Alert archive / South Dakota / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in South Dakota, 1998
529 severe thunderstorm warnings in 1998. 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 1998. Tap one for its archive.
- Severe Thunderstorm Warnings
- 529
- Busiest month
- August147 severe thunderstorm warnings
- Busiest day
- July 6, 199840 severe thunderstorm 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 |
|---|---|---|---|---|
| Feb 25, 6:05 PM CST | Severe Thunderstorm Warning | ABR | Clark, Day | 30 min |
| Mar 29, 1:13 AM CST | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 32 min |
| Mar 29, 3:37 AM CST | Severe Thunderstorm Warning | FSD | Lake | 23 min |
| Mar 29, 4:10 AM CST | Severe Thunderstorm Warning | FSD | Moody | 30 min |
| Mar 29, 1:48 PM CST | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha, Turner | 47 min |
| Apr 12, 5:13 PM CDT | Severe Thunderstorm Warning | FSD | Union | 32 min |
| Apr 12, 7:00 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 45 min |
| Apr 12, 7:17 PM CDT | Severe Thunderstorm Warning | ABR | Deuel | 33 min |
| Apr 19, 2:42 PM CDT | Severe Thunderstorm Warning | FSD | Turner | 33 min |
| Apr 19, 3:57 PM CDT | Severe Thunderstorm Warning | FSD | McCook, Minnehaha | 33 min |
| Apr 19, 4:30 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 35 min |
| May 11, 7:39 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme | 31 min |
| May 13, 7:30 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 45 min |
| May 13, 8:08 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 47 min |
| May 14, 6:45 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 35 min |
| May 14, 7:21 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 34 min |
| May 14, 7:59 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 31 min |
| May 14, 8:08 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule | 32 min |
| May 14, 8:20 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 25 min |
| May 14, 8:20 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 15 min |
| May 14, 8:40 PM CDT | Severe Thunderstorm Warning | FSD | Aurora | 35 min |
| May 14, 8:47 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 18 min |
| May 14, 8:50 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 50 min |
| May 14, 9:41 PM CDT | Severe Thunderstorm Warning | ABR | Codington, Day | 29 min |
| May 14, 9:58 PM CDT | Severe Thunderstorm Warning | ABR | Grant, Roberts | 47 min |
| May 14, 10:08 PM CDT | Severe Thunderstorm Warning | FSD | Kingsbury | 32 min |
| May 14, 10:09 PM CDT | Severe Thunderstorm Warning | ABR | Day | 46 min |
| May 14, 10:41 PM CDT | Severe Thunderstorm Warning | FSD | Kingsbury | 34 min |
| May 14, 11:06 PM CDT | Severe Thunderstorm Warning | ABR | Hamlin | 49 min |
| May 14, 11:26 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 34 min |
| May 15, 2:17 AM CDT | Severe Thunderstorm Warning | FSD | Beadle | 33 min |
| May 15, 3:40 AM CDT | Severe Thunderstorm Warning | ABR | Codington, Hamlin | 30 min |
| May 15, 4:37 AM CDT | Severe Thunderstorm Warning | ABR | Grant | 33 min |
| May 15, 10:52 AM CDT | Severe Thunderstorm Warning | FSD | Union | 28 min |
| May 15, 11:20 AM CDT | Severe Thunderstorm Warning | FSD | Union | 35 min |
| May 20, 4:46 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 49 min |
| May 20, 5:40 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 35 min |
| May 20, 5:50 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 50 min |
| May 20, 6:23 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 47 min |
| May 20, 6:56 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 49 min |
| May 20, 7:13 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Pennington | 32 min |
| May 20, 7:29 PM CDT | Severe Thunderstorm Warning | UNR | 51 min | |
| May 20, 7:46 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 34 min |
| May 20, 8:44 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 36 min |
| May 20, 10:30 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 30 min |
| May 23, 4:16 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 49 min |
| May 23, 5:15 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 35 min |
| May 25, 3:59 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 46 min |
| May 25, 4:43 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 37 min |
| May 25, 4:43 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 32 min |
| May 25, 5:19 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 31 min |
| May 26, 9:05 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 30 min |
| May 28, 5:28 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha | 32 min |
| May 28, 11:40 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 35 min |
| May 29, 9:06 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 49 min |
| May 29, 9:29 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 46 min |
| May 29, 10:18 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 47 min |
| May 29, 10:30 PM CDT | Severe Thunderstorm Warning | UNR | 65 min | |
| May 30, 1:29 AM CDT | Severe Thunderstorm Warning | UNR | 46 min | |
| May 30, 2:11 AM CDT | Severe Thunderstorm Warning | UNR | 49 min | |
| May 30, 2:24 AM CDT | Severe Thunderstorm Warning | UNR | Bennett, Todd | 46 min |
| May 30, 2:47 AM CDT | Severe Thunderstorm Warning | UNR | Bennett | 33 min |
| May 30, 3:01 AM CDT | Severe Thunderstorm Warning | UNR | 34 min | |
| May 30, 3:23 AM CDT | Severe Thunderstorm Warning | UNR | Bennett | 47 min |
