Alert archive / North Dakota / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in North Dakota, 2020
465 severe thunderstorm warnings in 2020. 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 2020. Tap one for its archive.
- Severe Thunderstorm Warnings
- 465
- Busiest month
- July191 severe thunderstorm warnings
- Busiest day
- June 8, 202041 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.
314 of 465 severe thunderstorm warnings covering North Dakota in 2020 had a qualifying storm report inside them; 558 of 662 hail, wind and damage reports fell inside a warning, on average 26 minutes after it went out.
North Dakota, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Severe thunderstorm warnings | 465 | 314 | 32% | 662 | 84% | 26 min |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Bismarck, ND: severe thunderstorm warnings | 291 | 171 | 41% | 339 | 83% | 25 min |
| NWS Grand Forks, ND: severe thunderstorm warnings | 308 | 261 | 15% | 707 | 85% | 26 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 4, 3:12 PM CST | Severe Thunderstorm Warning | BIS | Grant, Hettinger, Morton, Stark | 48 min |
| Mar 31, 7:07 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 23 min |
| Mar 31, 7:29 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 46 min |
| May 3, 7:14 PM CDT | Severe Thunderstorm Warning | BIS | Golden Valley | 46 min |
| May 22, 6:23 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail | 31 min |
| May 23, 7:11 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Hettinger, Stark | 49 min |
| May 23, 7:43 PM CDT | Severe Thunderstorm Warning | BIS | Morton, Stark | 21 min |
| Jun 2, 7:00 AM CDT | Severe Thunderstorm Warning | BIS | Emmons, Logan, McIntosh | 45 min |
| Jun 2, 7:39 AM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure, Logan, McIntosh | 51 min |
| Jun 2, 8:36 AM CDT | Severe Thunderstorm Warning | BIS | Dickey | 24 min |
| Jun 6, 9:09 AM CDT | Severe Thunderstorm Warning | BIS | McLean | 28 min |
| Jun 6, 9:32 AM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide | 43 min |
| Jun 6, 8:40 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Hettinger, Slope | 65 min |
| Jun 6, 9:35 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 55 min |
| Jun 6, 9:47 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Hettinger, Slope, Stark | 58 min |
| Jun 6, 10:24 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton, Sioux | 51 min |
| Jun 7, 12:11 AM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 49 min |
| Jun 7, 12:39 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Pierce, Rolette | 32 min |
| Jun 7, 12:51 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Ramsey | 39 min |
| Jun 7, 1:14 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 10 min |
| Jun 7, 1:46 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 44 min |
| Jun 7, 5:05 PM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 55 min |
| Jun 7, 5:18 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Pembina, Walsh | 57 min |
| Jun 7, 6:04 PM CDT | Severe Thunderstorm Warning | BIS | McIntosh | 56 min |
| Jun 7, 6:28 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder | 47 min |
| Jun 7, 6:34 PM CDT | Severe Thunderstorm Warning | FGF | Pembina | 56 min |
| Jun 7, 6:48 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Kidder, Logan | 57 min |
| Jun 7, 7:19 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Ramsey | 30 min |
| Jun 7, 7:22 PM CDT | Severe Thunderstorm Warning | BIS | Foster | 23 min |
| Jun 7, 7:24 PM CDT | Severe Thunderstorm Warning | BIS | Logan, McIntosh | 51 min |
| Jun 7, 7:25 PM CDT | Severe Thunderstorm Warning | FGF | Eddy | 35 min |
| Jun 7, 7:26 PM CDT | Severe Thunderstorm Warning | BIS | Kidder, Stutsman | 64 min |
| Jun 7, 7:26 PM CDT | Severe Thunderstorm Warning | FGF | Pembina | 64 min |
| Jun 7, 7:34 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Hettinger | 56 min |
| Jun 7, 7:41 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Griggs, Steele | 64 min |
| Jun 7, 7:49 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Wells | 26 min |
| Jun 7, 7:53 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy | 52 min |
| Jun 7, 8:00 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Ramsey | 45 min |
| Jun 7, 8:12 PM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 48 min |
| Jun 7, 8:14 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Nelson, Ramsey | 46 min |
| Jun 7, 8:19 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Stutsman, Wells | 56 min |
