Alert archive / North Dakota / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in North Dakota, 2024
296 severe thunderstorm warnings in 2024. 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 2024. Tap one for its archive.
- Severe Thunderstorm Warnings
- 296
- Busiest month
- July109 severe thunderstorm warnings
- Busiest day
- July 15, 202433 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.
191 of 296 severe thunderstorm warnings covering North Dakota in 2024 had a qualifying storm report inside them; 322 of 384 hail, wind and damage reports fell inside a warning, on average 24 minutes after it went out.
North Dakota, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Severe thunderstorm warnings | 296 | 191 | 35% | 384 | 84% | 24 min |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Grand Forks, ND: severe thunderstorm warnings | 154 | 91 | 41% | 197 | 76% | 24 min |
| NWS Bismarck, ND: severe thunderstorm warnings | 212 | 149 | 30% | 316 | 86% | 24 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 8:44 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Griggs, Steele | 61 min |
| May 16, 9:36 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Steele | 39 min |
| May 16, 10:10 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 50 min |
| May 17, 3:22 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 53 min |
| May 17, 3:40 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Hettinger | 50 min |
| May 17, 4:10 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Mountrail, Williams | 50 min |
| May 17, 4:47 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Pierce, Rolette | 43 min |
| May 17, 4:54 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Mountrail | 36 min |
| May 17, 5:31 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Hettinger | 59 min |
| May 17, 6:14 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Griggs, Nelson, Ramsey, Walsh | 46 min |
| May 17, 6:26 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Morton, Sioux | 64 min |
| May 17, 6:54 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Nelson | 51 min |
| May 17, 8:46 PM CDT | Severe Thunderstorm Warning | BIS | McIntosh | 44 min |
| May 19, 6:50 PM CDT | Severe Thunderstorm Warning | BIS | Sioux | 38 min |
| May 19, 7:15 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton, Sioux | 45 min |
| May 19, 7:28 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Sioux | 47 min |
| May 19, 7:58 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Morton, Sioux | 47 min |
| May 19, 8:14 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Logan, McIntosh | 34 min |
| May 23, 3:50 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 55 min |
| May 23, 4:58 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Logan, McIntosh | 47 min |
| May 23, 5:17 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Sargent | 43 min |
| May 23, 5:24 PM CDT | Severe Thunderstorm Warning | BIS | Emmons | 51 min |
| May 23, 5:42 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Logan, McIntosh | 48 min |
| May 23, 6:07 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Logan, McIntosh | 53 min |
| May 23, 6:29 PM CDT | Severe Thunderstorm Warning | BIS | Logan, Stutsman | 31 min |
| May 23, 6:36 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Hettinger | 54 min |
| May 23, 6:57 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure, Logan, McIntosh, Stutsman | 48 min |
| May 23, 7:15 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Hettinger, Sioux | 60 min |
| May 29, 5:21 PM CDT | Severe Thunderstorm Warning | BIS | Bowman, Golden Valley, Slope | 54 min |
| May 29, 5:42 PM CDT | Severe Thunderstorm Warning | BIS | Golden Valley | 63 min |
| May 29, 7:16 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie | 44 min |
| Jun 2, 12:58 PM CDT | Severe Thunderstorm Warning | BIS | Kidder, Wells | 49 min |
| Jun 2, 1:57 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Nelson, Ramsey | 48 min |
| Jun 2, 2:34 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 41 min |
| Jun 2, 2:57 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, McIntosh | 63 min |
| Jun 2, 3:02 PM CDT | Severe Thunderstorm Warning | BIS | Logan | 58 min |
| Jun 2, 3:09 PM CDT | Severe Thunderstorm Warning | BIS | Sheridan, Wells | 43 min |
| Jun 2, 3:21 PM CDT | Severe Thunderstorm Warning | BIS | Kidder, Stutsman | 54 min |
| Jun 2, 4:01 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 44 min |
| Jun 2, 4:44 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Cavalier, Ramsey, Towner | 46 min |
| Jun 2, 5:00 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Sioux | 45 min |
