Alert archive / North Dakota / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in North Dakota, 2022
277 severe thunderstorm warnings in 2022. 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 2022. Tap one for its archive.
- Severe Thunderstorm Warnings
- 277
- Busiest month
- July111 severe thunderstorm warnings
- Busiest day
- June 20, 202234 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.
222 of 277 severe thunderstorm warnings covering North Dakota in 2022 had a qualifying storm report inside them; 522 of 605 hail, wind and damage reports fell inside a warning, on average 25 minutes after it went out.
North Dakota, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Severe thunderstorm warnings | 277 | 222 | 20% | 605 | 86% | 25 min |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Bismarck, ND: severe thunderstorm warnings | 159 | 118 | 26% | 291 | 88% | 24 min |
| NWS Grand Forks, ND: severe thunderstorm warnings | 228 | 203 | 11% | 743 | 87% | 27 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 |
|---|---|---|---|---|
| Apr 22, 9:14 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Richland | 46 min |
| Apr 22, 10:06 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Richland | 29 min |
| Apr 23, 3:11 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Steele, Traill | 49 min |
| Apr 23, 3:56 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Grand Forks, Steele, Traill | 49 min |
| May 7, 3:23 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer, Stark | 35 min |
| May 8, 7:05 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 40 min |
| May 8, 7:42 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 33 min |
| May 8, 7:46 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 44 min |
| May 8, 8:17 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 23 min |
| May 8, 8:25 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 35 min |
| May 8, 8:55 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 50 min |
| May 8, 9:32 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 43 min |
| May 9, 7:50 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 40 min |
| May 12, 4:36 AM CDT | Severe Thunderstorm Warning | BIS | Emmons, Sioux | 39 min |
| May 12, 5:11 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer, Oliver | 49 min |
| May 12, 5:23 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Griggs, Nelson, Steele | 52 min |
| May 12, 6:42 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 63 min |
| May 12, 6:47 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland, Sargent | 58 min |
| May 12, 7:04 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 56 min |
| May 12, 7:14 PM CDT | Severe Thunderstorm Warning | BIS | Kidder, Stutsman, Wells | 47 min |
| May 12, 7:47 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Richland, Traill | 58 min |
| May 17, 7:55 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau | 50 min |
| May 18, 2:17 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Traill | 43 min |
| May 28, 7:26 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman | 44 min |
| May 29, 8:08 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Walsh | 67 min |
| May 29, 8:47 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 58 min |
| May 29, 9:46 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Walsh | 59 min |
| May 29, 10:46 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 31 min |
| May 30, 7:35 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 40 min |
| May 30, 8:24 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Richland | 47 min |
| Jun 13, 5:56 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Dunn | 64 min |
| Jun 13, 6:24 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mountrail | 66 min |
| Jun 13, 7:14 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Ward | 61 min |
| Jun 13, 8:02 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean, Sheridan, Ward | 58 min |
| Jun 13, 8:54 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean, Pierce, Sheridan | 66 min |
| Jun 13, 8:57 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Sheridan | 63 min |
| Jun 13, 9:54 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce, Sheridan, Wells | 66 min |
| Jun 13, 10:15 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 45 min |
| Jun 13, 10:51 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Cavalier, Ramsey, Towner | 54 min |
| Jun 13, 10:56 PM CDT | Severe Thunderstorm Warning | BIS | Wells | 34 min |
