Alert archive / South Dakota / 2021
Weather alerts in South Dakota, April 2021
55 weather alerts in April 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in April 2021. Tap one for its archive.
- Alerts
- 55
- Warnings
- 29
- Watches
- 7
- Advisories
- 10
- Busiest day
- April 6, 202113 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Apr 1, 3:16 PM CDT | Red Flag Warning | UNR | Bennett, Butte, Fall River, Haakon, Jackson, Meade and 4 more | 29 hr |
| Apr 2, 2:54 AM CDT | Red Flag Warning | ABR | Campbell, Codington, Corson, Deuel, Dewey, Grant and 4 more | 17 hr |
| Apr 2, 10:49 AM CDT | Red Flag Warning | FSD | Bon Homme, Brookings, Clay, Hutchinson, Lake, Lincoln and 6 more | 9 hr |
| Apr 3, 3:15 AM CDT | Red Flag Warning | ABR | Brown, Buffalo, Campbell, Corson, Dewey, Edmunds and 13 more | 17 hr |
| Apr 3, 3:34 AM CDT | Red Flag Warning | UNR | Bennett, Fall River, Haakon, Jackson, Meade, Mellette and 6 more | 16 hr |
| Apr 3, 4:09 AM CDT | Red Flag Warning | FSD | Aurora, Beadle, Brule, Gregory, Jerauld | 17 hr |
| Apr 4, 3:54 AM CDT | Red Flag Warning | ABR | Campbell, Corson, Dewey, Edmunds, McPherson, Walworth | 15 hr |
| Apr 4, 3:06 PM CDT | Winter Storm Watch | UNR | Custer, Lawrence, Meade, Pennington | 24 hr |
| Apr 5, 3:32 AM CDT | Red Flag Warning | ABR | Brown, Buffalo, Campbell, Corson, Dewey, Edmunds and 12 more | 16 hr |
| Apr 5, 4:13 AM CDT | Red Flag Warning | UNR | Bennett, Custer, Fall River, Haakon, Jackson, Meade and 7 more | 16 hr |
| Apr 5, 2:58 PM CDT | Winter Storm Warning | UNR | Custer, Fall River, Lawrence, Meade, Pennington | 36 hr |
| Apr 5, 6:21 PM CDT | Mesoscale Discussion | SPC | Bon Homme, Clay, Hutchinson, Lincoln, McCook, Minnehaha and 4 more | 114 min |
| Apr 5, 7:03 PM CDT | Severe Thunderstorm Warning | FSD | McCook, Minnehaha | 27 min |
| Apr 5, 7:39 PM CDT | Severe Thunderstorm Warning | FSD | Moody | 36 min |
| Apr 5, 7:49 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, Turner | 26 min |
| Apr 5, 8:44 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 31 min |
| Apr 5, 9:04 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha, Turner | 26 min |
| Apr 5, 9:27 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha | 33 min |
| Apr 5, 9:48 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 27 min |
| Apr 6, 3:41 AM CDT | Winter Weather Advisory | UNR | Bennett, Custer, Fall River, Meade, Oglala Lakota, Pennington | 27 hr |
| Apr 6, 7:29 AM CDT | Special Weather Statement | UNR | Bennett | 46 min |
| Apr 6, 7:47 AM CDT | Special Weather Statement | UNR | Mellette | 43 min |
| Apr 6, 8:16 AM CDT | Special Weather Statement | UNR | Jackson | 29 min |
| Apr 6, 8:19 AM CDT | Special Weather Statement | UNR | Mellette | 41 min |
| Apr 6, 9:39 AM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 10 min |
| Apr 7, 2:29 PM CDT | Winter Storm Watch | UNR | Lawrence, Meade, Pennington | 14 hr |
| Apr 8, 4:22 AM CDT | Winter Storm Warning | UNR | Lawrence, Meade, Pennington | 29 hr |
| Apr 8, 4:22 AM CDT | Winter Weather Advisory | UNR | Lawrence | 29 hr |
| Apr 8, 3:17 PM CDT | Wind Advisory | ABR | Brown, Campbell, Corson, Dewey, Edmunds, Faulk and 8 more | 27 hr |
| Apr 8, 3:31 PM CDT | Wind Advisory | UNR | Butte, Custer, Haakon, Harding, Jackson, Meade and 3 more | 25 hr |
| Apr 9, 2:43 AM CDT | High Wind Warning | UNR | Meade, Pennington | 12 hr |
| Apr 9, 3:48 AM CDT | Red Flag Warning | ABR | Corson, Dewey | 17 hr |
| Apr 9, 4:21 AM CDT | Red Flag Warning | UNR | Perkins, Ziebach | 16 hr |
| Apr 10, 3:37 AM CDT | High Wind Watch | UNR | Meade, Pennington | 12 hr |
