Alert archive / South Dakota / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in South Dakota, 2011
747 severe thunderstorm warnings in 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 2011. Tap one for its archive.
- Severe Thunderstorm Warnings
- 747
- Busiest month
- July239 severe thunderstorm warnings
- Busiest day
- June 26, 201143 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.
541 of 755 severe thunderstorm warnings covering South Dakota in 2011 had a qualifying storm report inside them; 811 of 927 hail, wind and damage reports fell inside a warning, on average 23 minutes after it went out.
South Dakota, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Severe thunderstorm warnings | 755 | 541 | 28% | 927 | 87% | 23 min |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Rapid City, SD: severe thunderstorm warnings | 426 | 315 | 26% | 626 | 88% | 25 min |
| NWS Sioux Falls, SD: severe thunderstorm warnings | 274 | 187 | 32% | 337 | 89% | 19 min |
| NWS Aberdeen, SD: severe thunderstorm warnings | 224 | 147 | 34% | 242 | 85% | 21 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 |
|---|---|---|---|---|
| Mar 20, 2:05 AM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 25 min |
| Mar 20, 2:28 AM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 32 min |
| Mar 21, 10:35 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hand | 25 min |
| Mar 21, 10:42 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld | 33 min |
| Mar 21, 10:51 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Sanborn | 24 min |
| Mar 21, 11:25 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 35 min |
| Mar 21, 11:50 PM CDT | Severe Thunderstorm Warning | FSD | Kingsbury | 25 min |
| Apr 9, 7:50 AM CDT | Severe Thunderstorm Warning | FSD | Moody | 40 min |
| Apr 9, 6:44 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix, Douglas, Hutchinson | 46 min |
| Apr 9, 7:16 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson | 29 min |
| Apr 9, 7:38 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Yankton | 26 min |
| Apr 9, 7:42 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson, Hutchinson | 33 min |
| Apr 9, 8:11 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Miner, Minnehaha | 34 min |
| Apr 9, 8:19 PM CDT | Severe Thunderstorm Warning | FSD | Union | 41 min |
| Apr 9, 8:45 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Minnehaha, Moody | 45 min |
| Apr 9, 8:55 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Lake, Moody | 50 min |
| Apr 9, 9:15 PM CDT | Severe Thunderstorm Warning | FSD | Union | 30 min |
| Apr 9, 9:17 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha, Moody | 43 min |
| Apr 9, 9:17 PM CDT | Severe Thunderstorm Warning | FSD | Union | 43 min |
| Apr 21, 8:43 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 27 min |
| May 8, 7:32 AM CDT | Severe Thunderstorm Warning | FSD | Kingsbury, Miner | 28 min |
| May 8, 7:58 AM CDT | Severe Thunderstorm Warning | FSD | Kingsbury, Lake, Miner | 47 min |
| May 8, 5:01 PM CDT | Severe Thunderstorm Warning | ABR | Codington, Grant, Roberts | 24 min |
| May 8, 5:31 PM CDT | Severe Thunderstorm Warning | ABR | Marshall, Roberts | 29 min |
| May 8, 8:20 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 45 min |
| May 8, 8:43 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 47 min |
| May 8, 10:15 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Sanborn | 45 min |
| May 8, 10:50 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld | 40 min |
| May 8, 11:53 PM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington, Day | 37 min |
| May 9, 12:26 AM CDT | Severe Thunderstorm Warning | ABR | Day, Grant, Roberts | 36 min |
| May 9, 1:05 AM CDT | Severe Thunderstorm Warning | ABR | Grant, Roberts | 40 min |
| May 9, 3:05 AM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand | 25 min |
| May 9, 7:58 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 62 min |
| May 9, 8:21 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 54 min |
| May 9, 8:34 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins | 56 min |
| May 9, 8:51 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Pennington | 42 min |
| May 9, 8:56 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 64 min |
| May 9, 9:13 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Meade, Pennington, Ziebach | 62 min |
| May 9, 9:24 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins | 66 min |
| May 9, 9:35 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 46 min |
| May 9, 9:57 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 78 min |
| May 9, 10:13 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Ziebach | 62 min |
| May 9, 10:36 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson | 69 min |
| May 9, 10:44 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 61 min |
| May 9, 11:10 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 65 min |
| May 9, 11:24 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Marshall | 51 min |
| May 9, 11:30 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 45 min |
| May 9, 11:35 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 55 min |
| May 9, 11:41 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 38 min |
| May 9, 11:57 PM CDT | Severe Thunderstorm Warning | ABR | Marshall | 21 min |
| May 10, 12:03 AM CDT | Severe Thunderstorm Warning | UNR | Haakon | 42 min |
| May 10, 12:09 AM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 51 min |
| May 10, 12:14 AM CDT | Severe Thunderstorm Warning | ABR | Corson | 46 min |
| May 10, 12:45 AM CDT | Severe Thunderstorm Warning | UNR | Haakon, Meade, Perkins, Ziebach | 60 min |
| May 10, 1:18 AM CDT | Severe Thunderstorm Warning | ABR | Corson | 42 min |
| May 11, 4:51 PM CDT | Severe Thunderstorm Warning | FSD | Union | 39 min |
| May 11, 4:55 PM CDT | Severe Thunderstorm Warning | FSD | Union | 50 min |
| May 11, 5:37 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Union, Yankton | 38 min |