| Jun 13, 11:08 PM CDT | Severe Thunderstorm Warning | FGF | Eddy | 52 min |
| Jun 13, 11:28 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Wells | 47 min |
| Jun 14, 12:01 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Nelson, Ramsey, Walsh | 45 min |
| Jun 14, 4:43 AM CDT | Severe Thunderstorm Warning | BIS | Dickey | 64 min |
| Jun 14, 5:20 AM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 70 min |
| Jun 14, 5:30 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom, Sargent | 45 min |
| Jun 14, 6:00 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Griggs, Steele | 45 min |
| Jun 14, 6:32 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Griggs, Nelson, Steele, Traill | 43 min |
| Jun 14, 7:15 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Griggs, Nelson, Ramsey, Steele, Traill and 1 more | 45 min |
| Jun 14, 7:31 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Nelson, Pembina, Walsh | 59 min |
| Jun 14, 8:07 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Nelson, Pembina, Walsh | 53 min |
| Jun 18, 7:54 AM CDT | Severe Thunderstorm Warning | FGF | Pembina | 37 min |
| Jun 19, 8:35 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, McIntosh | 55 min |
| Jun 19, 8:49 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure, Logan, McIntosh | 56 min |
| Jun 19, 9:21 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Kidder, Logan, McIntosh, Stutsman | 54 min |
| Jun 19, 9:30 PM CDT | Severe Thunderstorm Warning | BIS | Adams | 60 min |
| Jun 19, 10:12 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Kidder, Stutsman, Wells | 48 min |
| Jun 19, 10:27 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Hettinger | 63 min |
| Jun 19, 10:28 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Logan, McIntosh | 62 min |
| Jun 19, 10:33 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Griggs | 42 min |
| Jun 19, 11:05 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Eddy, Grand Forks, Griggs, Nelson, Steele and 1 more | 55 min |
| Jun 19, 11:19 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Griggs, Steele, Traill | 41 min |
| Jun 19, 11:22 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 53 min |
| Jun 19, 11:27 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure, Logan, Stutsman | 63 min |
| Jun 19, 11:52 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Nelson, Steele, Traill | 21 min |
| Jun 19, 11:53 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 67 min |
| Jun 20, 12:11 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Griggs, Steele | 49 min |
| Jun 20, 12:24 AM CDT | Severe Thunderstorm Warning | BIS | Morton | 36 min |
| Jun 20, 12:38 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 52 min |
| Jun 20, 12:49 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Griggs, Steele, Traill | 25 min |
| Jun 20, 1:21 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder | 54 min |
| Jun 20, 1:58 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder, Sheridan, Wells | 47 min |
| Jun 20, 3:24 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey, Towner | 51 min |
| Jun 20, 3:20 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 55 min |
| Jun 20, 3:41 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure, Logan, McIntosh | 49 min |
| Jun 20, 3:56 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 64 min |
| Jun 20, 4:16 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure, Logan, Stutsman | 44 min |
| Jun 20, 4:19 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 41 min |
| Jun 20, 4:38 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 67 min |
| Jun 20, 4:55 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom | 65 min |
| Jun 20, 4:59 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure, Stutsman | 31 min |
| Jun 20, 5:44 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Stark | 46 min |
| Jun 20, 5:47 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Sargent | 17 min |
| Jun 20, 5:51 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom | 54 min |
| Jun 20, 6:20 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer, Oliver | 40 min |
| Jun 20, 6:26 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Traill | 64 min |
| Jun 20, 10:46 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 59 min |
| Jun 23, 10:45 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina | 45 min |
| Jun 24, 1:46 PM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 59 min |