| Jun 7, 8:26 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Hettinger, Morton, Stark | 64 min |
| Jun 7, 8:30 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 60 min |
| Jun 7, 8:30 PM CDT | Severe Thunderstorm Warning | FGF | Nelson, Ramsey, Walsh | 45 min |
| Jun 7, 8:31 PM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 44 min |
| Jun 7, 8:38 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Griggs, Nelson, Steele | 67 min |
| Jun 7, 8:39 PM CDT | Severe Thunderstorm Warning | FGF | Pembina | 51 min |
| Jun 7, 8:49 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Grand Forks, Steele, Traill | 56 min |
| Jun 7, 8:57 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom, Traill | 48 min |
| Jun 7, 8:58 PM CDT | Severe Thunderstorm Warning | FGF | Pembina | 47 min |
| Jun 7, 9:06 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 31 min |
| Jun 7, 9:11 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Ransom, Richland, Sargent | 64 min |
| Jun 7, 9:17 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Pembina, Traill, Walsh | 43 min |
| Jun 7, 9:23 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Grand Forks, Traill | 67 min |
| Jun 7, 9:24 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 51 min |
| Jun 7, 9:48 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland, Sargent | 42 min |
| Jun 7, 9:57 PM CDT | Severe Thunderstorm Warning | BIS | Sheridan | 26 min |
| Jun 7, 10:01 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean, Morton, Oliver | 44 min |
| Jun 7, 10:04 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 41 min |
| Jun 7, 10:23 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 39 min |
| Jun 7, 11:21 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom, Sargent | 39 min |
| Jun 7, 11:55 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Richland, Traill | 50 min |
| Jun 8, 12:20 AM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure | 25 min |
| Jun 8, 2:58 PM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 62 min |
| Jun 8, 3:06 PM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 54 min |
| Jun 8, 4:25 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Nelson, Steele | 65 min |
| Jun 8, 4:52 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Steele | 53 min |
| Jun 8, 5:28 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Walsh | 47 min |
| Jun 9, 2:05 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 55 min |
| Jun 11, 3:37 PM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 53 min |
| Jun 11, 4:29 PM CDT | Severe Thunderstorm Warning | FGF | Walsh | 33 min |
| Jun 14, 4:47 PM CDT | Severe Thunderstorm Warning | BIS | Bowman | 43 min |
| Jun 14, 5:17 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman | 43 min |
| Jun 14, 5:50 PM CDT | Severe Thunderstorm Warning | BIS | Golden Valley | 55 min |
| Jun 14, 5:58 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Hettinger | 62 min |
| Jun 14, 6:22 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley | 53 min |
| Jun 14, 6:35 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger, Stark | 40 min |
| Jun 14, 6:40 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Hettinger, Slope | 50 min |
| Jun 14, 6:55 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 65 min |
| Jun 14, 7:14 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Dunn | 61 min |
| Jun 14, 7:14 PM CDT | Severe Thunderstorm Warning | BIS | Morton, Stark | 46 min |
| Jun 14, 7:40 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger, Stark | 35 min |
| Jun 14, 7:49 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie | 23 min |
| Jun 14, 7:59 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Mountrail | 61 min |
| Jun 14, 8:56 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail | 49 min |
| Jun 14, 9:20 PM CDT | Severe Thunderstorm Warning | BIS | Burke | 55 min |
| Jun 15, 12:33 AM CDT | Severe Thunderstorm Warning | BIS | Mountrail | 42 min |
| Jun 15, 1:13 AM CDT | Severe Thunderstorm Warning | BIS | Mountrail, Renville, Ward | 47 min |
| Jun 15, 1:42 AM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail | 48 min |
| Jun 15, 1:48 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville | 31 min |
| Jun 15, 1:53 AM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail, Renville, Ward | 37 min |
| Jun 15, 2:24 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Burke, Renville, Ward | 55 min |