| Jun 2, 5:26 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Nelson, Ramsey, Walsh | 49 min |
| Jun 2, 5:51 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 39 min |
| Jun 2, 6:05 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 55 min |
| Jun 2, 6:16 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 59 min |
| Jun 2, 6:16 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina, Walsh | 44 min |
| Jun 2, 6:25 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 50 min |
| Jun 2, 6:38 PM CDT | Severe Thunderstorm Warning | BIS | Sioux | 33 min |
| Jun 2, 6:54 PM CDT | Severe Thunderstorm Warning | BIS | Logan | 47 min |
| Jun 2, 6:54 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 51 min |
| Jun 2, 7:02 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 58 min |
| Jun 2, 7:24 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 37 min |
| Jun 2, 7:28 PM CDT | Severe Thunderstorm Warning | FGF | Ransom | 47 min |
| Jun 2, 8:07 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland, Sargent | 53 min |
| Jun 2, 8:16 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 44 min |
| Jun 2, 8:58 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland, Sargent | 62 min |
| Jun 2, 9:03 PM CDT | Severe Thunderstorm Warning | BIS | Mercer, Oliver | 42 min |
| Jun 2, 9:58 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 62 min |
| Jun 3, 6:15 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Hettinger | 60 min |
| Jun 3, 7:56 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 29 min |
| Jun 12, 4:09 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 51 min |
| Jun 12, 8:18 PM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 42 min |
| Jun 15, 4:35 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 40 min |
| Jun 15, 5:27 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Ramsey, Towner | 48 min |
| Jun 15, 6:05 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Ramsey, Towner | 40 min |
| Jun 15, 7:05 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger, Slope, Stark | 40 min |
| Jun 15, 7:41 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger, Stark | 49 min |
| Jun 15, 8:48 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Hettinger, Morton, Stark | 57 min |
| Jun 15, 9:33 PM CDT | Severe Thunderstorm Warning | BIS | Divide, McKenzie, Williams | 57 min |
| Jun 15, 9:40 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 46 min |
| Jun 15, 9:43 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 62 min |
| Jun 15, 10:17 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide, McKenzie, Mountrail, Williams | 58 min |
| Jun 15, 10:22 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie | 53 min |
| Jun 15, 11:10 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide, McKenzie, Mountrail, Renville, Ward and 1 more | 65 min |
| Jun 15, 11:15 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie, McLean, Mountrail | 60 min |
| Jun 15, 11:51 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Mountrail, Renville, Ward | 54 min |
| Jun 16, 12:17 AM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mercer | 43 min |
| Jun 16, 12:36 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Pierce, Renville, Rolette, Ward | 54 min |
| Jun 16, 1:23 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Cavalier, Ramsey, Towner | 52 min |
| Jun 16, 1:36 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 54 min |
| Jun 16, 2:12 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Cavalier, Ramsey, Towner | 48 min |
| Jun 16, 4:30 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Griggs, Steele | 45 min |
| Jun 16, 4:52 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Steele, Traill | 53 min |
| Jun 16, 5:12 AM CDT | Severe Thunderstorm Warning | FGF | Steele, Traill | 33 min |
| Jun 17, 9:29 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean, Mercer, Oliver, Sheridan | 61 min |
| Jun 18, 12:30 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Griggs, Nelson, Ramsey, Steele, Walsh | 45 min |
| Jun 18, 12:44 AM CDT | Severe Thunderstorm Warning | BIS | Dickey, Emmons, LaMoure, Logan, McIntosh | 61 min |
| Jun 18, 1:10 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 50 min |
| Jun 18, 1:19 AM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 41 min |
| Jun 18, 1:23 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Griggs, Steele, Traill | 52 min |
| Jun 18, 1:39 AM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure, Logan, McIntosh | 66 min |
| Jun 18, 1:54 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 51 min |
| Jun 18, 2:07 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Steele, Traill | 23 min |
