Alert archive / South Dakota / Blizzard Warnings in 2021

Blizzard Warning 1, NWS Sioux Falls, SD

January 14, 20214 states

NWS Sioux Falls, SD issued this blizzard warning at Jan 14, 2021, 3:30 AM CST for 4 states. It took effect at Jan 14, 2021, 3:00 PM CST. It was in force for 27 hr. 54 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jan 14, 2021, 3:30 AM CST (09:30 UTC)
In effect from
Jan 14, 2021, 3:00 PM CST
Expired
Jan 15, 2021, 6:00 PM CST
In force
27 hr
Issued by
NWS Sioux Falls, SD
All 33 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, Brookings County, SD, Clay County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 41 km from the middle of the area, began a volume at 09:34 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

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

What was reported inside it

TimeReportWhereRemark
Jan 15, 12:00 AM CSTSNOW 24 Nw Okoboji, IACO-OP OBSERVER STATION VICI4 4.0 N WAHPETON.
Jan 15, 6:00 AM CSTSNOW 0.4Hurley, SDCOCORAHS STATION SD-TR-9 HURLEY 0.2 S.
Jan 15, 6:00 AM CSTSNOW 1.5Sioux City, IA
Jan 15, 6:00 AM CSTSNOW 1.7Sioux Falls, SD
Jan 15, 6:00 AM CSTSNOW 3Edgerton, MNCOCORAHS STATION MN-PS-6 EDGERTON 0.2 WSW.
Jan 15, 6:30 AM CSTSNOW 0.52 Ese Yankton, SDCO-OP OBSERVER STATION YTNS2 YANKTON 2 E.
Jan 15, 6:30 AM CSTSNOW 0.5Howard, SDCO-OP OBSERVER STATION HOWS2 HOWARD.
Jan 15, 7:00 AM CSTSNOW 0.61 S Brookings, SDCOCORAHS STATION SD-BK-43 BROOKINGS 1.0 S.
Jan 15, 7:00 AM CSTSNOW 111 N Colman, SDCOCORAHS STATION SD-MY-11 COLMAN 10.6 N.
Jan 15, 7:00 AM CSTSNOW 11 Wnw Edgerton, MNCOCORAHS STATION MN-PS-1 EDGERTON 0.5 W.
Jan 15, 7:00 AM CSTSNOW 16 Nw Montrose, SDCOCORAHS STATION SD-MC-1 MONTROSE 5.8 NW.
Jan 15, 7:00 AM CSTSNOW 1.3Brookings, SDCOCORAHS STATION SD-BK-7 BROOKINGS 0.2 SSW.
Jan 15, 7:00 AM CSTSNOW 1.63 Ne Crooks, SDCOCORAHS STATION SD-MH-71 RENNER 4.1 NW.
Jan 15, 7:00 AM CSTSNOW 21 Ese Colton, SDCO-OP OBSERVER STATION COLS2 0.6 E COLTON.
Jan 15, 7:00 AM CSTSNOW 21 Nnw Canton, SDCO-OP OBSERVER STATION CNNS2 CANTON.
Jan 15, 7:00 AM CSTSNOW 2Akron, IACO-OP OBSERVER STATION AKRI4 AKRON.
Jan 15, 7:00 AM CSTSNOW 2.14 Wnw Rowena, SDCOCORAHS STATION SD-MH-82 SIOUX FALLS 5.2 E.
Jan 15, 7:00 AM CSTSNOW 2.32 N Chester, SDCO-OP OBSERVER STATION CHES2 2.4 N CHESTER.
Jan 15, 7:00 AM CSTSNOW 3Sheldon, IACO-OP OBSERVER STATION SHDI4 SHELDON.
Jan 15, 7:00 AM CSTSNOW 3.11 E Spirit Lake, IACO-OP OBSERVER STATION SPRI4 0.6 E SPIRIT LAKE.
Jan 15, 7:00 AM CSTSNOW 3.53 Nw Everly, IACO-OP OBSERVER STATION EVYI4 2.8 NW EVERLY.
Jan 15, 7:00 AM CSTSNOW 46 Sw Ivanhoe, MNCOCORAHS STATION MN-LN-4 HENDRICKS 8.0 SE.