| Jun 16, 10:26 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 64 min |
| Jun 16, 10:28 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail, Renville, Ward | 62 min |
| Jun 16, 10:32 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail | 43 min |
| Jun 16, 10:56 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville, Ward | 34 min |
| Jun 16, 11:05 PM CDT | Severe Thunderstorm Warning | BIS | Morton, Oliver | 34 min |
| Jun 16, 11:13 PM CDT | Severe Thunderstorm Warning | BIS | Dunn | 30 min |
| Jun 16, 11:21 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville | 39 min |
| Jun 16, 11:51 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville | 38 min |
| Jun 17, 12:09 AM CDT | Severe Thunderstorm Warning | BIS | Mountrail, Ward | 51 min |
| Jun 17, 12:49 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Renville | 56 min |
| Jun 17, 1:32 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder | 21 min |
| Jun 17, 5:53 PM CDT | Severe Thunderstorm Warning | FGF | Nelson, Ramsey, Walsh | 52 min |
| Jun 17, 6:00 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure, Stutsman | 30 min |
| Jun 17, 6:10 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Griggs, Steele | 65 min |
| Jun 17, 6:34 PM CDT | Severe Thunderstorm Warning | FGF | Nelson, Walsh | 41 min |
| Jun 17, 6:38 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina, Walsh | 37 min |
| Jun 17, 6:45 PM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 60 min |
| Jun 17, 7:03 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Steele, Traill | 42 min |
| Jun 17, 7:17 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Steele, Traill | 58 min |
| Jun 17, 7:39 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Steele, Traill, Walsh | 51 min |
| Jun 17, 7:43 PM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 47 min |
| Jun 17, 8:10 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Grand Forks, Steele, Traill | 65 min |
| Jun 17, 8:33 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Steele, Traill | 42 min |
| Jun 17, 8:39 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Traill | 66 min |
| Jun 17, 8:51 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Steele, Traill | 39 min |
| Jun 17, 8:58 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 47 min |
| Jun 17, 9:13 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Grand Forks, Steele, Traill | 62 min |
| Jun 17, 9:19 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 56 min |
| Jun 17, 9:25 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 50 min |
| Jun 17, 10:12 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Grand Forks, Steele, Traill | 63 min |
| Jun 18, 1:34 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Steele, Traill | 26 min |
| Jun 20, 1:25 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Griggs, Steele | 18 min |
| Jun 20, 1:40 PM CDT | Severe Thunderstorm Warning | FGF | Griggs | 23 min |
| Jun 20, 3:05 PM CDT | Severe Thunderstorm Warning | FGF | Griggs, Steele | 20 min |
| Jun 20, 3:22 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 26 min |
| Jun 20, 3:56 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 49 min |
| Jun 20, 4:08 PM CDT | Severe Thunderstorm Warning | FGF | Pembina | 37 min |
| Jun 20, 4:59 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 46 min |
| Jun 20, 5:38 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 52 min |
| Jun 20, 6:05 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Ransom, Richland | 25 min |
| Jun 25, 12:22 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 53 min |
| Jun 25, 12:58 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Griggs, Nelson, Ramsey, Walsh | 62 min |
| Jun 25, 2:01 PM CDT | Severe Thunderstorm Warning | FGF | Griggs, Nelson | 44 min |
| Jun 25, 2:33 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Griggs, Nelson, Steele | 57 min |
| Jun 25, 2:59 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Steele, Traill | 33 min |
| Jun 25, 4:16 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 31 min |
| Jun 28, 3:46 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry | 44 min |
| Jun 28, 3:53 PM CDT | Severe Thunderstorm Warning | BIS | McHenry | 37 min |
| Jun 28, 4:25 PM CDT | Severe Thunderstorm Warning | BIS | McLean | 50 min |
| Jun 28, 4:27 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry | 63 min |
| Jun 28, 4:48 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 42 min |
| Jun 28, 4:51 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 23 min |
