Alert archive / South Dakota / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in South Dakota, 2016
724 severe thunderstorm warnings in 2016. 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 2016. Tap one for its archive.
- Severe Thunderstorm Warnings
- 724
- Busiest month
- July270 severe thunderstorm warnings
- Busiest day
- August 10, 201641 severe thunderstorm warnings
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
492 of 724 severe thunderstorm warnings covering South Dakota in 2016 had a qualifying storm report inside them; 796 of 935 hail, wind and damage reports fell inside a warning, on average 23 minutes after it went out.
South Dakota, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Severe thunderstorm warnings | 724 | 492 | 32% | 935 | 85% | 23 min |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Sioux Falls, SD: severe thunderstorm warnings | 182 | 116 | 36% | 239 | 82% | 17 min |
| NWS Aberdeen, SD: severe thunderstorm warnings | 291 | 186 | 36% | 362 | 83% | 22 min |
| NWS Rapid City, SD: severe thunderstorm warnings | 391 | 279 | 29% | 553 | 87% | 24 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
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 |
|---|---|---|---|---|
| May 9, 4:26 PM CDT | Severe Thunderstorm Warning | FSD | Union | 34 min |
| May 9, 5:27 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Sanborn | 15 min |
| May 10, 3:12 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 19 min |
| May 19, 8:51 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 31 min |
| May 20, 4:46 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 59 min |
| May 20, 5:16 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 59 min |
| May 20, 6:01 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 59 min |
| May 20, 6:06 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 54 min |
| May 20, 6:48 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 57 min |
| May 20, 6:55 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 30 min |
| May 20, 7:38 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 67 min |
| May 20, 8:41 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 64 min |
| May 22, 3:52 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd | 53 min |
| May 22, 4:32 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd | 58 min |
| May 22, 5:02 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 58 min |
| May 22, 5:55 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 65 min |
| May 22, 6:05 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Walworth | 40 min |
| May 22, 6:32 PM CDT | Severe Thunderstorm Warning | ABR | Campbell | 46 min |
| May 22, 7:16 PM CDT | Severe Thunderstorm Warning | UNR | Todd, Tripp | 59 min |
| May 22, 8:07 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Walworth | 38 min |
| May 22, 8:28 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 62 min |
| May 22, 8:34 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 41 min |
| May 22, 9:13 PM CDT | Severe Thunderstorm Warning | FSD | Brule, Charles Mix, Gregory | 47 min |
| May 22, 9:18 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 27 min |
| May 22, 9:25 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 49 min |
| May 22, 9:28 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Mellette, Todd | 62 min |
| May 22, 9:51 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule, Charles Mix, Douglas | 39 min |
| May 22, 10:06 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 39 min |
| May 22, 10:23 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule, Davison, Douglas, Jerauld, Sanborn | 52 min |
| May 23, 5:22 PM CDT | Severe Thunderstorm Warning | FSD | Union | 23 min |
| May 24, 6:31 PM CDT | Severe Thunderstorm Warning | UNR | Fall River, Oglala Lakota | 59 min |
| May 24, 7:25 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Oglala Lakota | 54 min |
| May 24, 7:48 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson | 39 min |
| May 24, 8:31 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Mellette | 59 min |
| May 24, 8:32 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 43 min |
| May 24, 8:39 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 34 min |
| May 24, 9:27 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Mellette | 33 min |
| May 25, 2:03 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Pennington | 57 min |
| May 25, 2:49 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Pennington | 56 min |
| May 25, 3:32 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 44 min |
| May 25, 3:49 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 56 min |
| May 25, 4:37 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Jones, Lyman, Stanley | 53 min |
| May 25, 4:46 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Stanley, Sully | 44 min |
| May 25, 5:16 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Walworth | 29 min |
| May 25, 5:21 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Hyde, Stanley | 39 min |
| May 25, 5:55 PM CDT | Severe Thunderstorm Warning | ABR | Hand, Hughes, Hyde | 50 min |
| May 25, 6:29 PM CDT | Severe Thunderstorm Warning | ABR | Hand | 31 min |
| May 25, 6:31 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld | 44 min |
| May 25, 6:34 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule, Jerauld | 41 min |
| May 25, 6:37 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 38 min |
| May 25, 6:39 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Douglas, Gregory | 51 min |
| May 25, 7:02 PM CDT | Severe Thunderstorm Warning | ABR | Hand, Spink | 9 min |
| May 25, 7:08 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld, Sanborn | 52 min |
| May 25, 7:23 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Douglas, Gregory | 52 min |
| May 25, 7:54 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix, Douglas, Hutchinson | 51 min |
| May 25, 7:59 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Kingsbury, Miner, Sanborn | 46 min |
| May 25, 8:37 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Hutchinson, Yankton | 53 min |
| May 25, 9:04 PM CDT | Severe Thunderstorm Warning | ABR | Codington, Deuel, Hamlin | 28 min |
| May 25, 9:17 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Clay, Turner, Yankton | 43 min |
| May 26, 8:12 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, Faulk, Spink | 33 min |
| May 26, 8:23 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 42 min |
| May 26, 8:31 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, Spink | 19 min |
| May 26, 8:41 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand | 15 min |
| May 26, 8:55 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hyde, Lyman | 10 min |
| May 30, 12:25 AM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Lyman | 35 min |
| May 30, 1:01 AM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix | 28 min |
| May 30, 2:30 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 60 min |
| May 30, 2:39 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Meade | 51 min |
| May 30, 2:55 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Dewey, McPherson, Walworth | 50 min |
| May 30, 3:11 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 49 min |
| May 30, 3:16 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 59 min |
| May 30, 3:25 PM CDT | Severe Thunderstorm Warning | UNR | Perkins, Ziebach | 65 min |
| May 30, 3:35 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 25 min |
| May 30, 3:45 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Pennington | 60 min |
| May 30, 3:46 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, McPherson, Walworth | 44 min |
| May 30, 3:48 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 57 min |
| May 30, 4:03 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins, Ziebach | 57 min |
| May 30, 4:24 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, McPherson | 36 min |
| May 30, 4:43 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 48 min |
| May 30, 4:43 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 49 min |
| May 30, 5:09 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 30 min |