Jan 15, 7:00 AM CSTSNOW 49 Ne White, SDCOCORAHS STATION SD-BK-2 ASTORIA 2.2 SSE.
Jan 15, 7:00 AM CSTSNOW 4.23 N Hornick, IACO-OP OBSERVER STATION HLYI4 3.4 N HORNICK.
Jan 15, 8:00 AM CSTSNOW 1Bridgewater, SDCO-OP OBSERVER STATION BRGS2 BRIDGEWATER.
Jan 15, 8:00 AM CSTSNOW 1.51 N Rock Rapids, IACO-OP OBSERVER STATION RKRI4 ROCK RAPIDS.
Jan 15, 8:00 AM CSTSNOW 1.5Hull, IA
Jan 15, 8:00 AM CSTSNOW 21 Ne Brookings, SDCO-OP OBSERVER STATION BROS2 BROOKINGS 2 NE.
Jan 15, 8:00 AM CSTSNOW 21 N Marshall, MNCO-OP OBSERVER STATION MMLM5 MARSHALL.
Jan 15, 8:00 AM CSTSNOW 2.35 W Bruce, SDCOCORAHS STATION SD-BK-45 BRUCE 5.3 W.
Jan 15, 8:00 AM CSTSNOW 2.51 Ene Wall Lake, SDCOCORAHS STATION SD-MH-8 HARTFORD 6.4 S.
Jan 15, 8:00 AM CSTSNOW 2.5Hills, MNCOCORAHS STATION MN-RK-5 HILLS 0.2 NW.
Jan 15, 8:00 AM CSTSNOW 2.5Orange City, IACOCORAHS STATION IA-SX-9 ORANGE CITY 0.4 WNW.
Jan 15, 8:00 AM CSTSNOW 2.63 Nw Windom, MNCO-OP OBSERVER STATION WDOM5 2.6 NW WINDOM.
Jan 15, 8:00 AM CSTSNOW 31 Ene Cherokee, IACO-OP OBSERVER STATION CKPI4 0.9 NE CHEROKEE.
Jan 15, 8:00 AM CSTSNOW 31 Sw Brookings, SDCOCORAHS STATION SD-BK-3 BROOKINGS 1.4 SW.
Jan 15, 8:00 AM CSTSNOW 4.5Storm Lake, IACO-OP OBSERVER STATION SLBI4 STORM LAKE.
Jan 15, 9:00 AM CSTSNOW 21 Sse Madison, SDCO-OP OBSERVER STATION MRFS2 MADISON 2SE.
Jan 15, 9:27 AM CSTSNOW 41 N Spencer, IACO-OP OBSERVER STATION 3SE SPENCER 1 N.
Jan 15, 9:27 AM CSTSNOW 4.91 N Spencer, IAUPDATES PREVIOUS SNOW REPORT FROM 1 N SPENCER. CO-OP OBSERVER STATION 3SE SPENCER 1 N.
Jan 15, 10:00 AM CSTSNOW 16 Nne Elk Point, SDCOCORAHS STATION SD-UN-2 ELK POINT 5.6 NNE.
Jan 15, 11:45 AM CSTSNOW 33 Nne Sioux City, IAREPORTED AT KTIV IN SIOUX CITY.
Jan 15, 12:00 PM CSTSNOW 3.4Remsen, IACO-OP OBSERVER STATION RMSI4 REMSEN.
Jan 15, 12:00 PM CSTSNOW 3.4Remsen, IASTORM TOTAL SNOWFALL FOR CO-OP OBSERVER STATION RMSI4 REMSEN.
Jan 15, 12:30 PM CSTSNOW 64 N Currie, MNCOCORAHS STATION MN-MY-5 TRACY 7.8 SSW.
Jan 15, 1:53 PM CSTSNOW 2Hull, IAREPORT VIA SOCIAL MEDIA.
Jan 15, 1:57 PM CSTSNOW 12 W Vermillion, SDREPORT VIA SOCIAL MEDIA.
Jan 15, 2:00 PM CSTSNOW 5.53 W Storm Lake, IAREPORT VIA SOCIAL MEDIA.
Jan 15, 2:20 PM CSTSNOW 21 N Hospers, IAREPORT VIA SOCIAL MEDIA.
Jan 15, 3:00 PM CSTSNOW 54 N Cleghorn, IACOCORAHS STATION IA-CK-1 CLEGHORN 4.4 N.
Jan 15, 4:00 PM CSTSNOW 5Primghar, IASTORM TOTAL SNOWFALL AT CO-OP OBSERVER STATION PGHI4 PRIMGHAR.
Jan 15, 5:00 PM CSTSNOW 2Sergeant Bluff, IASTILL LIGHT SNOW FALLING.
Jan 15, 5:00 PM CSTSNOW 42 E Concord, NESTORM TOTAL SNOWFALL FOR CO-OP OBSERVER STATION NESN1 CONCORD.
Jan 15, 6:00 PM CSTSNOW 2.13 N Sioux Falls, SDSTORM TOTAL SNOWFALL.

