Alert archive / South Dakota / Severe Thunderstorm Warnings / 2021
Severe Thunderstorm Warnings in South Dakota, August 2021
205 severe thunderstorm warnings in August 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 severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in August 2021. Tap one for its archive.
- Severe Thunderstorm Warnings
- 205
- Busiest day
- August 28, 202133 severe thunderstorm warnings
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 |
|---|---|---|---|---|
| Aug 5, 3:30 PM CDT | Severe Thunderstorm Warning | ABR | Deuel | 45 min |
| Aug 5, 7:00 PM CDT | Severe Thunderstorm Warning | FSD | Lake, Moody | 45 min |
| Aug 5, 7:28 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Moody | 32 min |
| Aug 5, 7:44 PM CDT | Severe Thunderstorm Warning | FSD | Moody | 33 min |
| Aug 5, 7:58 PM CDT | Severe Thunderstorm Warning | FSD | Lake, Minnehaha, Moody | 47 min |
| Aug 5, 8:24 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha, Moody | 51 min |
| Aug 5, 8:57 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha | 48 min |
| Aug 5, 9:04 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 28 min |
| Aug 5, 10:04 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, McCook, Minnehaha, Turner | 41 min |
| Aug 5, 10:36 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Lincoln, Turner, Union | 39 min |
| Aug 5, 11:40 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 50 min |
| Aug 6, 12:10 AM CDT | Severe Thunderstorm Warning | FSD | Union | 35 min |
| Aug 6, 1:06 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 39 min |
| Aug 6, 1:36 AM CDT | Severe Thunderstorm Warning | FSD | Union | 24 min |
| Aug 6, 3:24 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade, Pennington | 36 min |
| Aug 6, 5:36 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 33 min |
| Aug 6, 5:53 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 67 min |
| Aug 6, 6:53 PM CDT | Severe Thunderstorm Warning | UNR | Fall River, Oglala Lakota | 67 min |
| Aug 6, 7:53 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Oglala Lakota | 67 min |
| Aug 6, 8:06 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Meade, Oglala Lakota, Pennington | 54 min |
| Aug 6, 8:56 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Mellette, Todd | 64 min |
| Aug 6, 9:30 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 75 min |
| Aug 6, 10:42 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 34 min |
| Aug 6, 11:07 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Lyman | 38 min |
| Aug 6, 11:10 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 35 min |
| Aug 6, 11:29 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hand, Hyde, Lyman | 46 min |
| Aug 7, 12:10 AM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand, Hyde, Spink | 50 min |
| Aug 7, 6:39 PM CDT | Severe Thunderstorm Warning | ABR | Brown, McPherson | 51 min |
| Aug 7, 7:05 PM CDT | Severe Thunderstorm Warning | ABR | Brown, McPherson | 40 min |
| Aug 7, 7:26 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 49 min |
| Aug 7, 11:01 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Spink | 44 min |
| Aug 7, 11:25 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Clark, Day, Spink | 50 min |
| Aug 8, 12:56 AM CDT | Severe Thunderstorm Warning | ABR | Clark | 49 min |
| Aug 14, 1:45 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 45 min |
| Aug 14, 2:28 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 47 min |
| Aug 14, 2:57 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 48 min |
| Aug 14, 3:06 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 23 min |
| Aug 14, 3:37 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 53 min |
| Aug 14, 3:44 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 41 min |
| Aug 14, 4:05 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 40 min |
| Aug 14, 4:24 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 66 min |
| Aug 14, 4:30 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 60 min |
| Aug 14, 5:04 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 56 min |
| Aug 14, 5:40 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Pennington | 31 min |
| Aug 14, 6:34 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 41 min |
| Aug 14, 6:47 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Walworth | 43 min |
| Aug 14, 6:56 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 34 min |
| Aug 14, 7:12 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 33 min |
| Aug 14, 7:29 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter | 46 min |
| Aug 14, 8:15 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter | 60 min |
| Aug 14, 8:48 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Stanley, Sully | 42 min |
| Aug 19, 6:26 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins, Ziebach | 79 min |