| Jun 24, 2:06 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy | 39 min |
| Jun 24, 2:13 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina, Walsh | 47 min |
| Jun 24, 2:19 PM CDT | Severe Thunderstorm Warning | FGF | Ramsey, Walsh | 41 min |
| Jun 24, 2:42 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Ramsey | 63 min |
| Jun 24, 2:46 PM CDT | Severe Thunderstorm Warning | BIS | Wells | 59 min |
| Jun 24, 2:52 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina, Ramsey, Walsh | 53 min |
| Jun 24, 3:13 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean, Sheridan | 47 min |
| Jun 24, 3:40 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Nelson, Pembina, Ramsey, Walsh | 65 min |
| Jun 24, 3:45 PM CDT | Severe Thunderstorm Warning | BIS | Wells | 60 min |
| Jun 24, 4:04 PM CDT | Severe Thunderstorm Warning | FGF | Pembina | 14 min |
| Jun 24, 4:09 PM CDT | Severe Thunderstorm Warning | FGF | Ramsey | 22 min |
| Jun 24, 4:19 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 41 min |
| Jun 24, 4:38 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Grand Forks, Griggs, Nelson, Ramsey and 2 more | 67 min |
| Jun 24, 4:40 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean, Oliver | 35 min |
| Jun 24, 4:52 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Wells | 53 min |
| Jun 24, 4:57 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy | 48 min |
| Jun 24, 5:36 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Nelson, Walsh | 54 min |
| Jun 24, 5:39 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Griggs, Nelson, Ramsey | 36 min |
| Jun 24, 5:43 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Griggs, Nelson, Steele | 62 min |
| Jun 24, 5:49 PM CDT | Severe Thunderstorm Warning | BIS | Sheridan, Wells | 56 min |
| Jun 24, 6:10 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Grand Forks, Steele, Traill | 65 min |
| Jun 24, 6:27 PM CDT | Severe Thunderstorm Warning | BIS | Kidder | 48 min |
| Jun 24, 6:27 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Walsh | 48 min |
| Jun 24, 6:39 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 51 min |
| Jun 24, 7:02 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Stutsman | 28 min |
| Jun 24, 7:07 PM CDT | Severe Thunderstorm Warning | FGF | Walsh | 53 min |
| Jun 24, 7:08 PM CDT | Severe Thunderstorm Warning | FGF | Griggs, Nelson | 40 min |
| Jun 24, 7:11 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Grand Forks, Steele, Traill | 64 min |
| Jun 24, 7:22 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Griggs, Steele | 38 min |
| Jun 24, 7:33 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Nelson, Walsh | 42 min |
| Jun 24, 8:25 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure, Logan, McIntosh | 50 min |
| Jun 24, 8:36 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Richland, Traill | 54 min |
| Jun 24, 9:20 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure | 40 min |
| Jun 24, 9:24 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Richland | 66 min |
| Jun 24, 9:38 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland, Sargent | 52 min |
| Jun 24, 11:02 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 58 min |
| Jun 29, 7:56 PM CDT | Severe Thunderstorm Warning | BIS | Bowman | 64 min |
| Jun 29, 8:24 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Hettinger, Sioux | 51 min |
| Jun 29, 8:39 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Hettinger | 51 min |
| Jun 29, 9:10 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton, Sioux | 50 min |
| Jun 29, 9:29 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Hettinger, Sioux | 34 min |
| Jun 29, 9:56 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Logan, McIntosh | 49 min |
| Jun 29, 10:23 PM CDT | Severe Thunderstorm Warning | BIS | Logan, McIntosh | 54 min |
| Jun 29, 10:55 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure, McIntosh | 50 min |
| Jun 29, 11:50 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom, Richland, Sargent | 40 min |
| Jun 30, 12:34 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom, Richland | 41 min |
| Jul 2, 6:00 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide | 60 min |
| Jul 2, 6:34 PM CDT | Severe Thunderstorm Warning | BIS | Burke, McKenzie, Mountrail, Williams | 56 min |
| Jul 2, 6:45 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail, Ward | 45 min |
| Jul 2, 7:19 PM CDT | Severe Thunderstorm Warning | BIS | Golden Valley | 56 min |