| May 30, 5:11 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 49 min |
| May 30, 5:26 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 36 min |
| May 30, 6:13 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Stanley | 32 min |
| May 30, 6:43 PM CDT | Severe Thunderstorm Warning | ABR | Walworth | 47 min |
| May 30, 7:18 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, McPherson | 33 min |
| May 30, 7:24 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, McPherson, Potter, Walworth | 50 min |
| May 30, 7:53 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, McPherson | 45 min |
| May 30, 9:20 PM CDT | Severe Thunderstorm Warning | ABR | Hand, Spink | 40 min |
| Jun 2, 4:15 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding, Meade, Perkins | 60 min |
| Jun 2, 5:14 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins | 61 min |
| Jun 2, 6:01 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Meade, Pennington, Perkins, Ziebach | 59 min |
| Jun 2, 6:57 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 60 min |
| Jun 2, 7:52 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Stanley | 38 min |
| Jun 2, 9:19 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Faulk, Hand, Hyde, Potter, Sully and 1 more | 41 min |
| Jun 2, 9:41 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Hyde, Lyman, Stanley | 23 min |
| Jun 3, 1:25 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds | 20 min |
| Jun 3, 1:35 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 25 min |
| Jun 3, 2:08 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 19 min |
| Jun 3, 2:24 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Faulk, Spink | 51 min |
| Jun 3, 4:18 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Kingsbury | 42 min |
| Jun 3, 4:52 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 29 min |
| Jun 3, 4:58 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Kingsbury | 17 min |
| Jun 3, 5:10 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Lake, Moody | 35 min |
| Jun 3, 5:41 PM CDT | Severe Thunderstorm Warning | FSD | Moody | 34 min |
| Jun 8, 3:58 AM CDT | Severe Thunderstorm Warning | ABR | Lyman | 32 min |
| Jun 8, 4:20 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 38 min |
| Jun 8, 6:09 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 51 min |
| Jun 9, 6:52 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 53 min |
| Jun 9, 7:38 PM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 67 min |
| Jun 9, 8:03 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding, Perkins | 57 min |
| Jun 9, 9:50 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Pennington | 55 min |
| Jun 9, 10:32 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade, Pennington | 58 min |
| Jun 11, 6:15 PM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 60 min |
| Jun 11, 6:43 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 47 min |
| Jun 11, 7:11 PM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 64 min |
| Jun 12, 5:16 AM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson | 8 min |
| Jun 12, 5:55 AM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Walworth | 28 min |
| Jun 12, 2:12 PM CDT | Severe Thunderstorm Warning | ABR | Roberts | 48 min |
| Jun 12, 2:27 PM CDT | Severe Thunderstorm Warning | ABR | Roberts | 63 min |
| Jun 13, 5:01 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 59 min |
| Jun 13, 5:34 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Oglala Lakota, Pennington | 56 min |
| Jun 13, 5:41 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 64 min |
| Jun 13, 6:14 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Haakon, Jackson, Meade, Mellette, Oglala Lakota and 1 more | 91 min |
| Jun 13, 7:06 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Oglala Lakota | 39 min |
| Jun 13, 7:46 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Mellette, Todd | 59 min |
| Jun 13, 8:38 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Todd | 82 min |
| Jun 14, 5:09 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 66 min |
| Jun 14, 7:20 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 55 min |
| Jun 14, 8:13 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 62 min |
| Jun 14, 9:04 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Meade | 24 min |
| Jun 17, 5:23 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 37 min |
| Jun 17, 6:51 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 24 min |
| Jun 17, 7:01 PM CDT | Severe Thunderstorm Warning | FSD | Lake | 44 min |
| Jun 17, 7:33 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook | 27 min |
| Jun 17, 7:38 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha, Moody | 41 min |
| Jun 17, 7:39 PM CDT | Severe Thunderstorm Warning | FSD | Lake | 36 min |
| Jun 17, 8:03 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Miner | 27 min |
| Jun 17, 8:17 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, McCook, Minnehaha, Turner | 28 min |
| Jun 17, 8:18 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 42 min |
| Jun 17, 8:44 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Lincoln, Turner, Union | 46 min |
| Jun 17, 8:49 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Hutchinson | 26 min |
| Jun 17, 9:13 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Hutchinson, Turner, Yankton | 47 min |
| Jun 17, 9:53 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Clay, Union, Yankton | 52 min |
| Jun 17, 10:33 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 42 min |
| Jun 17, 10:41 PM CDT | Severe Thunderstorm Warning | FSD | Union | 49 min |
| Jun 18, 3:51 AM CDT | Severe Thunderstorm Warning | UNR | Butte | 54 min |
| Jun 18, 4:36 AM CDT | Severe Thunderstorm Warning | UNR | Butte, Lawrence, Meade | 54 min |
| Jun 19, 9:39 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Lake, Moody | 36 min |
| Jun 19, 10:01 PM CDT | Severe Thunderstorm Warning | ABR | Deuel | 19 min |
| Jun 21, 6:48 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Meade, Pennington, Ziebach | 31 min |
| Jun 21, 9:29 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 37 min |
| Jun 21, 9:52 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Mellette | 23 min |
| Jun 21, 9:57 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 48 min |
| Jun 21, 10:24 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson | 34 min |
| Jun 21, 11:41 PM CDT | Severe Thunderstorm Warning | ABR | Stanley | 34 min |
| Jun 22, 12:08 AM CDT | Severe Thunderstorm Warning | ABR | Hughes, Hyde, Stanley, Sully | 52 min |
| Jun 22, 12:17 AM CDT | Severe Thunderstorm Warning | ABR | Hughes, Stanley, Sully | 30 min |
| Jun 22, 2:12 AM CDT | Severe Thunderstorm Warning | ABR | Buffalo | 30 min |
| Jun 22, 2:15 AM CDT | Severe Thunderstorm Warning | FSD | Brule | 32 min |
| Jun 22, 2:28 AM CDT | Severe Thunderstorm Warning | ABR | Hughes, Stanley, Sully | 62 min |
| Jun 22, 2:36 AM CDT | Severe Thunderstorm Warning | ABR | Brown, McPherson | 39 min |
| Jun 22, 3:13 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Marshall | 33 min |
| Jun 22, 3:18 AM CDT | Severe Thunderstorm Warning | ABR | Hughes, Hyde, Lyman, Stanley | 57 min |
| Jun 22, 3:47 AM CDT | Severe Thunderstorm Warning | FSD | Jerauld, Sanborn | 28 min |
| Jun 22, 4:14 AM CDT | Severe Thunderstorm Warning | ABR | Hughes, Lyman, Stanley | 46 min |
| Jun 22, 4:35 AM CDT | Severe Thunderstorm Warning | ABR | Buffalo | 20 min |
| Jun 23, 9:45 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 45 min |
| Jun 24, 12:55 AM CDT | Severe Thunderstorm Warning | UNR | Perkins | 32 min |
| Jun 24, 6:04 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 41 min |
| Jun 24, 8:17 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Todd | 43 min |
| Jun 27, 5:30 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 75 min |
| Jun 27, 6:39 PM CDT | Severe Thunderstorm Warning | UNR | Fall River, Oglala Lakota | 66 min |
| Jun 27, 7:20 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 55 min |
| Jun 28, 5:55 AM CDT | Severe Thunderstorm Warning | UNR | Oglala Lakota | 37 min |