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

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 9.5 hours before the alert went out and 233 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, Omaha, NE at 00:00Z on 2021-01-14Temperature 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, Omaha, NE at 00:00Z on 2021-01-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 square meters per square second.19395878Sfc1 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
2043 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
51 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

499 
WWUS43 KFSD 140930
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
330 AM CST Thu Jan 14 2021

IAZ003-MNZ071-072-080-081-089-090-097-SDZ040-141800-
/O.UPG.KFSD.WS.A.0001.210114T1800Z-210116T0000Z/
/O.NEW.KFSD.BZ.W.0001.210114T2100Z-210116T0000Z/
Dickinson-Lincoln-Lyon-Murray-Cottonwood-Nobles-Jackson-Pipestone-
Brookings-
330 AM CST Thu Jan 14 2021

...BLIZZARD WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 6 PM
CST FRIDAY...

* WHAT...Blizzard conditions expected. Total snow accumulations of
  4 to 9 inches. Winds gusting as high as 60 mph.

* WHERE...Portions of east central South Dakota, northwest Iowa 
  and southwest Minnesota.

* WHEN...From 3 PM this afternoon to 6 PM CST Friday.

* IMPACTS...Falling and blowing snow with strong winds and poor
  visibilities are likely. This will lead to whiteout
  conditions...making travel extremely dangerous. Do not travel.
  If you must travel...have a winter survival kit with you. If you
  get stranded...stay with your vehicle. The hazardous conditions
  will impact the morning and evening commute. Strong winds could
  cause tree damage.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ001-012-020-031-MNZ098-NEZ013-014-SDZ039-054>056-061-062-066-
067-069>071-141800-
/O.UPG.KFSD.WS.A.0001.210115T0600Z-210116T0000Z/
/O.NEW.KFSD.BZ.W.0001.210115T0000Z-210116T0000Z/
Lyon-Sioux-Plymouth-Woodbury-Rock-Dixon-Dakota-Kingsbury-Miner-
Lake-Moody-McCook-Minnehaha-Turner-Lincoln-Yankton-Clay-Union-
330 AM CST Thu Jan 14 2021

...BLIZZARD WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM CST
FRIDAY...

* WHAT...Blizzard conditions expected. Total snow accumulations of
  1 to 3 inches. Winds gusting as high as 60 mph.

* WHERE...Portions of east central and southeast South Dakota, 
  northeast Nebraska, northwest and west central Iowa and 
  southwest Minnesota.

* WHEN...From 6 PM this evening to 6 PM CST Friday.

* IMPACTS...Falling and blowing snow with strong winds and poor
  visibilities are likely. This will lead to whiteout
  conditions...making travel extremely dangerous. Do not travel.
  If you must travel...have a winter survival kit with you. If you
  get stranded...stay with your vehicle. The hazardous conditions
  will impact the morning and evening commute. Strong winds could
  cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ002-013-014-021-022-032-141800-
/O.UPG.KFSD.WS.A.0001.210115T0600Z-210116T0000Z/
/O.NEW.KFSD.BZ.W.0001.210114T2100Z-210116T0000Z/
Osceola-O'Brien-Clay-Cherokee-Buena Vista-Ida-
330 AM CST Thu Jan 14 2021

...BLIZZARD WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 6 PM
CST FRIDAY...

