHILL IS EXPECTED TO BE FROM 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.

&&

$$

SCHUMACHER
5 follow-up statements
033 
WWUS43 KFSD 201608
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1008 AM CST SUN JAN 20 2013

.ARCTIC AIR WILL CONTINUE TO MOVE INTO THE AREA THIS AFTERNOON AND
TONIGHT WITH TEMPERATURES GETTING EVEN COLDER. NORTHWEST WINDS
WILL INCREASE TO 10 TO 20 MPH AND CONTINUE TONIGHT INTO MONDAY.
THIS WILL RESULT IN DANGEROUS WIND CHILLS AS COLD AS 40 BELOW
ZERO TONIGHT AND MONDAY MORNING. AS HIGH PRESSURE MOVES OVER THE
AREA MONDAY NIGHT...WINDS WILL DECREASE.

MNZ071-072-080-081-090-SDZ040-210015-
/O.CON.KFSD.WC.W.0001.130121T0000Z-130121T1800Z/
/O.CON.KFSD.WC.Y.0001.130121T1800Z-130122T0600Z/
LINCOLN-LYON-MURRAY-COTTONWOOD-JACKSON-BROOKINGS-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
JACKSON...LAKEFIELD...BROOKINGS
1008 AM CST SUN JAN 20 2013

...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
NOON CST MONDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM NOON MONDAY TO
MIDNIGHT CST MONDAY NIGHT...

* WIND...NORTHWEST WINDS OF 10 T0 20 MPH ARE EXPECTED WITH GUSTS
  UP TO 25 MPH. WINDS WILL DECREASE TO AROUND 10 MPH MONDAY
  EVENING.

* WIND CHILL VALUES...DANGEROUS WIND CHILL VALUES BETWEEN 35 
  BELOW AND 40 BELOW ZERO ARE EXPECTED FROM THIS EVENING THROUGH 
  MONDAY MORNING. WHILE WIND CHILL VALUES ARE EXPECTED TO 
  MODERATE A LITTLE MONDAY AFTERNOON...VALUES BETWEEN 20 BELOW 
  AND 30 BELOW ZERO CAN BE EXPECTED INTO MONDAY EVENING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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>003-014-MNZ089-097-098-SDZ038-039-054>056-062-210015-
/O.CON.KFSD.WC.Y.0001.130121T0000Z-130122T0600Z/
LYON-OSCEOLA-DICKINSON-CLAY-NOBLES-PIPESTONE-ROCK-BEADLE-
KINGSBURY-MINER-LAKE-MOODY-MINNEHAHA-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
SPENCER...WORTHINGTON...PIPESTONE...LUVERNE...HURON...DE SMET...
ARLINGTON...LAKE PRESTON...HOWARD...MADISON...FLANDREAU...
SIOUX FALLS
1008 AM CST SUN JAN 20 2013

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO MIDNIGHT CST MONDAY NIGHT...

* WIND...NORTHWEST WINDS OF 10 TO 20 MPH...WITH A FEW GUSTS TO 25
  MPH...ARE EXPECTED THROUGH MONDAY EVENING.

* WIND CHILL VALUES...WIND CHILL VALUES OF 20 BELOW TO 35 BELOW 
  ZERO ARE EXPECTED THROUGH MONDAY EVENING. THE COLDEST WIND 
  CHILLS ARE EXPECTED MONDAY MORNING. 

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.

&&

$$

IAZ012-013-020>022-031-032-NEZ013-014-SDZ052-053-057>061-064>067-
069>071-210015-
/O.CON.KFSD.WC.Y.0001.130121T0000Z-130121T1800Z/
SIOUX-OBRIEN-PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DIXON-
DAKOTA-JERAULD-SANBORN-BRULE-AURORA-DAVISON-HANSON-MCCOOK-DOUGLAS-
HUTCHINSON-TURNER-LINCOLN-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...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...WESSINGTON SPRINGS...ALPENA...
WOONSOCKET...CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...
STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...
BRIDGEWATER...MONTROSE...ARMOUR...CORSICA...DELMONT...PARKSTON...
FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...MARION...
VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...YANKTON...VERMILLION...NORTH SIOUX CITY...
BERESFORD...ELK POINT...ALCESTER...JEFFERSON
1008 AM CST SUN JAN 20 2013

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON CST MONDAY...