| Jun 28, 5:23 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 67 min |
| Jun 28, 6:00 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville, Ward | 45 min |
| Jun 28, 6:00 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer, Morton, Oliver | 60 min |
| Jun 28, 6:35 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville | 35 min |
| Jun 28, 7:04 PM CDT | Severe Thunderstorm Warning | BIS | Morton, Oliver | 56 min |
| Jun 28, 7:16 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman | 59 min |
| Jun 28, 7:24 PM CDT | Severe Thunderstorm Warning | BIS | Renville, Ward | 66 min |
| Jun 28, 7:37 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau | 38 min |
| Jun 28, 7:45 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton, Oliver | 60 min |
| Jun 28, 7:50 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 55 min |
| Jun 28, 7:52 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 53 min |
| Jun 28, 8:13 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau | 47 min |
| Jun 28, 8:43 PM CDT | Severe Thunderstorm Warning | BIS | Morton, Sioux | 62 min |
| Jun 28, 9:26 PM CDT | Severe Thunderstorm Warning | BIS | Sioux | 45 min |
| Jun 29, 5:50 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley, McKenzie | 55 min |
| Jun 29, 6:24 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie | 51 min |
| Jun 29, 6:45 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley, McKenzie | 30 min |
| Jun 29, 7:07 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie | 53 min |
| Jun 29, 7:10 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie | 65 min |
| Jun 29, 7:12 PM CDT | Severe Thunderstorm Warning | BIS | Billings | 48 min |
| Jun 29, 7:51 PM CDT | Severe Thunderstorm Warning | BIS | Dunn | 39 min |
| Jun 29, 8:15 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger, Stark | 30 min |
| Jun 29, 8:16 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie, McLean, Mountrail | 59 min |
| Jun 29, 8:29 PM CDT | Severe Thunderstorm Warning | BIS | Dunn | 61 min |
| Jun 29, 8:30 PM CDT | Severe Thunderstorm Warning | BIS | Stark | 39 min |
| Jun 29, 9:06 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Hettinger, Stark | 54 min |
| Jun 29, 9:15 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail, Ward | 60 min |
| Jun 29, 9:37 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Hettinger | 38 min |
| Jun 30, 3:00 AM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Sioux | 45 min |
| Jun 30, 5:55 AM CDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 65 min |
| Jun 30, 8:06 AM CDT | Severe Thunderstorm Warning | BIS | Emmons, Morton, Sioux | 39 min |
| Jun 30, 8:34 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Morton | 56 min |
| Jun 30, 9:30 AM CDT | Severe Thunderstorm Warning | BIS | McLean | 45 min |
| Jun 30, 12:32 PM CDT | Severe Thunderstorm Warning | BIS | Kidder | 43 min |
| Jun 30, 1:00 PM CDT | Severe Thunderstorm Warning | BIS | Wells | 45 min |
| Jun 30, 2:38 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce, Sheridan, Wells | 52 min |
| Jun 30, 3:36 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 54 min |
| Jun 30, 3:41 PM CDT | Severe Thunderstorm Warning | BIS | Pierce, Wells | 49 min |
| Jun 30, 4:28 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 62 min |
| Jun 30, 4:29 PM CDT | Severe Thunderstorm Warning | BIS | Pierce, Wells | 32 min |
| Jun 30, 7:59 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy | 27 min |
| Jun 30, 8:23 PM CDT | Severe Thunderstorm Warning | FGF | Griggs, Nelson, Steele | 52 min |
| Jun 30, 8:45 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Griggs, Steele | 30 min |
| Jun 30, 9:10 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Grand Forks, Griggs, Nelson, Steele | 50 min |
| Jun 30, 9:40 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Eddy, Griggs, Nelson, Steele | 50 min |
| Jul 2, 4:49 PM CDT | Severe Thunderstorm Warning | BIS | Dunn | 41 min |
| Jul 2, 5:08 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger, Stark | 67 min |
| Jul 2, 5:30 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mercer | 45 min |
| Jul 2, 5:47 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mountrail, Ward | 43 min |
| Jul 2, 5:56 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger, Stark | 64 min |
| Jul 2, 6:06 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer | 54 min |
| Jul 2, 6:23 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger, Slope, Stark | 35 min |