* WHAT...Blizzard conditions expected. Total snow accumulations of
  3 to 5 inches. Winds gusting as high as 60 mph.

* WHERE...Portions of northwest and west central Iowa.

* WHEN...From 3 PM this afternoon to 6 PM CST Friday.

* IMPACTS...Falling and blowing snow with strong winds and poor
  visibilities are likely. This will lead to whiteout
  conditions...making travel extremely dangerous. Do not travel.
  If you must travel...have a winter survival kit with you. If you
  get stranded...stay with your vehicle. The hazardous conditions
  will impact the morning and evening commute. Strong winds could
  cause tree damage.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/siouxfalls
7 follow-up statements
815 
WWUS43 KFSD 141756
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
1156 AM CST Thu Jan 14 2021

IAZ002-003-013-014-021-022-032-MNZ071-072-080-081-089-090-097-
SDZ040-151200-
/O.CON.KFSD.BZ.W.0001.210114T2100Z-210116T0000Z/
Osceola-Dickinson-O'Brien-Clay-Cherokee-Buena Vista-Ida-Lincoln-
Lyon-Murray-Cottonwood-Nobles-Jackson-Pipestone-Brookings-
1156 AM CST Thu Jan 14 2021

...BLIZZARD WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
6 PM CST FRIDAY...

* WHAT...Blizzard conditions expected. Total snow accumulations 
  of 3 to 8 inches. Winds gusting as high as 60 mph.

* WHERE...Portions of east central South Dakota, northwest and 
  west central Iowa and southwest Minnesota.

* WHEN...From 3 PM this afternoon to 6 PM CST Friday.

* IMPACTS...Travel could be very difficult. Areas of blowing snow
  could significantly reduce visibility. The hazardous conditions
  will likely impact the evening and morning commutes. Strong 
  winds could cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ001-012-020-031-MNZ098-NEZ013-014-SDZ039-054>056-061-062-066-
067-069>071-151200-
/O.CON.KFSD.BZ.W.0001.210115T0000Z-210116T0000Z/
Lyon-Sioux-Plymouth-Woodbury-Rock-Dixon-Dakota-Kingsbury-Miner-
Lake-Moody-McCook-Minnehaha-Turner-Lincoln-Yankton-Clay-Union-
1156 AM CST Thu Jan 14 2021

...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
6 PM CST FRIDAY...

* WHAT...Blizzard conditions expected. Total snow accumulations 
  of 2 to 6 inches. Winds gusting as high as 60 mph.

* WHERE...Portions of east central and southeast South Dakota, 
  northeast Nebraska, northwest and west central Iowa and 
  southwest Minnesota.

* WHEN...From 6 PM this evening to 6 PM CST Friday.

* IMPACTS...Travel could be very difficult. Areas of blowing snow
  could significantly reduce visibility. The hazardous conditions
  will likely impact the evening and morning commutes. Strong 
  winds could cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/siouxfalls
641 
WWUS43 KFSD 142055
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
255 PM CST Thu Jan 14 2021

IAZ001-MNZ098-SDZ039-054>056-061-062-066-067-069-151200-
/O.NEW.KFSD.WW.Y.0002.210115T1200Z-210115T2100Z/
/O.EXT.KFSD.BZ.W.0001.210115T0000Z-210115T1200Z/
Lyon-Rock-Kingsbury-Miner-Lake-Moody-McCook-Minnehaha-Turner-
Lincoln-Yankton-
255 PM CST Thu Jan 14 2021

...BLIZZARD WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO 6 AM
CST FRIDAY...
...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TO 3 PM CST
FRIDAY...

* WHAT...For the Blizzard Warning, snow accumulations of up to two
  inches with winds gusting as high as 60 mph. For the Winter
  Weather Advisory, total snow accumulations of less than one inch
  with winds gusting as high as 55 mph.