| Jun 28, 3:55 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 65 min |
| Jun 28, 4:39 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 55 min |
| Jun 28, 4:44 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 61 min |
| Jun 28, 5:01 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Lawrence, Meade, Pennington | 44 min |
| Jun 28, 5:07 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 24 min |
| Jun 28, 5:13 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 77 min |
| Jun 28, 5:21 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Pennington | 54 min |
| Jun 28, 5:35 PM CDT | Severe Thunderstorm Warning | UNR | Oglala Lakota, Pennington | 40 min |
| Jun 28, 5:54 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Meade, Pennington | 66 min |
| Jun 28, 5:59 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 76 min |
| Jun 28, 6:11 PM CDT | Severe Thunderstorm Warning | UNR | Oglala Lakota | 37 min |
| Jun 28, 7:05 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 25 min |
| Jun 29, 2:58 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 44 min |
| Jun 29, 3:39 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 66 min |
| Jun 29, 4:33 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 57 min |
| Jun 29, 5:32 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Haakon, Meade, Pennington, Ziebach | 58 min |
| Jun 29, 6:11 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Meade, Pennington | 64 min |
| Jun 29, 7:03 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Mellette, Oglala Lakota, Pennington | 57 min |
| Jun 29, 7:05 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 55 min |
| Jun 29, 7:44 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Mellette, Todd, Tripp | 61 min |
| Jun 29, 7:57 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman | 30 min |
| Jun 29, 8:38 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Todd, Tripp | 67 min |
| Jun 29, 9:17 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 58 min |
| Jul 3, 1:18 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 57 min |
| Jul 3, 1:52 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 53 min |
| Jul 3, 2:23 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 52 min |
| Jul 3, 3:38 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 32 min |
| Jul 3, 4:26 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 64 min |
| Jul 3, 4:50 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 22 min |
| Jul 3, 5:04 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 41 min |
| Jul 3, 5:31 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 59 min |
| Jul 3, 5:37 PM CDT | Severe Thunderstorm Warning | UNR | Fall River, Oglala Lakota | 53 min |
| Jul 3, 5:46 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Oglala Lakota, Pennington | 59 min |
| Jul 3, 6:14 PM CDT | Severe Thunderstorm Warning | UNR | Oglala Lakota | 46 min |
| Jul 3, 6:26 PM CDT | Severe Thunderstorm Warning | UNR | Perkins, Ziebach | 34 min |
| Jul 3, 6:36 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 39 min |
| Jul 3, 6:44 PM CDT | Severe Thunderstorm Warning | UNR | Perkins, Ziebach | 31 min |
| Jul 3, 6:59 PM CDT | Severe Thunderstorm Warning | UNR | Oglala Lakota | 49 min |
| Jul 3, 7:01 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 15 min |
| Jul 3, 8:21 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Oglala Lakota | 39 min |
| Jul 4, 5:38 PM CDT | Severe Thunderstorm Warning | ABR | Brown, McPherson | 37 min |
| Jul 4, 6:17 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 28 min |
| Jul 4, 10:39 PM CDT | Severe Thunderstorm Warning | ABR | Roberts | 39 min |
| Jul 4, 11:42 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Hughes, Stanley, Sully | 35 min |
| Jul 5, 4:26 AM CDT | Severe Thunderstorm Warning | ABR | Roberts | 34 min |
| Jul 5, 3:50 PM CDT | Severe Thunderstorm Warning | ABR | Hand | 25 min |
| Jul 5, 4:03 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 42 min |
| Jul 5, 4:32 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Kingsbury | 58 min |
| Jul 5, 4:35 PM CDT | Severe Thunderstorm Warning | ABR | Codington, Deuel, Grant, Hamlin | 40 min |
| Jul 5, 4:35 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld, Sanborn | 40 min |
| Jul 5, 5:11 PM CDT | Severe Thunderstorm Warning | ABR | Deuel | 37 min |
| Jul 5, 5:28 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 25 min |
| Jul 5, 5:37 PM CDT | Severe Thunderstorm Warning | ABR | Deuel, Hamlin | 38 min |
| Jul 5, 5:41 PM CDT | Severe Thunderstorm Warning | ABR | Deuel, Grant | 21 min |
| Jul 5, 5:46 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Kingsbury | 29 min |
| Jul 5, 10:00 PM CDT | Severe Thunderstorm Warning | UNR | Bennett | 46 min |
| Jul 5, 10:17 PM CDT | Severe Thunderstorm Warning | UNR | Oglala Lakota, Pennington | 43 min |
| Jul 5, 10:52 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Pennington | 53 min |
| Jul 5, 11:44 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Ziebach | 60 min |
| Jul 6, 2:19 AM CDT | Severe Thunderstorm Warning | UNR | Butte, Lawrence, Meade | 56 min |
| Jul 6, 3:09 AM CDT | Severe Thunderstorm Warning | UNR | Meade | 66 min |
| Jul 6, 3:55 AM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 35 min |
| Jul 6, 3:31 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 59 min |
| Jul 6, 3:37 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Meade | 68 min |
| Jul 6, 4:22 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade, Pennington | 53 min |
| Jul 6, 4:24 PM CDT | Severe Thunderstorm Warning | UNR | Bennett | 21 min |
| Jul 6, 4:29 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 61 min |
| Jul 6, 4:34 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Meade, Pennington, Perkins, Ziebach | 56 min |
| Jul 6, 4:38 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 50 min |
| Jul 6, 4:42 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 63 min |
| Jul 6, 4:46 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Meade | 44 min |
| Jul 6, 4:53 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 67 min |
| Jul 6, 5:07 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 38 min |
| Jul 6, 5:26 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Meade, Pennington, Ziebach | 64 min |
| Jul 6, 5:47 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Meade, Pennington | 43 min |
| Jul 6, 5:58 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River, Oglala Lakota, Pennington | 62 min |
| Jul 6, 6:05 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 70 min |
| Jul 6, 6:21 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Jones, Stanley, Sully | 39 min |
| Jul 6, 6:31 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Oglala Lakota, Pennington | 59 min |
| Jul 6, 6:47 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding, Perkins | 58 min |
| Jul 6, 6:57 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Hughes, Potter, Stanley, Sully | 48 min |
| Jul 6, 7:01 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Mellette | 59 min |
| Jul 6, 7:32 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Perkins, Ziebach | 58 min |
| Jul 6, 7:34 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman, Stanley | 41 min |
| Jul 6, 7:38 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 37 min |
| Jul 6, 7:42 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Hughes, Hyde, Potter, Stanley, Sully | 48 min |
| Jul 6, 8:12 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman | 48 min |
| Jul 6, 8:27 PM CDT | Severe Thunderstorm Warning | ABR | Hand, Hyde | 48 min |
| Jul 6, 8:45 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 30 min |
| Jul 6, 8:56 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 34 min |
| Jul 6, 9:02 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 28 min |
| Jul 6, 9:06 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule, Jerauld | 24 min |
| Jul 6, 9:09 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix, Hutchinson | 36 min |
| Jul 6, 9:38 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Hutchinson, Turner, Yankton | 37 min |
| Jul 6, 10:05 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Kingsbury, Lake, Miner, Sanborn | 40 min |