| Jun 18, 2:11 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom, Richland, Sargent | 49 min |
| Jun 18, 2:22 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Steele, Traill | 38 min |
| Jun 18, 2:50 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom, Richland, Sargent, Traill | 40 min |
| Jun 18, 3:24 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 66 min |
| Jun 18, 3:25 AM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland, Sargent | 65 min |
| Jun 18, 4:27 AM CDT | Severe Thunderstorm Warning | FGF | Richland, Sargent | 63 min |
| Jun 22, 5:42 PM CDT | Severe Thunderstorm Warning | BIS | Golden Valley, Slope | 63 min |
| Jun 22, 6:33 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Hettinger, Slope | 57 min |
| Jun 22, 7:16 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier | 25 min |
| Jun 24, 12:38 AM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide | 52 min |
| Jun 24, 1:08 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Burke, Renville, Ward | 67 min |
| Jun 24, 1:26 AM CDT | Severe Thunderstorm Warning | BIS | Burke | 34 min |
| Jun 24, 2:13 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville | 47 min |
| Jun 24, 2:43 AM CDT | Severe Thunderstorm Warning | BIS | Burke, Renville, Ward | 62 min |
| Jun 24, 3:40 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville | 65 min |
| Jun 24, 9:00 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina | 30 min |
| Jun 27, 4:40 PM CDT | Severe Thunderstorm Warning | BIS | Golden Valley, McKenzie | 65 min |
| Jun 27, 5:30 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley, McKenzie | 60 min |
| Jun 27, 5:31 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley, Slope, Stark | 59 min |
| Jun 27, 6:28 PM CDT | Severe Thunderstorm Warning | BIS | Billings | 47 min |
| Jun 27, 6:28 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Hettinger, Slope, Stark | 62 min |
| Jun 27, 6:40 PM CDT | Severe Thunderstorm Warning | BIS | Bowman, Golden Valley, Slope | 65 min |
| Jun 27, 6:44 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley | 46 min |
| Jun 27, 7:05 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Dunn, Stark | 40 min |
| Jun 27, 7:09 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie | 51 min |
| Jun 27, 7:13 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Dunn, Stark | 77 min |
| Jun 27, 7:17 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Hettinger, Slope | 73 min |
| Jun 27, 7:18 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger, Slope, Stark | 57 min |
| Jun 27, 7:40 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie, Mountrail | 65 min |
| Jun 27, 7:58 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Hettinger, Morton, Stark | 62 min |
| Jun 27, 8:04 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Sioux | 56 min |
| Jun 27, 8:05 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer, Morton, Stark | 40 min |
| Jun 27, 8:39 PM CDT | Severe Thunderstorm Warning | BIS | Mercer, Morton, Oliver | 48 min |
| Jun 27, 8:52 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Sioux | 53 min |
| Jun 28, 8:19 PM CDT | Severe Thunderstorm Warning | FGF | Griggs, Steele | 41 min |
| Jun 28, 8:59 PM CDT | Severe Thunderstorm Warning | FGF | Steele, Traill | 46 min |
| Jun 28, 9:33 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 42 min |
| Jul 1, 3:43 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer, Morton, Oliver, Stark | 47 min |
| Jul 9, 6:33 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure, Logan, Stutsman | 30 min |
| Jul 9, 9:06 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 24 min |
| Jul 12, 4:02 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide, Mountrail, Williams | 58 min |
| Jul 12, 4:51 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail, Williams | 54 min |
| Jul 12, 5:33 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail, Ward | 57 min |
| Jul 12, 6:40 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie | 65 min |
| Jul 12, 6:46 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Ward | 59 min |
| Jul 12, 6:49 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger, Slope, Stark | 56 min |
| Jul 12, 7:27 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean, Pierce, Ward | 63 min |
| Jul 12, 7:28 PM CDT | Severe Thunderstorm Warning | BIS | Dunn | 62 min |
| Jul 12, 8:30 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean, Pierce, Sheridan, Wells | 60 min |
| Jul 12, 8:49 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer, Oliver | 56 min |
| Jul 12, 8:54 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Towner | 66 min |
