Alert archive / South Dakota / Winter Storm Warnings in 2021

Winter Storm Warning 3, NWS Sioux Falls, SD

December 9, 20214 states

NWS Sioux Falls, SD issued this winter storm warning at Dec 9, 2021, 11:23 AM CST for 4 states. It took effect at Dec 10, 2021, 12:00 AM CST. It was in force for 27 hr. 59 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
Dec 9, 2021, 11:23 AM CST (17:23 UTC)
In effect from
Dec 10, 2021, 12:00 AM CST
Expired
Dec 11, 2021, 3:00 AM CST
In force
27 hr
Issued by
NWS Sioux Falls, SD
All 40 counties

Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Dickinson County, IA, Lyon County, IA, O'Brien County, IA, Osceola County, IA, Plymouth County, IA, Sioux 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, Dixon County, NE, Aurora 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, 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), 13 km from the middle of the area, began a volume at 17:24 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
Dec 10, 7:00 AM CSTSNOW 5.25 S Chamberlain, SD
Dec 10, 9:00 AM CSTHEAVY SNOW 813 Wnw Platte, SD
Dec 10, 12:30 PM CSTSNOW 7.51 Sse Mitchell, SD
Dec 10, 12:48 PM CSTSNOW 32 S Sioux Falls, SD
Dec 10, 1:00 PM CSTSNOW 2.93 N Sioux Falls, SD
Dec 10, 1:00 PM CSTSNOW 33 Sse Sioux Falls, SD
Dec 10, 1:10 PM CSTSNOW 3.3Lester, IA
Dec 10, 1:10 PM CSTHEAVY SNOW 3.5Lester, IATOTAL SNOWFALL THROUGH 1:10 PM. RECEIVED REPORT VIA SOCIAL MEDIA.
Dec 10, 1:16 PM CSTSNOW 3.54 Wnw Rowena, SD
Dec 10, 1:30 PM CSTHEAVY SNOW 8.23 Sse Mitchell, SD
Dec 10, 1:35 PM CSTSNOW 1Spirit Lake, IA
Dec 10, 1:55 PM CSTHEAVY SNOW 4.8Howard, SDTOTAL SNOWFALL THROUGH 1:55 PM.
Dec 10, 2:00 PM CSTHEAVY SNOW 5.54 Sw Wentworth, SDTOTAL AS OF 2 PM. STILL SNOWING. REPORT VIA SOCIAL MEDIA.
Dec 10, 2:30 PM CSTHEAVY SNOW 44 N Currie, MNTOTAL SNOWFALL THROUGH 2:30 PM.
Dec 10, 3:10 PM CSTHEAVY SNOW 5.81 Nw Harrisburg, SDTOTAL SNOWFALL THROUGH 3:10 PM. REPORT RECEIVED VIA SOCIAL MEDIA.
Dec 10, 3:30 PM CSTHEAVY SNOW 8Mitchell, SDTOTAL AS OF 330 PM. STILL SNOWING.
Dec 10, 3:45 PM CSTHEAVY SNOW 6Mountain Lake, MNTOTAL AS OF 345 PM. STILL SNOWING. REPORT VIA SOCIAL MEDIA.
Dec 10, 4:00 PM CSTHEAVY SNOW 5Jackson, MNTOTAL AS OF 4 PM. STILL SNOWING. REPORT VIA SOCIAL MEDIA.
Dec 10, 4:00 PM CSTHEAVY SNOW 6Worthing, SDTOTAL AS OF 4 PM. STILL SNOWING. REPORT VIA SOCIAL MEDIA.
Dec 10, 4:00 PM CSTHEAVY SNOW 6.54 Ese Sioux Falls, SDTOTAL AS OF 4PM. STILL SNOWING.
Dec 10, 4:00 PM CSTSNOW 7.44 Sse Sioux Falls, SD
Dec 10, 4:15 PM CSTHEAVY SNOW 3.58 S Brookings, SDTOTAL AS OF 415 PM. STILL SNOWING. REPORT VIA SOCIAL MEDIA.
Dec 10, 4:30 PM CSTHEAVY SNOW 71 Sw Canistota, SDTOTAL AS OF 430 PM. REPORT VIA SOCIAL MEDIA.
Dec 10, 4:30 PM CSTHEAVY SNOW 99 Nw Harrison, SDTOTAL AS OF 430 PM. REPORT VIA SOCIAL MEDIA.
Dec 10, 4:40 PM CSTHEAVY SNOW 6Flandreau, SDTOTAL AS OF 440 PM. STILL SNOWING. REPORT VIA SOCIAL MEDIA.