| Jul 6, 10:10 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Lincoln, Turner, Union, Yankton | 50 min |
| Jul 6, 10:21 PM CDT | Severe Thunderstorm Warning | FSD | Hanson, McCook | 39 min |
| Jul 6, 10:39 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Kingsbury, Lake, Moody | 36 min |
| Jul 9, 12:28 AM CDT | Severe Thunderstorm Warning | UNR | Butte | 31 min |
| Jul 9, 5:14 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 61 min |
| Jul 9, 5:17 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Meade | 58 min |
| Jul 9, 6:11 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding, Meade, Perkins | 64 min |
| Jul 9, 6:54 PM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 66 min |
| Jul 9, 7:25 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 39 min |
| Jul 9, 7:54 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 28 min |
| Jul 9, 8:30 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 33 min |
| Jul 9, 9:15 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Dewey, Potter, Walworth | 60 min |
| Jul 9, 10:16 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Edmunds, McPherson, Walworth | 59 min |
| Jul 9, 10:18 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Hughes, Potter, Stanley, Sully | 42 min |
| Jul 9, 11:02 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Faulk, Hand, Hughes, Hyde, Potter and 2 more | 58 min |
| Jul 9, 11:10 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, McPherson | 50 min |
| Jul 10, 12:03 AM CDT | Severe Thunderstorm Warning | ABR | Hand, Hughes, Hyde, Sully | 22 min |
| Jul 10, 1:24 AM CDT | Severe Thunderstorm Warning | ABR | Marshall, Roberts | 51 min |
| Jul 10, 1:29 AM CDT | Severe Thunderstorm Warning | FSD | Beadle | 46 min |
| Jul 10, 1:58 AM CDT | Severe Thunderstorm Warning | ABR | Grant, Roberts | 32 min |
| Jul 10, 4:40 AM CDT | Severe Thunderstorm Warning | ABR | Clark, Day, Spink | 15 min |
| Jul 10, 5:43 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 23 min |
| Jul 10, 7:20 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 70 min |
| Jul 10, 7:36 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 54 min |
| Jul 10, 8:31 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 37 min |
| Jul 10, 9:25 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River, Oglala Lakota | 29 min |
| Jul 10, 9:42 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson | 48 min |
| Jul 10, 10:38 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Dewey, Edmunds, McPherson, Walworth | 67 min |
| Jul 11, 12:46 AM CDT | Severe Thunderstorm Warning | UNR | Perkins | 44 min |
| Jul 11, 5:25 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Dewey, Walworth | 50 min |
| Jul 14, 6:54 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 51 min |
| Jul 14, 7:22 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 38 min |
| Jul 14, 7:37 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 53 min |
| Jul 14, 8:14 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 50 min |
| Jul 14, 8:38 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 25 min |
| Jul 14, 8:52 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 38 min |
| Jul 14, 9:20 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins | 55 min |
| Jul 14, 10:03 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Ziebach | 42 min |
| Jul 14, 10:29 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 46 min |
| Jul 15, 4:16 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 48 min |
| Jul 15, 5:12 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 33 min |
| Jul 15, 6:17 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 28 min |
| Jul 16, 10:45 AM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 17 min |
| Jul 16, 11:38 AM CDT | Severe Thunderstorm Warning | ABR | Dewey | 23 min |
| Jul 16, 2:24 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Faulk | 14 min |
| Jul 16, 3:34 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Marshall, Spink | 41 min |
| Jul 16, 3:53 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 52 min |
| Jul 16, 4:10 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 33 min |
| Jul 16, 4:11 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 49 min |
| Jul 16, 4:15 PM CDT | Severe Thunderstorm Warning | ABR | Day, Marshall, Roberts | 45 min |
| Jul 16, 4:51 PM CDT | Severe Thunderstorm Warning | ABR | Codington, Day, Grant, Roberts | 39 min |
| Jul 16, 4:58 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 47 min |
| Jul 16, 5:15 PM CDT | Severe Thunderstorm Warning | ABR | Grant, Roberts | 45 min |
| Jul 16, 5:21 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Lawrence | 39 min |
| Jul 16, 5:30 PM CDT | Severe Thunderstorm Warning | ABR | Grant, Roberts | 21 min |
| Jul 16, 5:50 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 40 min |
| Jul 16, 5:58 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 47 min |
| Jul 16, 6:21 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Lawrence, Meade | 39 min |
| Jul 16, 6:28 PM CDT | Severe Thunderstorm Warning | UNR | Fall River, Oglala Lakota | 47 min |
| Jul 16, 6:29 PM CDT | Severe Thunderstorm Warning | ABR | Day, Marshall, Roberts | 46 min |
| Jul 16, 6:34 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade, Pennington | 41 min |
| Jul 16, 6:56 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Meade | 49 min |
| Jul 16, 6:59 PM CDT | Severe Thunderstorm Warning | ABR | Roberts | 46 min |
| Jul 16, 7:06 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Oglala Lakota, Pennington | 39 min |
| Jul 16, 7:33 PM CDT | Severe Thunderstorm Warning | ABR | Roberts | 27 min |
| Jul 16, 7:35 PM CDT | Severe Thunderstorm Warning | ABR | Clark | 40 min |
| Jul 16, 7:44 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 33 min |
| Jul 16, 7:46 PM CDT | Severe Thunderstorm Warning | UNR | Bennett | 19 min |
| Jul 16, 8:07 PM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington, Hamlin | 38 min |
| Jul 16, 8:25 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 50 min |
| Jul 16, 8:29 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins, Ziebach | 41 min |
| Jul 16, 8:50 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 40 min |
| Jul 16, 8:55 PM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington, Hamlin | 65 min |
| Jul 16, 9:03 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Hyde, Stanley, Sully | 42 min |
| Jul 16, 9:20 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Kingsbury | 40 min |
| Jul 16, 9:23 PM CDT | Severe Thunderstorm Warning | ABR | Deuel, Hamlin | 52 min |
| Jul 16, 9:50 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Dewey, Edmunds, Faulk, McPherson and 2 more | 40 min |
| Jul 16, 10:17 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 43 min |
| Jul 16, 10:30 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Campbell, Edmunds, Faulk, McPherson, Potter and 2 more | 60 min |
| Jul 16, 10:34 PM CDT | Severe Thunderstorm Warning | ABR | Deuel, Hamlin | 15 min |
| Jul 16, 10:50 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 40 min |
| Jul 16, 10:58 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Douglas, Gregory | 32 min |
| Jul 16, 11:09 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, Faulk, McPherson, Spink | 66 min |
| Jul 16, 11:18 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix, Douglas, Hutchinson, Turner, Yankton | 27 min |
| Jul 16, 11:34 PM CDT | Severe Thunderstorm Warning | FSD | McCook, Turner | 26 min |
| Jul 16, 11:39 PM CDT | Severe Thunderstorm Warning | ABR | Deuel | 21 min |
| Jul 16, 11:42 PM CDT | Severe Thunderstorm Warning | FSD | Brookings | 34 min |
| Jul 16, 11:45 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix, Clay, Hutchinson, Lincoln, Turner and 2 more | 30 min |
| Jul 17, 12:00 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln, McCook, Minnehaha, Turner | 45 min |
| Jul 17, 12:14 AM CDT | Severe Thunderstorm Warning | FSD | Clay, Lincoln, Turner, Union, Yankton | 31 min |
| Jul 17, 12:37 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha | 23 min |
| Jul 17, 12:41 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 34 min |