| Aug 19, 8:26 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 34 min |
| Aug 22, 4:19 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Faulk, Potter | 41 min |
| Aug 22, 4:33 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, McPherson | 42 min |
| Aug 22, 5:03 PM CDT | Severe Thunderstorm Warning | ABR | McPherson | 13 min |
| Aug 22, 5:15 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 45 min |
| Aug 22, 5:21 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds | 39 min |
| Aug 22, 5:25 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo | 37 min |
| Aug 22, 5:40 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 50 min |
| Aug 22, 5:48 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule, Jerauld | 42 min |
| Aug 22, 6:11 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 49 min |
| Aug 22, 6:14 PM CDT | Severe Thunderstorm Warning | ABR | Day, Marshall | 46 min |
| Aug 22, 6:23 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Jerauld | 40 min |
| Aug 22, 6:27 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Spink | 48 min |
| Aug 22, 6:57 PM CDT | Severe Thunderstorm Warning | ABR | Day, Marshall, Roberts | 24 min |
| Aug 22, 7:15 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson, Miner, Sanborn | 30 min |
| Aug 22, 7:17 PM CDT | Severe Thunderstorm Warning | ABR | Day | 43 min |
| Aug 22, 7:21 PM CDT | Severe Thunderstorm Warning | FSD | Aurora | 24 min |
| Aug 22, 7:31 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Sanborn | 44 min |
| Aug 22, 8:06 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson, Miner, Sanborn | 39 min |
| Aug 22, 8:32 PM CDT | Severe Thunderstorm Warning | FSD | Hanson, McCook | 43 min |
| Aug 23, 3:45 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Mellette | 24 min |
| Aug 23, 4:13 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 27 min |
| Aug 23, 5:01 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 59 min |
| Aug 23, 5:07 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 38 min |
| Aug 23, 5:21 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 29 min |
| Aug 23, 5:55 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 65 min |
| Aug 23, 6:15 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 60 min |
| Aug 23, 6:17 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding, Perkins | 58 min |
| Aug 23, 6:42 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 33 min |
| Aug 23, 7:12 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 48 min |
| Aug 23, 8:42 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 48 min |
| Aug 23, 9:13 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 47 min |
| Aug 23, 10:01 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Dewey, Walworth | 59 min |
| Aug 23, 10:17 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Walworth | 43 min |
| Aug 23, 10:56 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Walworth | 64 min |
| Aug 23, 11:51 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Potter | 54 min |
| Aug 24, 12:01 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, McPherson | 59 min |
| Aug 24, 12:56 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Marshall | 64 min |
| Aug 24, 1:05 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, Faulk, Hand, Spink | 55 min |
| Aug 25, 3:39 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix | 36 min |
| Aug 26, 1:35 AM CDT | Severe Thunderstorm Warning | UNR | Harding | 55 min |
| Aug 26, 3:18 AM CDT | Severe Thunderstorm Warning | UNR | Perkins | 42 min |
| Aug 26, 3:47 AM CDT | Severe Thunderstorm Warning | ABR | Corson | 58 min |
| Aug 26, 4:44 AM CDT | Severe Thunderstorm Warning | ABR | Corson | 46 min |
| Aug 26, 4:58 AM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Yankton | 27 min |
| Aug 26, 7:47 AM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand | 43 min |
| Aug 26, 8:01 AM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand, Hyde | 44 min |
| Aug 26, 8:11 AM CDT | Severe Thunderstorm Warning | ABR | Faulk, Spink | 49 min |
| Aug 26, 8:18 AM CDT | Severe Thunderstorm Warning | ABR | Day, Marshall, Roberts | 57 min |
| Aug 26, 8:24 AM CDT | Severe Thunderstorm Warning | ABR | Hand, Spink | 36 min |
| Aug 26, 8:45 AM CDT | Severe Thunderstorm Warning | ABR | Clark, Spink | 45 min |
| Aug 26, 9:14 AM CDT | Severe Thunderstorm Warning | ABR | Roberts | 46 min |
| Aug 26, 9:18 AM CDT | Severe Thunderstorm Warning | FSD | Beadle, Kingsbury | 57 min |
| Aug 26, 9:22 AM CDT | Severe Thunderstorm Warning | ABR | Clark, Hamlin, Spink | 38 min |
| Aug 26, 9:26 AM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington, Hamlin | 49 min |
| Aug 26, 9:57 AM CDT | Severe Thunderstorm Warning | ABR | Grant, Roberts | 33 min |
| Aug 26, 9:58 AM CDT | Severe Thunderstorm Warning | ABR | Deuel, Hamlin | 62 min |
| Aug 26, 10:00 AM CDT | Severe Thunderstorm Warning | ABR | Codington, Deuel, Grant, Hamlin | 60 min |