| May 30, 3:24 AM CDT | Severe Thunderstorm Warning | ABR | Marshall | 61 min |
| May 30, 3:43 AM CDT | Severe Thunderstorm Warning | ABR | Roberts | 62 min |
| May 30, 4:04 AM CDT | Severe Thunderstorm Warning | UNR | Todd | 46 min |
| May 30, 6:23 AM CDT | Severe Thunderstorm Warning | UNR | Tripp | 47 min |
| May 30, 8:45 AM CDT | Severe Thunderstorm Warning | FSD | Union | 35 min |
| May 30, 9:36 AM CDT | Severe Thunderstorm Warning | FSD | Union | 34 min |
| May 30, 2:27 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 63 min |
| May 30, 3:19 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 46 min |
| May 30, 3:26 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding, Perkins | 64 min |
| May 30, 4:02 PM CDT | Severe Thunderstorm Warning | UNR | Harding, Meade, Perkins | 58 min |
| May 30, 4:56 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 34 min |
| May 30, 5:00 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 60 min |
| May 30, 5:55 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson | 45 min |
| May 30, 6:08 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 62 min |
| May 30, 6:25 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand | 60 min |
| May 30, 6:45 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 35 min |
| May 30, 7:16 PM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington | 64 min |
| May 30, 7:17 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 48 min |
| May 30, 7:21 PM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington | 59 min |
| May 30, 7:23 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 32 min |
| May 30, 7:40 PM CDT | Severe Thunderstorm Warning | ABR | Hamlin | 65 min |
| May 30, 7:40 PM CDT | Severe Thunderstorm Warning | FSD | Sanborn | 30 min |
| May 30, 7:44 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson | 31 min |
| May 30, 8:16 PM CDT | Severe Thunderstorm Warning | ABR | Deuel | 34 min |
| May 30, 8:24 PM CDT | Severe Thunderstorm Warning | FSD | Miner | 31 min |
| May 30, 9:09 PM CDT | Severe Thunderstorm Warning | FSD | Lake, Moody | 31 min |
| May 30, 9:48 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 32 min |
| May 30, 10:08 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 32 min |
| Jun 10, 2:05 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 45 min |
| Jun 10, 2:07 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 43 min |
| Jun 10, 2:11 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo | 49 min |
| Jun 10, 2:50 PM CDT | Severe Thunderstorm Warning | FSD | Jerauld | 30 min |
| Jun 10, 3:17 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand | 63 min |
| Jun 10, 3:22 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Jerauld | 33 min |
| Jun 10, 3:31 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 49 min |
| Jun 10, 3:52 PM CDT | Severe Thunderstorm Warning | FSD | Sanborn | 48 min |
| Jun 10, 4:31 PM CDT | Severe Thunderstorm Warning | ABR | Spink | 64 min |
| Jun 10, 5:07 PM CDT | Severe Thunderstorm Warning | FSD | Sanborn | 33 min |
| Jun 10, 5:17 PM CDT | Severe Thunderstorm Warning | FSD | Miner | 48 min |
| Jun 10, 5:20 PM CDT | Severe Thunderstorm Warning | FSD | Sanborn | 50 min |
| Jun 10, 5:46 PM CDT | Severe Thunderstorm Warning | FSD | Lake | 49 min |
| Jun 10, 6:05 PM CDT | Severe Thunderstorm Warning | FSD | Miner | 50 min |
| Jun 10, 6:25 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 45 min |
| Jun 10, 7:12 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Spink | 33 min |
| Jun 11, 4:12 PM CDT | Severe Thunderstorm Warning | ABR | Day | 48 min |
| Jun 11, 5:05 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson | 30 min |
| Jun 11, 5:17 PM CDT | Severe Thunderstorm Warning | ABR | Hamlin | 63 min |
| Jun 11, 5:23 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds | 47 min |
| Jun 11, 5:28 PM CDT | Severe Thunderstorm Warning | ABR | Codington, Grant | 32 min |
| Jun 11, 5:35 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson | 35 min |
| Jun 11, 6:51 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 49 min |
| Jun 16, 3:04 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 31 min |
| Jun 16, 3:32 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 33 min |
| Jun 16, 3:54 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 46 min |
| Jun 16, 5:34 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 46 min |
| Jun 16, 6:09 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 46 min |
| Jun 16, 6:45 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 60 min |
| Jun 16, 6:54 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 31 min |
| Jun 16, 7:56 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 59 min |
| Jun 16, 7:59 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 61 min |
| Jun 16, 8:52 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 63 min |
| Jun 17, 7:08 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 47 min |
| Jun 17, 7:58 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 32 min |
| Jun 17, 8:07 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 48 min |
| Jun 17, 8:39 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 51 min |
| Jun 17, 8:40 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 35 min |
| Jun 17, 8:55 PM CDT | Severe Thunderstorm Warning | ABR | Hand, Hyde | 50 min |
| Jun 17, 9:16 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Hutchinson | 34 min |