* WHERE...Portions of east central and southeast South Dakota, 
  northwest Iowa and southwest Minnesota.

* WHEN...For the Blizzard Warning, from 6 PM this evening to 6 
  AM CST Friday. For the Winter Weather Advisory, from 6 AM to 3 
  PM CST Friday.

* IMPACTS...Travel could be difficult through the early morning
  hours Friday, with patchy blowing snow reducing visibility. 
  Strong winds could cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only during the
Blizzard Warning timeframe. If you must travel, have a winter 
survival kit with you. If you get stranded, stay with your 
vehicle. 

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ002-003-013-014-021-022-032-MNZ071-072-080-081-089-090-097-
SDZ040-151200-
/O.CON.KFSD.BZ.W.0001.210114T2100Z-210116T0000Z/
Osceola-Dickinson-O'Brien-Clay-Cherokee-Buena Vista-Ida-Lincoln-
Lyon-Murray-Cottonwood-Nobles-Jackson-Pipestone-Brookings-
255 PM CST Thu Jan 14 2021

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST FRIDAY...

* WHAT...Blizzard conditions expected. Total snow accumulations 
  of 3 to 7 inches. Winds gusting as high as 60 mph.

* WHERE...Portions of east central South Dakota, northwest and 
  west central Iowa and southwest Minnesota.

* WHEN...Until 6 PM CST Friday.

* IMPACTS...Travel could be very difficult. Areas of blowing snow
  could significantly reduce visibility. The hazardous conditions
  will likely impact the evening and morning commutes. Strong 
  winds could cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ012-020-031-NEZ013-014-SDZ070-071-151200-
/O.CON.KFSD.BZ.W.0001.210115T0000Z-210116T0000Z/
Sioux-Plymouth-Woodbury-Dixon-Dakota-Clay-Union-
255 PM CST Thu Jan 14 2021

...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
6 PM CST FRIDAY...

* WHAT...Blizzard conditions expected. Total snow accumulations 
  of 3 to 5 inches. Winds gusting as high as 60 mph.

* WHERE...Portions of southeast South Dakota, northeast Nebraska 
  and northwest and west central Iowa.

* WHEN...From 6 PM this evening to 6 PM CST Friday.

* IMPACTS...Travel could be very difficult. Areas of blowing snow
  could significantly reduce visibility. The hazardous conditions
  will likely impact the evening and morning commutes. Strong 
  winds could cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/siouxfalls
918 
WWUS43 KFSD 150234
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
834 PM CST Thu Jan 14 2021

IAZ001-MNZ098-SDZ039-054>056-061-062-066-067-069-151045-
/O.CON.KFSD.BZ.W.0001.000000T0000Z-210115T1200Z/
/O.CON.KFSD.WW.Y.0002.210115T1200Z-210115T2100Z/
Lyon-Rock-Kingsbury-Miner-Lake-Moody-McCook-Minnehaha-Turner-
Lincoln-Yankton-
834 PM CST Thu Jan 14 2021

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM CST FRIDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 AM TO 3 PM
CST FRIDAY...

* WHAT...For the Blizzard Warning, snow accumulations of up to 
  two inches with winds gusting as high as 60 mph. For the 
  Winter Weather Advisory, total snow accumulations of less than 
  one inch with winds gusting as high as 55 mph.

* WHERE...Portions of east central and southeast South Dakota, 
  northwest Iowa and southwest Minnesota.

* WHEN...For the Blizzard Warning, until 6 AM CST Friday. For 
  the Winter Weather Advisory, from 6 AM to 3 PM CST Friday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning commute. Strong winds 
  could cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ002-003-013-014-021-022-032-MNZ071-072-080-081-089-090-097-
SDZ040-151045-
/O.CON.KFSD.BZ.W.0001.000000T0000Z-210116T0000Z/
Osceola-Dickinson-O'Brien-Clay-Cherokee-Buena Vista-Ida-Lincoln-
Lyon-Murray-Cottonwood-Nobles-Jackson-Pipestone-Brookings-
834 PM CST Thu Jan 14 2021

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST FRIDAY...