| Aug 26, 10:01 AM CDT | Severe Thunderstorm Warning | FSD | Brookings, Kingsbury, Lake, Miner, Moody | 59 min |
| Aug 26, 10:39 AM CDT | Severe Thunderstorm Warning | FSD | Brookings | 66 min |
| Aug 26, 2:37 PM CDT | Severe Thunderstorm Warning | ABR | Roberts | 23 min |
| Aug 26, 6:21 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade, Pennington | 54 min |
| Aug 26, 6:59 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 61 min |
| Aug 26, 7:54 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 66 min |
| Aug 26, 8:48 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 57 min |
| Aug 26, 9:38 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 52 min |
| Aug 26, 11:05 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, Turner, Yankton | 25 min |
| Aug 26, 11:31 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Ziebach | 59 min |
| Aug 27, 12:05 AM CDT | Severe Thunderstorm Warning | ABR | Stanley | 55 min |
| Aug 27, 12:08 AM CDT | Severe Thunderstorm Warning | FSD | Clay, Lincoln, Turner, Union | 37 min |
| Aug 27, 12:17 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 28 min |
| Aug 27, 12:34 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Union | 41 min |
| Aug 27, 1:06 AM CDT | Severe Thunderstorm Warning | ABR | Hughes, Stanley, Sully | 39 min |
| Aug 27, 1:44 AM CDT | Severe Thunderstorm Warning | ABR | Hughes, Hyde, Potter, Sully | 46 min |
| Aug 27, 5:27 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 78 min |
| Aug 27, 6:39 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Meade, Perkins | 96 min |
| Aug 27, 8:14 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins, Ziebach | 46 min |
| Aug 28, 1:14 AM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Dewey, Walworth | 31 min |
| Aug 28, 1:44 AM CDT | Severe Thunderstorm Warning | ABR | Campbell, Edmunds, McPherson, Walworth | 46 min |
| Aug 28, 2:05 AM CDT | Severe Thunderstorm Warning | ABR | Dewey, Walworth | 40 min |
| Aug 28, 2:39 AM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Walworth | 66 min |
| Aug 28, 3:19 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, McPherson | 26 min |
| Aug 28, 3:42 AM CDT | Severe Thunderstorm Warning | ABR | Edmunds | 47 min |
| Aug 28, 4:12 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Spink | 63 min |
| Aug 28, 4:51 AM CDT | Severe Thunderstorm Warning | ABR | Dewey | 39 min |
| Aug 28, 5:10 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Clark, Codington, Day, Spink | 65 min |
| Aug 28, 6:08 AM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Potter, Walworth | 37 min |
| Aug 28, 6:15 AM CDT | Severe Thunderstorm Warning | ABR | Codington, Day, Grant | 60 min |
| Aug 28, 6:55 AM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Faulk | 35 min |
| Aug 28, 7:01 AM CDT | Severe Thunderstorm Warning | ABR | Grant | 44 min |
| Aug 28, 7:09 AM CDT | Severe Thunderstorm Warning | ABR | Brown | 16 min |
| Aug 28, 7:24 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds | 36 min |
| Aug 28, 7:43 AM CDT | Severe Thunderstorm Warning | ABR | Grant, Roberts | 30 min |
| Aug 28, 8:26 AM CDT | Severe Thunderstorm Warning | ABR | Day, Grant, Roberts | 30 min |
| Aug 28, 8:42 AM CDT | Severe Thunderstorm Warning | ABR | Codington, Grant, Roberts | 33 min |
| Aug 28, 9:14 AM CDT | Severe Thunderstorm Warning | ABR | Grant, Roberts | 31 min |
| Aug 28, 9:31 AM CDT | Severe Thunderstorm Warning | ABR | Grant, Roberts | 44 min |
| Aug 28, 3:21 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Miner, Minnehaha, Moody | 24 min |
| Aug 28, 3:56 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Turner, Yankton | 49 min |
| Aug 28, 4:23 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Turner | 37 min |
| Aug 28, 4:33 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha | 42 min |
| Aug 28, 5:00 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha | 45 min |
| Aug 28, 6:14 PM CDT | Severe Thunderstorm Warning | FSD | Hanson, Lake, McCook | 31 min |
| Aug 28, 6:15 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha, Moody | 45 min |
| Aug 28, 6:17 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, McCook, Turner | 43 min |
| Aug 28, 6:44 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson, Lake, McCook, Miner, Sanborn | 46 min |
| Aug 28, 6:44 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha | 46 min |
| Aug 28, 6:48 PM CDT | Severe Thunderstorm Warning | FSD | Hanson, Lake, McCook, Minnehaha | 42 min |
| Aug 28, 6:53 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha | 52 min |
| Aug 28, 7:23 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 52 min |
| Aug 28, 7:25 PM CDT | Severe Thunderstorm Warning | FSD | Hanson, Lake, McCook, Miner, Minnehaha, Moody | 50 min |
| Aug 28, 7:27 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Hutchinson, Turner, Yankton | 48 min |