| Jul 12, 9:13 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Hettinger | 62 min |
| Jul 12, 9:43 PM CDT | Severe Thunderstorm Warning | BIS | Morton, Oliver | 48 min |
| Jul 12, 9:56 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 43 min |
| Jul 12, 10:46 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Morton | 49 min |
| Jul 12, 11:10 PM CDT | Severe Thunderstorm Warning | BIS | Divide, Williams | 65 min |
| Jul 13, 2:39 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Renville, Ward | 54 min |
| Jul 13, 6:24 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 51 min |
| Jul 13, 7:57 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 37 min |
| Jul 13, 9:37 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Slope | 53 min |
| Jul 13, 10:30 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Hettinger, Slope | 60 min |
| Jul 14, 5:14 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville | 61 min |
| Jul 14, 5:44 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry | 61 min |
| Jul 14, 6:51 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau | 54 min |
| Jul 14, 7:44 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry | 46 min |
| Jul 14, 8:12 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau | 48 min |
| Jul 14, 8:25 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Pierce | 65 min |
| Jul 14, 8:39 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 66 min |
| Jul 14, 8:48 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail, Williams | 57 min |
| Jul 14, 8:59 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry | 46 min |
| Jul 14, 9:21 PM CDT | Severe Thunderstorm Warning | BIS | McHenry | 39 min |
| Jul 14, 9:32 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie, McLean, Mountrail | 58 min |
| Jul 14, 9:34 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce | 56 min |
| Jul 14, 9:51 PM CDT | Severe Thunderstorm Warning | BIS | Renville, Ward | 39 min |
| Jul 14, 9:57 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail, Ward | 63 min |
| Jul 14, 10:04 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce | 56 min |
| Jul 14, 10:20 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer, Mountrail, Ward | 55 min |
| Jul 14, 10:30 PM CDT | Severe Thunderstorm Warning | BIS | Pierce | 45 min |
| Jul 14, 10:32 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville | 43 min |
| Jul 14, 10:37 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Mountrail | 38 min |
| Jul 14, 10:37 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 53 min |
| Jul 14, 10:45 PM CDT | Severe Thunderstorm Warning | BIS | Ward | 60 min |
| Jul 14, 10:46 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce | 35 min |
| Jul 14, 11:05 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mountrail | 40 min |
| Jul 14, 11:11 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer, Oliver | 50 min |
| Jul 14, 11:11 PM CDT | Severe Thunderstorm Warning | BIS | Pierce, Sheridan, Wells | 64 min |
| Jul 14, 11:26 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 34 min |
| Jul 14, 11:33 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 42 min |
| Jul 14, 11:45 PM CDT | Severe Thunderstorm Warning | FGF | Eddy | 45 min |
| Jul 15, 12:10 AM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer, Oliver | 28 min |
| Jul 15, 12:26 AM CDT | Severe Thunderstorm Warning | FGF | Eddy | 20 min |
| Jul 15, 1:38 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder, Sheridan, Wells | 52 min |
| Jul 15, 2:18 AM CDT | Severe Thunderstorm Warning | BIS | Kidder, Stutsman | 57 min |
| Jul 15, 2:46 AM CDT | Severe Thunderstorm Warning | BIS | LaMoure, Logan, Stutsman | 45 min |
| Jul 15, 3:20 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass | 40 min |
| Jul 15, 3:51 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom, Richland, Sargent | 54 min |
| Jul 15, 4:30 AM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland, Sargent | 60 min |
| Jul 22, 3:12 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina | 63 min |
| Jul 22, 4:11 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina, Walsh | 49 min |
| Jul 22, 4:21 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina | 54 min |
| Jul 22, 5:00 PM CDT | Severe Thunderstorm Warning | FGF | Walsh | 45 min |
| Jul 22, 5:19 PM CDT | Severe Thunderstorm Warning | FGF | Nelson, Ramsey, Walsh | 41 min |
| Jul 22, 5:54 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Nelson, Ramsey, Walsh | 51 min |
| Jul 22, 6:20 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 40 min |
| Jul 22, 6:42 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Ramsey | 48 min |