Dec 10, 4:45 PM CSTHEAVY SNOW 4Tyndall, SDTOTAL SNOWFALL THROUGH 4:45 PM.
Dec 10, 4:45 PM CSTHEAVY SNOW 84 Nw Hurley, SDTOTAL AS OF 445 PM. STILL SNOWING. REPORT VIA SOCIAL MEDIA.
Dec 10, 5:05 PM CSTHEAVY SNOW 64 N Currie, MNUPDATED TOTAL SNOWFALL THROUGH 5:05 PM.
Dec 10, 5:15 PM CSTHEAVY SNOW 74 Sw Sioux Falls, SDTOTAL AS OF 515 PM. STILL SNOWING. REPORT VIA SOCIAL MEDIA.
Dec 10, 5:25 PM CSTHEAVY SNOW 6Sioux Falls, SDTOTAL AS OF 525 PM. STILL SNOWING.
Dec 10, 5:30 PM CSTSNOW 13 Sse North Sioux City, SDTOTAL AS OF 530 PM. STILL SNOWING.
Dec 10, 5:30 PM CSTHEAVY SNOW 6Marion, SDTOTAL AS OF 530 PM. STILL SNOWING. REPORT VIA SOCIAL MEDIA.
Dec 10, 5:45 PM CSTSNOW 2.5Ponca, NETOTAL AS OF 545 PM. REPORT VIA SOCIAL MEDIA.
Dec 10, 5:45 PM CSTHEAVY SNOW 8.44 Ese Sioux Falls, SDTOTAL AS OF 545 PM. STILL SNOWING.
Dec 10, 5:50 PM CSTSNOW 2Vermillion, SDTOTAL AS OF 550 PM. REPORT VIA SOCIAL MEDIA.
Dec 10, 5:50 PM CSTHEAVY SNOW 6.3Madison, SDTOTAL AS OF 550 PM. REPORT VIA SOCIAL MEDIA.
Dec 10, 6:00 PM CSTHEAVY SNOW 8.13 N Sioux Falls, SDOFFICIAL SNOW TOTAL THROUGH 6 PM FOR NWS SIOUX FALLS AND SIOUX FALLS AIRPORT.
Dec 10, 6:15 PM CSTHEAVY SNOW 7.5Alexandria, SDTOTAL AS OF 615 PM. REPORT VIA SOCIAL MEDIA.
Dec 10, 6:15 PM CSTHEAVY SNOW 8Trosky, MNTOTAL AS OF 615 PM. REPORT VIA SOCIAL MEDIA.
Dec 10, 6:50 PM CSTHEAVY SNOW 9Windom, MNTOTAL AS OF 650 PM. REPORT VIA SOCIAL MEDIA.
Dec 10, 7:00 PM CSTHEAVY SNOW 6Ocheyedan, IATOTAL AS OF 700 PM. REPORT VIA SOCIAL MEDIA.
Dec 10, 7:00 PM CSTHEAVY SNOW 9.5Larchwood, IATOTAL AS OF 700 PM. REPORT VIA SOCIAL MEDIA.
Dec 10, 7:40 PM CSTSNOW 5Newcastle, NETOTAL AS OF 740 PM. REPORT VIA SOCIAL MEDIA.
Dec 10, 7:45 PM CSTHEAVY SNOW 93 Sse Sioux Falls, SDREPORT AS OF 745 PM.
Dec 10, 8:00 PM CSTSNOW 3.52 Ene Brookings, SDREPORT VIA SOCIAL MEDIA.
Dec 10, 8:10 PM CSTHEAVY SNOW 104 Sse Sioux Falls, SDTOTAL AS OF 810 PM.
Dec 10, 8:30 PM CSTSNOW 33 Sse North Sioux City, SDTOTAL AS OF 830 PM.
Dec 10, 8:40 PM CSTSNOW 4.5Hull, IATOTAL AS OF 840 PM. REPORT VIA SOCIAL MEDIA.
Dec 10, 9:17 PM CSTHEAVY SNOW 98 N Jeffers, MNTOTAL AS OF 917 PM. REPORT VIA SOCIAL MEDIA.
Dec 10, 10:00 PM CSTHEAVY SNOW 7.32 Wsw Garretson, SDCOCORAHS STATION SD-MH-91 GARRETSON 1.7 WSW.
Dec 10, 10:00 PM CSTSNOW 102 Ssw Sioux Falls, SDREPORT VIA SOCIAL MEDIA.
Dec 10, 10:00 PM CSTSNOW 10.5Larchwood, IAREPORT VIA SOCIAL MEDIA.
Dec 10, 10:40 PM CSTHEAVY SNOW 10.5Lennox, SDCORRECTS PREVIOUS SNOW REPORT FROM LENNOX. REPORT VIA SOCIAL MEDIA.
Dec 10, 10:40 PM CSTSNOW 10.5Lennox, SDREPORT VIA SOCIAL MEDIA.
Dec 10, 11:00 PM CSTHEAVY SNOW 8.31 Ssw Mitchell, SDCO-OP OBSERVER STATION MCLS2 MITCHELL.
Dec 10, 11:30 PM CSTSNOW 6Rock Valley, IA
Dec 10, 11:56 PM CSTSNOW 10.81 Nne Harrisburg, SD
Dec 11, 12:00 AM CSTSNOW 54 Nw Okoboji, IACO-OP OBSERVER STATION VICI4 4.0 N WAHPETON.
Dec 11, 12:00 AM CSTSNOW 7.53 W Yankton, SDREPORT VIA SOCIAL MEDIA.