| May 11, 5:42 PM CDT | Severe Thunderstorm Warning | FSD | Union | 48 min |
| May 11, 5:48 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 42 min |
| May 11, 6:06 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 24 min |
| May 11, 6:29 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Turner, Union | 31 min |
| May 11, 6:49 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha, Turner | 41 min |
| May 11, 7:14 PM CDT | Severe Thunderstorm Warning | FSD | Lake, Minnehaha, Moody | 31 min |
| May 21, 3:14 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 25 min |
| May 21, 5:38 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Hutchinson | 21 min |
| May 21, 5:41 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Spink | 64 min |
| May 21, 5:52 PM CDT | Severe Thunderstorm Warning | ABR | Spink | 8 min |
| May 21, 5:53 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson, Miner, Sanborn | 37 min |
| May 21, 6:23 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Clark, Codington, Day, Spink | 37 min |
| May 21, 6:47 PM CDT | Severe Thunderstorm Warning | FSD | Union | 28 min |
| May 21, 7:05 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Turner | 25 min |
| May 21, 7:28 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Lincoln, Turner | 32 min |
| May 21, 7:38 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Union | 37 min |
| May 21, 7:49 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Union | 26 min |
| May 21, 7:52 PM CDT | Severe Thunderstorm Warning | ABR | Marshall | 38 min |
| May 21, 8:16 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Minnehaha | 29 min |
| May 21, 8:39 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha, Moody | 36 min |
| May 21, 9:24 PM CDT | Severe Thunderstorm Warning | ABR | Roberts | 36 min |
| May 26, 5:17 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 43 min |
| May 29, 11:03 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix | 42 min |
| May 29, 11:30 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, Turner | 45 min |
| May 29, 11:39 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix, Douglas, Gregory, Hutchinson, Turner and 1 more | 36 min |
| May 30, 12:14 AM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix, Douglas, Hutchinson, Turner, Yankton | 31 min |
| May 30, 12:53 AM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson, Miner, Sanborn | 37 min |
| May 30, 1:46 AM CDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld | 44 min |
| May 30, 2:39 AM CDT | Severe Thunderstorm Warning | FSD | Beadle | 36 min |
| May 30, 3:13 AM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington, Spink | 37 min |
| May 30, 3:36 AM CDT | Severe Thunderstorm Warning | FSD | Brookings | 39 min |
| May 30, 4:38 AM CDT | Severe Thunderstorm Warning | ABR | Day, Grant, Marshall, Roberts | 20 min |
| May 30, 5:08 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 37 min |
| May 30, 5:34 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hand | 26 min |
| May 30, 5:37 PM CDT | Severe Thunderstorm Warning | FSD | Jerauld | 23 min |
| May 30, 6:00 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand, Spink | 14 min |
| May 30, 6:38 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Gregory | 52 min |
| May 30, 6:40 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Clark, Day, Spink | 35 min |
| May 30, 6:51 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson, Miner, Sanborn | 39 min |
| May 30, 7:05 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix, Douglas, Hutchinson | 40 min |
| May 30, 7:15 PM CDT | Severe Thunderstorm Warning | ABR | Day, Marshall | 30 min |
| May 30, 7:29 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Charles Mix, Hutchinson | 46 min |
| May 30, 7:35 PM CDT | Severe Thunderstorm Warning | ABR | Day, Marshall, Roberts | 25 min |
| May 30, 7:58 PM CDT | Severe Thunderstorm Warning | ABR | Marshall, Roberts | 35 min |
| May 30, 8:23 PM CDT | Severe Thunderstorm Warning | ABR | Codington, Hamlin | 21 min |
| May 30, 8:46 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Lake, Moody | 44 min |
| Jun 1, 5:46 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 29 min |
| Jun 1, 5:46 PM CDT | Severe Thunderstorm Warning | FSD | Union | 29 min |
| Jun 2, 7:42 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Pennington | 63 min |
| Jun 2, 7:53 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 52 min |
| Jun 2, 8:17 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson | 58 min |
| Jun 2, 8:38 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Pennington | 82 min |
| Jun 2, 9:33 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Mellette | 65 min |
| Jun 2, 9:46 PM CDT | Severe Thunderstorm Warning | UNR | Perkins, Ziebach | 39 min |
| Jun 2, 10:08 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Hughes, Stanley, Sully | 52 min |
| Jun 2, 10:47 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 43 min |
| Jun 2, 11:03 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Stanley, Sully | 42 min |
| Jun 2, 11:04 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 21 min |
| Jun 2, 11:11 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 29 min |
| Jun 2, 11:35 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 25 min |
| Jun 3, 12:00 AM CDT | Severe Thunderstorm Warning | ABR | Corson | 15 min |
| Jun 3, 12:42 AM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Walworth | 33 min |
| Jun 6, 4:14 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 61 min |
| Jun 6, 4:38 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 37 min |
| Jun 6, 5:08 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 52 min |
| Jun 6, 5:54 PM CDT | Severe Thunderstorm Warning | UNR | Todd, Tripp | 51 min |
| Jun 6, 5:58 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd | 28 min |
| Jun 6, 6:24 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 51 min |
| Jun 6, 7:24 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 36 min |