| Jul 2, 7:49 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley, Slope | 41 min |
| Jul 2, 8:15 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mercer, Mountrail, Ward | 60 min |
| Jul 2, 8:19 PM CDT | Severe Thunderstorm Warning | BIS | Bowman, Hettinger, Slope | 41 min |
| Jul 2, 8:58 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Hettinger, Slope | 47 min |
| Jul 2, 9:08 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer, Oliver | 67 min |
| Jul 2, 9:39 PM CDT | Severe Thunderstorm Warning | BIS | Adams | 51 min |
| Jul 2, 10:09 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean, Mercer, Morton, Oliver, Sheridan | 51 min |
| Jul 2, 10:41 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean, Morton, Oliver | 64 min |
| Jul 3, 4:59 PM CDT | Severe Thunderstorm Warning | FGF | Richland, Sargent | 46 min |
| Jul 3, 9:40 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley, Slope | 65 min |
| Jul 3, 10:42 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Bowman, Golden Valley, Slope | 63 min |
| Jul 3, 11:41 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Hettinger, Slope, Stark | 64 min |
| Jul 4, 12:39 AM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Hettinger, Morton, Sioux, Stark | 66 min |
| Jul 4, 1:40 AM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton, Sioux | 50 min |
| Jul 5, 4:15 AM CDT | Severe Thunderstorm Warning | BIS | Golden Valley, Slope | 60 min |
| Jul 5, 5:31 AM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Hettinger, Slope | 59 min |
| Jul 5, 5:42 AM CDT | Severe Thunderstorm Warning | BIS | Bowman, Slope | 49 min |
| Jul 5, 6:08 AM CDT | Severe Thunderstorm Warning | BIS | Bowman | 67 min |
| Jul 5, 7:00 AM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Hettinger | 60 min |
| Jul 5, 9:35 PM CDT | Severe Thunderstorm Warning | BIS | Williams | 55 min |
| Jul 9, 1:35 AM CDT | Severe Thunderstorm Warning | BIS | Divide, McKenzie, Williams | 70 min |
| Jul 9, 2:37 AM CDT | Severe Thunderstorm Warning | BIS | Billings, Dunn, Golden Valley, McKenzie | 53 min |
| Jul 9, 2:44 AM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide, McKenzie, Mountrail, Ward, Williams | 61 min |
| Jul 9, 10:38 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 52 min |
| Jul 9, 11:14 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons | 46 min |
| Jul 10, 12:51 AM CDT | Severe Thunderstorm Warning | BIS | Divide, Williams | 54 min |
| Jul 10, 1:45 AM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley, Slope, Stark | 60 min |
| Jul 10, 2:42 AM CDT | Severe Thunderstorm Warning | BIS | Billings, Dunn, Hettinger, McKenzie, Slope, Stark | 78 min |
| Jul 10, 2:57 AM CDT | Severe Thunderstorm Warning | BIS | Billings, Dunn, McKenzie | 33 min |
| Jul 10, 3:28 AM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mercer, Oliver | 62 min |
| Jul 10, 3:39 AM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton, Stark | 66 min |
| Jul 10, 4:13 AM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 62 min |
| Jul 10, 4:25 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Grant, McLean, Morton, Oliver | 65 min |
| Jul 10, 5:01 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Pierce, Rolette | 44 min |
| Jul 10, 5:08 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder, McLean, Sheridan, Wells | 52 min |
| Jul 10, 5:27 AM CDT | Severe Thunderstorm Warning | BIS | Emmons, Logan, McIntosh | 48 min |
| Jul 10, 6:50 AM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 40 min |
| Jul 10, 6:55 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Grand Forks, Griggs, Nelson, Ramsey and 3 more | 65 min |
| Jul 10, 6:59 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Griggs | 61 min |
| Jul 10, 7:35 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Traill, Walsh | 55 min |
| Jul 10, 8:33 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Richland | 57 min |
| Jul 10, 12:10 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass | 65 min |
| Jul 10, 12:24 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 66 min |
| Jul 10, 12:42 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom | 63 min |
| Jul 10, 1:17 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom, Richland | 43 min |
| Jul 10, 1:50 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland | 55 min |
| Jul 14, 12:36 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Nelson, Ramsey | 32 min |
| Jul 15, 12:59 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Traill | 46 min |