* WIND...NORTHWEST WINDS OF 10 TO 15 MPH ARE EXPECTED FROM 
  TONIGHT THROUGH MONDAY MORNING. A FEW GUSTS TO 20 MPH ARE 
  POSSIBLE. 

* WIND CHILL VALUES...THE WIND CHILL IS EXPECTED TO BE FROM 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.

&&

$$
223 
WWUS43 KFSD 202154
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
354 PM CST SUN JAN 20 2013

.ARCTIC AIR WILL POUR INTO THE AREA TONIGHT AND MONDAY. COUPLED
WITH THE VERY COLD AIR...NORTHWEST WINDS WILL AVERAGE A BREEZY 15
TO 25 MPH TONIGHT...AND ABOUT 10 TO 20 MPH ON MONDAY. THE
COMBINATION OF THESE FACTORS WILL PRODUCE WIND CHILL VALUES OF 20
BELOW TO 40 DEGREES BELOW ZERO...WITH LATE TONIGHT AND MONDAY
MORNING THE WORST OF THE CONDITIONS.

MNZ071-072-080-081-090-SDZ040-210600-
/O.EXT.KFSD.WC.Y.0001.130121T1800Z-130122T1200Z/
/O.CON.KFSD.WC.W.0001.130121T0000Z-130121T1800Z/
LINCOLN-LYON-MURRAY-COTTONWOOD-JACKSON-BROOKINGS-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
JACKSON...LAKEFIELD...BROOKINGS
354 PM CST SUN JAN 20 2013

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST MONDAY...
...WIND CHILL ADVISORY NOW IN EFFECT FROM NOON MONDAY TO 6 AM CST
TUESDAY...

* WIND...NORTHWEST WINDS WILL AVERAGE 15 TO 25 MPH SUNDAY NIGHT
  AND MONDAY MORNING WITH EVEN A FEW HIGHER GUSTS...GRADUALLY
  DECREASING TO AROUND 10 MPH MONDAY NIGHT.

* WIND CHILL VALUES...DANGEROUS WIND CHILL VALUES BETWEEN 35 BELOW
  AND 40 BELOW ZERO ARE EXPECTED FROM OVERNIGHT SUNDAY NIGHT
  THROUGH MONDAY MORNING. THEN MONDAY AFTERNOON AND MONDAY
  NIGHT...WIND CHILL VALUES WILL RANGE FROM 20 BELOW TO 30 BELOW
  ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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>003-014-MNZ089-097-098-SDZ038-039-054>056-062-210600-
/O.CON.KFSD.WC.Y.0001.130121T0000Z-130122T0600Z/
LYON-OSCEOLA-DICKINSON-CLAY-NOBLES-PIPESTONE-ROCK-BEADLE-
KINGSBURY-MINER-LAKE-MOODY-MINNEHAHA-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
SPENCER...WORTHINGTON...PIPESTONE...LUVERNE...HURON...DE SMET...
ARLINGTON...LAKE PRESTON...HOWARD...MADISON...FLANDREAU...
SIOUX FALLS
354 PM CST SUN JAN 20 2013

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

* WIND...NORTHWEST WINDS WILL AVERAGE 15 TO 25 MPH SUNDAY NIGHT
  WITH EVEN A FEW HIGHER GUSTS...TAPERING OFF TO 10 TO 20 MPH ON
  MONDAY. THE WINDS WILL THEN CONTINUE TO DIMINISH MONDAY NIGHT.

* WIND CHILL VALUES...WIND CHILL VALUES OF 20 BELOW TO 35 BELOW
  ZERO ARE EXPECTED THROUGH MONDAY EVENING WITH THE COLDEST WIND
  CHILLS LATE SUNDAY NIGHT AND MONDAY MORNING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY IS ISSUED WHEN 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 WARM...MAKING SURE THAT ALL EXPOSED SKIN IS
COVERED.