| Jun 6, 7:43 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 47 min |
| Jun 6, 8:11 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 64 min |
| Jun 6, 9:13 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 49 min |
| Jun 11, 4:13 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 62 min |
| Jun 11, 5:59 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 61 min |
| Jun 11, 6:14 PM CDT | Severe Thunderstorm Warning | UNR | 61 min | |
| Jun 11, 6:51 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Pennington | 54 min |
| Jun 11, 9:34 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 56 min |
| Jun 11, 10:43 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Meade | 42 min |
| Jun 12, 4:01 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 59 min |
| Jun 12, 5:09 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 66 min |
| Jun 12, 5:37 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River, Pennington | 53 min |
| Jun 12, 5:47 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 58 min |
| Jun 12, 6:11 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 64 min |
| Jun 12, 6:19 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 56 min |
| Jun 12, 6:25 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Pennington | 65 min |
| Jun 12, 6:41 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding, Lawrence | 64 min |
| Jun 12, 6:53 PM CDT | Severe Thunderstorm Warning | UNR | Perkins, Ziebach | 67 min |
| Jun 12, 7:44 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding, Perkins | 61 min |
| Jun 12, 8:19 PM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 43 min |
| Jun 12, 8:40 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 65 min |
| Jun 12, 9:01 PM CDT | Severe Thunderstorm Warning | UNR | Bennett | 59 min |
| Jun 12, 9:13 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Jones, Lyman, Stanley | 62 min |
| Jun 12, 9:42 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Dewey, Potter, Sully, Walworth | 45 min |
| Jun 12, 10:39 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Potter, Walworth | 7 min |
| Jun 13, 12:47 AM CDT | Severe Thunderstorm Warning | UNR | Todd | 58 min |
| Jun 13, 1:36 AM CDT | Severe Thunderstorm Warning | UNR | Todd, Tripp | 54 min |
| Jun 13, 1:21 PM CDT | Severe Thunderstorm Warning | FSD | Aurora | 24 min |
| Jun 13, 1:44 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Davison | 31 min |
| Jun 13, 2:11 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Davison | 34 min |
| Jun 13, 3:06 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Hanson, Sanborn | 39 min |
| Jun 13, 5:48 PM CDT | Severe Thunderstorm Warning | ABR | Clark | 27 min |
| Jun 13, 7:47 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 24 min |
| Jun 13, 8:16 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Todd | 27 min |
| Jun 13, 8:23 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade, Pennington | 36 min |
| Jun 13, 9:07 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson | 38 min |
| Jun 13, 10:45 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Pennington | 60 min |
| Jun 14, 1:35 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 55 min |
| Jun 14, 2:29 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 46 min |
| Jun 14, 3:15 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 60 min |
| Jun 14, 3:40 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand | 35 min |
| Jun 14, 3:57 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand | 63 min |
| Jun 14, 4:41 PM CDT | Severe Thunderstorm Warning | ABR | Hand | 51 min |
| Jun 14, 4:44 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 46 min |
| Jun 14, 8:46 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 48 min |
| Jun 16, 5:38 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Todd | 82 min |
| Jun 16, 6:01 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd | 59 min |
| Jun 16, 6:53 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 67 min |
| Jun 16, 7:29 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 61 min |
| Jun 16, 8:09 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 66 min |
| Jun 16, 8:11 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 34 min |
| Jun 16, 8:25 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman, Stanley | 50 min |
| Jun 16, 9:04 PM CDT | Severe Thunderstorm Warning | UNR | Todd, Tripp | 71 min |
| Jun 17, 6:11 PM CDT | Severe Thunderstorm Warning | ABR | Marshall, Roberts | 49 min |
| Jun 17, 6:56 PM CDT | Severe Thunderstorm Warning | ABR | Roberts | 49 min |
| Jun 17, 7:39 PM CDT | Severe Thunderstorm Warning | ABR | Grant, Roberts | 51 min |
| Jun 18, 5:22 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 38 min |
| Jun 18, 5:38 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 52 min |
| Jun 18, 6:09 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 54 min |
| Jun 18, 6:25 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 50 min |
| Jun 18, 6:28 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 47 min |
| Jun 18, 7:15 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 45 min |
| Jun 18, 7:21 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 54 min |
| Jun 18, 7:59 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 61 min |
| Jun 18, 8:29 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 61 min |
| Jun 20, 8:07 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Clay, Turner, Union, Yankton | 38 min |
| Jun 20, 8:33 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Hanson, Hutchinson, McCook, Turner | 27 min |
| Jun 20, 8:58 PM CDT | Severe Thunderstorm Warning | FSD | Hanson, Hutchinson, Lincoln, McCook, Minnehaha, Turner | 32 min |
| Jun 20, 9:12 PM CDT | Severe Thunderstorm Warning | FSD | Union | 33 min |
| Jun 20, 9:34 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 41 min |
| Jun 20, 11:13 PM CDT | Severe Thunderstorm Warning | FSD | Moody | 47 min |
| Jun 24, 4:26 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 64 min |