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

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 5.4 hours before the alert went out and 199 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 2021-12-09Temperature 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 2021-12-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -33 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
1382 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
-33 m²/s²
0-3 km storm-relative helicity
31 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

228 
WWUS43 KFSD 091723
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
1123 AM CST Thu Dec 9 2021

SDZ050-059-060-063>065-068-069-100130-
/O.UPG.KFSD.WS.A.0005.211210T0600Z-211211T0600Z/
/O.NEW.KFSD.WS.W.0003.211210T0600Z-211211T0600Z/
Gregory-Davison-Hanson-Charles Mix-Douglas-Hutchinson-Bon Homme-
Yankton-
1123 AM CST Thu Dec 9 2021

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT CST FRIDAY NIGHT...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 8 
  inches.

* WHERE...Portions of south central and southeast South Dakota. 
  This includes the tribal lands of the Yankton Sioux Tribal 
  Nation.

* WHEN...From midnight tonight to midnight CST Friday night.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions could impact the morning and evening commute on
  Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

IAZ001>003-012>014-020>022-MNZ072-080-081-089-090-097-098-NEZ013-
SDZ055-056-061-062-066-067-070-071-100130-
/O.UPG.KFSD.WS.A.0005.211210T1200Z-211211T0600Z/
/O.NEW.KFSD.WS.W.0003.211210T1200Z-211211T0600Z/
Lyon-Osceola-Dickinson-Sioux-O'Brien-Clay-Plymouth-Cherokee-
Buena Vista-Murray-Cottonwood-Nobles-Jackson-Pipestone-Rock-Dixon-
Lake-Moody-McCook-Minnehaha-Turner-Lincoln-Union-
1123 AM CST Thu Dec 9 2021

...WINTER STORM WARNING IN EFFECT FROM 6 AM FRIDAY TO MIDNIGHT
CST FRIDAY NIGHT...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 
  10 inches.

* WHERE...Portions of east central and southeast South Dakota, 
  northeast Nebraska, northwest Iowa and southwest Minnesota. 
  This includes the tribal lands of the Flandreau Santee Sioux 
  Tribal Nation.

* WHEN...From 6 AM Friday to midnight CST Friday night.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Northeast winds will increase to 15 to 30
  mph in the afternoon producing patching blowing and drifting
  snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

SDZ057-058-100130-
/O.UPG.KFSD.WS.A.0005.211210T0600Z-211211T0600Z/
/O.NEW.KFSD.WW.Y.0013.211210T0600Z-211211T0600Z/
Brule-Aurora-
1123 AM CST Thu Dec 9 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT CST FRIDAY NIGHT...

* WHAT...Snow expected. Total snow accumulations of 4 to 6 
  inches.

* WHERE...Brule and Aurora Counties.

* WHEN...From midnight tonight to midnight CST Friday night.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

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.

&&

$$

IAZ031-NEZ014-100130-
/O.UPG.KFSD.WS.A.0005.211210T1200Z-211211T0600Z/
/O.NEW.KFSD.WW.Y.0013.211210T1200Z-211211T0600Z/
Woodbury-Dakota-
1123 AM CST Thu Dec 9 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM FRIDAY TO MIDNIGHT
CST FRIDAY NIGHT...