| Jul 15, 1:40 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Traill | 65 min |
| Jul 15, 2:38 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Richland | 34 min |
| Jul 15, 3:43 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Richland | 47 min |
| Jul 15, 11:19 PM CDT | Severe Thunderstorm Warning | BIS | Golden Valley, McKenzie | 56 min |
| Jul 17, 6:40 PM CDT | Severe Thunderstorm Warning | BIS | Divide | 65 min |
| Jul 18, 9:19 PM CDT | Severe Thunderstorm Warning | BIS | Divide, Williams | 56 min |
| Jul 18, 10:13 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide, Williams | 62 min |
| Jul 18, 11:02 PM CDT | Severe Thunderstorm Warning | BIS | Divide, Williams | 58 min |
| Jul 18, 11:15 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide, Mountrail, Ward, Williams | 41 min |
| Jul 18, 11:30 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Burke, Renville, Ward | 38 min |
| Jul 18, 11:59 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail, Williams | 61 min |
| Jul 19, 12:45 AM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail, Renville, Ward | 60 min |
| Jul 19, 1:19 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 56 min |
| Jul 19, 1:45 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Burke, McHenry, Mountrail, Renville, Ward | 60 min |
| Jul 19, 2:13 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Walsh | 29 min |
| Jul 19, 2:23 AM CDT | Severe Thunderstorm Warning | BIS | Ward | 37 min |
| Jul 19, 3:35 AM CDT | Severe Thunderstorm Warning | BIS | Rolette | 40 min |
| Jul 19, 3:37 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier | 38 min |
| Jul 19, 3:48 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Cavalier, Ramsey, Towner | 57 min |
| Jul 19, 4:10 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Towner | 50 min |
| Jul 19, 4:42 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina, Ramsey, Towner, Walsh | 48 min |
| Jul 19, 5:21 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina, Walsh | 54 min |
| Jul 19, 6:11 AM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 64 min |
| Jul 20, 6:29 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland, Sargent | 61 min |
| Jul 20, 6:57 PM CDT | Severe Thunderstorm Warning | FGF | Sargent | 33 min |
| Jul 21, 3:51 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton, Oliver | 54 min |
| Jul 21, 4:33 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Kidder | 57 min |
| Jul 21, 4:44 PM CDT | Severe Thunderstorm Warning | BIS | Morton, Oliver | 61 min |
| Jul 21, 5:37 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Morton, Sioux | 53 min |
| Jul 21, 5:39 PM CDT | Severe Thunderstorm Warning | BIS | Logan, McIntosh | 66 min |
| Jul 21, 6:19 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, McIntosh | 56 min |
| Jul 21, 6:30 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, McIntosh | 45 min |
| Jul 21, 7:12 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, McIntosh | 33 min |
| Jul 21, 7:31 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 44 min |
| Jul 21, 7:58 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 25 min |
| Jul 21, 8:00 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 45 min |
| Jul 21, 8:28 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 47 min |
| Jul 21, 8:48 PM CDT | Severe Thunderstorm Warning | BIS | Logan | 42 min |
| Jul 21, 9:15 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure, Logan, McIntosh | 45 min |
| Jul 21, 9:52 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 41 min |
| Jul 22, 7:54 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Burke, Renville | 66 min |
| Jul 22, 8:34 PM CDT | Severe Thunderstorm Warning | BIS | Renville, Ward | 26 min |
| Jul 22, 8:49 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Renville, Ward | 56 min |
| Jul 22, 9:42 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Pierce, Rolette | 63 min |
| Jul 22, 10:19 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Cavalier, Ramsey, Towner | 56 min |
| Jul 22, 10:33 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 42 min |
| Jul 22, 10:39 PM CDT | Severe Thunderstorm Warning | BIS | Pierce, Wells | 43 min |
| Jul 22, 11:03 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Cavalier, Eddy, Nelson, Pembina, Ramsey and 2 more | 57 min |
| Jul 22, 11:14 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy | 46 min |
| Jul 22, 11:52 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Nelson, Ramsey, Walsh | 53 min |