| Jun 24, 5:05 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Meade | 43 min |
| Jun 24, 5:21 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 54 min |
| Jun 24, 5:43 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 21 min |
| Jun 24, 6:37 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Lawrence, Meade | 53 min |
| Jun 24, 7:19 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade, Pennington | 56 min |
| Jun 24, 7:30 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Lawrence, Meade | 60 min |
| Jun 24, 7:43 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 32 min |
| Jun 24, 7:54 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding, Meade, Perkins, Ziebach | 96 min |
| Jun 24, 8:11 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River, Meade, Pennington | 64 min |
| Jun 24, 8:32 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Meade, Pennington, Ziebach | 88 min |
| Jun 24, 9:05 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Jackson, Pennington | 24 min |
| Jun 24, 9:54 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Mellette | 66 min |
| Jun 24, 10:14 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 61 min |
| Jun 24, 10:42 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman | 45 min |
| Jun 25, 7:33 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 57 min |
| Jun 25, 7:53 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 42 min |
| Jun 25, 8:00 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 30 min |
| Jun 25, 8:26 PM CDT | Severe Thunderstorm Warning | UNR | 35 min | |
| Jun 25, 8:29 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 46 min |
| Jun 25, 8:58 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 62 min |
| Jun 25, 9:02 PM CDT | Severe Thunderstorm Warning | UNR | Bennett | 28 min |
| Jun 25, 9:07 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 53 min |
| Jun 25, 9:14 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade, Pennington | 61 min |
| Jun 25, 9:51 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Meade, Pennington | 54 min |
| Jun 25, 10:13 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Meade | 62 min |
| Jun 25, 11:02 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 40 min |
| Jun 25, 11:23 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Lawrence, Meade | 31 min |
| Jun 25, 11:32 PM CDT | Severe Thunderstorm Warning | ABR | Stanley | 28 min |
| Jun 25, 11:41 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Jones, Lyman, Stanley | 49 min |
| Jun 25, 11:48 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Hughes, Hyde, Lyman | 42 min |
| Jun 26, 12:11 AM CDT | Severe Thunderstorm Warning | ABR | Hughes, Stanley, Sully | 32 min |
| Jun 26, 12:46 AM CDT | Severe Thunderstorm Warning | ABR | Hand, Hyde, Sully | 44 min |
| Jun 26, 1:46 AM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand, Hyde, Spink | 29 min |
| Jun 26, 2:53 AM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington, Day, Grant, Spink | 27 min |
| Jun 26, 3:10 AM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 41 min |
| Jun 26, 4:07 AM CDT | Severe Thunderstorm Warning | UNR | Harding | 68 min |
| Jun 26, 4:58 AM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 62 min |
| Jun 26, 5:15 AM CDT | Severe Thunderstorm Warning | UNR | Bennett | 48 min |
| Jun 26, 5:37 AM CDT | Severe Thunderstorm Warning | UNR | Perkins | 24 min |
| Jun 26, 8:19 AM CDT | Severe Thunderstorm Warning | UNR | Harding | 56 min |
| Jun 26, 9:46 AM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Pennington | 59 min |
| Jun 26, 11:24 AM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 66 min |
| Jun 26, 11:53 AM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 19 min |
| Jun 26, 12:09 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 43 min |
| Jun 26, 1:19 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Meade, Pennington | 56 min |
| Jun 26, 1:55 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 65 min |
| Jun 26, 2:54 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 32 min |
| Jun 26, 3:15 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 41 min |
| Jun 26, 3:22 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 53 min |
| Jun 26, 3:37 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 53 min |
| Jun 26, 4:18 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 57 min |
| Jun 26, 4:22 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Pennington | 53 min |
| Jun 26, 4:37 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 53 min |
| Jun 26, 4:51 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Pennington, Ziebach | 41 min |
| Jun 26, 5:12 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Pennington | 63 min |
| Jun 26, 5:32 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 58 min |
| Jun 26, 6:46 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 59 min |
| Jun 30, 5:16 PM CDT | Severe Thunderstorm Warning | UNR | 59 min | |
| Jun 30, 5:53 PM CDT | Severe Thunderstorm Warning | UNR | 37 min | |
| Jun 30, 8:31 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Todd | 59 min |
| Jun 30, 9:14 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 61 min |
| Jun 30, 9:46 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 29 min |
| Jun 30, 9:53 PM CDT | Severe Thunderstorm Warning | UNR | Mellette | 52 min |
| Jun 30, 9:58 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Jones, Lyman, Stanley | 62 min |
| Jun 30, 10:03 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 57 min |
| Jun 30, 10:07 PM CDT | Severe Thunderstorm Warning | FSD | Brule, Charles Mix, Gregory | 38 min |
| Jun 30, 10:09 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Tripp | 41 min |
| Jun 30, 10:12 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Lyman | 48 min |
| Jun 30, 10:46 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Dewey, Hand, Hughes, Hyde, Lyman and 2 more | 44 min |
| Jun 30, 10:47 PM CDT | Severe Thunderstorm Warning | FSD | Brule | 43 min |