* WHAT...Blizzard conditions expected. Total snow accumulations 
  of 3 to 7 inches. Winds gusting as high as 60 mph.

* WHERE...Portions of east central South Dakota, northwest and 
  west central Iowa and southwest Minnesota.

* WHEN...Until 6 PM CST Friday.

* IMPACTS...Travel could be very difficult. Areas of blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute. Strong 
  winds could cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ012-020-031-NEZ013-014-SDZ070-071-151045-
/O.CON.KFSD.BZ.W.0001.000000T0000Z-210116T0000Z/
Sioux-Plymouth-Woodbury-Dixon-Dakota-Clay-Union-
834 PM CST Thu Jan 14 2021

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST FRIDAY...

* WHAT...Blizzard conditions expected. Total snow accumulations 
  of 3 to 5 inches. Winds gusting as high as 60 mph.

* WHERE...Portions of southeast South Dakota, northeast Nebraska 
  and northwest and west central Iowa.

* WHEN...Until 6 PM CST Friday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute. Strong 
  winds could cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/siouxfalls
130 
WWUS43 KFSD 150937
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
337 AM CST Fri Jan 15 2021

IAZ001-MNZ098-SDZ039-054>056-061-062-066-067-069-151745-
/O.CON.KFSD.BZ.W.0001.000000T0000Z-210115T1200Z/
/O.CON.KFSD.WW.Y.0002.210115T1200Z-210115T2100Z/
Lyon-Rock-Kingsbury-Miner-Lake-Moody-McCook-Minnehaha-Turner-
Lincoln-Yankton-
337 AM CST Fri Jan 15 2021

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...

* WHAT...For the Blizzard Warning, occasional blizzard conditions.
  Additional snow accumulations of around a half an inch. Winds
  gusting as high as 60 mph. For the Winter Weather Advisory, snow
  expected. Total snow accumulations of around a half an inch. 
  Winds gusting as high as 55 mph.

* WHERE...Portions of east central and southeast South Dakota, 
  northwest Iowa and southwest Minnesota.

* WHEN...For the Blizzard Warning, until 6 AM CST early this 
  morning. For the Winter Weather Advisory, until 3 PM CST this 
  afternoon.

* IMPACTS...Plan on slippery road conditions. Blowing snow will 
  significantly reduce visibility. The hazardous conditions could 
  impact the morning commute. Strong winds could cause tree 
  damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ002-003-013-014-021-022-032-MNZ071-072-080-081-089-090-097-
SDZ040-151745-
/O.CON.KFSD.BZ.W.0001.000000T0000Z-210116T0000Z/
Osceola-Dickinson-O'Brien-Clay-Cherokee-Buena Vista-Ida-Lincoln-
Lyon-Murray-Cottonwood-Nobles-Jackson-Pipestone-Brookings-
337 AM CST Fri Jan 15 2021

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Blizzard conditions. Additional snow accumulations of 1 
  to 2 inches. Winds gusting as high as 60 mph.

* WHERE...Portions of east central South Dakota, northwest and 
  west central Iowa and southwest Minnesota.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute. Strong 
  winds could cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ012-020-031-NEZ013-014-SDZ070-071-151745-
/O.CON.KFSD.BZ.W.0001.000000T0000Z-210116T0000Z/
Sioux-Plymouth-Woodbury-Dixon-Dakota-Clay-Union-
337 AM CST Fri Jan 15 2021

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Blizzard conditions. Additional snow accumulations of 1 
  to 3 inches. Winds gusting as high as 60 mph.

* WHERE...Portions of southeast South Dakota, northeast Nebraska 
  and northwest and west central Iowa.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute. Strong 
  winds could cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/siouxfalls
355 
WWUS43 KFSD 151208
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
608 AM CST Fri Jan 15 2021

IAZ001-MNZ098-SDZ039-054>056-061-062-066-067-069-152015-
/O.EXP.KFSD.BZ.W.0001.000000T0000Z-210115T1200Z/
/O.CON.KFSD.WW.Y.0002.000000T0000Z-210115T2100Z/
Lyon-Rock-Kingsbury-Miner-Lake-Moody-McCook-Minnehaha-Turner-
Lincoln-Yankton-
608 AM CST Fri Jan 15 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...
...BLIZZARD WARNING HAS EXPIRED...

