Alert archive / South Dakota / Wind Chill Warnings in 2021

Wind Chill Warning 1, NWS Aberdeen, SD

February 11, 202110 counties in South Dakota; Traverse County, Minnesota

NWS Aberdeen, SD issued this wind chill warning at Feb 11, 2021, 1:57 PM CST for 10 counties in South Dakota; Traverse County, Minnesota. It took effect at Feb 11, 2021, 9:35 PM CST. It was in force for 12 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
Feb 11, 2021, 1:57 PM CST (19:57 UTC)
In effect from
Feb 11, 2021, 9:35 PM CST
Expired
Feb 12, 2021, 10:00 AM CST
In force
12 hr
Issued by
NWS Aberdeen, SD

Counties Traverse County, MN, Brown County, SD, Campbell County, SD, Corson County, SD, Day County, SD, Dewey County, SD, Edmunds County, SD, Marshall County, SD, McPherson County, SD, Roberts County, SD, Walworth County, SD

The radar

The Aberdeen radar (KABR), 38 km from the middle of the area, began a volume at 19:58 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, 8.0 hours before the alert went out and 84 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 2021-02-11Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 12:00Z on 2021-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -70 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
887 m above ground
0-6 km bulk shear
86 kt
0-1 km storm-relative helicity
-70 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

225 
WWUS43 KABR 111957 AAB
WSWABR

URGENT - WINTER WEATHER MESSAGE...UPDATED
National Weather Service Aberdeen SD
157 PM CST Thu Feb 11 2021

...Even Colder Through the Weekend...


MNZ039-SDZ003>010-120400-
/O.NEW.KABR.WC.W.0001.210212T0500Z-210212T1600Z/
/O.NEW.KABR.WC.Y.0005.210212T1600Z-210213T2100Z/
/O.EXT.KABR.WC.Y.0004.000000T0000Z-210212T0500Z/
Traverse-Corson-Campbell-McPherson-Brown-Marshall-Roberts-
Walworth-Edmunds-
Including the cities of Wheaton, McIntosh, Herreid, Eureka, 
Aberdeen, Britton, Sisseton, Mobridge, and Ipswich
157 PM CST Thu Feb 11 2021 /1257 PM MST Thu Feb 11 2021/

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 11 PM CST /10 PM MST/
THIS EVENING...
...WIND CHILL WARNING IN EFFECT FROM 11 PM CST /10 PM MST/ THIS
EVENING TO 10 AM CST /9 AM MST/ FRIDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 10 AM CST /9 AM MST/ FRIDAY
TO 3 PM CST /2 PM MST/ SATURDAY...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills
  expected. Wind chills as low as 40 below zero. For the first
  Wind Chill Advisory, very cold wind chills expected. Wind chills
  as low as 33 below zero. For the second Wind Chill Advisory, 
  very cold wind chills. Wind chills as low as 33 below zero.

* WHERE...Portions of north central and northeast South Dakota 
  and west central Minnesota.

* WHEN...For the Wind Chill Warning, from 11 PM CST /10 PM MST/ 
  this evening to 10 AM CST /9 AM MST/ Friday. For the first 
  Wind Chill Advisory, from 10 AM CST /9 AM MST/ Friday to 3 PM 
  CST /2 PM MST/ Saturday. For the second Wind Chill Advisory, 
  until 11 PM CST /10 PM MST/ this evening.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

SDZ018-033>037-045-048-051-120400-
/O.EXA.KABR.WC.Y.0004.000000T0000Z-210213T2100Z/
Spink-Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo-
Including the cities of Redfield, Fort Pierre, Onida, Pierre, 
Highmore, Miller, Murdo, Kennebec, and Fort Thompson
157 PM CST Thu Feb 11 2021 /1257 PM MST Thu Feb 11 2021/

...WIND CHILL ADVISORY IN EFFECT UNTIL 3 PM CST /2 PM MST/
SATURDAY...

* WHAT...Very cold wind chills. Wind chills as low as 30 below 
  zero.

* WHERE...Portions of central and northeast South Dakota.

* WHEN...Until 3 PM CST /2 PM MST/ Saturday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

* ADDITIONAL DETAILS...Wind chills may improve during the day
  before falling again at night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

MNZ046-SDZ011-015>017-019>023-120400-
/O.CON.KABR.WC.Y.0004.000000T0000Z-210213T2100Z/
Big Stone-Day-Dewey-Potter-Faulk-Clark-Codington-Grant-Hamlin-
Deuel-
Including the cities of Ortonville, Webster, Isabel, Gettysburg, 
Faulkton, Clark, Watertown, Milbank, Hayti, and Clear Lake
157 PM CST Thu Feb 11 2021 /1257 PM MST Thu Feb 11 2021/

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST /2 PM
MST/ SATURDAY...