| Jun 30, 11:38 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix, Douglas, Gregory | 37 min |
| Jul 1, 10:33 AM CDT | Severe Thunderstorm Warning | UNR | Tripp | 51 min |
| Jul 1, 12:10 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld | 35 min |
| Jul 1, 12:40 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 35 min |
| Jul 1, 1:11 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld | 49 min |
| Jul 1, 1:31 PM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington, Hamlin, Spink | 44 min |
| Jul 1, 2:14 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Miner | 46 min |
| Jul 1, 2:18 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, McCook, Turner | 42 min |
| Jul 1, 2:42 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Minnehaha, Moody | 63 min |
| Jul 1, 3:13 PM CDT | Severe Thunderstorm Warning | FSD | Brookings, Minnehaha, Moody | 62 min |
| Jul 2, 6:59 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 61 min |
| Jul 2, 7:05 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 55 min |
| Jul 2, 7:37 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 53 min |
| Jul 2, 7:43 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 62 min |
| Jul 2, 7:55 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 50 min |
| Jul 2, 7:59 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 61 min |
| Jul 2, 8:02 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 43 min |
| Jul 2, 8:27 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River, Jackson, Pennington | 63 min |
| Jul 4, 7:46 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 33 min |
| Jul 4, 9:10 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, McPherson | 50 min |
| Jul 4, 9:35 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, McPherson | 55 min |
| Jul 4, 9:39 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Mellette, Todd | 81 min |
| Jul 4, 10:12 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Stanley, Sully | 63 min |
| Jul 4, 10:17 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 88 min |
| Jul 4, 10:23 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, McPherson | 67 min |
| Jul 4, 10:57 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Stanley, Sully | 63 min |
| Jul 4, 11:02 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 58 min |
| Jul 4, 11:06 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman | 54 min |
| Jul 4, 11:17 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Spink | 45 min |
| Jul 4, 11:58 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Faulk, Hand, Hyde, Potter, Sully and 1 more | 62 min |
| Jul 5, 12:49 AM CDT | Severe Thunderstorm Warning | ABR | Grant, Roberts | 41 min |
| Jul 5, 12:50 AM CDT | Severe Thunderstorm Warning | ABR | Brown | 55 min |
| Jul 5, 12:57 AM CDT | Severe Thunderstorm Warning | ABR | Grant, Roberts | 40 min |
| Jul 5, 1:35 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Edmunds, Faulk, Spink | 45 min |
| Jul 5, 2:30 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Pennington | 60 min |
| Jul 5, 3:27 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 21 min |
| Jul 6, 1:42 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 38 min |
| Jul 6, 6:20 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 55 min |
| Jul 7, 3:51 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 54 min |
| Jul 8, 10:29 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman, Stanley | 31 min |
| Jul 8, 10:49 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Stanley, Sully | 26 min |
| Jul 8, 10:54 PM CDT | Severe Thunderstorm Warning | ABR | Brown, McPherson | 51 min |
| Jul 8, 11:24 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman, Stanley | 35 min |
| Jul 8, 11:35 PM CDT | Severe Thunderstorm Warning | ABR | Brown, McPherson, Marshall | 40 min |
| Jul 9, 12:31 AM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 59 min |
| Jul 9, 1:12 AM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade, Pennington | 43 min |
| Jul 9, 8:18 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hyde, Potter, Sully | 42 min |
| Jul 9, 8:53 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Faulk, Potter, Walworth | 52 min |
| Jul 9, 9:30 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, McPherson, Walworth | 30 min |
| Jul 9, 9:51 PM CDT | Severe Thunderstorm Warning | ABR | Potter, Walworth | 39 min |
| Jul 9, 9:57 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, McPherson | 48 min |
| Jul 9, 10:34 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, McPherson | 10 min |
| Jul 9, 10:43 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hyde, Potter | 41 min |
| Jul 9, 11:58 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Miner | 47 min |
| Jul 10, 12:19 AM CDT | Severe Thunderstorm Warning | FSD | McCook | 26 min |
| Jul 10, 3:30 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, McPherson | 45 min |
| Jul 10, 3:37 PM CDT | Severe Thunderstorm Warning | ABR | Campbell | 23 min |
| Jul 10, 4:06 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, McPherson | 24 min |
| Jul 10, 4:12 PM CDT | Severe Thunderstorm Warning | ABR | Brown, McPherson, Marshall | 63 min |
| Jul 10, 4:32 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, McPherson | 43 min |
| Jul 10, 4:46 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Dewey, Walworth | 44 min |
| Jul 10, 5:08 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Edmunds, Marshall, Roberts | 52 min |
| Jul 10, 5:47 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Grant, Marshall, Roberts | 58 min |
| Jul 10, 6:42 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 33 min |
| Jul 10, 6:47 PM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington, Day, Deuel, Grant, Roberts | 58 min |
| Jul 10, 11:23 PM CDT | Severe Thunderstorm Warning | FSD | Moody | 37 min |
| Jul 11, 12:21 AM CDT | Severe Thunderstorm Warning | FSD | Clay, Yankton | 39 min |
| Jul 11, 12:32 AM CDT | Severe Thunderstorm Warning | FSD | Union | 43 min |