| Jul 17, 8:59 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 46 min |
| Jul 18, 3:17 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 58 min |
| Jul 18, 4:14 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 61 min |
| Jul 18, 5:13 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 62 min |
| Jul 18, 5:16 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 59 min |
| Jul 18, 5:44 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 61 min |
| Jul 18, 6:12 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 33 min |
| Jul 18, 6:41 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 41 min |
| Jul 18, 6:46 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 44 min |
| Jul 18, 7:27 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 63 min |
| Jul 18, 8:19 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Meade, Pennington, Ziebach | 56 min |
| Jul 18, 8:29 PM CDT | Severe Thunderstorm Warning | UNR | Oglala Lakota | 43 min |
| Jul 20, 4:53 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 67 min |
| Jul 20, 5:35 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 19 min |
| Jul 20, 6:43 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 38 min |
| Jul 22, 12:43 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, McPherson | 35 min |
| Jul 22, 1:15 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, McPherson | 45 min |
| Jul 22, 1:48 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, McPherson | 42 min |
| Jul 22, 2:19 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, Faulk, Spink | 41 min |
| Jul 22, 2:55 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, Faulk, Spink | 50 min |
| Jul 22, 3:10 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand | 35 min |
| Jul 22, 3:24 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand, Spink | 51 min |
| Jul 22, 3:59 PM CDT | Severe Thunderstorm Warning | ABR | Hand, Spink | 61 min |
| Jul 22, 4:05 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 40 min |
| Jul 22, 4:42 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 17 min |
| Jul 22, 4:48 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 42 min |
| Jul 22, 4:54 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 66 min |
| Jul 22, 5:03 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 42 min |
| Jul 22, 5:20 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 40 min |
| Jul 22, 5:20 PM CDT | Severe Thunderstorm Warning | UNR | Perkins, Ziebach | 70 min |
| Jul 22, 5:28 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 62 min |
| Jul 22, 5:33 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 57 min |
| Jul 22, 5:40 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Davison, Jerauld, Sanborn | 50 min |
| Jul 22, 5:41 PM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 31 min |
| Jul 22, 5:52 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 68 min |
| Jul 22, 6:28 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 47 min |
| Jul 22, 6:28 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 62 min |
| Jul 22, 7:13 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 47 min |
| Jul 22, 7:27 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 25 min |
| Jul 22, 9:25 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson | 65 min |
| Jul 22, 10:35 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson | 55 min |
| Jul 22, 11:28 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson | 62 min |
| Jul 23, 12:33 AM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 42 min |
| Jul 23, 1:15 AM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 15 min |
| Jul 23, 5:00 AM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey, Stanley | 23 min |
| Jul 23, 5:03 AM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 29 min |
| Jul 23, 6:10 AM CDT | Severe Thunderstorm Warning | ABR | Dewey, Stanley, Sully | 17 min |
| Jul 23, 6:33 AM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Stanley, Sully | 28 min |
| Jul 23, 7:21 AM CDT | Severe Thunderstorm Warning | ABR | Deuel, Grant | 17 min |
| Jul 25, 4:18 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 27 min |
| Jul 25, 7:14 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 21 min |
| Jul 26, 6:40 AM CDT | Severe Thunderstorm Warning | ABR | McPherson | 17 min |
| Jul 26, 9:53 AM CDT | Severe Thunderstorm Warning | ABR | McPherson | 37 min |
| Jul 26, 10:56 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Clark, Day, Spink | 20 min |
| Jul 26, 4:57 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 63 min |
| Jul 26, 5:11 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 64 min |
| Jul 26, 5:19 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 56 min |
| Jul 26, 5:49 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 37 min |
| Jul 26, 6:11 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 49 min |
| Jul 26, 6:15 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd | 60 min |
| Jul 26, 6:35 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 55 min |
| Jul 26, 6:43 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 47 min |
| Jul 26, 6:50 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 19 min |
| Jul 26, 7:13 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 62 min |
| Jul 26, 7:28 PM CDT | Severe Thunderstorm Warning | UNR | Fall River, Oglala Lakota | 42 min |
| Jul 26, 7:29 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 61 min |
| Jul 26, 7:42 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 48 min |
| Jul 26, 7:54 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 66 min |
| Jul 26, 8:07 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 53 min |
| Jul 26, 8:09 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson | 49 min |
| Jul 26, 8:34 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Todd | 56 min |
| Jul 27, 3:21 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River, Oglala Lakota | 54 min |
| Jul 27, 6:03 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman | 57 min |
| Jul 29, 2:32 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 32 min |
| Jul 29, 2:42 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 63 min |
| Jul 29, 3:37 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 38 min |
| Jul 29, 4:15 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 60 min |
| Jul 29, 4:38 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 41 min |
| Jul 29, 4:43 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 47 min |
| Jul 29, 5:07 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 53 min |
| Jul 29, 5:43 PM CDT | Severe Thunderstorm Warning | UNR | Fall River, Oglala Lakota | 62 min |
| Jul 29, 6:03 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 57 min |
| Jul 29, 8:29 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 46 min |
| Jul 30, 6:15 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Walworth | 60 min |
| Jul 30, 6:44 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Mellette, Oglala Lakota, Todd | 76 min |
| Jul 30, 6:46 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Dewey, Walworth | 59 min |
| Jul 30, 7:09 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Walworth | 66 min |
| Jul 30, 7:40 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Walworth | 34 min |
| Jul 30, 7:45 PM CDT | Severe Thunderstorm Warning | ABR | Potter, Sully | 60 min |
| Jul 30, 7:45 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Lawrence, Meade | 60 min |
| Jul 30, 7:57 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 48 min |
| Jul 30, 7:57 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Oglala Lakota | 63 min |
| Jul 30, 8:24 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Stanley, Sully | 66 min |
| Jul 30, 8:38 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 67 min |
| Jul 30, 8:45 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 60 min |
| Jul 30, 9:26 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Custer, Fall River, Jackson, Oglala Lakota, Pennington | 94 min |
| Jul 30, 9:27 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Stanley, Sully | 78 min |