| Jul 22, 7:01 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 44 min |
| Jul 22, 7:22 PM CDT | Severe Thunderstorm Warning | FGF | Eddy | 38 min |
| Jul 22, 7:37 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 38 min |
| Jul 22, 7:40 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Stutsman, Wells | 65 min |
| Jul 27, 8:11 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 49 min |
| Jul 27, 8:53 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 52 min |
| Jul 27, 9:28 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh | 33 min |
| Jul 28, 2:11 AM CDT | Severe Thunderstorm Warning | FGF | Pembina | 13 min |
| Jul 29, 3:52 AM CDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 53 min |
| Jul 29, 4:26 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mercer | 64 min |
| Jul 29, 4:46 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton, Oliver | 59 min |
| Jul 29, 5:07 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 53 min |
| Jul 29, 5:33 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Hettinger, Stark | 27 min |
| Jul 29, 5:46 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 59 min |
| Jul 29, 5:51 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Hettinger | 54 min |
| Jul 29, 6:02 PM CDT | Severe Thunderstorm Warning | BIS | Ward | 33 min |
| Jul 29, 6:18 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Morton | 57 min |
| Jul 29, 6:28 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 62 min |
| Jul 29, 6:51 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh | 54 min |
| Jul 29, 6:56 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure | 64 min |
| Jul 29, 7:06 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons | 54 min |
| Jul 29, 7:13 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton, Sioux | 47 min |
| Jul 29, 7:53 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure | 47 min |
| Jul 29, 8:02 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Morton, Sioux | 58 min |
| Jul 29, 8:45 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure, Logan, Stutsman | 45 min |
| Jul 29, 8:54 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Sheridan | 51 min |
| Jul 29, 8:58 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Kidder, Logan | 47 min |
| Jul 29, 9:23 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, Kidder, LaMoure, Logan, McIntosh, Stutsman | 67 min |
| Jul 29, 10:27 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure, Stutsman | 63 min |
| Jul 29, 10:49 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Sargent | 56 min |
| Jul 30, 5:17 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer | 58 min |
| Jul 30, 6:11 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer, Oliver | 49 min |
| Jul 30, 6:50 PM CDT | Severe Thunderstorm Warning | BIS | McLean | 40 min |
| Jul 30, 7:03 PM CDT | Severe Thunderstorm Warning | BIS | Ward | 42 min |
| Jul 30, 7:45 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 45 min |
| Jul 31, 6:11 AM CDT | Severe Thunderstorm Warning | FGF | Ramsey | 34 min |
| Jul 31, 6:45 AM CDT | Severe Thunderstorm Warning | FGF | Ramsey | 45 min |
| Jul 31, 11:31 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Ransom | 44 min |
| Jul 31, 12:16 PM CDT | Severe Thunderstorm Warning | FGF | Richland, Sargent | 44 min |
| Jul 31, 12:45 PM CDT | Severe Thunderstorm Warning | FGF | Richland, Sargent | 45 min |
| Jul 31, 1:19 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 56 min |
| Aug 6, 6:26 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Burke, Renville, Ward | 64 min |
| Aug 6, 7:00 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Renville, Ward | 30 min |
| Aug 6, 7:21 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville, Ward | 54 min |
| Aug 6, 7:23 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail, Renville, Ward | 67 min |
| Aug 6, 7:30 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail | 45 min |
| Aug 6, 7:39 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry | 51 min |
| Aug 6, 8:10 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Renville, Ward | 47 min |
| Aug 6, 8:11 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail, Ward | 64 min |
| Aug 6, 8:16 PM CDT | Severe Thunderstorm Warning | BIS | Ward | 59 min |
| Aug 6, 8:59 PM CDT | Severe Thunderstorm Warning | BIS | Ward | 46 min |
| Aug 6, 9:49 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Sheridan | 41 min |
| Aug 6, 11:05 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder | 40 min |
| Aug 21, 11:08 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie | 22 min |