| Jul 11, 1:04 AM CDT | Severe Thunderstorm Warning | FSD | Union | 41 min |
| Jul 11, 1:20 AM CDT | Severe Thunderstorm Warning | FSD | Clay, Union, Yankton | 40 min |
| Jul 11, 5:14 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 61 min |
| Jul 14, 6:08 PM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 50 min |
| Jul 14, 6:18 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 27 min |
| Jul 14, 6:51 PM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 54 min |
| Jul 14, 7:46 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 22 min |
| Jul 14, 8:12 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 63 min |
| Jul 14, 8:54 PM CDT | Severe Thunderstorm Warning | UNR | Perkins, Ziebach | 81 min |
| Jul 14, 9:54 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 51 min |
| Jul 14, 10:43 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 45 min |
| Jul 15, 12:33 AM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson | 42 min |
| Jul 17, 9:09 PM CDT | Severe Thunderstorm Warning | ABR | Roberts | 22 min |
| Jul 18, 3:25 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 65 min |
| Jul 18, 4:25 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 65 min |
| Jul 21, 7:44 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Pennington | 46 min |
| Jul 21, 7:55 PM CDT | Severe Thunderstorm Warning | UNR | Bennett | 27 min |
| Jul 21, 8:20 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 40 min |
| Jul 21, 8:46 PM CDT | Severe Thunderstorm Warning | UNR | Jackson | 29 min |
| Jul 21, 8:49 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 26 min |
| Jul 21, 8:55 PM CDT | Severe Thunderstorm Warning | UNR | Haakon | 65 min |
| Jul 21, 9:33 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Jones, Stanley, Sully | 42 min |
| Jul 21, 10:13 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 32 min |
| Jul 21, 10:17 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Sully | 43 min |
| Jul 22, 5:10 AM CDT | Severe Thunderstorm Warning | ABR | Jones | 37 min |
| Jul 22, 5:45 AM CDT | Severe Thunderstorm Warning | ABR | Jones, Lyman | 30 min |
| Jul 22, 7:07 AM CDT | Severe Thunderstorm Warning | FSD | Jerauld, Sanborn | 36 min |
| Jul 22, 5:25 PM CDT | Severe Thunderstorm Warning | ABR | Codington, Grant, Roberts | 50 min |
| Jul 22, 6:06 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 54 min |
| Jul 22, 7:10 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 65 min |
| Jul 22, 7:35 PM CDT | Severe Thunderstorm Warning | ABR | Codington, Deuel, Grant | 40 min |
| Jul 22, 8:08 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 82 min |
| Jul 22, 8:14 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 61 min |
| Jul 22, 8:58 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd | 42 min |
| Jul 22, 9:23 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 67 min |
| Jul 22, 9:33 PM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 57 min |
| Jul 22, 10:21 PM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 54 min |
| Jul 22, 10:38 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 37 min |
| Jul 22, 10:45 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 32 min |
| Jul 22, 10:50 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 55 min |
| Jul 22, 10:58 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 47 min |
| Jul 22, 11:08 PM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 67 min |
| Jul 22, 11:38 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 52 min |
| Jul 22, 11:45 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 45 min |
| Jul 23, 12:10 AM CDT | Severe Thunderstorm Warning | ABR | Campbell, Corson, Edmunds, McPherson, Walworth | 65 min |
| Jul 23, 12:10 AM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 65 min |
| Jul 23, 12:48 AM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey, Edmunds, Faulk, Potter, Walworth | 57 min |
| Jul 23, 1:06 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, Faulk, McPherson, Spink | 54 min |
| Jul 23, 1:11 AM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 64 min |
| Jul 23, 2:00 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Marshall | 45 min |
| Jul 23, 2:42 AM CDT | Severe Thunderstorm Warning | ABR | Day, Marshall, Roberts | 48 min |
| Jul 25, 3:28 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 62 min |
| Jul 25, 4:08 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 67 min |
| Jul 25, 4:24 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 22 min |
| Jul 25, 4:59 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Lawrence | 61 min |
| Jul 25, 5:00 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 60 min |
| Jul 25, 5:18 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 46 min |
| Jul 25, 5:23 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 67 min |
| Jul 25, 5:43 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 62 min |
| Jul 25, 5:44 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 61 min |
| Jul 25, 6:00 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Pennington | 60 min |
| Jul 25, 6:10 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Pennington | 65 min |
| Jul 25, 6:16 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding, Meade, Perkins | 29 min |
| Jul 25, 6:33 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Haakon, Jackson, Pennington | 57 min |
| Jul 25, 6:38 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding, Meade, Perkins | 67 min |
| Jul 25, 6:52 PM CDT | Severe Thunderstorm Warning | UNR | Bennett | 53 min |
| Jul 25, 7:15 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Haakon, Jackson, Mellette, Todd, Tripp | 60 min |
| Jul 25, 7:24 PM CDT | Severe Thunderstorm Warning | FSD | Moody | 36 min |
| Jul 25, 7:38 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson | 65 min |
| Jul 25, 7:39 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins, Ziebach | 66 min |
| Jul 25, 7:53 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha, Moody | 37 min |