| Jul 23, 12:00 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Eddy, Grand Forks, Griggs, Nelson, Steele and 1 more | 45 min |
| Jul 23, 12:43 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Griggs, Steele, Traill | 62 min |
| Jul 23, 3:32 AM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton, Sioux | 43 min |
| Jul 23, 5:23 AM CDT | Severe Thunderstorm Warning | BIS | Emmons, McIntosh | 52 min |
| Jul 25, 9:24 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Grant, Hettinger, Mercer, Morton, Oliver and 1 more | 51 min |
| Jul 30, 7:53 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Mountrail, Williams | 52 min |
| Jul 30, 8:45 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie, McLean, Mountrail, Williams | 60 min |
| Jul 31, 1:04 AM CDT | Severe Thunderstorm Warning | BIS | Foster, Wells | 56 min |
| Jul 31, 1:04 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Griggs, Nelson | 26 min |
| Aug 5, 6:58 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 62 min |
| Aug 5, 9:20 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland, Sargent | 55 min |
| Aug 5, 10:08 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Richland | 42 min |
| Aug 15, 7:59 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Rolette | 61 min |
| Aug 15, 8:05 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 22 min |
| Aug 17, 6:24 PM CDT | Severe Thunderstorm Warning | BIS | Divide, Williams | 51 min |
| Aug 17, 7:15 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 45 min |
| Aug 17, 7:57 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 48 min |
| Aug 17, 9:41 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Kidder, Logan, Stutsman | 49 min |
| Aug 18, 12:43 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Towner | 47 min |
| Aug 18, 12:59 AM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce | 61 min |
| Aug 18, 1:12 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Towner | 63 min |
| Aug 18, 2:31 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey, Towner | 59 min |
| Aug 23, 3:50 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail, Ward | 55 min |
| Aug 23, 3:54 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Ward | 66 min |
| Aug 23, 4:21 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mountrail | 54 min |
| Aug 23, 4:22 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Ward | 68 min |
| Aug 23, 5:15 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Sheridan | 60 min |
| Aug 23, 5:36 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Rolette | 54 min |
| Aug 23, 5:54 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean, Morton, Oliver | 66 min |
| Aug 23, 5:58 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 32 min |
| Aug 23, 7:34 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Morton | 56 min |
| Aug 26, 10:29 PM CDT | Severe Thunderstorm Warning | BIS | Williams | 46 min |
| Sep 19, 5:29 AM CDT | Severe Thunderstorm Warning | BIS | Grant, Hettinger, Morton | 61 min |
| Sep 19, 5:38 AM CDT | Severe Thunderstorm Warning | BIS | Hettinger | 23 min |
| Sep 19, 7:10 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Morton | 50 min |
| Sep 19, 7:56 AM CDT | Severe Thunderstorm Warning | BIS | Kidder, Logan, Stutsman | 49 min |
| Sep 19, 8:44 AM CDT | Severe Thunderstorm Warning | BIS | LaMoure, Logan, Stutsman | 31 min |
| Sep 19, 10:55 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Griggs, Steele | 50 min |
| Sep 19, 11:23 AM CDT | Severe Thunderstorm Warning | FGF | Eddy, Griggs, Nelson | 37 min |
| Sep 19, 11:49 AM CDT | Severe Thunderstorm Warning | FGF | Eddy, Griggs, Nelson | 56 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Cass County31
- Grand Forks County29
- Barnes County25
- Walsh County25
- Richland County23
- Nelson County23
- McLean County22
- Griggs County22
- Morton County22
- Traill County21
- Ramsey County21
- Steele County20
- Benson County18
- Burleigh County17
- Stutsman County16
- Emmons County16
- Ward County16
- McIntosh County16
- Logan County16
- Williams County16
- Eddy County15
- Cavalier County14
- Grant County14
- Hettinger County14
- Ransom County13
- LaMoure County13
- Wells County13
- Mountrail County13
- Pembina County13
- Dunn County12
- Oliver County12
- Adams County12
- Burke County11
- McKenzie County11
- Slope County11
- Kidder County10
- Bowman County10
- Sheridan County10
- Towner County10
- Divide County10
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20212023
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.