&&

$$

IAZ012-013-020>022-031-032-NEZ013-014-SDZ052-053-057>061-064>067-
069>071-210600-
/O.CON.KFSD.WC.Y.0001.130121T0000Z-130121T1800Z/
SIOUX-OBRIEN-PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DIXON-
DAKOTA-JERAULD-SANBORN-BRULE-AURORA-DAVISON-HANSON-MCCOOK-DOUGLAS-
HUTCHINSON-TURNER-LINCOLN-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...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...WESSINGTON SPRINGS...ALPENA...
WOONSOCKET...CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...
STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...
BRIDGEWATER...MONTROSE...ARMOUR...CORSICA...DELMONT...PARKSTON...
FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...MARION...
VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...YANKTON...VERMILLION...NORTH SIOUX CITY...
BERESFORD...ELK POINT...ALCESTER...JEFFERSON
354 PM CST SUN JAN 20 2013

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

* WIND...NORTHWEST WINDS WILL AVERAGE 15 TO 25 MPH SUNDAY NIGHT
  WITH EVEN A FEW HIGHER GUSTS...TAPERING OFF TO 10 TO 20 MPH ON
  MONDAY.

* WIND CHILL VALUES...THE WIND CHILL IS EXPECTED TO RANGE FROM 20
  BELOW TO 30 BELOW ZERO...WITH THE COLDEST READINGS LATE SUNDAY
  NIGHT AND EARLY MONDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY IS ISSUED WHEN 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 WARM...MAKING SURE THAT ALL EXPOSED SKIN IS
COVERED.

&&

$$
451 
WWUS43 KFSD 210320
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
920 PM CST SUN JAN 20 2013

.ARCTIC AIR WILL POUR INTO THE AREA TONIGHT AND MONDAY. COUPLED
WITH THE VERY COLD AIR...NORTHWEST WINDS WILL INCREASE TO A BREEZY
15 TO 25 MPH TONIGHT...AND ABOUT 10 TO 20 MPH ON MONDAY. THE
COMBINATION OF THESE FACTORS WILL PRODUCE WIND CHILL VALUES OF 20
BELOW TO 40 DEGREES BELOW ZERO...WITH LATE TONIGHT AND MONDAY
MORNING THE WORST OF THE CONDITIONS.

MNZ071-072-080-081-090-SDZ040-211130-
/O.CON.KFSD.WC.W.0001.000000T0000Z-130121T1800Z/
/O.CON.KFSD.WC.Y.0001.130121T1800Z-130122T1200Z/
LINCOLN-LYON-MURRAY-COTTONWOOD-JACKSON-BROOKINGS-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
JACKSON...LAKEFIELD...BROOKINGS
920 PM CST SUN JAN 20 2013

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST MONDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM NOON MONDAY TO 6 AM
CST TUESDAY...

* WIND...NORTHWEST WINDS WILL INCREASE TO 15 TO 25 MPH SUNDAY
  NIGHT AND MONDAY MORNING WITH EVEN A FEW HIGHER GUSTS POSSIBLE.
  WINDS WILL THEN GRADUALLY DECREASE BY MONDAY NIGHT TO AROUND 10
  MPH.

* WIND CHILL VALUES...DANGEROUS WIND CHILL VALUES BETWEEN 35 
  BELOW AND 40 BELOW ZERO ARE EXPECTED FROM OVERNIGHT SUNDAY 
  NIGHT THROUGH MONDAY MORNING. THEN MONDAY AFTERNOON AND MONDAY 
  NIGHT...WIND CHILL VALUES WILL RANGE FROM 20 BELOW TO 30 BELOW 
  ZERO. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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>003-014-MNZ089-097-098-SDZ038-039-054>056-062-211130-
/O.CON.KFSD.WC.Y.0001.000000T0000Z-130122T0600Z/
LYON-OSCEOLA-DICKINSON-CLAY-NOBLES-PIPESTONE-ROCK-BEADLE-
KINGSBURY-MINER-LAKE-MOODY-MINNEHAHA-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
SPENCER...WORTHINGTON...PIPESTONE...LUVERNE...HURON...DE SMET...
ARLINGTON...LAKE PRESTON...HOWARD...MADISON...FLANDREAU...
SIOUX FALLS
920 PM CST SUN JAN 20 2013

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

* WIND...NORTHWEST WINDS WILL INCREASE TO 15 TO 25 MPH SUNDAY
  NIGHT WITH EVEN A FEW HIGHER GUSTS...TAPERING OFF TO 10 TO 20
  MPH ON MONDAY. THE WINDS WILL THEN CONTINUE TO DIMINISH MONDAY
  NIGHT.