| Aug 28, 7:48 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Minnehaha, Moody, Turner | 31 min |
| Aug 28, 7:50 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Clay, Hutchinson, Lincoln, Turner, Yankton | 40 min |
| Aug 28, 8:52 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha | 23 min |
| Aug 28, 9:13 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 47 min |
| Aug 30, 3:59 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade, Pennington | 61 min |
| Aug 30, 4:19 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson, Hutchinson | 56 min |
| Aug 30, 4:34 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 56 min |
| Aug 30, 4:54 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 51 min |
| Aug 30, 5:09 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 66 min |
| Aug 30, 5:25 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, Turner | 35 min |
| Aug 30, 5:29 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 61 min |
| Aug 30, 5:30 PM CDT | Severe Thunderstorm Warning | FSD | Hanson, Hutchinson, McCook | 30 min |
| Aug 30, 5:44 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 46 min |
| Aug 30, 5:58 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 62 min |
| Aug 30, 5:59 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, Turner, Yankton | 23 min |
| Aug 30, 6:06 PM CDT | Severe Thunderstorm Warning | UNR | Perkins, Ziebach | 54 min |
| Aug 30, 6:45 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins, Ziebach | 60 min |
| Aug 30, 6:50 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River, Oglala Lakota | 36 min |
| Aug 30, 6:53 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 67 min |
| Aug 30, 7:29 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Union | 46 min |
| Aug 30, 7:42 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins, Ziebach | 63 min |
| Aug 30, 7:56 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 64 min |
| Aug 30, 7:57 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, McCook, Minnehaha, Turner | 48 min |
| Aug 30, 8:41 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Meade, Ziebach | 64 min |
| Aug 30, 9:30 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 60 min |
| Aug 30, 9:40 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 40 min |
| Aug 30, 9:46 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 59 min |
| Aug 30, 10:08 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins | 35 min |
| Aug 30, 10:26 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Pennington | 64 min |
| Aug 30, 11:10 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 25 min |
| Aug 30, 11:14 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Lyman | 20 min |
| Aug 30, 11:19 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld, Sanborn | 41 min |
| Aug 31, 12:05 AM CDT | Severe Thunderstorm Warning | FSD | Aurora, Davison, Douglas | 40 min |
| Aug 31, 12:15 AM CDT | Severe Thunderstorm Warning | FSD | Hanson, Hutchinson | 45 min |
| Aug 31, 12:29 AM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Mellette, Todd | 61 min |
| Aug 31, 12:33 AM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman | 42 min |
| Aug 31, 1:02 AM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 58 min |
| Aug 31, 1:19 AM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 56 min |
| Aug 31, 1:26 AM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix, Gregory | 49 min |
| Aug 31, 1:57 AM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 63 min |
| Aug 31, 2:14 AM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix | 31 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Minnehaha County17
- Lincoln County17
- Meade County17
- Pennington County17
- Brown County17
- Turner County13
- Perkins County13
- Dewey County12
- Edmunds County12
- McCook County11
- Mellette County11
- Spink County11
- Ziebach County11
- Moody County10
- Roberts County10
- Hanson County10
- Hutchinson County10
- Lake County9
- Day County9
- Custer County9
- Walworth County9
- Corson County9
- Grant County9
- Faulk County8
- Potter County8
- Fall River County7
- Haakon County7
- Todd County7
- McPherson County7
- Union County6
- Jackson County6
- Hand County6
- Clark County6
- Davison County6
- Miner County6
- Bon Homme County6
- Yankton County6
- Tripp County5
- Sanborn County5
- Codington County5
26 more counties
- Clay County4
- Butte County4
- Harding County4
- Oglala Lakota County4
- Lyman County4
- Hyde County4
- Aurora County4
- Marshall County4
- Jones County4
- Hamlin County4
- Deuel County3
- Brookings County3
- Lawrence County3
- Bennett County3
- Buffalo County3
- Brule County3
- Stanley County3
- Sully County3
- Jerauld County3
- Campbell County3
- Charles Mix County3
- Hughes County3
- Beadle County2
- Kingsbury County2
- Douglas County1
- Gregory 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. Warning verification from the Mesonet's Cow. Rebuilt daily.