* WHAT...Very cold wind chills. Wind chills as low as 35 below 
  zero.

* WHERE...Portions of north central and northeast South Dakota 
  and west central Minnesota.

* WHEN...Until 3 PM CST /2 PM MST/ Saturday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$
3 follow-up statements
281 
WWUS43 KABR 120335
WSWABR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Aberdeen SD
935 PM CST Thu Feb 11 2021

MNZ039-SDZ003>010-121145-
/O.CAN.KABR.WC.Y.0004.000000T0000Z-210212T0500Z/
/O.EXT.KABR.WC.W.0001.210212T0335Z-210212T1600Z/
/O.CON.KABR.WC.Y.0005.210212T1600Z-210213T2100Z/
Traverse-Corson-Campbell-McPherson-Brown-Marshall-Roberts-
Walworth-Edmunds-
Including the cities of Wheaton, McIntosh, Herreid, Eureka, 
Aberdeen, Britton, Sisseton, Mobridge, and Ipswich
935 PM CST Thu Feb 11 2021 /835 PM MST Thu Feb 11 2021/

...WIND CHILL WARNING NOW IN EFFECT UNTIL 10 AM CST /9 AM MST/
FRIDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 10 AM CST /9 AM
MST/ FRIDAY TO 3 PM CST /2 PM MST/ SATURDAY...

* WHAT...Dangerous wind chills from 30 below to 40 below zero.

* WHERE...Portions of north central and northeast South Dakota 
  and west central Minnesota.

* WHEN...For the Wind Chill Warning, until 10 AM CST /9 AM MST/ 
  Friday. For the Wind Chill Advisory, from 10 AM CST /9 AM MST/ 
  Friday to 3 PM CST /2 PM MST/ Saturday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

&&

$$

SDZ011-015-121145-
/O.UPG.KABR.WC.Y.0004.000000T0000Z-210213T2100Z/
/O.EXB.KABR.WC.W.0001.210212T0335Z-210212T1600Z/
/O.EXA.KABR.WC.Y.0005.210212T1600Z-210213T2100Z/
Day-Dewey-
Including the cities of Webster and Isabel
935 PM CST Thu Feb 11 2021 /835 PM MST Thu Feb 11 2021/

...WIND CHILL WARNING IN EFFECT UNTIL 10 AM CST /9 AM MST/
FRIDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 10 AM CST /9 AM MST/ FRIDAY
TO 3 PM CST /2 PM MST/ SATURDAY...

* WHAT...Dangerous wind chills from 30 below to 40 below zero.

* WHERE...Day and Dewey Counties.

* WHEN...For the Wind Chill Warning, until 10 AM CST /9 AM MST/ 
  Friday. For the Wind Chill Advisory, from 10 AM CST /9 AM MST/ 
  Friday to 3 PM CST /2 PM MST/ Saturday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

&&

$$

MNZ046-SDZ016>023-033>037-045-048-051-121145-
/O.CON.KABR.WC.Y.0004.000000T0000Z-210213T2100Z/
Big Stone-Potter-Faulk-Spink-Clark-Codington-Grant-Hamlin-Deuel-
Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo-
Including the cities of Ortonville, Gettysburg, Faulkton, 
Redfield, Clark, Watertown, Milbank, Hayti, Clear Lake, 
Fort Pierre, Onida, Pierre, Highmore, Miller, Murdo, Kennebec, 
and Fort Thompson
935 PM CST Thu Feb 11 2021 /835 PM MST Thu Feb 11 2021/

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST /2 PM
MST/ SATURDAY...

* WHAT...Very cold wind chills. Wind chills as low as 35 below 
  zero.

* WHERE...Portions of central, north central and northeast South 
  Dakota and west central Minnesota.

* WHEN...Until 3 PM CST /2 PM MST/ Saturday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Wear appropriate clothing, a hat, and gloves. 