* WIND CHILL VALUES...WIND CHILL VALUES OF 20 BELOW TO 35 BELOW 
  ZERO ARE EXPECTED THROUGH MONDAY EVENING WITH THE COLDEST WIND 
  CHILLS LATE SUNDAY NIGHT AND MONDAY MORNING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY IS ISSUED WHEN 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 WARM...MAKING SURE THAT ALL EXPOSED
SKIN IS COVERED.

&&

$$

IAZ012-013-020>022-031-032-NEZ013-014-SDZ052-053-057>061-064>067-
069>071-211130-
/O.CON.KFSD.WC.Y.0001.000000T0000Z-130121T1800Z/
SIOUX-OBRIEN-PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DIXON-
DAKOTA-JERAULD-SANBORN-BRULE-AURORA-DAVISON-HANSON-MCCOOK-DOUGLAS-
HUTCHINSON-TURNER-LINCOLN-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...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...WESSINGTON SPRINGS...ALPENA...
WOONSOCKET...CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...
STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...
BRIDGEWATER...MONTROSE...ARMOUR...CORSICA...DELMONT...PARKSTON...
FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...MARION...
VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...YANKTON...VERMILLION...NORTH SIOUX CITY...
BERESFORD...ELK POINT...ALCESTER...JEFFERSON
920 PM CST SUN JAN 20 2013

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

* WIND...NORTHWEST WINDS WILL INCREASE TO 15 TO 25 MPH SUNDAY
  NIGHT WITH EVEN A FEW HIGHER GUSTS...TAPERING OFF TO 10 TO 20
  MPH ON MONDAY.

* WIND CHILL VALUES...THE WIND CHILL IS EXPECTED TO RANGE FROM 
  20 BELOW TO 30 BELOW ZERO...WITH THE COLDEST READINGS LATE 
  SUNDAY NIGHT AND EARLY MONDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY IS ISSUED WHEN 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 WARM...MAKING SURE THAT ALL EXPOSED
SKIN IS COVERED.

&&

$$
887 
WWUS43 KFSD 210915
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
315 AM CST MON JAN 21 2013

MNZ071-072-080-081-090-SDZ040-211715-
/O.CON.KFSD.WC.W.0001.000000T0000Z-130121T1800Z/
/O.CON.KFSD.WC.Y.0001.130121T1800Z-130122T1200Z/
LINCOLN-LYON-MURRAY-COTTONWOOD-JACKSON-BROOKINGS-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
JACKSON...LAKEFIELD...BROOKINGS
315 AM CST MON JAN 21 2013

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 6 AM
CST TUESDAY...

* WIND...NORTHWEST WINDS OF 15 TO 25 MPH WILL THEN GRADUALLY
  DECREASE TO AROUND 10 MPH TONIGHT.

* WIND CHILL VALUES...DANGEROUS WIND CHILL VALUES BETWEEN 30 BELOW
  AND 40 BELOW ZERO ARE EXPECTED THIS MORNING AND WILL RANGE FROM
  20 BELOW TO 30 BELOW ZERO THIS AFTERNOON AND TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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>003-014-MNZ089-097-098-SDZ038-039-054>056-062-211715-
/O.CON.KFSD.WC.Y.0001.000000T0000Z-130122T0600Z/
LYON-OSCEOLA-DICKINSON-CLAY-NOBLES-PIPESTONE-ROCK-BEADLE-
KINGSBURY-MINER-LAKE-MOODY-MINNEHAHA-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
SPENCER...WORTHINGTON...PIPESTONE...LUVERNE...HURON...DE SMET...
ARLINGTON...LAKE PRESTON...HOWARD...MADISON...FLANDREAU...
SIOUX FALLS
315 AM CST MON JAN 21 2013

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

* WIND...NORTHWEST WINDS OF 15 TO 25 MPH WILL DECREASE TO 10 TO 20
  MPH BY AFTERNOON AND THEN CONTINUE TO DIMINISH TONIGHT.

* WIND CHILL VALUES...WIND CHILL VALUES OF 20 BELOW TO 35 BELOW
  ZERO ARE EXPECTED THROUGH THIS EVENING WITH THE COLDEST WIND
  CHILLS THIS MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY IS ISSUED WHEN 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 WARM...MAKING SURE THAT ALL EXPOSED
SKIN IS COVERED.