| Jul 30, 10:23 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman, Stanley | 50 min |
| Jul 30, 10:57 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Haakon, Jackson, Mellette, Oglala Lakota, Pennington and 1 more | 78 min |
| Jul 31, 12:07 AM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Mellette, Todd | 53 min |
| Jul 31, 3:37 AM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 53 min |
| Jul 31, 3:56 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 64 min |
| Jul 31, 4:46 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 59 min |
| Jul 31, 5:31 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 59 min |
| Jul 31, 6:23 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 67 min |
| Jul 31, 6:47 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 39 min |
| Jul 31, 7:23 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 43 min |
| Jul 31, 9:02 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding, Perkins | 47 min |
| Jul 31, 9:41 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Haakon, Meade, Pennington, Ziebach | 64 min |
| Jul 31, 9:44 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins, Ziebach | 61 min |
| Jul 31, 11:28 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Meade, Pennington, Ziebach | 62 min |
| Aug 1, 12:05 AM CDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 55 min |
| Aug 1, 12:43 AM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 62 min |
| Aug 1, 1:06 AM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Ziebach | 39 min |
| Aug 1, 2:25 AM CDT | Severe Thunderstorm Warning | ABR | Jones | 50 min |
| Aug 1, 3:15 AM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman | 45 min |
| Aug 1, 3:27 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 17 min |
| Aug 1, 3:52 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Pennington | 23 min |
| Aug 1, 4:08 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 37 min |
| Aug 1, 4:12 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Pennington | 33 min |
| Aug 1, 4:46 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 12 min |
| Aug 1, 7:44 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 42 min |
| Aug 1, 9:02 PM CDT | Severe Thunderstorm Warning | ABR | Brown, McPherson | 43 min |
| Aug 1, 9:43 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 47 min |
| Aug 1, 9:59 PM CDT | Severe Thunderstorm Warning | ABR | Marshall, Roberts | 13 min |
| Aug 1, 10:14 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 46 min |
| Aug 1, 10:33 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Marshall | 42 min |
| Aug 1, 10:57 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Spink | 48 min |
| Aug 1, 11:20 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Day | 55 min |
| Aug 1, 11:54 PM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington, Day, Grant, Roberts | 34 min |
| Aug 2, 7:02 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 73 min |
| Aug 2, 7:13 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Lawrence, Meade | 47 min |
| Aug 2, 7:59 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Lawrence, Meade | 61 min |
| Aug 2, 9:08 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 67 min |
| Aug 3, 5:53 PM CDT | Severe Thunderstorm Warning | UNR | Oglala Lakota | 67 min |
| Aug 3, 7:06 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson | 69 min |
| Aug 3, 8:10 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 50 min |
| Aug 3, 8:23 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Stanley | 37 min |
| Aug 3, 8:26 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 49 min |
| Aug 3, 8:31 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 29 min |
| Aug 3, 8:59 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Jones, Lyman, Stanley | 46 min |
| Aug 3, 10:09 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, McPherson | 66 min |
| Aug 3, 10:35 PM CDT | Severe Thunderstorm Warning | ABR | Brown, McPherson | 40 min |
| Aug 3, 11:16 PM CDT | Severe Thunderstorm Warning | ABR | Brown, McPherson | 44 min |
| Aug 3, 11:58 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Marshall | 32 min |
| Aug 4, 1:04 AM CDT | Severe Thunderstorm Warning | ABR | Jones | 41 min |
| Aug 4, 3:13 AM CDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld, Sanborn | 47 min |
| Aug 4, 4:13 AM CDT | Severe Thunderstorm Warning | FSD | Brookings, Kingsbury, Lake, Miner | 32 min |
| Aug 8, 5:06 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade, Pennington | 54 min |
| Aug 8, 5:51 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 54 min |
| Aug 8, 6:34 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 56 min |
| Aug 8, 6:58 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Pennington | 38 min |
| Aug 8, 7:26 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 41 min |
| Aug 8, 7:30 PM CDT | Severe Thunderstorm Warning | UNR | Fall River, Oglala Lakota | 60 min |
| Aug 8, 7:50 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 55 min |
| Aug 8, 8:24 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Oglala Lakota | 46 min |
| Aug 8, 8:29 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Oglala Lakota, Pennington | 91 min |
| Aug 8, 8:40 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Meade, Pennington, Perkins, Ziebach | 95 min |
| Aug 8, 9:35 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 40 min |
| Aug 8, 10:14 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Hughes, Jones, Lyman, Stanley, Sully | 46 min |
| Aug 8, 11:22 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Walworth | 38 min |
| Aug 9, 6:02 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 58 min |
| Aug 9, 6:36 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 39 min |
| Aug 9, 7:45 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 60 min |
| Aug 9, 8:31 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 29 min |
| Aug 9, 8:40 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 50 min |
| Aug 9, 9:00 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 31 min |
| Aug 9, 9:17 PM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 50 min |
| Aug 9, 10:05 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 70 min |
| Aug 9, 10:09 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 51 min |
| Aug 9, 10:16 PM CDT | Severe Thunderstorm Warning | ABR | Campbell | 44 min |
| Aug 9, 10:39 PM CDT | Severe Thunderstorm Warning | UNR | Perkins, Ziebach | 51 min |
| Aug 9, 10:45 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 60 min |
| Aug 9, 10:53 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, McPherson | 52 min |
| Aug 9, 11:24 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 22 min |
| Aug 9, 11:43 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Dewey, Walworth | 47 min |
| Aug 9, 11:45 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, McPherson | 45 min |
| Aug 10, 12:00 AM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 45 min |
| Aug 10, 12:17 AM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Dewey, Edmunds, Faulk, McPherson and 2 more | 43 min |
| Aug 10, 12:33 AM CDT | Severe Thunderstorm Warning | ABR | McPherson | 42 min |
| Aug 10, 12:53 AM CDT | Severe Thunderstorm Warning | ABR | Campbell, Edmunds, McPherson, Walworth | 67 min |
| Aug 10, 1:19 AM CDT | Severe Thunderstorm Warning | ABR | Campbell, Dewey, Walworth | 41 min |
| Aug 10, 1:34 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, McPherson | 56 min |
| Aug 10, 1:53 AM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Walworth | 40 min |
| Aug 10, 2:05 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds | 40 min |
| Aug 10, 2:18 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Grant, Marshall, Roberts, Spink | 57 min |
| Aug 10, 3:06 AM CDT | Severe Thunderstorm Warning | ABR | Roberts | 54 min |
| Aug 10, 3:50 PM CDT | Severe Thunderstorm Warning | ABR | Day | 40 min |
| Aug 10, 4:03 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Day | 42 min |
| Aug 10, 4:27 PM CDT | Severe Thunderstorm Warning | ABR | Day, Marshall | 48 min |
| Aug 10, 4:33 PM CDT | Severe Thunderstorm Warning | ABR | Day, Marshall | 42 min |
