Alert archive / South Dakota / Severe Thunderstorm Warnings / 2011
Severe Thunderstorm Warnings in South Dakota, August 2011
216 severe thunderstorm warnings in August 2011. 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 2011. Tap one for its archive.
- Severe Thunderstorm Warnings
- 216
- Busiest day
- August 18, 201133 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 |
|---|---|---|---|---|
| Jul 31, 7:23 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 67 min |
| Jul 31, 7:30 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 60 min |
| Jul 31, 7:52 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 53 min |
| Jul 31, 7:59 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 61 min |
| Jul 31, 8:35 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 44 min |
| Jul 31, 8:41 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 34 min |
| Jul 31, 10:42 PM CDT | Severe Thunderstorm Warning | UNR | Perkins, Ziebach | 51 min |
| Jul 31, 11:04 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 35 min |
| Aug 1, 2:36 AM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Dewey, Walworth | 24 min |
| Aug 1, 1:38 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 36 min |
| Aug 1, 2:03 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 42 min |
| Aug 1, 2:06 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 54 min |
| Aug 1, 2:21 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 20 min |
| Aug 1, 2:54 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 66 min |
| Aug 1, 3:28 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Meade, Perkins | 62 min |
| Aug 1, 4:21 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins | 54 min |
| Aug 1, 5:02 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins, Ziebach | 73 min |
| Aug 1, 5:29 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Meade | 61 min |
| Aug 1, 5:43 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 62 min |
| Aug 1, 6:38 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 30 min |
| Aug 1, 11:12 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Mellette | 44 min |
| Aug 1, 11:23 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 52 min |
| Aug 2, 12:02 AM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman | 43 min |
| Aug 2, 12:27 AM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman, Stanley | 33 min |
| Aug 2, 12:44 AM CDT | Severe Thunderstorm Warning | ABR | Lyman | 46 min |
| Aug 2, 12:58 AM CDT | Severe Thunderstorm Warning | ABR | Hughes, Jones, Lyman, Stanley | 32 min |
| Aug 2, 1:28 AM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hand, Hughes, Hyde, Lyman, Stanley | 47 min |
| Aug 2, 2:10 AM CDT | Severe Thunderstorm Warning | ABR | Hand, Hyde | 50 min |
| Aug 2, 2:35 AM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand, Spink | 40 min |
| Aug 2, 2:41 AM CDT | Severe Thunderstorm Warning | FSD | Beadle | 34 min |
| Aug 2, 3:15 AM CDT | Severe Thunderstorm Warning | ABR | Hand, Spink | 19 min |
| Aug 2, 4:27 AM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington, Hamlin | 48 min |
| Aug 2, 5:04 AM CDT | Severe Thunderstorm Warning | ABR | Codington, Deuel, Grant, Hamlin | 41 min |
| Aug 3, 5:04 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 41 min |
| Aug 5, 2:15 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 75 min |
| Aug 5, 2:23 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 67 min |
| Aug 5, 2:55 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 65 min |
| Aug 5, 3:58 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Meade | 62 min |
| Aug 5, 4:52 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Meade | 53 min |
| Aug 5, 4:56 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 64 min |
| Aug 5, 5:31 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 59 min |
| Aug 5, 5:44 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 61 min |
| Aug 5, 5:48 PM CDT | Severe Thunderstorm Warning | UNR | Perkins, Ziebach | 72 min |
| Aug 5, 6:03 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 57 min |
| Aug 5, 6:07 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 53 min |
| Aug 5, 6:24 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 66 min |
| Aug 5, 6:56 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 64 min |
| Aug 5, 6:59 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 61 min |
| Aug 5, 7:12 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 48 min |
| Aug 5, 7:13 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Pennington | 62 min |
| Aug 5, 7:23 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 67 min |
| Aug 5, 7:48 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson | 42 min |
| Aug 5, 7:52 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson | 53 min |
| Aug 5, 8:00 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Stanley, Sully | 60 min |
| Aug 5, 8:05 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 55 min |
| Aug 5, 8:30 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Hughes, Jones, Lyman, Stanley, Sully | 46 min |