&&

$$

IAZ012-013-020>022-031-032-NEZ013-014-SDZ052-053-057>061-064>067-
069>071-211715-
/O.CON.KFSD.WC.Y.0001.000000T0000Z-130121T1800Z/
SIOUX-OBRIEN-PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DIXON-
DAKOTA-JERAULD-SANBORN-BRULE-AURORA-DAVISON-HANSON-MCCOOK-DOUGLAS-
HUTCHINSON-TURNER-LINCOLN-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...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...WESSINGTON SPRINGS...ALPENA...
WOONSOCKET...CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...
STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...
BRIDGEWATER...MONTROSE...ARMOUR...CORSICA...DELMONT...PARKSTON...
FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...MARION...
VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...YANKTON...VERMILLION...NORTH SIOUX CITY...
BERESFORD...ELK POINT...ALCESTER...JEFFERSON
315 AM CST MON JAN 21 2013

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

* WIND...NORTHWEST WINDS OF 10 TO 20 MPH.

* WIND CHILL VALUES...WIND CHILL VALUES OF 15 BELOW TO 30 BELOW
  THIS MORNING...WITH THE COLDEST READINGS EARLY THIS MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY IS ISSUED WHEN 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 WARM...MAKING SURE THAT ALL EXPOSED
SKIN IS COVERED.

&&

$$
313 
WWUS43 KFSD 211740
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1140 AM CST MON JAN 21 2013

MNZ071-072-080-081-090-SDZ040-220145-
/O.EXP.KFSD.WC.W.0001.000000T0000Z-130121T1800Z/
/O.CON.KFSD.WC.Y.0001.130121T1800Z-130122T1200Z/
LINCOLN-LYON-MURRAY-COTTONWOOD-JACKSON-BROOKINGS-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...
JACKSON...LAKEFIELD...BROOKINGS
1140 AM CST MON JAN 21 2013

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST TUESDAY...
...WIND CHILL WARNING WILL EXPIRE AT NOON CST TODAY...

* WIND...NORTHWEST WINDS OF 15 TO 25 MPH WILL THEN GRADUALLY 
  DECREASE TO AROUND 10 MPH TONIGHT. 

* WIND CHILL VALUES...WIND CHILL VALUES BETWEEN 20 BELOW AND 30 BELOW
  ZERO ARE EXPECTED INTO TONIGHT.

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.

&&

$$

IAZ012-013-020>022-031-032-NEZ013-014-SDZ052-053-057>061-064>067-
069>071-211845-
/O.EXP.KFSD.WC.Y.0001.000000T0000Z-130121T1800Z/
SIOUX-OBRIEN-PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DIXON-
DAKOTA-JERAULD-SANBORN-BRULE-AURORA-DAVISON-HANSON-MCCOOK-DOUGLAS-
HUTCHINSON-TURNER-LINCOLN-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...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...WESSINGTON SPRINGS...ALPENA...
WOONSOCKET...CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...
STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...
BRIDGEWATER...MONTROSE...ARMOUR...CORSICA...DELMONT...PARKSTON...
FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...MARION...
VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...YANKTON...VERMILLION...NORTH SIOUX CITY...
BERESFORD...ELK POINT...ALCESTER...JEFFERSON
1140 AM CST MON JAN 21 2013

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

WIND CHILL VALES WILL REMAIN FROM 10 BELOW TO 20 BELOW AT SPOTS INTO
TONIGHT.

$$

IAZ001>003-014-MNZ089-097-098-SDZ038-039-054>056-062-220145-
/O.CON.KFSD.WC.Y.0001.000000T0000Z-130122T0600Z/
LYON-OSCEOLA-DICKINSON-CLAY-NOBLES-PIPESTONE-ROCK-BEADLE-
KINGSBURY-MINER-LAKE-MOODY-MINNEHAHA-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
SPENCER...WORTHINGTON...PIPESTONE...LUVERNE...HURON...DE SMET...
ARLINGTON...LAKE PRESTON...HOWARD...MADISON...FLANDREAU...
SIOUX FALLS
1140 AM CST MON JAN 21 2013

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

* WIND...NORTHWEST WINDS OF 15 TO 25 MPH WILL GRADUALLY DECREASE TO
  AROUND 10 MPH BY THIS EVENING.