| Jul 2, 6:29 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail, Renville, Ward | 46 min |
| Jul 2, 7:19 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Renville | 41 min |
| Jul 2, 7:28 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean, Ward | 27 min |
| Jul 3, 10:56 PM CDT | Severe Thunderstorm Warning | BIS | Adams | 34 min |
| Jul 3, 11:00 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 45 min |
| Jul 3, 11:37 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman | 38 min |
| Jul 4, 12:13 AM CDT | Severe Thunderstorm Warning | BIS | Adams, Hettinger | 62 min |
| Jul 4, 2:26 AM CDT | Severe Thunderstorm Warning | FGF | Pembina | 39 min |
| Jul 4, 3:37 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 53 min |
| Jul 4, 4:26 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure | 64 min |
| Jul 4, 4:27 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure, Logan | 48 min |
| Jul 4, 5:08 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Ransom, Richland | 19 min |
| Jul 4, 5:10 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure, Logan, McIntosh | 65 min |
| Jul 4, 5:25 PM CDT | Severe Thunderstorm Warning | BIS | McIntosh | 65 min |
| Jul 4, 5:57 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure, Logan, McIntosh | 63 min |
| Jul 4, 6:02 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 58 min |
| Jul 4, 6:44 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 31 min |
| Jul 4, 10:13 PM CDT | Severe Thunderstorm Warning | BIS | Bowman, Slope | 62 min |
| Jul 4, 11:09 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Bowman, Slope, Stark | 51 min |
| Jul 5, 12:05 AM CDT | Severe Thunderstorm Warning | BIS | Divide, Williams | 55 min |
| Jul 5, 12:39 AM CDT | Severe Thunderstorm Warning | BIS | Divide, Williams | 66 min |
| Jul 5, 1:27 AM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide, Mountrail, Ward, Williams | 63 min |
| Jul 5, 3:24 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger, Slope, Stark | 39 min |
| Jul 5, 3:51 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger, Stark | 39 min |
| Jul 5, 4:07 PM CDT | Severe Thunderstorm Warning | FGF | Sargent | 53 min |
| Jul 5, 4:12 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Hettinger, Morton, Stark | 63 min |
| Jul 5, 4:39 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 66 min |
| Jul 5, 4:46 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland, Sargent | 44 min |
| Jul 5, 5:04 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Richland | 41 min |
| Jul 5, 5:31 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 38 min |
| Jul 5, 5:41 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 21 min |
| Jul 5, 5:53 PM CDT | Severe Thunderstorm Warning | BIS | Grant | 36 min |
| Jul 5, 6:24 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman | 39 min |
| Jul 5, 6:42 PM CDT | Severe Thunderstorm Warning | BIS | Divide | 63 min |
| Jul 5, 7:32 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide | 58 min |
| Jul 6, 4:10 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 50 min |
| Jul 7, 8:33 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Bowman, Golden Valley, Slope | 57 min |
| Jul 7, 8:43 PM CDT | Severe Thunderstorm Warning | BIS | Divide, McKenzie, Williams | 62 min |
| Jul 7, 9:29 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Billings, Bowman, Dunn, Golden Valley, Hettinger and 2 more | 61 min |
| Jul 7, 9:34 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Dunn, Golden Valley, McKenzie | 56 min |
| Jul 7, 9:44 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide, McKenzie, Mountrail, Williams | 61 min |
| Jul 7, 10:13 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Grant, Hettinger, Mercer, Morton, Oliver and 1 more | 62 min |
| Jul 7, 10:29 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman | 46 min |
| Jul 7, 10:30 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail, Renville, Ward | 45 min |
| Jul 7, 11:06 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Grant, McLean, Mercer, Morton, Oliver | 54 min |
| Jul 7, 11:12 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, McLean, Mountrail, Renville, Ward | 63 min |
| Jul 7, 11:53 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder, McLean, Sheridan, Wells | 67 min |
| Jul 8, 12:11 AM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 64 min |
| Jul 8, 12:14 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Pierce, Rolette, Ward | 61 min |