* WHAT...Snow expected. Total snow accumulations of 3 to 6 
  inches.

* WHERE...In Nebraska, Dakota County. In Iowa, Woodbury County.

* WHEN...From 6 AM Friday to midnight CST Friday night.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

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.

&&

$$

MNZ071-SDZ039-040-052>054-100130-
/O.NEW.KFSD.WW.Y.0013.211210T0600Z-211211T0600Z/
Lincoln-Kingsbury-Brookings-Jerauld-Sanborn-Miner-
1123 AM CST Thu Dec 9 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT CST FRIDAY NIGHT...

* WHAT...Snow expected. Total snow accumulations of 3 to 6 
  inches.

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

* WHEN...From midnight tonight to midnight CST Friday night.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

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.

&&

$$

IAZ032-100130-
/O.NEW.KFSD.WW.Y.0013.211210T1200Z-211211T0600Z/
Ida-
1123 AM CST Thu Dec 9 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM FRIDAY TO MIDNIGHT
CST FRIDAY NIGHT...

* WHAT...Snow expected. Total snow accumulations of 2 to 4 
  inches.

* WHERE...Ida County.

* WHEN...From 6 AM Friday to midnight CST Friday night.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

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
7 follow-up statements
501 
WWUS43 KFSD 100128
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
728 PM CST Thu Dec 9 2021

SDZ050-059-060-063>065-068-069-100930-
/O.CON.KFSD.WS.W.0003.211210T0600Z-211211T0600Z/
Gregory-Davison-Hanson-Charles Mix-Douglas-Hutchinson-Bon Homme-
Yankton-
728 PM CST Thu Dec 9 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO MIDNIGHT CST FRIDAY NIGHT...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 9 
  inches.

* WHERE...Portions of south central and southeast South Dakota. 
  This includes the tribal lands of the Yankton Sioux Tribal 
  Nation.

* WHEN...From midnight tonight to midnight CST Friday night.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

IAZ001>003-012>014-020>022-MNZ072-080-081-089-090-097-098-NEZ013-
SDZ055-056-061-062-066-067-070-071-100930-
/O.CON.KFSD.WS.W.0003.211210T1200Z-211211T0600Z/
Lyon-Osceola-Dickinson-Sioux-O'Brien-Clay-Plymouth-Cherokee-
Buena Vista-Murray-Cottonwood-Nobles-Jackson-Pipestone-Rock-Dixon-
Lake-Moody-McCook-Minnehaha-Turner-Lincoln-Union-
728 PM CST Thu Dec 9 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM FRIDAY TO
MIDNIGHT CST FRIDAY NIGHT...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 
  10 inches.

* WHERE...Portions of east central and southeast South Dakota, 
  northeast Nebraska, northwest Iowa and southwest Minnesota. 
  This includes the tribal lands of the Flandreau Santee Sioux 
  Tribal Nation.

* WHEN...From 6 AM Friday to midnight CST Friday night.

* IMPACTS...Travel could be very difficult to impossible. Patchy 
  blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute.

* ADDITIONAL DETAILS...Northeast winds will increase to 15 to 30
  mph in the afternoon producing patching blowing and drifting
  snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

MNZ071-SDZ039-040-052>054-057-058-100930-
/O.CON.KFSD.WW.Y.0013.211210T0600Z-211211T0600Z/
Lincoln-Kingsbury-Brookings-Jerauld-Sanborn-Miner-Brule-Aurora-
728 PM CST Thu Dec 9 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT
TONIGHT TO MIDNIGHT CST FRIDAY NIGHT...

* WHAT...Snow expected. Total snow accumulations of 3 to 7 
  inches. Lesser amounts nearer highway 14.

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

* WHEN...From midnight tonight to midnight CST Friday night.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

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.

&&

$$

IAZ031-032-NEZ014-100930-
/O.CON.KFSD.WW.Y.0013.211210T1200Z-211211T0600Z/
Woodbury-Ida-Dakota-
728 PM CST Thu Dec 9 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 AM FRIDAY TO
MIDNIGHT CST FRIDAY NIGHT...

* WHAT...Snow expected. Total snow accumulations of 2 to 5 
  inches.

* WHERE...In Nebraska, Dakota County. In Iowa, Ida and Woodbury 
  Counties.

* WHEN...From 6 AM Friday to midnight CST Friday night.