&&

$$

Mohr
488 
WWUS43 KABR 121108
WSWABR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Aberdeen SD
508 AM CST Fri Feb 12 2021

MNZ039-SDZ003>011-015-121915-
/O.CON.KABR.WC.W.0001.000000T0000Z-210212T1600Z/
/O.CON.KABR.WC.Y.0005.210212T1600Z-210213T2100Z/
Traverse-Corson-Campbell-McPherson-Brown-Marshall-Roberts-
Walworth-Edmunds-Day-Dewey-
Including the cities of Wheaton, McIntosh, Herreid, Eureka, 
Aberdeen, Britton, Sisseton, Mobridge, Ipswich, Webster, 
and Isabel
508 AM CST Fri Feb 12 2021 /408 AM MST Fri Feb 12 2021/

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 10 AM CST /9 AM
MST/ THIS MORNING...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 10 AM CST /9 AM
MST/ THIS MORNING TO 3 PM CST /2 PM MST/ SATURDAY...

* WHAT...For the Wind Chill Warning, dangerously cold wind 
  chills. Wind chills as low as 45 below zero. For the Wind 
  Chill Advisory, very cold wind chills expected. Wind chills as 
  low as 40 below zero.

* WHERE...Portions of north central and northeast South Dakota 
  and west central Minnesota.

* WHEN...For the Wind Chill Warning, until 10 AM CST /9 AM MST/ 
  this morning. For the Wind Chill Advisory, from 10 AM CST /9 
  AM MST/ this morning to 3 PM CST /2 PM MST/ Saturday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

MNZ046-SDZ016>023-033>037-045-048-051-121915-
/O.CON.KABR.WC.Y.0004.000000T0000Z-210213T2100Z/
Big Stone-Potter-Faulk-Spink-Clark-Codington-Grant-Hamlin-Deuel-
Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo-
Including the cities of Ortonville, Gettysburg, Faulkton, 
Redfield, Clark, Watertown, Milbank, Hayti, Clear Lake, 
Fort Pierre, Onida, Pierre, Highmore, Miller, Murdo, Kennebec, 
and Fort Thompson
508 AM CST Fri Feb 12 2021 /408 AM MST Fri Feb 12 2021/

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST /2 PM
MST/ SATURDAY...

* WHAT...Very cold wind chills. Wind chills as low as 40 below 
  zero.

* WHERE...Portions of central, north central and northeast South 
  Dakota and west central Minnesota.

* WHEN...Until 3 PM CST /2 PM MST/ Saturday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$
273 
WWUS43 KABR 121558
WSWABR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Aberdeen SD
958 AM CST Fri Feb 12 2021

MNZ039-SDZ003>011-015-130000-
/O.EXP.KABR.WC.W.0001.000000T0000Z-210212T1600Z/
/O.CON.KABR.WC.Y.0005.210212T1600Z-210213T2100Z/
Traverse-Corson-Campbell-McPherson-Brown-Marshall-Roberts-
Walworth-Edmunds-Day-Dewey-
Including the cities of Wheaton, McIntosh, Herreid, Eureka, 
Aberdeen, Britton, Sisseton, Mobridge, Ipswich, Webster, 
and Isabel
958 AM CST Fri Feb 12 2021 /858 AM MST Fri Feb 12 2021/

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST /2 PM
MST/ SATURDAY...
...WIND CHILL WARNING WILL EXPIRE AT 10 AM CST /9 AM MST/ THIS
MORNING...

* WHAT...Very cold wind chills expected. Wind chills as low as 35 
  below zero.

* WHERE...Portions of north central and northeast South Dakota 
  and west central Minnesota.

* WHEN...Until 3 PM CST /2 PM MST/ Saturday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

MNZ046-SDZ016>023-033>037-045-048-051-130000-
/O.CON.KABR.WC.Y.0004.000000T0000Z-210213T2100Z/
Big Stone-Potter-Faulk-Spink-Clark-Codington-Grant-Hamlin-Deuel-
Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo-
Including the cities of Ortonville, Gettysburg, Faulkton, 
Redfield, Clark, Watertown, Milbank, Hayti, Clear Lake, 
Fort Pierre, Onida, Pierre, Highmore, Miller, Murdo, Kennebec, 
and Fort Thompson
958 AM CST Fri Feb 12 2021 /858 AM MST Fri Feb 12 2021/

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST /2 PM
MST/ SATURDAY...

* WHAT...Very cold wind chills. Wind chills as low as 35 below 
  zero.

* WHERE...Portions of central, north central and northeast South 
  Dakota and west central Minnesota.

* WHEN...Until 3 PM CST /2 PM MST/ Saturday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 11, 1:57 PM CSTWind Chill AdvisoryABRBrown, Campbell, Corson, Day, Dewey, Edmunds and 4 more32 hr

Nearby

Wind Chill Warnings in South Dakota, 2021Wind Chill Warnings in Minnesota, 2021Every wind chill warning in 2021

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.