| Jun 17, 9:43 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 32 min |
| Jun 17, 9:50 PM CDT | Severe Thunderstorm Warning | ABR | Hand, Hyde | 60 min |
| Jun 17, 9:51 PM CDT | Severe Thunderstorm Warning | FSD | Hanson | 29 min |
| Jun 17, 10:14 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 31 min |
| Jun 17, 10:57 PM CDT | Severe Thunderstorm Warning | ABR | Faulk | 58 min |
| Jun 17, 11:31 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds | 49 min |
| Jun 17, 11:42 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 63 min |
| Jun 17, 11:47 PM CDT | Severe Thunderstorm Warning | ABR | Spink | 63 min |
| Jun 18, 12:15 AM CDT | Severe Thunderstorm Warning | UNR | Tripp | 45 min |
| Jun 18, 1:23 AM CDT | Severe Thunderstorm Warning | ABR | Roberts | 62 min |
| Jun 19, 6:06 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 44 min |
| Jun 19, 7:30 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 50 min |
| Jun 19, 8:17 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 43 min |
| Jun 19, 8:54 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 61 min |
| Jun 19, 9:37 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 48 min |
| Jun 23, 2:00 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 35 min |
| Jun 23, 2:41 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 19 min |
| Jun 23, 5:33 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 32 min |
| Jun 23, 5:38 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 32 min |
| Jun 23, 6:05 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Mellette | 50 min |
| Jun 23, 6:20 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 35 min |
| Jun 23, 6:52 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 48 min |
| Jun 23, 6:55 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 50 min |
| Jun 23, 7:21 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 49 min |
| Jun 23, 7:44 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 46 min |
| Jun 23, 8:19 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 61 min |
| Jun 23, 8:34 PM CDT | Severe Thunderstorm Warning | FSD | Clay | 51 min |
| Jun 23, 8:41 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 49 min |
| Jun 23, 9:19 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 36 min |
| Jun 23, 9:22 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 63 min |
| Jun 23, 9:32 PM CDT | Severe Thunderstorm Warning | FSD | Union | 33 min |
| Jun 23, 9:42 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 48 min |
| Jun 24, 12:28 AM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 47 min |
| Jun 24, 6:02 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 33 min |
| Jun 24, 6:50 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 45 min |
| Jun 24, 7:02 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 48 min |
| Jun 24, 7:12 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 33 min |
| Jun 24, 7:20 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 50 min |
| Jun 24, 7:30 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 45 min |
| Jun 24, 7:43 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 47 min |
| Jun 24, 7:50 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix | 35 min |
| Jun 24, 8:16 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Jerauld | 34 min |
| Jun 24, 8:20 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson | 35 min |
| Jun 24, 8:28 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 32 min |
| Jun 24, 8:47 PM CDT | Severe Thunderstorm Warning | FSD | McCook | 33 min |
| Jun 24, 8:51 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 34 min |
| Jun 24, 8:54 PM CDT | Severe Thunderstorm Warning | ABR | McPherson | 26 min |
| Jun 24, 8:54 PM CDT | Severe Thunderstorm Warning | FSD | Sanborn | 31 min |
| Jun 24, 9:16 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 34 min |
| Jun 24, 9:30 PM CDT | Severe Thunderstorm Warning | FSD | Kingsbury | 45 min |
| Jun 24, 9:35 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 35 min |
| Jun 24, 9:38 PM CDT | Severe Thunderstorm Warning | FSD | Moody | 32 min |
| Jun 24, 9:44 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 31 min |
| Jun 24, 9:50 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 35 min |
| Jun 24, 9:53 PM CDT | Severe Thunderstorm Warning | ABR | Stanley | 32 min |
| Jun 24, 10:10 PM CDT | Severe Thunderstorm Warning | ABR | McPherson | 45 min |
| Jun 24, 10:15 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 45 min |
| Jun 24, 10:19 PM CDT | Severe Thunderstorm Warning | ABR | Hamlin | 46 min |
| Jun 24, 10:25 PM CDT | Severe Thunderstorm Warning | ABR | Deuel | 50 min |
| Jun 24, 10:30 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 65 min |
| Jun 24, 10:55 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 50 min |
| Jun 24, 11:03 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds | 32 min |
| Jun 24, 11:23 PM CDT | Severe Thunderstorm Warning | ABR | Faulk | 27 min |
| Jun 26, 10:37 AM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 33 min |
| Jun 26, 11:55 AM CDT | Severe Thunderstorm Warning | ABR | Campbell | 50 min |
| Jun 26, 12:04 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Walworth | 61 min |
| Jun 26, 12:41 PM CDT | Severe Thunderstorm Warning | ABR | Campbell | 49 min |
| Jun 26, 3:57 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 48 min |
| Jun 26, 3:59 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 51 min |