| Aug 5, 11:38 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 52 min |
| Aug 6, 12:03 AM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule, Charles Mix, Douglas | 27 min |
| Aug 6, 12:27 AM CDT | Severe Thunderstorm Warning | FSD | Aurora, Charles Mix, Davison, Douglas | 33 min |
| Aug 6, 2:31 AM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 29 min |
| Aug 7, 2:05 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 55 min |
| Aug 7, 2:50 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 55 min |
| Aug 7, 3:27 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 63 min |
| Aug 7, 3:53 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 82 min |
| Aug 7, 4:39 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 66 min |
| Aug 7, 5:05 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 55 min |
| Aug 7, 5:19 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Lawrence, Meade | 43 min |
| Aug 7, 5:28 PM CDT | Severe Thunderstorm Warning | UNR | 62 min | |
| Aug 7, 5:30 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 35 min |
| Aug 7, 5:31 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 59 min |
| Aug 7, 5:33 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 57 min |
| Aug 7, 5:47 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 58 min |
| Aug 7, 5:48 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 31 min |
| Aug 7, 5:57 PM CDT | Severe Thunderstorm Warning | ABR | Stanley | 19 min |
| Aug 7, 6:05 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson | 55 min |
| Aug 7, 6:20 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Mellette | 55 min |
| Aug 7, 6:29 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding, Perkins | 61 min |
| Aug 7, 6:37 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 53 min |
| Aug 7, 6:47 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman | 43 min |
| Aug 7, 6:49 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Mellette, Todd | 56 min |
| Aug 7, 6:58 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Meade, Perkins | 62 min |
| Aug 7, 7:02 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Todd | 43 min |
| Aug 7, 7:26 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Perkins | 28 min |
| Aug 7, 7:31 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 59 min |
| Aug 7, 7:50 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins, Ziebach | 55 min |
| Aug 7, 8:29 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins, Ziebach | 61 min |
| Aug 7, 9:07 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 53 min |
| Aug 7, 9:39 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix, Gregory | 66 min |
| Aug 7, 10:33 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Clay, Union, Yankton | 57 min |
| Aug 7, 11:12 PM CDT | Severe Thunderstorm Warning | FSD | Union | 48 min |
| Aug 8, 5:10 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 53 min |
| Aug 10, 1:59 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 61 min |
| Aug 10, 3:57 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Todd | 63 min |
| Aug 10, 4:54 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Todd | 96 min |
| Aug 10, 5:39 PM CDT | Severe Thunderstorm Warning | UNR | Bennett | 66 min |
| Aug 10, 6:05 PM CDT | Severe Thunderstorm Warning | UNR | Bennett | 54 min |
| Aug 11, 1:49 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 41 min |
| Aug 11, 2:26 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Meade, Ziebach | 64 min |
| Aug 11, 2:53 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 67 min |
| Aug 11, 3:11 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Stanley, Sully | 64 min |
| Aug 11, 3:17 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River, Pennington | 58 min |
| Aug 11, 3:54 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Hyde, Stanley, Sully | 66 min |
| Aug 11, 3:58 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 45 min |
| Aug 11, 4:11 PM CDT | Severe Thunderstorm Warning | UNR | Bennett | 48 min |
| Aug 11, 4:14 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Pennington | 61 min |
| Aug 11, 4:16 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Jones, Lyman, Stanley, Sully | 59 min |
| Aug 11, 4:55 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Lawrence, Meade, Pennington | 43 min |
| Aug 11, 5:00 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hand, Hughes, Hyde, Lyman, Sully | 45 min |
| Aug 11, 5:05 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hughes, Jones, Lyman, Stanley | 55 min |
| Aug 11, 5:28 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 62 min |
| Aug 11, 5:45 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hand, Hyde, Lyman, Spink | 45 min |
| Aug 11, 5:54 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld, Sanborn | 51 min |
| Aug 11, 5:56 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Tripp | 52 min |
| Aug 11, 5:59 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hughes, Lyman | 61 min |
| Aug 11, 6:16 PM CDT | Severe Thunderstorm Warning | UNR | Todd, Tripp | 59 min |