* WIND CHILL VALUES...WIND CHILL VALUES OF 20 BELOW TO 30 BELOW ZERO
  ARE EXPECTED THROUGH THIS EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY IS ISSUED WHEN 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 WARM...MAKING SURE THAT ALL EXPOSED
SKIN IS COVERED.

&&

$$

What forecasters said that day

The local office's own words before this wind chill 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 wind chill warning went out at Jan 19, 10:30 PM CST, 5 hours 14 minutes earlier.

Area forecast discussion, Jan 19, 10:30 PM CST, 5 hours 14 minutes before
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1030 PM CST SAT JAN 19 2013

.DISCUSSION.../ISSUED AT 835 PM CST/
WINDS HAVE STARTED TO DIMINISH ACROSS THE AREA AS HIGH PRESSURE
SETTLES IN FROM THE NORTHWEST. STILL RUNNING 20 TO 30 MPH WITH GUSTS
TO 30 TO 40 MPH IN THE EASTERN COUNTIES...BUT THESE WILL BE DROPPING
OFF BY MIDNIGHT ALONG WITH THE REST OF THE REGION TO 5 TO 15 MPH.
TEMPERATURES HAVE NOT BEEN DROPPING QUITE AS QUICKLY AS PREVIOUSLY
FORECAST BUT STILL THINK THAT THE FINAL OVERNIGHT LOWS ARE PRETTY
CLOSE. HAVE TWEAKED THEM A BIT...MAINLY UP A COUPLE DEGREES IN THE
WESTERN COUNTIES AND ALONG THE MISSOURI RIVER WHERE CLOUD COVER WILL
BE QUICKER MOVING BACK IN. NO ISSUES WITH WIND CHILLS TONIGHT AS FAR
AS ADVISORY OR WARNING GOES...BUT TOMORROW NIGHT WILL BE A DIFFERENT
STORY. RIGHT NOW...NORTHEASTERN COUNTIES ARE FORECAST TO BRIEFLY
DROP TO AROUND -35 SUNDAY NIGHT. WILL LET THE MIDNIGHT CREW HAVE A
LOOK AT ANOTHER SET OF MODEL RUNS AND FINE TUNE WHERE THERE WILL BE
ADVISORY VS. WARNING FOR TOMORROW NIGHT.

&&

.AVIATION.../FOR THE 06Z TAF ISSUANCE/
WINDS WILL CONTINUE TO DIMINISH THROUGH THE NIGHT. OTHERWISE...LIGHT
SNOW IS EXPECTED TO DEVELOP FROM NORTH TO SOUTH AFTER 10Z...WITH
LOWERING VISIBILITIES AND CEILINGS WITH THIS ACTIVITY...AND
LINGERING INTO MID AFTERNOON ON SUNDAY. ANY LIGHT SNOW WILL TAPER
OFF AFTER THAT...THOUGH MVFR CEILINGS WILL PERSIST INTO SUNDAY
EVENING.