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

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
336 
WWUS43 KFSD 100918
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
318 AM CST Fri Dec 10 2021

MNZ071-SDZ040-052>054-057-058-101730-
/O.UPG.KFSD.WW.Y.0013.000000T0000Z-211211T0600Z/
/O.EXA.KFSD.WS.W.0003.000000T0000Z-211211T0600Z/
Lincoln-Brookings-Jerauld-Sanborn-Miner-Brule-Aurora-
318 AM CST Fri Dec 10 2021

...WINTER STORM WARNING IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

* WHAT...Heavy snow. Total snow accumulations of 5 to 8 inches.

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

* WHEN...Until midnight CST tonight.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

SDZ050-059-060-063>065-068-069-101730-
/O.CON.KFSD.WS.W.0003.000000T0000Z-211211T0600Z/
Gregory-Davison-Hanson-Charles Mix-Douglas-Hutchinson-Bon Homme-
Yankton-
318 AM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Heavy snow. Additional snow accumulations of 6 to 9 
  inches.

* WHERE...Portions of south central and southeast South Dakota. 
  This includes the tribal lands of the Yankton Sioux Tribal 
  Nation.

* WHEN...Until midnight CST tonight.

* IMPACTS...Travel could be very difficult to impossible. Patchy 
  blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

IAZ001>003-012>014-020>022-MNZ072-080-081-089-090-097-098-NEZ013-
SDZ055-056-061-062-066-067-070-071-101730-
/O.CON.KFSD.WS.W.0003.211210T1200Z-211211T0600Z/
Lyon-Osceola-Dickinson-Sioux-O'Brien-Clay-Plymouth-Cherokee-
Buena Vista-Murray-Cottonwood-Nobles-Jackson-Pipestone-Rock-Dixon-
Lake-Moody-McCook-Minnehaha-Turner-Lincoln-Union-
318 AM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 
  12 inches.

* WHERE...Portions of east central and southeast South Dakota, 
  northeast Nebraska, northwest Iowa and southwest Minnesota. 
  This includes the tribal lands of the Flandreau Santee Sioux 
  Tribal Nation.

* WHEN...Until midnight CST tonight.

* IMPACTS...Travel could be very difficult to impossible. Patchy 
  blowing snow could significantly reduce visibility. The 
  hazardous conditions could impact the morning or evening 
  commute.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

SDZ038-101730-
/O.EXA.KFSD.WW.Y.0013.211210T1200Z-211211T0600Z/
Beadle-
318 AM CST Fri Dec 10 2021

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

* WHAT...Snow expected. Total snow accumulations of 2 to 4 
  inches.

* WHERE...Beadle County.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.


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.

&&

$$

IAZ031-032-NEZ014-101730-
/O.CON.KFSD.WW.Y.0013.211210T1200Z-211211T0600Z/
Woodbury-Ida-Dakota-
318 AM CST Fri Dec 10 2021

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

* WHAT...Snow expected. Total snow accumulations of 3 to 5 
  inches.

* WHERE...In Nebraska, Dakota County. In Iowa, Ida and Woodbury 
  Counties.

* WHEN...Until midnight CST tonight.

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

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.

&&

$$

SDZ039-101730-
/O.CON.KFSD.WW.Y.0013.000000T0000Z-211211T0600Z/
Kingsbury-
318 AM CST Fri Dec 10 2021

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

* WHAT...Snow. Additional snow accumulations of 3 to 5 inches.

* WHERE...Kingsbury County.

* WHEN...Until midnight CST tonight.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

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
068 
WWUS43 KFSD 101918
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
118 PM CST Fri Dec 10 2021

SDZ050-059-060-063>065-068-069-110330-
/O.CON.KFSD.WS.W.0003.000000T0000Z-211211T0600Z/
Gregory-Davison-Hanson-Charles Mix-Douglas-Hutchinson-Bon Homme-
Yankton-
118 PM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Heavy snow. Additional snow accumulations of 3 to 5 
  inches.

* WHERE...Portions of south central and southeast South Dakota. 
  This includes the tribal lands of the Yankton Sioux Tribal 
  Nation.

* WHEN...Until midnight CST tonight.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility. The hazardous 
  conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

IAZ001>003-012>014-020>022-MNZ072-080-081-089-090-097-098-NEZ013-
SDZ055-056-061-062-066-067-070-071-110330-
/O.CON.KFSD.WS.W.0003.000000T0000Z-211211T0600Z/
Lyon-Osceola-Dickinson-Sioux-O'Brien-Clay-Plymouth-Cherokee-
Buena Vista-Murray-Cottonwood-Nobles-Jackson-Pipestone-Rock-Dixon-
Lake-Moody-McCook-Minnehaha-Turner-Lincoln-Union-
118 PM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Heavy snow. Additional snow accumulations of 4 to 10
  inches, with highest amounts in portions of southwest 
  Minnesota.