| Jun 26, 4:07 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 48 min |
| Jun 26, 4:21 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 49 min |
| Jun 26, 4:43 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hyde, Potter | 62 min |
| Jun 26, 4:43 PM CDT | Severe Thunderstorm Warning | ABR | Sully | 62 min |
| Jun 26, 5:06 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 49 min |
| Jun 26, 5:21 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 34 min |
| Jun 26, 5:50 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 45 min |
| Jun 26, 6:18 PM CDT | Severe Thunderstorm Warning | ABR | Day | 62 min |
| Jun 26, 6:22 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 63 min |
| Jun 26, 6:46 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Marshall | 64 min |
| Jun 26, 6:53 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 47 min |
| Jun 26, 6:57 PM CDT | Severe Thunderstorm Warning | ABR | Roberts | 63 min |
| Jun 26, 7:19 PM CDT | Severe Thunderstorm Warning | ABR | Day | 51 min |
| Jun 26, 7:27 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 33 min |
| Jun 26, 7:32 PM CDT | Severe Thunderstorm Warning | ABR | Clark | 48 min |
| Jun 26, 7:35 PM CDT | Severe Thunderstorm Warning | ABR | Stanley | 65 min |
| Jun 26, 7:36 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 19 min |
| Jun 26, 7:46 PM CDT | Severe Thunderstorm Warning | ABR | Grant | 59 min |
| Jun 26, 7:59 PM CDT | Severe Thunderstorm Warning | ABR | Codington | 31 min |
| Jun 26, 7:59 PM CDT | Severe Thunderstorm Warning | FSD | Kingsbury | 46 min |
| Jun 26, 8:03 PM CDT | Severe Thunderstorm Warning | ABR | Roberts | 32 min |
| Jun 26, 8:14 PM CDT | Severe Thunderstorm Warning | ABR | Deuel | 46 min |
| Jun 26, 8:48 PM CDT | Severe Thunderstorm Warning | ABR | Deuel, Grant | 47 min |
| Jun 29, 11:15 AM CDT | Severe Thunderstorm Warning | FSD | Union | 30 min |
| Jul 1, 3:57 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 33 min |
| Jul 1, 4:14 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 46 min |
| Jul 1, 4:44 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 46 min |
| Jul 1, 6:15 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 50 min |
| Jul 1, 7:00 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 60 min |
| Jul 1, 7:15 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 45 min |
| Jul 1, 8:30 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 60 min |
| Jul 1, 11:36 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 44 min |
| Jul 2, 2:08 AM CDT | Severe Thunderstorm Warning | UNR | Harding | 47 min |
| Jul 2, 6:27 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 33 min |
| Jul 2, 7:23 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 52 min |
| Jul 2, 7:51 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 49 min |
| Jul 2, 10:22 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 48 min |
| Jul 2, 11:08 PM CDT | Severe Thunderstorm Warning | UNR | 62 min | |
| Jul 3, 12:12 AM CDT | Severe Thunderstorm Warning | UNR | 48 min | |
| Jul 3, 12:38 AM CDT | Severe Thunderstorm Warning | ABR | Lyman | 47 min |
| Jul 3, 12:53 AM CDT | Severe Thunderstorm Warning | ABR | Jones | 47 min |
| Jul 3, 1:00 AM CDT | Severe Thunderstorm Warning | UNR | Bennett | 65 min |
| Jul 3, 3:35 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 45 min |
| Jul 3, 4:12 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 48 min |
| Jul 5, 7:45 AM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson | 45 min |
| Jul 5, 4:00 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 45 min |
| Jul 5, 4:50 PM CDT | Severe Thunderstorm Warning | ABR | Hand, Hyde | 60 min |
| Jul 5, 5:52 PM CDT | Severe Thunderstorm Warning | ABR | Hand | 63 min |
| Jul 5, 6:37 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo | 63 min |
| Jul 5, 7:34 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule | 51 min |
| Jul 5, 8:26 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule | 29 min |
| Jul 5, 8:56 PM CDT | Severe Thunderstorm Warning | FSD | Douglas | 34 min |
| Jul 5, 9:12 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 63 min |
| Jul 5, 9:33 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Douglas | 32 min |
| Jul 5, 10:10 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 60 min |
| Jul 5, 11:56 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 64 min |
| Jul 6, 1:00 AM CDT | Severe Thunderstorm Warning | UNR | Meade, Ziebach | 60 min |
| Jul 6, 1:40 AM CDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 50 min |
| Jul 6, 7:41 AM CDT | Severe Thunderstorm Warning | ABR | Lyman | 39 min |
| Jul 6, 8:04 AM CDT | Severe Thunderstorm Warning | ABR | Buffalo | 61 min |
| Jul 6, 8:10 AM CDT | Severe Thunderstorm Warning | FSD | Brule | 35 min |
| Jul 6, 8:11 AM CDT | Severe Thunderstorm Warning | UNR | Perkins, Ziebach | 34 min |
| Jul 6, 8:45 AM CDT | Severe Thunderstorm Warning | ABR | Lyman | 50 min |
| Jul 6, 8:48 AM CDT | Severe Thunderstorm Warning | FSD | Brule | 32 min |
| Jul 6, 8:49 AM CDT | Severe Thunderstorm Warning | ABR | Dewey | 51 min |
| Jul 6, 9:21 AM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Douglas | 49 min |
| Jul 6, 10:04 AM CDT | Severe Thunderstorm Warning | FSD | Charles Mix | 46 min |
| Jul 6, 10:11 AM CDT | Severe Thunderstorm Warning | FSD | Douglas | 34 min |
| Jul 6, 11:21 AM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson | 49 min |
| Jul 6, 11:22 AM CDT | Severe Thunderstorm Warning | ABR | Jones | 63 min |