| Apr 10, 2:43 PM CDT | Wind Advisory | ABR | Buffalo, Campbell, Corson, Dewey, Edmunds, Faulk and 10 more | 52 hr |
| Apr 10, 3:27 PM CDT | High Wind Warning | UNR | Butte, Harding, Lawrence, Meade, Pennington, Perkins | 16 hr |
| Apr 10, 3:27 PM CDT | Wind Advisory | UNR | Bennett, Butte, Custer, Haakon, Harding, Jackson and 9 more | 3 days |
| Apr 12, 9:37 AM CDT | Wind Advisory | FSD | Aurora, Beadle, Bon Homme, Brule, Charles Mix, Davison and 7 more | 9 hr |
| Apr 14, 3:55 AM CDT | Winter Weather Advisory | UNR | Bennett, Custer, Fall River, Lawrence, Meade, Oglala Lakota and 1 more | 48 hr |
| Apr 17, 3:26 AM CDT | Winter Storm Watch | UNR | Custer, Lawrence, Meade, Pennington | 24 hr |
| Apr 18, 3:32 AM CDT | Winter Storm Warning | UNR | Custer, Lawrence, Meade, Pennington | 33 hr |
| Apr 18, 3:32 AM CDT | Winter Weather Advisory | UNR | Bennett, Butte, Custer, Fall River, Jackson, Lawrence and 4 more | 54 hr |
| Apr 22, 11:30 AM CDT | Red Flag Warning | ABR | Brown, Codington, Day, Grant, Marshall, Roberts | 7 hr |
| Apr 24, 3:10 AM CDT | Winter Weather Advisory | ABR | Codington, Day, Deuel, Grant, Hamlin, Marshall and 1 more | 28 hr |
| Apr 25, 3:02 PM CDT | Fire Weather Watch | UNR | Custer, Fall River, Oglala Lakota | 13 hr |
| Apr 26, 4:30 AM CDT | Red Flag Warning | UNR | Custer, Fall River | 10 hr |
| Apr 26, 11:06 AM CDT | Special Weather Statement | ABR | Day, Roberts | 54 min |
| Apr 26, 11:12 AM CDT | Special Weather Statement | ABR | Day | 48 min |
| Apr 26, 4:23 PM CDT | Special Weather Statement | UNR | Custer | 22 min |
| Apr 26, 4:47 PM CDT | Special Weather Statement | UNR | Custer | 43 min |
| Apr 26, 8:29 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 27 min |
| Apr 29, 2:17 AM CDT | Fire Weather Watch | ABR | Campbell, Corson, Dewey, Walworth | 13 hr |
| Apr 29, 3:23 AM CDT | Fire Weather Watch | UNR | Butte, Meade, Pennington, Perkins, Ziebach | 24 hr |
| Apr 29, 3:23 PM CDT | Red Flag Warning | UNR | Butte, Meade, Pennington, Perkins, Ziebach | 30 hr |
| Apr 29, 3:31 PM CDT | Red Flag Warning | ABR | Campbell, Corson, Dewey, Walworth | 29 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 9 |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 8 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 5 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 1 |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 15 |
| Fire Weather Watch | 3 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Meade County19
- Pennington County19
- Custer County15
- Lawrence County11
- Fall River County9
- Perkins County9
- Corson County9
- Dewey County9
- Bennett County8
- Oglala Lakota County8
- Ziebach County8
- Campbell County8
- Walworth County8
- Butte County7
- Jackson County7
- Minnehaha County7
- McPherson County6
- Haakon County5
- Edmunds County5
- Mellette County5
- Roberts County4
- Hutchinson County4
- Lincoln County4
- Turner County4
- Brown County4
- Faulk County4
- Hughes County4
- Hyde County4
- Jones County4
- Potter County4
- Stanley County4
- Sully County4
- Todd County4
- Day County4
- Codington County3
- Grant County3
- Bon Homme County3
- McCook County3
- Moody County3
- Yankton County3
23 more counties
- Buffalo County3
- Hand County3
- Lyman County3
- Marshall County3
- Tripp County3
- Gregory County3
- Harding County3
- Deuel County2
- Hamlin County2
- Clay County2
- Union County2
- Spink County2
- Aurora County2
- Beadle County2
- Brule County2
- Jerauld County2
- Charles Mix County2
- Brookings County1
- Lake County1
- Davison County1
- Douglas County1
- Hanson County1
- Sanborn County1
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.