| Aug 22, 12:21 AM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 39 min |
| Aug 22, 12:40 AM CDT | Severe Thunderstorm Warning | BIS | Burke | 23 min |
| Aug 22, 1:28 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Pierce | 47 min |
| Aug 28, 5:14 PM CDT | Severe Thunderstorm Warning | BIS | Sioux | 61 min |
| Aug 28, 5:17 PM CDT | Severe Thunderstorm Warning | BIS | Sioux | 58 min |
| Aug 28, 5:39 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 51 min |
| Aug 28, 6:09 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Sioux | 66 min |
| Aug 28, 6:10 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 65 min |
| Aug 28, 7:02 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Sheridan | 58 min |
| Aug 28, 7:09 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Sioux | 49 min |
| Aug 28, 10:13 PM CDT | Severe Thunderstorm Warning | BIS | Emmons | 47 min |
| Aug 28, 10:21 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Griggs | 39 min |
| Aug 28, 10:54 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Logan | 66 min |
| Aug 28, 10:54 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Griggs, Steele | 66 min |
| Aug 28, 11:42 PM CDT | Severe Thunderstorm Warning | BIS | Kidder, Logan, Stutsman | 63 min |
| Aug 28, 11:54 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Steele, Traill | 66 min |
| Aug 29, 12:21 AM CDT | Severe Thunderstorm Warning | BIS | Pierce, Sheridan, Wells | 54 min |
| Aug 29, 12:41 AM CDT | Severe Thunderstorm Warning | FGF | Benson | 49 min |
| Aug 29, 12:58 AM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean, Sheridan | 47 min |
| Aug 29, 1:02 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass | 43 min |
| Aug 29, 1:23 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean, Oliver, Sheridan | 52 min |
| Aug 29, 1:41 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton, Oliver, Sheridan | 49 min |
| Aug 29, 1:54 AM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce | 24 min |
| Aug 29, 3:13 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Steele, Traill | 47 min |
| Aug 29, 3:34 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Traill | 56 min |
| Aug 29, 5:09 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Griggs, Nelson, Steele | 51 min |
| Sep 12, 7:09 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Hettinger, Stark | 36 min |
| Sep 12, 7:57 PM CDT | Severe Thunderstorm Warning | BIS | Golden Valley, McKenzie | 35 min |
| Sep 16, 1:01 AM CDT | Severe Thunderstorm Warning | BIS | McLean, Sheridan | 44 min |
| Sep 16, 1:10 AM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 50 min |
| Sep 16, 1:17 AM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 43 min |
| Sep 16, 1:57 AM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 63 min |
| Sep 16, 2:23 AM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce, Sheridan | 52 min |
| Sep 16, 3:02 AM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce | 58 min |
| Sep 16, 3:12 AM CDT | Severe Thunderstorm Warning | BIS | McLean, Sheridan | 49 min |
| Sep 16, 3:26 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 64 min |
| Sep 16, 4:30 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey, Towner | 29 min |
| Sep 16, 5:31 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey, Towner | 38 min |
| Sep 16, 5:35 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier | 55 min |
| Sep 16, 6:39 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 51 min |
| Sep 16, 7:12 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 48 min |
| Sep 16, 7:35 PM CDT | Severe Thunderstorm Warning | BIS | McHenry | 55 min |
| Sep 16, 8:40 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce | 65 min |
| Sep 16, 9:21 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 54 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- McHenry County27
- Ward County27
- McLean County26
- Morton County23
- McKenzie County20
- Bottineau County20
- Hettinger County19
- Mountrail County19
- Sioux County19
- Grant County18
- Benson County18
- Ramsey County18
- Emmons County18
- Burleigh County18
- Mercer County18
- Barnes County17
- Logan County17
- Stutsman County17
- Pierce County16
- Renville County16
- Steele County15
- Cass County15
- Sheridan County15
- Stark County14
- Dunn County14
- Adams County13
- LaMoure County13
- Cavalier County13
- Richland County13
- Burke County13
- Sargent County12
- Slope County12
- Oliver County12
- Traill County12
- Williams County11
- Ransom County11
- McIntosh County10
- Griggs County9
- Walsh County9
- Golden Valley County9
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20232025
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.