| Jul 6, 12:07 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 63 min |
| Jul 6, 12:26 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 64 min |
| Jul 6, 1:31 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 49 min |
| Jul 6, 1:53 PM CDT | Severe Thunderstorm Warning | FSD | Aurora | 47 min |
| Jul 6, 2:00 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix | 35 min |
| Jul 6, 2:16 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Douglas | 34 min |
| Jul 6, 2:39 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix | 36 min |
| Jul 6, 2:46 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson | 49 min |
| Jul 6, 3:18 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix | 32 min |
| Jul 6, 3:54 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Yankton | 36 min |
| Jul 6, 4:30 PM CDT | Severe Thunderstorm Warning | FSD | Yankton | 35 min |
| Jul 6, 5:33 PM CDT | Severe Thunderstorm Warning | FSD | Clay | 32 min |
| Jul 6, 5:36 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 49 min |
| Jul 6, 6:09 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 46 min |
| Jul 6, 6:14 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, McPherson | 61 min |
| Jul 6, 6:46 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 49 min |
| Jul 6, 6:47 PM CDT | Severe Thunderstorm Warning | ABR | McPherson | 58 min |
| Jul 6, 6:48 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 47 min |
| Jul 6, 6:52 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins | 48 min |
| Jul 6, 7:01 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 64 min |
| Jul 6, 8:01 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds | 64 min |
| Jul 6, 8:43 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 62 min |
| Jul 6, 8:47 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Faulk, Spink | 63 min |
| Jul 8, 1:05 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Pennington | 45 min |
| Jul 8, 2:07 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 48 min |
| Jul 8, 3:54 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Pennington | 46 min |
| Jul 11, 5:08 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 62 min |
| Jul 11, 6:56 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 49 min |
| Jul 11, 10:30 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 35 min |
| Jul 11, 11:37 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 48 min |
| Jul 12, 12:13 AM CDT | Severe Thunderstorm Warning | UNR | Meade | 62 min |
| Jul 12, 3:45 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, McPherson | 60 min |
| Jul 13, 5:30 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 65 min |
| Jul 13, 6:36 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 64 min |
| Jul 13, 7:42 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Stanley | 63 min |
| Jul 14, 2:44 AM CDT | Severe Thunderstorm Warning | UNR | Harding | 46 min |
| Jul 14, 4:19 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 51 min |
| Jul 14, 5:08 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 47 min |
| Jul 14, 5:35 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 45 min |
| Jul 14, 5:55 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 50 min |
| Jul 14, 7:39 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 61 min |
| Jul 14, 7:59 PM CDT | Severe Thunderstorm Warning | ABR | Codington | 61 min |
| Jul 14, 8:03 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 62 min |
| Jul 14, 8:23 PM CDT | Severe Thunderstorm Warning | ABR | Grant | 62 min |
| Jul 14, 8:54 PM CDT | Severe Thunderstorm Warning | ABR | Hamlin | 61 min |
| Jul 14, 8:58 PM CDT | Severe Thunderstorm Warning | ABR | Codington, Deuel | 62 min |
| Jul 14, 9:11 PM CDT | Severe Thunderstorm Warning | FSD | Kingsbury | 34 min |
| Jul 14, 9:48 PM CDT | Severe Thunderstorm Warning | FSD | Kingsbury | 47 min |
| Jul 14, 10:24 PM CDT | Severe Thunderstorm Warning | FSD | Miner | 46 min |
| Jul 14, 10:29 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 36 min |
| Jul 14, 10:38 PM CDT | Severe Thunderstorm Warning | FSD | Lake, Moody | 47 min |
| Jul 14, 11:18 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 32 min |
| Jul 15, 1:38 AM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 47 min |
| Jul 15, 2:12 AM CDT | Severe Thunderstorm Warning | UNR | 48 min | |
| Jul 15, 11:26 AM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 49 min |
| Jul 15, 12:04 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 46 min |
| Jul 15, 4:31 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 44 min |
| Jul 15, 4:40 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 40 min |
| Jul 15, 5:16 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 49 min |
| Jul 15, 5:22 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 48 min |
| Jul 15, 7:38 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 47 min |
| Jul 17, 7:03 AM CDT | Severe Thunderstorm Warning | ABR | Codington | 32 min |
| Jul 17, 4:05 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 30 min |
| Jul 17, 4:29 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 36 min |
| Jul 18, 10:18 AM CDT | Severe Thunderstorm Warning | ABR | Roberts | 32 min |
| Jul 18, 4:58 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 62 min |
| Jul 18, 5:50 PM CDT | Severe Thunderstorm Warning | ABR | Hyde, Potter, Sully | 55 min |
| Jul 18, 5:53 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Stanley | 62 min |