| Jul 25, 8:15 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Mellette, Todd, Tripp | 28 min |
| Jul 25, 8:23 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 37 min |
| Jul 25, 8:53 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha | 37 min |
| Jul 25, 9:04 PM CDT | Severe Thunderstorm Warning | FSD | Moody | 41 min |
| Jul 25, 10:10 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Sully | 50 min |
| Jul 25, 10:29 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Turner | 31 min |
| Jul 25, 10:54 PM CDT | Severe Thunderstorm Warning | FSD | Turner | 36 min |
| Jul 26, 2:53 AM CDT | Severe Thunderstorm Warning | ABR | Codington, Deuel | 15 min |
| Jul 26, 5:28 PM CDT | Severe Thunderstorm Warning | ABR | Potter, Sully | 47 min |
| Jul 26, 5:34 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Sully | 41 min |
| Jul 26, 6:12 PM CDT | Severe Thunderstorm Warning | ABR | Hyde, Potter, Sully | 48 min |
| Jul 26, 6:19 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Hyde, Sully | 41 min |
| Jul 26, 6:25 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 65 min |
| Jul 26, 6:43 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Potter, Walworth | 47 min |
| Jul 26, 7:00 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 47 min |
| Jul 26, 7:28 PM CDT | Severe Thunderstorm Warning | ABR | Buffalo, Faulk, Hand, Hyde, Lyman, Spink | 47 min |
| Jul 26, 7:34 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Marshall | 56 min |
| Jul 26, 7:54 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, Marshall | 66 min |
| Jul 26, 8:07 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld | 38 min |
| Jul 26, 8:25 PM CDT | Severe Thunderstorm Warning | ABR | Day, Marshall, Roberts | 65 min |
| Jul 26, 8:41 PM CDT | Severe Thunderstorm Warning | FSD | Beadle | 49 min |
| Jul 26, 8:42 PM CDT | Severe Thunderstorm Warning | ABR | Day, Marshall, Roberts | 48 min |
| Jul 26, 9:04 PM CDT | Severe Thunderstorm Warning | ABR | Brown, Day, Marshall | 41 min |
| Jul 26, 9:11 PM CDT | Severe Thunderstorm Warning | ABR | Clark, Hamlin, Spink | 49 min |
| Jul 26, 9:20 PM CDT | Severe Thunderstorm Warning | ABR | Day, Grant, Marshall, Roberts | 40 min |
| Jul 26, 9:23 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Jerauld, Kingsbury, Miner, Sanborn | 36 min |
| Jul 26, 9:42 PM CDT | Severe Thunderstorm Warning | ABR | Day, Marshall | 33 min |
| Jul 26, 9:56 PM CDT | Severe Thunderstorm Warning | ABR | Day, Grant, Roberts | 64 min |
| Jul 26, 10:03 PM CDT | Severe Thunderstorm Warning | FSD | Jerauld | 42 min |
| Jul 26, 10:18 PM CDT | Severe Thunderstorm Warning | FSD | Aurora, Jerauld, Miner, Sanborn | 42 min |
| Jul 26, 10:54 PM CDT | Severe Thunderstorm Warning | FSD | Beadle, Brookings, Kingsbury, Lake, Miner, Sanborn | 40 min |
| Jul 26, 11:42 PM CDT | Severe Thunderstorm Warning | FSD | Lake, McCook, Minnehaha | 33 min |
| Jul 27, 12:16 AM CDT | Severe Thunderstorm Warning | FSD | McCook, Minnehaha | 44 min |
| Jul 27, 6:13 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Pennington | 62 min |
| Jul 27, 6:32 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 58 min |
| Jul 27, 7:06 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 54 min |
| Jul 27, 7:27 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Fall River, Meade, Pennington | 63 min |
| Jul 27, 8:30 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Haakon, Jackson, Meade, Pennington, Ziebach | 60 min |
| Jul 27, 9:06 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson | 54 min |
| Jul 27, 9:28 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 62 min |
| Jul 27, 9:55 PM CDT | Severe Thunderstorm Warning | UNR | Jackson, Mellette | 65 min |
| Jul 27, 9:58 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 47 min |
| Jul 27, 10:27 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd | 63 min |
| Jul 27, 10:44 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 46 min |
| Jul 27, 10:59 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 61 min |
| Jul 27, 11:52 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 38 min |
| Jul 27, 11:57 PM CDT | Severe Thunderstorm Warning | FSD | Gregory | 33 min |
| Jul 28, 12:18 AM CDT | Severe Thunderstorm Warning | FSD | Brule, Charles Mix | 42 min |
| Jul 28, 12:30 AM CDT | Severe Thunderstorm Warning | ABR | Lyman | 18 min |
| Jul 28, 12:36 AM CDT | Severe Thunderstorm Warning | FSD | Aurora, Brule, Charles Mix, Gregory | 39 min |
| Jul 28, 3:07 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 53 min |
| Jul 28, 3:13 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Pennington | 42 min |
| Jul 28, 3:18 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 57 min |
| Jul 28, 3:24 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 66 min |
| Jul 28, 3:56 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 64 min |
| Jul 28, 4:05 PM CDT | Severe Thunderstorm Warning | UNR | Perkins, Ziebach | 55 min |
| Jul 28, 4:09 PM CDT | Severe Thunderstorm Warning | UNR | Harding | 66 min |
| Jul 28, 4:27 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 63 min |
| Jul 28, 4:41 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 49 min |
| Jul 28, 4:45 PM CDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 60 min |
| Jul 28, 4:49 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Lawrence | 24 min |
| Jul 28, 4:58 PM CDT | Severe Thunderstorm Warning | UNR | Perkins, Ziebach | 62 min |
| Jul 28, 5:29 PM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 61 min |
| Jul 28, 5:32 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 58 min |
| Jul 28, 5:58 PM CDT | Severe Thunderstorm Warning | UNR | Perkins, Ziebach | 62 min |
| Jul 28, 6:13 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 62 min |
| Jul 28, 7:03 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Stanley, Sully | 57 min |
| Jul 28, 7:44 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Hughes, Stanley, Sully | 40 min |