| Aug 11, 6:19 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule, Charles Mix, Gregory | 41 min |
| Aug 11, 6:37 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Beadle, Jerauld, Kingsbury, Miner, Sanborn | 38 min |
| Aug 11, 6:59 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule, Charles Mix, Davison, Douglas, Gregory and 1 more | 46 min |
| Aug 11, 7:12 PM CDT | Severe Thunderstorm Warning | FSD | Miner | 33 min |
| Aug 11, 7:12 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 33 min |
| Aug 11, 7:29 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix, Davison, Douglas, Gregory, Hanson and 2 more | 46 min |
| Aug 11, 8:01 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Clay, Hutchinson, Turner, Yankton | 44 min |
| Aug 11, 8:06 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 54 min |
| Aug 11, 8:52 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 68 min |
| Aug 11, 9:00 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 60 min |
| Aug 11, 9:56 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding, Meade, Perkins | 64 min |
| Aug 12, 5:02 PM CDT | Severe Thunderstorm Warning | ABR | Marshall | 43 min |
| Aug 12, 7:55 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 35 min |
| Aug 14, 2:33 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 26 min |
| Aug 14, 3:45 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 60 min |
| Aug 14, 4:18 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 41 min |
| Aug 14, 7:26 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 49 min |
| Aug 14, 8:01 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 59 min |
| Aug 14, 9:46 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 27 min |
| Aug 14, 11:01 PM CDT | Severe Thunderstorm Warning | ABR | Spink | 44 min |
| Aug 14, 11:25 PM CDT | Severe Thunderstorm Warning | ABR | Day | 24 min |
| Aug 15, 10:12 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 63 min |
| Aug 15, 10:59 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 61 min |
| Aug 15, 11:51 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 54 min |
| Aug 15, 11:53 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 37 min |
| Aug 16, 12:46 AM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 59 min |
| Aug 17, 5:42 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson | 63 min |
| Aug 17, 5:54 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 51 min |
| Aug 17, 5:59 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 61 min |
| Aug 17, 6:11 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd | 64 min |
| Aug 17, 6:21 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Mellette | 54 min |
| Aug 17, 6:44 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson | 61 min |
| Aug 17, 6:45 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 45 min |
| Aug 17, 7:06 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 54 min |
| Aug 17, 7:11 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 49 min |
| Aug 17, 7:55 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd | 65 min |
| Aug 17, 8:01 PM CDT | Severe Thunderstorm Warning | UNR | Todd, Tripp | 59 min |
| Aug 17, 8:31 PM CDT | Severe Thunderstorm Warning | UNR | Todd, Tripp | 59 min |
| Aug 17, 8:58 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 44 min |
| Aug 18, 11:39 AM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 25 min |
| Aug 18, 11:55 AM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix | 35 min |
| Aug 18, 12:25 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Yankton | 35 min |
| Aug 18, 1:53 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Douglas, Hutchinson | 37 min |
| Aug 18, 2:28 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Clay, Hutchinson, Yankton | 47 min |
| Aug 18, 3:06 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Yankton | 39 min |
| Aug 18, 3:23 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson | 42 min |
| Aug 18, 3:42 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Union, Yankton | 48 min |
| Aug 18, 4:26 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson | 49 min |
| Aug 18, 4:26 PM CDT | Severe Thunderstorm Warning | FSD | Union | 49 min |
| Aug 18, 4:34 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Hutchinson, Yankton | 26 min |
| Aug 18, 4:34 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins | 56 min |
| Aug 18, 4:40 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 65 min |
| Aug 18, 4:42 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 63 min |
| Aug 18, 4:55 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 38 min |
| Aug 18, 5:06 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins, Ziebach | 54 min |
| Aug 18, 5:17 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Yankton | 28 min |
| Aug 18, 5:20 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson | 55 min |
| Aug 18, 5:22 PM CDT | Severe Thunderstorm Warning | FSD | Union | 23 min |
| Aug 18, 5:42 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Dewey, Walworth | 46 min |
| Aug 18, 5:46 PM CDT | Severe Thunderstorm Warning | FSD | Union | 29 min |