* WHERE...Portions of east central and southeast South Dakota, 
  northeast Nebraska, northwest Iowa and southwest Minnesota. 
  This includes the tribal lands of the Flandreau Santee Sioux 
  Tribal Nation.

* WHEN...Until midnight CST tonight.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility. The hazardous 
  conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

MNZ071-SDZ040-052>054-057-058-110330-
/O.CON.KFSD.WS.W.0003.000000T0000Z-211211T0600Z/
Lincoln-Brookings-Jerauld-Sanborn-Miner-Brule-Aurora-
118 PM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Heavy snow. Additional snow accumulations of 2 to 4 
  inches.

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

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

IAZ031-032-NEZ014-110330-
/O.CON.KFSD.WW.Y.0013.000000T0000Z-211211T0600Z/
Woodbury-Ida-Dakota-
118 PM CST Fri Dec 10 2021

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

* WHAT...Snow. Additional snow accumulations of 3 to 5 inches.

* WHERE...In Nebraska, Dakota County. In Iowa, Ida and Woodbury 
  Counties.

* WHEN...Until midnight CST tonight.

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

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.

&&

$$

SDZ038-039-110330-
/O.CON.KFSD.WW.Y.0013.000000T0000Z-211211T0600Z/
Beadle-Kingsbury-
118 PM CST Fri Dec 10 2021

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

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches.

* WHERE...Beadle and Kingsbury Counties.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the evening commute.

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
747 
WWUS43 KFSD 102021
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
221 PM CST Fri Dec 10 2021

IAZ002-003-013-014-021-022-MNZ081-090-110600-
/O.EXT.KFSD.WS.W.0003.000000T0000Z-211211T0900Z/
Osceola-Dickinson-O'Brien-Clay-Cherokee-Buena Vista-Cottonwood-
Jackson-
221 PM CST Fri Dec 10 2021

...WINTER STORM WARNING NOW IN EFFECT UNTIL 3 AM CST SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 5 to 10 
  inches, with the highest amounts in portions of southwest 
  Minnesota. Winds gusting as high as 35 mph this afternoon.

* WHERE...Portions of northwest Iowa and southwest Minnesota.

* WHEN...Until 3 AM CST Saturday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility. The hazardous 
  conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

SDZ050-059-060-063>065-068-069-110600-
/O.CON.KFSD.WS.W.0003.000000T0000Z-211211T0600Z/
Gregory-Davison-Hanson-Charles Mix-Douglas-Hutchinson-Bon Homme-
Yankton-
221 PM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Heavy snow. Additional snow accumulations of 3 to 5 
  inches.

* WHERE...Portions of south central and southeast South Dakota. 
  This includes the tribal lands of the Yankton Sioux Tribal 
  Nation.

* WHEN...Until midnight CST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

IAZ001-012-020-MNZ072-080-089-097-098-NEZ013-SDZ055-056-061-062-
066-067-070-071-110600-
/O.CON.KFSD.WS.W.0003.000000T0000Z-211211T0600Z/
Lyon-Sioux-Plymouth-Murray-Nobles-Pipestone-Rock-Dixon-Lake-Moody-
McCook-Minnehaha-Turner-Lincoln-Clay-Union-
221 PM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Heavy snow. Additional snow accumulations of 4 to 10
  inches, with the highest amounts in portions of southwest 
  Minnesota.

* WHERE...Portions of east central and southeast South Dakota, 
  northeast Nebraska, northwest Iowa and southwest Minnesota. 
  This includes the tribal lands of the Flandreau Santee Sioux 
  Tribal Nation.

* WHEN...Until midnight CST tonight.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility. The hazardous 
  conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

MNZ071-SDZ040-052>054-057-058-110600-
/O.CON.KFSD.WS.W.0003.000000T0000Z-211211T0600Z/
Lincoln-Brookings-Jerauld-Sanborn-Miner-Brule-Aurora-
221 PM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Heavy snow. Additional snow accumulations of 1 to 4 
  inches.