| Jul 18, 6:04 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds | 66 min |
| Jul 18, 6:28 PM CDT | Severe Thunderstorm Warning | ABR | Faulk | 47 min |
| Jul 18, 6:45 PM CDT | Severe Thunderstorm Warning | ABR | Spink | 65 min |
| Jul 18, 7:05 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 50 min |
| Jul 18, 7:12 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Pennington | 48 min |
| Jul 18, 7:33 PM CDT | Severe Thunderstorm Warning | FSD | Jerauld | 32 min |
| Jul 18, 8:01 PM CDT | Severe Thunderstorm Warning | FSD | Kingsbury, Miner | 34 min |
| Jul 18, 8:04 PM CDT | Severe Thunderstorm Warning | ABR | Hamlin | 61 min |
| Jul 18, 8:18 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 32 min |
| Jul 18, 8:28 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson | 32 min |
| Jul 18, 8:50 PM CDT | Severe Thunderstorm Warning | FSD | McCook | 35 min |
| Jul 18, 9:09 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 31 min |
| Jul 18, 9:28 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Turner | 32 min |
| Jul 18, 9:39 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 11 min |
| Jul 18, 9:45 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Union | 45 min |
| Jul 18, 10:28 PM CDT | Severe Thunderstorm Warning | FSD | Davison | 32 min |
| Jul 18, 11:19 PM CDT | Severe Thunderstorm Warning | FSD | Hanson | 36 min |
| Jul 18, 11:39 PM CDT | Severe Thunderstorm Warning | FSD | McCook | 31 min |
| Jul 19, 12:08 AM CDT | Severe Thunderstorm Warning | FSD | Turner | 32 min |
| Jul 20, 12:01 AM CDT | Severe Thunderstorm Warning | UNR | Custer | 49 min |
| Jul 20, 3:50 AM CDT | Severe Thunderstorm Warning | ABR | Hand, Hyde | 60 min |
| Jul 20, 4:42 AM CDT | Severe Thunderstorm Warning | FSD | Beadle | 48 min |
| Jul 20, 5:16 AM CDT | Severe Thunderstorm Warning | FSD | Beadle | 49 min |
| Jul 20, 9:27 AM CDT | Severe Thunderstorm Warning | ABR | Hamlin | 63 min |
| Jul 20, 4:46 PM CDT | Severe Thunderstorm Warning | ABR | Marshall | 49 min |
| Jul 20, 5:28 PM CDT | Severe Thunderstorm Warning | ABR | Roberts | 62 min |
| Jul 20, 5:34 PM CDT | Severe Thunderstorm Warning | ABR | Marshall | 31 min |
| Jul 21, 2:12 AM CDT | Severe Thunderstorm Warning | ABR | Lyman | 48 min |
| Jul 21, 3:22 AM CDT | Severe Thunderstorm Warning | ABR | Hand, Hyde | 63 min |
| Jul 21, 5:25 AM CDT | Severe Thunderstorm Warning | FSD | Clay, Yankton | 45 min |
| Jul 21, 6:04 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Union | 31 min |
| Jul 23, 3:25 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 50 min |
| Aug 1, 3:32 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 48 min |
| Aug 1, 5:30 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 50 min |
| Aug 1, 6:11 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 44 min |
| Aug 1, 6:15 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 45 min |
| Aug 8, 10:05 PM CDT | Severe Thunderstorm Warning | UNR | 45 min | |
| Aug 9, 3:08 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Sully | 62 min |
| Aug 9, 6:15 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 35 min |
| Aug 9, 6:20 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 65 min |
| Aug 10, 7:04 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 61 min |
| Aug 10, 7:43 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 32 min |
| Aug 11, 1:10 PM CDT | Severe Thunderstorm Warning | UNR | Bennett | 35 min |
| Aug 11, 1:38 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 32 min |
| Aug 11, 2:15 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 30 min |
| Aug 11, 2:42 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 33 min |
| Aug 11, 3:20 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 50 min |
| Aug 14, 10:29 PM CDT | Severe Thunderstorm Warning | FSD | Union | 31 min |
| Aug 15, 6:57 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 63 min |
| Aug 15, 7:00 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 50 min |
| Aug 15, 7:27 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 48 min |
| Aug 15, 7:52 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 48 min |
| Aug 17, 7:34 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 46 min |
| Aug 17, 8:14 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 46 min |
| Aug 17, 8:34 PM CDT | Severe Thunderstorm Warning | UNR | 46 min | |
| Aug 17, 8:50 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson | 50 min |
| Aug 17, 9:15 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 50 min |
| Aug 17, 9:40 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 45 min |
| Aug 17, 9:57 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 48 min |
| Aug 17, 10:02 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 53 min |
| Aug 17, 10:38 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 47 min |
| Aug 17, 10:49 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 61 min |
| Aug 17, 10:55 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 35 min |
| Aug 17, 11:32 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 63 min |
| Aug 18, 3:26 AM CDT | Severe Thunderstorm Warning | UNR | Pennington | 34 min |
| Aug 18, 4:20 AM CDT | Severe Thunderstorm Warning | UNR | Meade | 50 min |
| Aug 18, 6:29 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 36 min |
| Aug 18, 7:05 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 65 min |
| Aug 18, 7:08 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 62 min |
| Aug 18, 7:34 PM CDT | Severe Thunderstorm Warning | ABR | Campbell | 61 min |