| Jul 8, 12:29 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Griggs | 61 min |
| Jul 8, 12:43 AM CDT | Severe Thunderstorm Warning | BIS | Foster, Kidder, Stutsman, Wells | 62 min |
| Jul 8, 12:44 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Griggs, Nelson, Ramsey, Towner | 46 min |
| Jul 8, 1:08 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom, Richland | 52 min |
| Jul 8, 1:15 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom, Richland | 60 min |
| Jul 8, 1:29 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Grand Forks, Griggs, Nelson, Steele | 61 min |
| Jul 8, 1:32 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Griggs, Steele, Traill | 58 min |
| Jul 8, 1:33 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Cavalier, Nelson, Ramsey, Towner, Walsh | 57 min |
| Jul 8, 2:12 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Richland | 63 min |
| Jul 8, 2:18 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Grand Forks, Steele, Traill | 57 min |
| Jul 8, 2:22 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Grand Forks, Nelson, Pembina, Ramsey, Walsh | 53 min |
| Jul 8, 3:22 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Richland, Sargent | 38 min |
| Jul 8, 3:58 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 62 min |
| Jul 8, 4:23 AM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland, Sargent | 52 min |
| Jul 8, 5:00 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 60 min |
| Jul 8, 10:52 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 53 min |
| Jul 8, 11:36 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 12 min |
| Jul 9, 12:33 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 27 min |
| Jul 9, 12:50 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 40 min |
| Jul 10, 3:04 PM CDT | Severe Thunderstorm Warning | BIS | Golden Valley, Slope | 56 min |
| Jul 10, 3:48 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Slope, Stark | 57 min |
| Jul 10, 5:29 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Hettinger | 48 min |
| Jul 10, 6:05 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley, McKenzie | 40 min |
| Jul 10, 6:11 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 64 min |
| Jul 10, 6:43 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Dunn, Stark | 26 min |
| Jul 10, 7:11 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Sioux | 49 min |
| Jul 10, 7:59 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Logan, McIntosh | 49 min |
| Jul 10, 8:13 PM CDT | Severe Thunderstorm Warning | BIS | Bowman | 29 min |
| Jul 12, 8:36 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail, Williams | 25 min |
| Jul 12, 9:09 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail, Ward | 51 min |
| Jul 12, 9:12 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail | 48 min |
| Jul 12, 10:34 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Slope, Stark | 34 min |
| Jul 12, 10:55 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Renville, Ward | 20 min |
| Jul 12, 11:28 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley | 62 min |
| Jul 12, 11:30 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Morton, Stark | 60 min |
| Jul 12, 11:32 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley | 43 min |
| Jul 12, 11:59 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mercer, Morton, Oliver, Stark | 61 min |
| Jul 13, 12:05 AM CDT | Severe Thunderstorm Warning | BIS | Billings, Dunn, Golden Valley, McKenzie, Stark | 55 min |
| Jul 13, 12:24 AM CDT | Severe Thunderstorm Warning | BIS | Billings, Dunn, Stark | 66 min |
| Jul 13, 12:53 AM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley, Stark | 38 min |
| Jul 13, 1:03 AM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mercer, Mountrail | 42 min |
| Jul 13, 1:40 AM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean, Mercer, Sheridan, Ward | 41 min |
| Jul 13, 2:45 AM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer | 45 min |
| Jul 13, 3:29 AM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer, Stark | 46 min |
| Jul 13, 3:50 AM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer, Morton, Oliver | 40 min |
| Jul 13, 4:13 AM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mercer, Oliver | 23 min |
| Jul 13, 11:05 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Ramsey, Towner | 55 min |
| Jul 13, 11:23 AM CDT | Severe Thunderstorm Warning | BIS | Pierce, Rolette | 24 min |