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

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

IAZ032-110600-
/O.EXT.KFSD.WW.Y.0013.000000T0000Z-211211T0900Z/
Ida-
221 PM CST Fri Dec 10 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 3 AM CST
SATURDAY...

* WHAT...Snow. Additional snow accumulations of 3 to 5 inches. 
  Winds gusting as high as 35 mph this afternoon.

* WHERE...Ida County.

* WHEN...Until 3 AM CST Saturday.

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

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.

&&

$$

IAZ031-NEZ014-110600-
/O.CON.KFSD.WW.Y.0013.000000T0000Z-211211T0600Z/
Woodbury-Dakota-
221 PM CST Fri Dec 10 2021

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

* WHAT...Snow. Additional snow accumulations of 3 to 5 inches.

* WHERE...In Nebraska, Dakota County. In Iowa, Woodbury County.

* WHEN...Until midnight CST tonight.

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

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.

&&

$$

SDZ038-039-110600-
/O.CON.KFSD.WW.Y.0013.000000T0000Z-211211T0600Z/
Beadle-Kingsbury-
221 PM CST Fri Dec 10 2021

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

* WHAT...Snow. Additional snow accumulations of up to two inches.

* WHERE...Beadle and Kingsbury Counties.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the evening commute.

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
046 
WWUS43 KFSD 110142
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
742 PM CST Fri Dec 10 2021

SDZ050-052-053-057>059-063-064-110245-
/O.CAN.KFSD.WS.W.0003.000000T0000Z-211211T0600Z/
Gregory-Jerauld-Sanborn-Brule-Aurora-Davison-Charles Mix-Douglas-
742 PM CST Fri Dec 10 2021

...WINTER STORM WARNING IS CANCELLED...

Accumulating snow has come to an end for the night.

$$

SDZ038-039-110245-
/O.CAN.KFSD.WW.Y.0013.000000T0000Z-211211T0600Z/
Beadle-Kingsbury-
742 PM CST Fri Dec 10 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Accumulating snow has come to an end for the night.

$$

SDZ060-065-068-069-110600-
/O.CON.KFSD.WS.W.0003.000000T0000Z-211211T0600Z/
Hanson-Hutchinson-Bon Homme-Yankton-
742 PM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Heavy snow. Additional snow accumulations of up to 1 inch.

* WHERE...Yankton, Bon Homme, Hanson and Hutchinson Counties.

* WHEN...Until midnight CST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

IAZ001-012-020-MNZ072-080-089-097-098-NEZ013-SDZ055-056-061-062-
066-067-070-071-110600-
/O.CON.KFSD.WS.W.0003.000000T0000Z-211211T0600Z/
Lyon-Sioux-Plymouth-Murray-Nobles-Pipestone-Rock-Dixon-Lake-Moody-
McCook-Minnehaha-Turner-Lincoln-Clay-Union-
742 PM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Heavy snow. Additional snow accumulations of one half to
  2 inches.

* WHERE...Portions of east central and southeast South Dakota, 
  northeast Nebraska, northwest Iowa and southwest Minnesota. 
  This includes the tribal lands of the Flandreau Santee Sioux 
  Tribal Nation.

* WHEN...Until midnight CST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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-MNZ081-090-110900-
/O.CON.KFSD.WS.W.0003.000000T0000Z-211211T0900Z/
Osceola-Dickinson-O'Brien-Clay-Cherokee-Buena Vista-Cottonwood-
Jackson-
742 PM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM CST
SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 2 to 4 
  inches.

* WHERE...Portions of northwest Iowa and southwest Minnesota.

* WHEN...Until 3 AM CST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

MNZ071-SDZ040-054-110600-
/O.CON.KFSD.WS.W.0003.000000T0000Z-211211T0600Z/
Lincoln-Brookings-Miner-
742 PM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Snow. Additional snow accumulations of up to a half 
  inch.

* WHERE...In South Dakota, Brookings and Miner Counties. In 
  Minnesota, Lincoln County.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

IAZ031-NEZ014-110600-
/O.CON.KFSD.WW.Y.0013.000000T0000Z-211211T0600Z/
Woodbury-Dakota-
742 PM CST Fri Dec 10 2021

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

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches.

* WHERE...In Nebraska, Dakota County. In Iowa, Woodbury County.

* 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.

&&

$$

IAZ032-110900-
/O.CON.KFSD.WW.Y.0013.000000T0000Z-211211T0900Z/
Ida-
742 PM CST Fri Dec 10 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST
SATURDAY...