| Aug 18, 5:47 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Yankton | 28 min |
| Aug 18, 5:57 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Union | 33 min |
| Aug 18, 6:07 PM CDT | Severe Thunderstorm Warning | UNR | Bennett | 53 min |
| Aug 18, 6:26 PM CDT | Severe Thunderstorm Warning | FSD | Union | 34 min |
| Aug 18, 6:43 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix | 47 min |
| Aug 18, 6:48 PM CDT | Severe Thunderstorm Warning | ABR | Potter, Walworth | 27 min |
| Aug 18, 7:03 PM CDT | Severe Thunderstorm Warning | ABR | Potter | 27 min |
| Aug 18, 7:16 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Potter | 29 min |
| Aug 21, 3:39 AM CDT | Severe Thunderstorm Warning | UNR | Bennett, Todd | 66 min |
| Aug 22, 9:43 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Miner | 47 min |
| Aug 22, 10:17 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Minnehaha, Moody | 43 min |
| Aug 22, 10:27 PM CDT | Severe Thunderstorm Warning | FSD | Lake, Miner | 33 min |
| Aug 22, 10:56 PM CDT | Severe Thunderstorm Warning | FSD | Lake, Miner | 49 min |
| Aug 22, 11:23 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha, Moody | 52 min |
| Aug 23, 12:12 AM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 48 min |
| Aug 23, 12:53 AM CDT | Severe Thunderstorm Warning | ABR | Brown | 37 min |
| Aug 23, 1:15 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Marshall | 45 min |
| Aug 23, 2:33 AM CDT | Severe Thunderstorm Warning | ABR | Grant, Roberts | 42 min |
| Aug 25, 8:09 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson | 53 min |
| Aug 27, 5:14 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 49 min |
| Aug 27, 5:24 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 66 min |
| Aug 28, 4:17 AM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule, Douglas | 43 min |
| Aug 28, 4:27 AM CDT | Severe Thunderstorm Warning | ABR | Campbell, Edmunds, McPherson, Walworth | 63 min |
| Aug 28, 4:48 AM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule, Charles Mix, Douglas | 42 min |
| Aug 28, 5:04 AM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Faulk, Potter, Walworth | 41 min |
| Aug 28, 5:20 AM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Faulk, Potter, Walworth | 40 min |
| Aug 28, 5:43 AM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix | 47 min |
| Aug 28, 5:49 AM CDT | Severe Thunderstorm Warning | FSD | Hanson, McCook, Miner, Sanborn | 41 min |
| Aug 28, 5:51 AM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Faulk, Hand, Hyde, Potter, Spink and 1 more | 54 min |
| Aug 28, 6:30 AM CDT | Severe Thunderstorm Warning | FSD | Hanson, McCook, Miner, Minnehaha | 45 min |
| Aug 28, 6:46 AM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand, Spink | 44 min |
| Aug 28, 6:54 AM CDT | Severe Thunderstorm Warning | FSD | Beadle | 52 min |
| Aug 28, 6:58 AM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, McCook, Minnehaha, Turner | 47 min |
| Aug 28, 7:33 AM CDT | Severe Thunderstorm Warning | FSD | Beadle, Kingsbury, Miner, Sanborn | 42 min |
| Aug 28, 7:37 AM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix, Douglas, Hutchinson | 38 min |
| Aug 28, 7:54 AM CDT | Severe Thunderstorm Warning | FSD | Clay, Lincoln, Turner, Union, Yankton | 51 min |
| Aug 28, 7:57 AM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, Turner, Yankton | 33 min |
| Aug 28, 8:00 AM CDT | Severe Thunderstorm Warning | FSD | Brookings, Hanson, Kingsbury, Lake, McCook, Miner and 3 more | 60 min |
| Aug 28, 8:23 AM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Yankton | 25 min |
| Aug 28, 8:24 AM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson, Hutchinson, McCook, Turner | 51 min |
| Aug 29, 3:53 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 67 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Meade County25
- Perkins County20
- Pennington County18
- Corson County15
- Butte County15
- Todd County15
- Harding County14
- Dewey County13
- Bennett County13
- Charles Mix County13
- Bon Homme County13
- Jackson County12
- Lyman County12
- Yankton County12
- Mellette County11
- Jones County11
- Stanley County11
- Custer County10
- Ziebach County9
- Haakon County9
- Clay County9
- Union County9
- Tripp County9
- Miner County9
- Hutchinson County9
- Hughes County8
- Hand County8
- Douglas County8
- McCook County8
- Potter County7
- Sully County7
- Aurora County7
- Campbell County6
- Walworth County6
- Hyde County6
- Faulk County6
- Spink County6
- Brule County6
- Gregory County6
- Hanson County6
25 more counties
- Minnehaha County6
- Buffalo County5
- Beadle County5
- Lawrence County5
- Sanborn County5
- Turner County5
- Lake County5
- Davison County4
- Edmunds County4
- Fall River County3
- Kingsbury County3
- Moody County3
- Codington County2
- Hamlin County2
- Grant County2
- Jerauld County2
- Marshall County2
- Brookings County2
- Brown County2
- Clark County1
- Deuel County1
- Day County1
- Roberts County1
- McPherson County1
- Lincoln County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.