| Aug 18, 9:52 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 53 min |
| Aug 18, 10:29 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins | 66 min |
| Aug 18, 10:44 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 21 min |
| Aug 18, 11:11 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 64 min |
| Aug 19, 3:39 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 36 min |
| Aug 19, 4:52 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Kingsbury | 53 min |
| Aug 19, 5:10 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Douglas | 35 min |
| Aug 19, 5:11 PM CDT | Severe Thunderstorm Warning | ABR | Clark | 34 min |
| Aug 19, 5:17 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 48 min |
| Aug 19, 5:36 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Douglas | 44 min |
| Aug 19, 5:47 PM CDT | Severe Thunderstorm Warning | FSD | Kingsbury | 33 min |
| Aug 19, 6:12 PM CDT | Severe Thunderstorm Warning | FSD | Miner, Sanborn | 33 min |
| Aug 19, 6:23 PM CDT | Severe Thunderstorm Warning | FSD | Kingsbury | 47 min |
| Aug 19, 6:32 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Douglas | 33 min |
| Aug 19, 6:49 PM CDT | Severe Thunderstorm Warning | FSD | Miner, Sanborn | 46 min |
| Aug 19, 7:15 PM CDT | Severe Thunderstorm Warning | FSD | Lake | 30 min |
| Aug 20, 2:08 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 32 min |
| Aug 20, 2:40 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 30 min |
| Aug 20, 3:09 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 61 min |
| Aug 20, 4:04 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 66 min |
| Aug 20, 5:00 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 65 min |
| Aug 20, 5:48 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 32 min |
| Aug 20, 6:00 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 60 min |
| Aug 20, 6:00 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 65 min |
| Aug 20, 7:17 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 48 min |
| Aug 20, 8:20 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 35 min |
| Aug 21, 9:53 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 17 min |
| Aug 21, 9:58 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 32 min |
| Aug 21, 10:16 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 34 min |
| Aug 21, 10:28 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 17 min |
| Aug 21, 10:37 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 48 min |
| Aug 22, 4:45 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 50 min |
| Aug 22, 8:25 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 60 min |
| Aug 22, 8:36 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 64 min |
| Aug 22, 8:54 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 61 min |
| Aug 22, 8:54 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 66 min |
| Aug 22, 9:16 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins | 59 min |
| Aug 22, 9:56 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 49 min |
| Aug 22, 10:29 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 46 min |
| Aug 22, 11:30 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 60 min |
| Aug 22, 11:54 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Lyman | 61 min |
| Aug 23, 1:36 AM CDT | Severe Thunderstorm Warning | ABR | Spink | 34 min |
| Aug 23, 2:33 AM CDT | Severe Thunderstorm Warning | ABR | Day, Grant, Roberts | 62 min |
| Aug 23, 2:33 AM CDT | Severe Thunderstorm Warning | ABR | Codington | 62 min |
| Aug 23, 4:09 AM CDT | Severe Thunderstorm Warning | FSD | Hutchinson | 36 min |
| Aug 23, 4:32 AM CDT | Severe Thunderstorm Warning | FSD | Turner | 33 min |
| Aug 23, 10:33 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 32 min |
| Aug 24, 1:23 AM CDT | Severe Thunderstorm Warning | UNR | Perkins | 47 min |
| Aug 24, 1:48 AM CDT | Severe Thunderstorm Warning | ABR | Dewey | 32 min |
| Aug 24, 1:57 AM CDT | Severe Thunderstorm Warning | UNR | Harding | 63 min |
| Aug 24, 2:02 AM CDT | Severe Thunderstorm Warning | ABR | Corson | 58 min |
| Aug 24, 2:26 AM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Walworth | 49 min |
| Aug 24, 2:44 AM CDT | Severe Thunderstorm Warning | UNR | Perkins | 51 min |
| Aug 24, 2:56 AM CDT | Severe Thunderstorm Warning | UNR | Harding | 49 min |
| Aug 24, 3:14 AM CDT | Severe Thunderstorm Warning | UNR | Butte, Perkins | 46 min |
| Aug 24, 3:45 AM CDT | Severe Thunderstorm Warning | UNR | Perkins | 50 min |
| Aug 24, 3:57 AM CDT | Severe Thunderstorm Warning | UNR | Meade | 48 min |
| Aug 24, 4:10 AM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 65 min |
| Aug 24, 4:26 AM CDT | Severe Thunderstorm Warning | FSD | Beadle | 34 min |
| Aug 24, 4:28 AM CDT | Severe Thunderstorm Warning | ABR | Clark, Spink | 62 min |
| Aug 24, 5:29 AM CDT | Severe Thunderstorm Warning | ABR | Potter, Sully | 61 min |
| Aug 24, 5:55 AM CDT | Severe Thunderstorm Warning | ABR | Hughes, Hyde | 65 min |
| Aug 24, 6:23 AM CDT | Severe Thunderstorm Warning | ABR | Hand | 62 min |
| Aug 24, 6:53 AM CDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld | 47 min |
| Aug 24, 7:21 AM CDT | Severe Thunderstorm Warning | FSD | Sanborn | 34 min |
| Aug 24, 7:29 AM CDT | Severe Thunderstorm Warning | FSD | Davison | 51 min |
| Aug 24, 7:47 AM CDT | Severe Thunderstorm Warning | FSD | Kingsbury, Miner | 48 min |
| Aug 24, 7:52 AM CDT | Severe Thunderstorm Warning | FSD | Hanson | 48 min |