| Aug 10, 4:44 PM CDT | Severe Thunderstorm Warning | ABR | Day, Roberts | 46 min |
| Aug 10, 5:07 PM CDT | Severe Thunderstorm Warning | ABR | Day, Grant, Roberts | 38 min |
| Aug 10, 5:20 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Edmunds, McPherson, Walworth | 11 min |
| Aug 10, 5:44 PM CDT | Severe Thunderstorm Warning | ABR | Day, Grant, Roberts | 32 min |
| Aug 10, 5:47 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 22 min |
| Aug 10, 6:00 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Walworth | 45 min |
| Aug 10, 6:03 PM CDT | Severe Thunderstorm Warning | ABR | Codington, Grant, Roberts | 42 min |
| Aug 10, 6:13 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 23 min |
| Aug 10, 6:30 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Edmunds, McPherson, Walworth | 45 min |
| Aug 10, 6:34 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 17 min |
| Aug 10, 6:39 PM CDT | Severe Thunderstorm Warning | ABR | Grant, Roberts | 37 min |
| Aug 10, 6:49 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Sully | 41 min |
| Aug 10, 6:52 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 38 min |
| Aug 10, 7:03 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Dewey, Walworth | 42 min |
| Aug 10, 7:11 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Jones, Stanley | 39 min |
| Aug 10, 7:14 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Edmunds, McPherson, Walworth | 33 min |
| Aug 10, 7:17 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Mellette | 58 min |
| Aug 10, 7:26 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey, Walworth | 34 min |
| Aug 10, 7:27 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Sully | 35 min |
| Aug 10, 7:41 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Dewey, McPherson, Walworth | 26 min |
| Aug 10, 7:43 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Mellette, Todd | 47 min |
| Aug 10, 8:05 PM CDT | Severe Thunderstorm Warning | ABR | Potter | 18 min |
| Aug 10, 8:07 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Mellette | 23 min |
| Aug 10, 8:10 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Jones, Lyman, Stanley | 35 min |
| Aug 10, 8:22 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, McPherson | 24 min |
| Aug 10, 8:24 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd | 66 min |
| Aug 10, 8:32 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Walworth | 28 min |
| Aug 10, 8:58 PM CDT | Severe Thunderstorm Warning | ABR | Potter, Walworth | 20 min |
| Aug 10, 9:02 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Jones, Lyman, Stanley, Sully | 43 min |
| Aug 10, 9:15 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 49 min |
| Aug 10, 9:22 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds | 38 min |
| Aug 10, 9:36 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds | 39 min |
| Aug 10, 9:57 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Spink | 33 min |
| Aug 10, 10:14 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Spink | 46 min |
| Aug 10, 10:28 PM CDT | Severe Thunderstorm Warning | ABR | Clark, Day, Spink | 24 min |
| Aug 11, 12:00 AM CDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld, Kingsbury, Miner, Sanborn | 45 min |
| Aug 11, 12:02 AM CDT | Severe Thunderstorm Warning | ABR | Clark, Hamlin | 43 min |
| Aug 11, 12:12 AM CDT | Severe Thunderstorm Warning | FSD | Kingsbury | 33 min |
| Aug 11, 12:53 AM CDT | Severe Thunderstorm Warning | FSD | Brookings, Kingsbury, Lake, Miner | 37 min |
| Aug 11, 1:26 AM CDT | Severe Thunderstorm Warning | FSD | Brookings, Lake, McCook, Minnehaha, Moody | 34 min |
| Aug 11, 12:05 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Yankton | 19 min |
| Aug 11, 12:13 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Yankton | 47 min |
| Aug 11, 12:48 PM CDT | Severe Thunderstorm Warning | FSD | Yankton | 42 min |
| Aug 11, 4:45 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Oglala Lakota, Pennington | 45 min |
| Aug 11, 4:57 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 48 min |
| Aug 11, 5:36 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 25 min |
| Aug 11, 6:12 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Mellette | 42 min |
| Aug 11, 6:28 PM CDT | Severe Thunderstorm Warning | ABR | Stanley | 47 min |
| Aug 11, 6:52 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Oglala Lakota | 40 min |
| Aug 11, 7:41 PM CDT | Severe Thunderstorm Warning | UNR | Bennett | 49 min |
| Aug 12, 12:27 AM CDT | Severe Thunderstorm Warning | FSD | Brookings, Moody | 48 min |
| Aug 12, 3:47 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, Turner, Yankton | 28 min |
| Aug 14, 4:29 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 61 min |
| Aug 14, 5:22 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 38 min |
| Aug 14, 5:28 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 62 min |
| Aug 14, 5:45 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Pennington | 75 min |
| Aug 14, 6:21 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 34 min |
| Aug 14, 6:28 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins, Ziebach | 77 min |
| Aug 14, 6:51 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 54 min |
| Aug 14, 6:58 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson | 35 min |
| Aug 14, 7:17 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 32 min |
| Aug 14, 7:51 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Sully | 39 min |
| Aug 14, 8:17 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Hughes, Potter, Stanley, Sully | 58 min |
| Aug 14, 8:32 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 58 min |
| Aug 14, 8:58 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Stanley, Sully | 21 min |
| Aug 14, 9:09 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Lyman, Stanley | 51 min |
| Aug 14, 9:20 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman | 55 min |
| Aug 14, 9:24 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 19 min |
| Aug 14, 9:26 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Hyde, Sully | 49 min |
| Aug 14, 9:44 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hughes, Hyde, Lyman, Stanley | 61 min |
| Aug 14, 9:52 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Oglala Lakota, Pennington | 53 min |
| Aug 14, 10:16 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hughes, Lyman | 59 min |
| Aug 14, 10:36 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hand, Hyde, Spink | 39 min |
| Aug 14, 10:42 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Pennington | 79 min |
| Aug 14, 11:03 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Lyman | 42 min |
| Aug 14, 11:09 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Beadle, Brule, Jerauld, Sanborn | 51 min |
| Aug 14, 11:39 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Mellette | 81 min |
| Aug 14, 11:42 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 78 min |
| Aug 15, 3:25 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 27 min |
| Aug 15, 4:12 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 65 min |
| Aug 15, 4:46 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 22 min |
| Aug 15, 7:29 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Walworth | 25 min |
| Aug 15, 7:47 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Walworth | 38 min |
| Aug 15, 7:55 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson | 65 min |
| Aug 15, 8:50 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson | 55 min |
| Aug 15, 9:25 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Edmunds, McPherson, Walworth | 39 min |
| Aug 16, 6:14 PM CDT | Severe Thunderstorm Warning | ABR | Grant, Roberts | 31 min |
| Aug 16, 6:33 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme | 27 min |
| Aug 16, 6:35 PM CDT | Severe Thunderstorm Warning | ABR | Deuel, Grant | 40 min |
| Aug 16, 6:51 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Yankton | 39 min |
| Aug 16, 7:15 PM CDT | Severe Thunderstorm Warning | ABR | Deuel, Grant | 34 min |
| Aug 16, 8:36 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Lincoln, Turner, Union | 11 min |