* WHAT...Snow. Additional snow accumulations of 2 to 4 inches.

* WHERE...Ida County.

* WHEN...Until 3 AM CST Saturday.

* 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
029 
WWUS43 KFSD 110328
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
928 PM CST Fri Dec 10 2021

SDZ040-054-055-060-061-065-068-110430-
/O.CAN.KFSD.WS.W.0003.000000T0000Z-211211T0600Z/
Brookings-Miner-Lake-Hanson-McCook-Hutchinson-Bon Homme-
928 PM CST Fri Dec 10 2021

...WINTER STORM WARNING IS CANCELLED...

Accumulating snow has come to an end. Winds will gradually weaken
through the night.

$$

SDZ069-110600-
/O.CON.KFSD.WS.W.0003.000000T0000Z-211211T0600Z/
Yankton-
928 PM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Heavy snow. Additional snow accumulations of up to one 
  inch.

* WHERE...Yankton County.

* WHEN...Until midnight CST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

IAZ001-012-020-MNZ072-080-089-097-098-NEZ013-SDZ056-062-066-067-
070-071-110600-
/O.CON.KFSD.WS.W.0003.000000T0000Z-211211T0600Z/
Lyon-Sioux-Plymouth-Murray-Nobles-Pipestone-Rock-Dixon-Moody-
Minnehaha-Turner-Lincoln-Clay-Union-
928 PM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Heavy snow. Additional snow accumulations of up to two 
  inches. Winds gusting as high as 35 mph.

* WHERE...Portions of east central and southeast South Dakota, 
  northeast Nebraska, northwest Iowa and southwest Minnesota. 
  This includes the tribal lands of the Flandreau Santee Sioux 
  Tribal Nation.

* WHEN...Until midnight CST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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-MNZ081-090-110900-
/O.CON.KFSD.WS.W.0003.000000T0000Z-211211T0900Z/
Osceola-Dickinson-O'Brien-Clay-Cherokee-Buena Vista-Cottonwood-
Jackson-
928 PM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM CST
SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of up to two 
  inches. Winds gusting as high as 40 mph.

* WHERE...Portions of northwest Iowa and southwest Minnesota.

* WHEN...Until 3 AM CST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

MNZ071-110600-
/O.CON.KFSD.WS.W.0003.000000T0000Z-211211T0600Z/
Lincoln-
928 PM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Snow. Additional snow accumulations of up to one inch.

* WHERE...Lincoln County.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

&&

$$

IAZ031-NEZ014-110600-
/O.CON.KFSD.WW.Y.0013.000000T0000Z-211211T0600Z/
Woodbury-Dakota-
928 PM CST Fri Dec 10 2021

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

* WHAT...Snow. Additional snow accumulations of up to two inches.
  Winds gusting as high as 35 mph.

* WHERE...In Nebraska, Dakota County. In Iowa, Woodbury County.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. Areas of 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.

&&

$$

IAZ032-110900-
/O.CON.KFSD.WW.Y.0013.000000T0000Z-211211T0900Z/
Ida-
928 PM CST Fri Dec 10 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST
SATURDAY...

* WHAT...Snow. Additional snow accumulations of up to two inches.
  Winds gusting as high as 35 mph.

* WHERE...Ida County.

* WHEN...Until 3 AM CST Saturday.

* 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
849 
WWUS43 KFSD 110903
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
303 AM CST Sat Dec 11 2021

IAZ002-003-013-014-021-022-MNZ081-090-111015-
/O.EXP.KFSD.WS.W.0003.000000T0000Z-211211T0900Z/
Osceola-Dickinson-O'Brien-Clay-Cherokee-Buena Vista-Cottonwood-
Jackson-
303 AM CST Sat Dec 11 2021

...WINTER STORM WARNING HAS EXPIRED...

Snow is ending across the area.

$$

IAZ032-111015-
/O.EXP.KFSD.WW.Y.0013.000000T0000Z-211211T0900Z/
Ida-
303 AM CST Sat Dec 11 2021

...WINTER WEATHER ADVISORY HAS EXPIRED...

Snow is ending across the area.

$$

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
Dec 9, 11:23 AM CSTWinter Weather AdvisoryFSDAurora, Beadle, Brookings, Brule, Jerauld, Kingsbury and 2 more40 hr

Nearby

Winter Storm Warnings in South Dakota, 2021Winter Storm Warnings in Iowa, 2021Winter Storm Warnings in Minnesota, 2021Every winter storm 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.