Alert archive / South Dakota / Winter Storm Warnings
Winter Storm Warnings in South Dakota, 2021
15 winter storm warnings in 2021. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of winter storm warnings reaches back to 2005.
Winter Storm Warnings by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Winter Storm Warnings
- 15
- Busiest month
- March5 winter storm warnings
- Busiest day
- March 14, 20212 winter storm warnings
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 17, 2:39 AM CST | Winter Storm Warning | UNR | Lawrence, Meade, Pennington | 39 hr |
| Feb 27, 7:02 AM CST | Winter Storm Warning | UNR | Haakon, Jackson, Lawrence, Meade, Pennington | 23 hr |
| Mar 9, 3:08 AM CST | Winter Storm Warning | UNR | Bennett, Custer, Fall River, Jackson, Oglala Lakota, Pennington | 39 hr |
| Mar 10, 2:29 AM CST | Winter Storm Warning | ABR | Clark, Codington, Day, Deuel, Grant, Hamlin and 2 more | 21 hr |
| Mar 12, 2:44 PM CST | Winter Storm Warning | UNR | Bennett, Custer, Fall River, Haakon, Jackson, Lawrence and 6 more | 66 hr |
| Mar 14, 4:03 AM CDT | Winter Storm Warning | FSD | Aurora, Brookings, Brule, Charles Mix, Douglas, Gregory and 6 more | 32 hr |
| Mar 14, 5:55 PM CDT | Winter Storm Warning | ABR | Buffalo, Deuel, Hamlin, Hand, Hughes, Hyde and 3 more | 16 hr |
| Apr 5, 2:58 PM CDT | Winter Storm Warning | UNR | Custer, Fall River, Lawrence, Meade, Pennington | 36 hr |
| Apr 8, 4:22 AM CDT | Winter Storm Warning | UNR | Lawrence, Meade, Pennington | 29 hr |
| Apr 18, 3:32 AM CDT | Winter Storm Warning | UNR | Custer, Lawrence, Meade, Pennington | 33 hr |
| Oct 11, 4:07 PM CDT | Winter Storm Warning | UNR | Butte, Custer, Harding, Lawrence, Meade, Pennington | 51 hr |
| Dec 9, 3:10 AM CST | Winter Storm Warning | UNR | Bennett, Custer, Fall River, Jackson, Mellette, Oglala Lakota and 3 more | 39 hr |
| Dec 9, 11:23 AM CST | Winter Storm Warning | FSD | Aurora, Bon Homme, Brookings, Brule, Charles Mix, Clay and 16 more | 40 hr |
| Dec 10, 2:11 AM CST | Winter Storm Warning | ABR | Buffalo, Jones, Lyman | 16 hr |
| Dec 17, 6:29 PM CST | Winter Storm Warning | ABR | Brown, Day, Marshall, Roberts | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pennington County9
- Lawrence County7
- Meade County7
- Custer County6
- Jackson County4
- Fall River County4
- Bennett County3
- Oglala Lakota County3
- Haakon County2
- Day County2
- Deuel County2
- Hamlin County2
- Marshall County2
- Roberts County2
- Mellette County2
- Todd County2
- Tripp County2
- Aurora County2
- Brookings County2
- Brule County2
- Charles Mix County2
- Douglas County2
- Gregory County2
- Jerauld County2
- Lake County2
- Lincoln County2
- Minnehaha County2
- Moody County2
- Buffalo County2
- Jones County2
- Lyman County2
- Clark County1
- Codington County1
- Grant County1
- Kingsbury County1
- Hand County1
- Hughes County1
- Hyde County1
- Stanley County1
- Butte County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.