&&

PREVIOUS DISCUSSION.../ISSUED AT 340 PM CST/
INITIAL BATCH OF LOW CLOUDS IS PASSING SOUTH OVER THE AREA PRETTY
QUICKLY THIS AFTERNOON WITH ARCTIC FRONT...IN FACT THE FRONT AT THE
MOMENT SEEMS TO BE THE PARTIAL CLEARING LINE. SOME OF THESE CLOUDS
ARE LEFT IN THE COLD AIR SO WILL NOT GO CLEAR THIS EVENING.
MEANWHILE...THE VERY STRONG NORTHWEST WINDS WILL CONTINUE INTO THE
EARLY EVENING AT LEAST IN THE EAST...WILL KEEP THE WIND ADVISORY AS
IT IS NOW OUT THOUGH WE MAY BE ABLE TO DROP IT FROM THE WEST A
LITTLE EARLY. TEMPERATURES ARE ABOUT TO BEGIN THEIR PLUNGE WHICH
WILL CONTINUE THROUGH THE NIGHT WITH NOT MUCH RECOVERY SUNDAY. WINDS
WILL DROP OFF FAIRLY QUICKLY LATER TONIGHT AND THIS WILL KEEP A WIND
CHILL ADVISORY FROM BEING NEEDED. CLOUDS WILL STEADILY INCREASE AS
REINFORCING CLIPPER APPROACHES. MODELS ARE ALMOST AMAZINGLY CLOSE TO
EACH OTHER ON THIS SYSTEM AND POINT TO THE PROVERBIAL HIGH POP/LOW
QPF EVENT AT LEAST FOR OUR NORTHERN AND EAST CENTRAL CWA. WITH A
LITTLE FASTER MOVEMENT THAN WE HAD EARLIER FIGURED...MOST OF THE
SNOW SHOULD BE SUNDAY MORNING WITH SOME POSSIBLY ARRIVING NORTHEAST
VERY LATE TONIGHT...AND SNOW TAILING OFF RAPIDLY TO THE EAST SUNDAY
AFTERNOON. THERE IS ACTUALLY A NARROW BUT IMPRESSIVE BAND OF
FRONTOGENESIS SHOWING IN THE H750-800 RANGE THAT PASSES THROUGH AND
PRETTY MUCH ENSURES THAT THE SNOW THOUGH LIGHT WILL BE MEASURABLE.
AM KEEPING EXPECTED ACCUMULATIONS AT LESS THAN AN INCH THOUGH
PERHAPS NOT VERY FAR BELOW NORTH AND EAST CENTRAL. FORTUNATELY THE
SNOW WILL FALL WITH WINDS AT A MINIMUM. WINDS WILL BEGIN PICKING UP
AGAIN SUNDAY AFTERNOON THOUGH NOT AS STRONG AS THEY ARE THIS
AFTERNOON...AND WITH THE MINIMAL SNOWFALL SEE NO NEED TO MENTION ANY
BLOWING SNOW. THE MAIN FEATURE WILL BECOME THE COLD AS THOSE WINDS
PICK BACK UP SOME. HIGHS SUNDAY WILL BE IN THE SINGLE DIGITS NORTH
TO A FEW TEENS FAR SOUTH.

THE BRUNT OF THE COLDER AIRMASS WILL SETTLE IN FOR SUNDAY NIGHT
THROUGH MONDAY NIGHT WITH SEVERAL LOCATIONS POTENTIALLY FAILING TO
RISE ABOVE ZERO DURING THE TIME PERIOD.

WINDS WILL REMAINS FAIRLY BREEZY OVERNIGHT ON SUNDAY NIGHT...WHICH
WILL PREVENT TEMPERATURES FROM TUMBLING QUITE AS LOW AS THEY MIGHT
OTHERWISE. WITH A LITTLE FRESH SNOWPACK...HOWEVER...IT DOES LOOK
LIKE A BRUTALLY COLD NIGHT. OVERNIGHT LOWS WILL BE BELOW ZERO FOR
EVERYONE...WITH THE COLDEST TEMPERATURES IN SOUTHWEST MINNESOTA AND
ADJACENT AREAS...WHERE THE MID TEENS BELOW ZERO ARE PROBABLE. THE
COLD TEMPERATURES COMBINED WITH BREEZY WINDS ONLY GRADUALLY
DECREASING OVERNIGHT WILL PRODUCE ADVISORY LEVEL WIND CHILL READINGS
FOR THE BULK OF THE FORECAST AREA. COULD EVEN SEE WARNING LEVELS OF
30 O 35 BELOW NEAR THE HIGHWAY 14 CORRIDOR LATE AT NIGHT INTO EARLY
MONDAY. WILL HOLD OFF ANY HEADLINES FOR NOW TO AVOID CONFUSION WITH
THE CURRENT HEADLINES.

MARTIN LUTHER KING JR DAY WILL CONTINUE THE FRIGID TEMPERATURES WITH
BRISK NORTHWEST WINDS 10 TO 15 KT DURING THE DAY. EXPECT SOME
FILTERED SUNSHINE...HOWEVER HIGHS WILL ONLY RANGE FROM AROUND 5
BELOW TO 15 ABOVE. THE VAST MAJORITY OF THE FORECAST AREA WILL BE
LESS THAN 5 DEGREES...INCLUDING A HIGH OF ONLY 1 IN SIOUX FALLS.
WIND CHILLS WILL IMPROVE SOME FROM OVERNIGHT BUT WILL STILL BE
EXTREMELY COLD. CLOUDS DO BEGIN TO INCREASE FROM THE WEST ON MONDAY
NIGHT WHICH WILL ALLOW FOR SOME INSULATING...BUT RELATIVELY LIGHT
WINDS AND NOT MUCH MODERATION OF THE AIRMASS WILL TAKE A TOLL.
EXPECT LOWS TO BE ONLY A FEW DEGREES WARMER THAN SUNDAY NIGHT AT
BEST.