| Aug 18, 7:49 PM CDT | Severe Thunderstorm Warning | FSD | Lake, Miner | 41 min |
| Aug 18, 8:14 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Minnehaha | 46 min |
| Aug 18, 8:23 PM CDT | Severe Thunderstorm Warning | FSD | Hanson, Lake, McCook, Miner | 37 min |
| Aug 18, 8:38 PM CDT | Severe Thunderstorm Warning | FSD | Kingsbury, Lake, Miner | 37 min |
| Aug 18, 10:22 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix, Davison, Douglas, Hanson, Hutchinson and 2 more | 38 min |
| Aug 26, 5:16 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 59 min |
| Aug 28, 1:23 AM CDT | Severe Thunderstorm Warning | ABR | Spink | 18 min |
| Aug 28, 2:01 AM CDT | Severe Thunderstorm Warning | ABR | Codington | 16 min |
| Aug 28, 2:15 AM CDT | Severe Thunderstorm Warning | ABR | Codington, Grant | 8 min |
| Aug 28, 2:49 AM CDT | Severe Thunderstorm Warning | ABR | Day | 41 min |
| Aug 28, 3:30 AM CDT | Severe Thunderstorm Warning | ABR | Day, Grant, Roberts | 30 min |
| Aug 28, 3:58 AM CDT | Severe Thunderstorm Warning | ABR | Grant, Roberts | 35 min |
| Aug 28, 6:02 AM CDT | Severe Thunderstorm Warning | ABR | Roberts | 16 min |
| Aug 28, 6:37 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds | 23 min |
| Aug 28, 7:00 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds | 45 min |
| Aug 28, 7:42 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds | 23 min |
| Aug 29, 7:24 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hughes, Hyde, Lyman | 36 min |
| Aug 30, 4:51 PM CDT | Severe Thunderstorm Warning | ABR | Sully | 39 min |
| Aug 30, 6:08 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hughes, Hyde, Lyman | 35 min |
| Aug 30, 6:19 PM CDT | Severe Thunderstorm Warning | ABR | Hyde, Potter, Sully | 41 min |
| Aug 31, 4:21 AM CDT | Severe Thunderstorm Warning | ABR | McPherson | 39 min |
| Aug 31, 5:00 AM CDT | Severe Thunderstorm Warning | ABR | McPherson | 18 min |
| Aug 31, 6:43 AM CDT | Severe Thunderstorm Warning | ABR | Campbell, McPherson | 47 min |
| Sep 3, 8:23 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Oglala Lakota, Pennington | 46 min |
| Sep 4, 3:43 PM CDT | Severe Thunderstorm Warning | UNR | Oglala Lakota | 48 min |
| Sep 4, 4:16 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 74 min |
| Sep 4, 4:22 PM CDT | Severe Thunderstorm Warning | UNR | Bennett | 53 min |
| Sep 4, 4:23 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 53 min |
| Sep 4, 5:00 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 60 min |
| Sep 4, 5:27 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Stanley | 48 min |
| Sep 4, 5:56 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd | 64 min |
| Sep 4, 6:00 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Stanley, Sully | 45 min |
| Sep 4, 6:00 PM CDT | Severe Thunderstorm Warning | UNR | Fall River, Oglala Lakota | 54 min |
| Sep 4, 6:08 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 39 min |
| Sep 4, 6:38 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman | 52 min |
| Sep 4, 6:40 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Oglala Lakota | 65 min |
| Sep 4, 7:13 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hand, Hughes, Hyde, Lyman | 47 min |
| Sep 4, 7:31 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Mellette, Todd | 74 min |
| Sep 4, 7:54 PM CDT | Severe Thunderstorm Warning | ABR | Campbell | 36 min |
| Sep 4, 8:28 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 77 min |
| Sep 4, 8:29 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman, Stanley | 61 min |
| Sep 4, 9:05 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman, Stanley | 25 min |
| Sep 4, 9:22 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hand, Hughes, Hyde, Jones, Lyman and 1 more | 53 min |
| Sep 4, 9:41 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 34 min |
| Sep 4, 9:49 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 56 min |
| Sep 5, 12:03 AM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Minnehaha, Moody | 42 min |
| Sep 5, 12:47 AM CDT | Severe Thunderstorm Warning | FSD | Clay, Lincoln, Turner, Union, Yankton | 43 min |
| Sep 5, 1:27 AM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Union | 48 min |
| Sep 5, 3:41 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 64 min |
| Sep 5, 4:32 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 58 min |
| Sep 5, 5:14 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Meade, Perkins | 62 min |
| Sep 5, 5:37 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Lawrence, Meade | 68 min |
| Sep 7, 6:42 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Spink | 48 min |
| Sep 7, 7:12 PM CDT | Severe Thunderstorm Warning | ABR | Spink | 33 min |
| Sep 8, 7:54 PM CDT | Severe Thunderstorm Warning | UNR | Todd, Tripp | 66 min |
| Sep 8, 8:07 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Tripp | 31 min |
| Sep 8, 8:13 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Lyman | 31 min |
| Sep 9, 1:27 AM CDT | Severe Thunderstorm Warning | FSD | Beadle | 33 min |
| Sep 9, 5:16 AM CDT | Severe Thunderstorm Warning | FSD | Hutchinson | 29 min |
| Sep 9, 5:41 AM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, Turner | 34 min |
| Sep 9, 7:43 AM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Hutchinson, Yankton | 32 min |
| Sep 23, 5:51 PM CDT | Severe Thunderstorm Warning | UNR | Fall River, Oglala Lakota | 39 min |
| Sep 23, 6:14 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 35 min |
| Sep 23, 6:36 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 39 min |
| Sep 23, 6:53 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 52 min |
| Sep 23, 7:36 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 39 min |
| Sep 23, 8:02 PM CDT | Severe Thunderstorm Warning | UNR | Oglala Lakota, Pennington | 43 min |
| Sep 23, 8:09 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 51 min |
| Sep 23, 8:37 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 38 min |
| Oct 3, 4:03 PM CDT | Severe Thunderstorm Warning | UNR | Fall River, Oglala Lakota | 42 min |
| Oct 3, 4:44 PM CDT | Severe Thunderstorm Warning | UNR | Oglala Lakota | 31 min |
| Oct 3, 5:50 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Pennington | 40 min |
| Oct 3, 5:53 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 52 min |
| Oct 3, 5:59 PM CDT | Severe Thunderstorm Warning | UNR | Bennett | 46 min |
| Oct 3, 6:09 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 51 min |
| Oct 3, 6:33 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 57 min |
| Oct 3, 6:34 PM CDT | Severe Thunderstorm Warning | UNR | Bennett | 43 min |
| Oct 3, 6:37 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 71 min |
| Oct 3, 6:40 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Mellette, Todd | 53 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pennington County103
- Meade County66
- Custer County55
- Stanley County52
- Dewey County50
- Haakon County47
- Perkins County45
- Oglala Lakota County44
- Corson County42
- Jackson County42
- Jones County39
- Campbell County38
- Hughes County38
- Butte County38
- McPherson County38
- Walworth County37
- Ziebach County37
- Lyman County34
- Brown County34
- Edmunds County34
- Mellette County32
- Fall River County31
- Harding County31
- Lawrence County30
- Sully County29
- Bennett County28
- Todd County27
- Roberts County26
- Potter County25
- Day County24
- Spink County23
- Hyde County20
- Brookings County19
- Grant County19
- Charles Mix County16
- Hand County16
- Bon Homme County16
- Yankton County16
- Turner County16
- Lake County16
26 more counties
- Beadle County15
- Tripp County15
- Faulk County15
- Hutchinson County13
- Kingsbury County13
- Buffalo County13
- Gregory County12
- Deuel County12
- Lincoln County12
- Union County11
- Sanborn County11
- Jerauld County11
- McCook County11
- Marshall County11
- Miner County9
- Codington County9
- Clay County9
- Brule County8
- Douglas County8
- Hamlin County8
- Moody County8
- Clark County8
- Minnehaha County7
- Aurora County6
- Davison County3
- Hanson County3
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20152017
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.