| Aug 24, 8:04 AM CDT | Severe Thunderstorm Warning | FSD | McCook | 66 min |
| Aug 24, 8:16 AM CDT | Severe Thunderstorm Warning | FSD | Lake | 49 min |
| Aug 24, 8:32 AM CDT | Severe Thunderstorm Warning | FSD | Minnehaha, Turner | 58 min |
| Aug 24, 8:43 AM CDT | Severe Thunderstorm Warning | FSD | Moody | 47 min |
| Aug 24, 8:46 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 64 min |
| Aug 26, 4:35 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 50 min |
| Aug 26, 4:59 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 36 min |
| Aug 26, 5:06 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 64 min |
| Aug 26, 5:07 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 63 min |
| Aug 26, 5:34 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 46 min |
| Aug 26, 5:48 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 47 min |
| Aug 26, 5:54 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Pennington | 46 min |
| Aug 26, 6:06 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 64 min |
| Aug 26, 6:08 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 47 min |
| Aug 26, 6:23 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 47 min |
| Aug 26, 6:29 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 51 min |
| Aug 26, 6:43 PM CDT | Severe Thunderstorm Warning | ABR | Walworth | 62 min |
| Aug 26, 6:52 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 63 min |
| Aug 26, 7:02 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 33 min |
| Aug 26, 7:41 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 49 min |
| Aug 26, 7:43 PM CDT | Severe Thunderstorm Warning | ABR | Walworth | 62 min |
| Aug 26, 8:00 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 45 min |
| Aug 26, 8:59 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 46 min |
| Aug 26, 9:16 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 49 min |
| Aug 26, 9:29 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 51 min |
| Aug 26, 10:07 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Walworth | 58 min |
| Aug 26, 10:18 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 47 min |
| Aug 26, 11:39 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 61 min |
| Aug 27, 1:44 AM CDT | Severe Thunderstorm Warning | ABR | Stanley | 61 min |
| Aug 27, 2:21 AM CDT | Severe Thunderstorm Warning | ABR | Hughes | 64 min |
| Aug 27, 2:47 AM CDT | Severe Thunderstorm Warning | ABR | Stanley | 63 min |
| Aug 27, 4:44 AM CDT | Severe Thunderstorm Warning | FSD | Beadle | 46 min |
| Aug 30, 6:11 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 34 min |
| Aug 30, 6:16 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 29 min |
| Aug 30, 6:33 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 32 min |
| Aug 30, 6:48 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 47 min |
| Aug 30, 8:20 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Perkins | 35 min |
| Aug 30, 11:08 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 47 min |
| Aug 30, 11:21 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson | 34 min |
| Aug 30, 11:56 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Mellette | 34 min |
| Aug 31, 12:31 AM CDT | Severe Thunderstorm Warning | UNR | Mellette | 34 min |
| Sep 10, 10:32 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 48 min |
| Sep 11, 12:40 AM CDT | Severe Thunderstorm Warning | ABR | Corson | 60 min |
| Sep 13, 12:57 AM CDT | Severe Thunderstorm Warning | ABR | Brown | 63 min |
| Sep 28, 4:54 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 46 min |
| Sep 28, 7:24 PM CDT | Severe Thunderstorm Warning | FSD | Miner, Sanborn | 46 min |
| Sep 28, 9:44 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 46 min |
| Oct 15, 4:05 PM CDT | Severe Thunderstorm Warning | ABR | Day | 35 min |
| Oct 15, 4:11 PM CDT | Severe Thunderstorm Warning | ABR | Day | 29 min |
| Oct 15, 11:05 PM CDT | Severe Thunderstorm Warning | ABR | Day | 45 min |
| Oct 16, 3:07 AM CDT | Severe Thunderstorm Warning | FSD | Moody | 33 min |
| Oct 16, 6:42 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Sanborn | 33 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pennington County41
- Meade County33
- Custer County22
- Jackson County19
- Harding County19
- Haakon County18
- Fall River County17
- Lawrence County17
- Lyman County16
- Perkins County15
- Ziebach County14
- Butte County13
- Jones County13
- Charles Mix County12
- Tripp County12
- Beadle County12
- Mellette County12
- Kingsbury County11
- Brown County11
- Dewey County11
- Day County10
- Minnehaha County10
- Union County10
- Codington County10
- Stanley County10
- Sanborn County10
- Lincoln County9
- Brule County9
- Todd County9
- Hand County9
- Miner County9
- Gregory County8
- Aurora County8
- Roberts County8
- Hamlin County8
- Corson County8
- Hyde County8
- Douglas County8
- Grant County7
- Faulk County7
25 more counties
- Davison County7
- Spink County7
- Clark County6
- Lake County6
- Moody County6
- Turner County6
- Brookings County6
- Deuel County6
- Bennett County6
- Hutchinson County6
- Edmunds County6
- Campbell County6
- McCook County5
- Bon Homme County5
- Hanson County5
- Jerauld County5
- McPherson County5
- Walworth County5
- Hughes County5
- Marshall County4
- Potter County4
- Sully County4
- Buffalo County3
- Clay County3
- Yankton County3
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive19971999
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.