* WHAT...Snow, blowing and drifting snow. Additional snow
  accumulations of up to one inch. Winds gusting as high as 55 
  mph. Visibilities as low as a half mile. 

* WHERE...Portions of east central and southeast South Dakota, 
  northwest Iowa and southwest Minnesota.

* WHEN...Until 3 PM CST this afternoon.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning commute. Strong winds 
  could cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ002-003-013-014-021-022-032-MNZ071-072-080-081-089-090-097-
SDZ040-152015-
/O.CON.KFSD.BZ.W.0001.000000T0000Z-210116T0000Z/
Osceola-Dickinson-O'Brien-Clay-Cherokee-Buena Vista-Ida-Lincoln-
Lyon-Murray-Cottonwood-Nobles-Jackson-Pipestone-Brookings-
608 AM CST Fri Jan 15 2021

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Blizzard conditions. Additional snow accumulations of 1 
  to 3 inches. Winds gusting as high as 60 mph.

* WHERE...Portions of east central South Dakota, northwest and 
  west central Iowa and southwest Minnesota.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute. Strong 
  winds could cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ012-020-031-NEZ013-014-SDZ070-071-152015-
/O.CON.KFSD.BZ.W.0001.000000T0000Z-210116T0000Z/
Sioux-Plymouth-Woodbury-Dixon-Dakota-Clay-Union-
608 AM CST Fri Jan 15 2021

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...Blizzard conditions. Additional snow accumulations of 
  up to two inches. Winds gusting as high as 60 mph.

* WHERE...Portions of southeast South Dakota, northeast Nebraska 
  and northwest and west central Iowa.

* WHEN...Until 6 PM CST this evening.

* IMPACTS...Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute. Strong 
  winds could cause tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/siouxfalls
113 
WWUS43 KFSD 152019
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
219 PM CST Fri Jan 15 2021

IAZ002-003-013-014-021-022-032-MNZ071-072-080-081-089-090-097-
SDZ040-160600-
/O.NEW.KFSD.WW.Y.0003.210116T0000Z-210116T0600Z/
/O.CON.KFSD.BZ.W.0001.000000T0000Z-210116T0000Z/
Osceola-Dickinson-O'Brien-Clay-Cherokee-Buena Vista-Ida-Lincoln-
Lyon-Murray-Cottonwood-Nobles-Jackson-Pipestone-Brookings-
219 PM CST Fri Jan 15 2021

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT CST TONIGHT...

* WHAT...Blizzard conditions through the evening. Additional snow
  accumulations of up to one inch with winds gusting as high as 
  45 mph. For the Winter Weather Advisory, snow and freezing 
  drizzle expected. Additional snow accumulations of less than 
  half an inch with a light glaze of ice possible. Winds gusting 
  as high as 35 mph.

* WHERE...Portions of east central South Dakota, northwest and 
  west central Iowa and southwest Minnesota.

* WHEN...For the Blizzard Warning, until 6 PM CST this evening. 
  For the Winter Weather Advisory, from 6 PM this evening to 
  midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. Patchy blowing snow
  could significantly reduce visibility. The hazardous conditions
  will likely impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ012-020-031-NEZ013-014-SDZ070-071-160600-
/O.NEW.KFSD.WW.Y.0003.210116T0000Z-210116T0600Z/
/O.CON.KFSD.BZ.W.0001.000000T0000Z-210116T0000Z/
Sioux-Plymouth-Woodbury-Dixon-Dakota-Clay-Union-
219 PM CST Fri Jan 15 2021

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT CST TONIGHT...

* WHAT...Blizzard conditions through the evening. Additional snow
  accumulations of up to one inch with winds gusting as high as 
  45 mph. For the Winter Weather Advisory, snow and freezing 
  drizzle expected. Additional snow accumulations of less than 
  half an inch with a light glaze of ice possible. Winds gusting 
  as high as 40 mph.