| Jul 29, 5:07 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Meade | 68 min |
| Jul 29, 5:22 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 53 min |
| Jul 29, 5:37 PM CDT | Severe Thunderstorm Warning | UNR | Butte | 68 min |
| Jul 29, 5:55 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 37 min |
| Jul 29, 6:18 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 57 min |
| Jul 29, 6:49 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 56 min |
| Jul 29, 6:54 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 51 min |
| Jul 29, 7:11 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 64 min |
| Jul 29, 7:18 PM CDT | Severe Thunderstorm Warning | UNR | Perkins | 57 min |
| Jul 29, 8:34 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 15 min |
| Jul 29, 8:35 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins, Ziebach | 55 min |
| Jul 29, 8:58 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 47 min |
| Jul 29, 9:43 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 47 min |
| Jul 29, 10:50 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Potter, Walworth | 25 min |
| Jul 29, 11:12 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Faulk, Potter | 48 min |
| Jul 29, 11:43 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds, Faulk, McPherson | 32 min |
| Jul 30, 12:15 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds | 22 min |
| Jul 30, 11:06 AM CDT | Severe Thunderstorm Warning | ABR | Roberts | 39 min |
| Jul 31, 5:21 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Lawrence | 54 min |
| Jul 31, 6:05 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 40 min |
| Jul 31, 6:47 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins | 27 min |
| 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 |
| Sep 1, 9:08 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 26 min |
| Sep 1, 9:51 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Meade, Pennington, Ziebach | 39 min |
| Sep 2, 11:22 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Pennington | 38 min |
| Sep 2, 11:57 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Pennington | 63 min |
| Sep 3, 12:32 AM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Mellette | 58 min |
| Sep 3, 1:28 AM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Mellette, Todd | 62 min |
| Sep 3, 3:38 AM CDT | Severe Thunderstorm Warning | UNR | Todd | 38 min |
| Oct 6, 3:23 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 52 min |
| Oct 6, 3:54 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 51 min |
| Oct 6, 4:23 PM CDT | Severe Thunderstorm Warning | UNR | Pennington | 52 min |
| Oct 6, 4:44 PM CDT | Severe Thunderstorm Warning | UNR | Meade | 61 min |
| Oct 6, 4:45 PM CDT | Severe Thunderstorm Warning | UNR | Custer | 30 min |
| Oct 6, 5:03 PM CDT | Severe Thunderstorm Warning | UNR | 57 min | |
| Oct 6, 5:13 PM CDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 41 min |
| Oct 6, 6:06 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Mellette | 39 min |
| Oct 6, 6:19 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson | 37 min |
| Oct 6, 6:43 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Mellette, Todd | 47 min |
| Oct 6, 6:49 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Mellette | 56 min |
| Oct 6, 6:54 PM CDT | Severe Thunderstorm Warning | UNR | Meade, Perkins, Ziebach | 51 min |
| Oct 6, 7:12 PM CDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson | 48 min |
| Oct 6, 7:22 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 53 min |
| Oct 6, 7:38 PM CDT | Severe Thunderstorm Warning | UNR | Perkins, Ziebach | 45 min |
| Oct 6, 7:52 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 38 min |
| Oct 6, 8:00 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd | 45 min |
| Oct 6, 8:01 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 44 min |
| Oct 6, 8:15 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Stanley, Sully | 33 min |
| Oct 6, 8:23 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Hughes, Potter, Stanley, Sully | 52 min |
| Oct 6, 8:34 PM CDT | Severe Thunderstorm Warning | ABR | Jones, Stanley | 41 min |
| Oct 6, 8:35 PM CDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson | 22 min |
| Oct 6, 8:47 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Lawrence | 58 min |
| Oct 6, 9:34 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 41 min |
| Oct 6, 10:02 PM CDT | Severe Thunderstorm Warning | UNR | Todd, Tripp | 58 min |
| Oct 6, 10:55 PM CDT | Severe Thunderstorm Warning | UNR | Tripp | 22 min |
| Oct 11, 9:58 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, McCook, Turner | 32 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pennington County90
- Meade County83
- Perkins County58
- Jackson County53
- Harding County49
- Todd County49
- Custer County45
- Corson County39
- Butte County39
- Dewey County38
- Haakon County37
- Bennett County37
- Mellette County36
- Ziebach County35
- Stanley County33
- Tripp County30
- Lyman County30
- Sully County29
- Jones County29
- Charles Mix County26
- Union County26
- Potter County26
- Roberts County25
- Brown County25
- Lawrence County25
- Edmunds County25
- Marshall County24
- Fall River County24
- Day County23
- Hughes County23
- Bon Homme County22
- Hutchinson County22
- Minnehaha County21
- Faulk County21
- Hand County20
- Beadle County20
- McCook County20
- Miner County20
- Spink County20
- Yankton County19
25 more counties
- Turner County19
- Walworth County18
- Moody County17
- Clay County17
- Gregory County16
- Lake County16
- Grant County16
- Hyde County16
- McPherson County16
- Sanborn County15
- Jerauld County13
- Douglas County13
- Hanson County13
- Codington County13
- Campbell County13
- Lincoln County12
- Aurora County12
- Buffalo County11
- Davison County11
- Clark County10
- Brule County10
- Kingsbury County8
- Brookings County7
- Hamlin County5
- Deuel County4
The busiest days
Days with the most alerts issued, by UTC date.
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.