THE UPPER LEVEL RIDGE BEGINS EDGING SLIGHTLY EASTWARD LATE MONDAY
NIGHT...WITH SOME WEAK FRONTOGENESIS DEVELOPING TO OUR WEST ON
TUESDAY. AS THIS BAND NUDGES EAST AS A WARM FRONT...SOME LIGHT SNOW
WILL BE POSSIBLE DURING THE DAY. MODELS HAVE BEEN A BIT UNCLEAR WITH
THIS IN RUNS EARLIER THIS WEEK...BUT THERE SEEMS TO BE SOME BETTER
AGREEMENT OF LATE. ADDED A SLIGHT CHANCE OF LIGHT SNOW SPREADING
EASTWARD FROM OUR WESTERN BORDER THROUGH THE DAY. WHILE QPF LOOKS
PRETTY MEAGER...MODEL SOUNDINGS INDICATE THAT THIS SNOW WILL BE
QUITE DENDRITIC. AS A RESULT...WE COULD SEE A QUICK INCH OR SO OF
FLUFFY SNOW.

SHOULD SEE A BIT MORE TEMPERATURE MODERATION ON WEDNESDAY AND
THURSDAY AS MODELS SHIFT THE RIDGE INTO THE WESTERN PLAINS. ANOTHER
POTENTIAL WAVE DROPS THROUGH THE AREA AROUND THE THURSDAY TIME
FRONT. TIMING IS A BIT UNCERTAIN WHICH ALSO MAKES THE TEMPERATURE
FORECAST TRICKY. IT LOOKS LIKE THE BEST POTENTIAL FOR SOME LIGHT
SNOWFALL WILL BE IN THE NORTH AND EAST THURSDAY AND THURSDAY NIGHT.
ANOTHER ROUND OF COLDER TEMPERATURES FOLLOWS THURSDAY NIGHT THROUGH
FRIDAY NIGHT. COULD SEE MANY LOCATIONS BELOW ZERO FOR LOWS ONCE
AGAIN DURING THIS TIME.

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
IA...NONE.
MN...NONE
NE...NONE.
SD...NONE.

&&
Hazardous weather outlook, Jan 19, 10:36 PM CST, 5 hours 8 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1036 PM CST SAT JAN 19 2013

SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098-
IAZ001>003-012>014-020>022-031-032-NEZ013-014-201200-
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-
1036 PM CST SAT JAN 19 2013

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

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A HALF AN INCH TO AN INCH OF SNOW CAN BE EXPECTED ACROSS MUCH OF
THE AREA DURING THE DAY ON SUNDAY.

TEMPERATURES ARE EXPECTED TO FALL BELOW ZERO ACROSS THE REGION
SUNDAY NIGHT.  THIS COMBINED WITH WINDS OF 10 TO 15 MPH WILL
PRODUCE WIND CHILL VALUES OF 20 TO 40 BELOW ZERO.

LIGHT SNOW ACCUMULATIONS WILL BE POSSIBLE ON SUNDAY MAINLY EAST
OF THE JAMES RIVER VALLEY. ACCUMULATIONS SHOULD GENERALLY BE
AROUND HALF AN INCH OR LESS. WIND CHILL VALUES SUNDAY NIGHT INTO
MONDAY MORNING WILL FALL TO 25 BELOW ZERO AT TIMES IN MOST
LOCATIONS AND CLOSE TO 40 BELOW ZERO ALONG HIGHWAY 14.

.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
Jan 20, 3:44 AM CSTWind Chill AdvisoryFSDCottonwood, Jackson, Lincoln, Lyon, Murray, Nobles and 2 more48 hr

Nearby

Wind Chill Warnings in Minnesota, 2013Wind Chill Warnings in South Dakota, 2013Every wind chill warning in 2013

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.