* WHERE...Portions of southeast South Dakota, northeast Nebraska 
  and northwest and west central Iowa.

* WHEN...For the Blizzard Warning, until 6 PM CST this evening. 
  For the Winter Weather Advisory, from 6 PM this evening to 
  midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. Patchy blowing snow
  could significantly reduce visibility. The hazardous conditions
  will likely impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ001-MNZ098-SDZ039-054>056-061-062-066-067-069-160600-
/O.EXT.KFSD.WW.Y.0002.000000T0000Z-210116T0600Z/
Lyon-Rock-Kingsbury-Miner-Lake-Moody-McCook-Minnehaha-Turner-
Lincoln-Yankton-
219 PM CST Fri Jan 15 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Snow and freezing drizzle. Additional snow accumulations
  of up to half an inch with a light glaze of ice possible. Winds
  gusting as high as 45 mph.

* WHERE...Portions of east central and southeast South Dakota, 
  northwest Iowa and southwest Minnesota.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. Patchy blowing snow
  could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/siouxfalls
866 
WWUS43 KFSD 160002
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
602 PM CST Fri Jan 15 2021

IAZ002-003-013-014-021-022-032-MNZ071-072-080-081-089-090-097-
SDZ040-160600-
/O.EXP.KFSD.BZ.W.0001.000000T0000Z-210116T0000Z/
/O.CON.KFSD.WW.Y.0003.000000T0000Z-210116T0600Z/
Osceola-Dickinson-O'Brien-Clay-Cherokee-Buena Vista-Ida-Lincoln-
Lyon-Murray-Cottonwood-Nobles-Jackson-Pipestone-Brookings-
602 PM CST Fri Jan 15 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...BLIZZARD WARNING HAS EXPIRED...

* WHAT...Light snow ending, with a chance of freezing drizzle
  developing. Additional snow accumulations of less than a half
  inch, with a light glaze of ice possible. Winds gusting as high
  as 40 mph early this evening, then gradually decreasing.

* WHERE...Portions of east central South Dakota, northwest and 
  west central Iowa and southwest Minnesota.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ012-020-031-NEZ013-014-SDZ070-071-160600-
/O.EXP.KFSD.BZ.W.0001.000000T0000Z-210116T0000Z/
/O.CON.KFSD.WW.Y.0003.000000T0000Z-210116T0600Z/
Sioux-Plymouth-Woodbury-Dixon-Dakota-Clay-Union-
602 PM CST Fri Jan 15 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...BLIZZARD WARNING HAS EXPIRED...

* WHAT...Light snow ending. Additional snow accumulations less
  than a half inch. Winds gusting as high as 40 mph early this
  evening, then gradually decreasing.

* WHERE...Portions of southeast South Dakota, northeast Nebraska 
  and northwest and west central Iowa.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

IAZ001-MNZ098-SDZ039-054>056-061-062-066-067-069-160600-
/O.CON.KFSD.WW.Y.0002.000000T0000Z-210116T0600Z/
Lyon-Rock-Kingsbury-Miner-Lake-Moody-McCook-Minnehaha-Turner-
Lincoln-Yankton-
602 PM CST Fri Jan 15 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Patchy blowing snow, flurries and freezing drizzle. A
  light glaze of ice possible. Winds gusting as high as 40 mph
  early this evening, then gradually decreasing.

* WHERE...Portions of east central and southeast South Dakota, 
  northwest Iowa and southwest Minnesota.

* WHEN...Until midnight CST tonight.

* IMPACTS...Patchy blowing snow could significantly reduce 
  visibility in open areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/siouxfalls

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 14, 2:55 PM CSTWinter Weather AdvisoryFSDKingsbury, Lake, Lincoln, McCook, Miner, Minnehaha and 3 more31 hr

Nearby

Blizzard Warnings in South Dakota, 2021Blizzard Warnings in Iowa, 2021Blizzard Warnings in Minnesota, 2021Every blizzard 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.