| Jul 13, 11:48 AM CDT | Severe Thunderstorm Warning | BIS | Pierce, Rolette | 57 min |
| Jul 13, 11:54 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Towner | 38 min |
| Jul 17, 11:56 AM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Mountrail, Ward | 64 min |
| Jul 17, 1:04 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail, Ward | 41 min |
| Jul 17, 1:08 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Rolette | 67 min |
| Jul 17, 1:17 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 58 min |
| Jul 17, 2:01 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Towner | 59 min |
| Jul 17, 2:03 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Pierce, Rolette | 57 min |
| Jul 17, 2:06 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 54 min |
| Jul 17, 2:22 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Cavalier, Ramsey, Towner | 53 min |
| Jul 17, 2:33 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina | 57 min |
| Jul 17, 2:56 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Cavalier, Pembina, Ramsey, Towner, Walsh | 64 min |
| Jul 17, 2:58 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce | 47 min |
| Jul 17, 3:21 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 54 min |
| Jul 17, 3:42 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce | 48 min |
| Jul 17, 3:54 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Grand Forks, Nelson, Pembina, Ramsey, Walsh | 51 min |
| Jul 17, 4:09 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Nelson, Ramsey | 66 min |
| Jul 17, 4:13 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 62 min |
| Jul 17, 4:18 PM CDT | Severe Thunderstorm Warning | FGF | Pembina | 57 min |
| Jul 17, 4:23 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Nelson, Pembina, Walsh | 67 min |
| Jul 17, 4:48 PM CDT | Severe Thunderstorm Warning | BIS | McHenry | 57 min |
| Jul 17, 4:49 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Nelson, Ramsey | 41 min |
| Jul 17, 4:58 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Traill | 62 min |
| Jul 17, 5:10 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Nelson, Ramsey, Towner | 65 min |
| Jul 17, 5:20 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean, Sheridan, Ward | 25 min |
| Jul 17, 5:21 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Traill | 54 min |
| Jul 17, 5:25 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Nelson, Ramsey | 65 min |
| Jul 17, 5:39 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Ramsey | 66 min |
| Jul 17, 5:44 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean, Pierce, Sheridan | 61 min |
| Jul 17, 5:54 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Traill | 66 min |
| Jul 17, 6:01 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce, Sheridan, Wells | 59 min |
| Jul 17, 6:04 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Stutsman, Wells | 56 min |
| Jul 17, 6:35 PM CDT | Severe Thunderstorm Warning | FGF | Eddy, Griggs, Steele | 55 min |
| Jul 17, 6:39 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean, Oliver | 66 min |
| Jul 17, 6:53 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder, Sheridan, Wells | 67 min |
| Jul 17, 7:22 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 53 min |
| Jul 17, 7:26 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Griggs, Steele | 64 min |
| Jul 17, 7:29 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Steele, Traill | 46 min |
| Jul 17, 7:43 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder | 62 min |
| Jul 17, 8:38 PM CDT | Severe Thunderstorm Warning | BIS | Kidder, LaMoure, Logan, Stutsman | 67 min |
| Jul 17, 8:43 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Griggs, Steele | 62 min |
| Jul 17, 8:45 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Sioux | 60 min |
| Jul 17, 9:22 PM CDT | Severe Thunderstorm Warning | BIS | Logan | 53 min |
| Jul 17, 10:17 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland, Sargent | 58 min |
| Jul 17, 10:21 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 54 min |
| Jul 23, 6:31 AM CDT | Severe Thunderstorm Warning | BIS | Burke | 59 min |
| Jul 23, 11:54 AM CDT | Severe Thunderstorm Warning | BIS | Rolette | 36 min |
| Jul 23, 5:07 PM CDT | Severe Thunderstorm Warning | BIS | Golden Valley, Slope | 53 min |
| Jul 23, 5:53 PM CDT | Severe Thunderstorm Warning | BIS | Golden Valley, Slope | 40 min |
| Jul 23, 11:38 PM CDT | Severe Thunderstorm Warning | BIS | Divide, Williams | 50 min |
| Jul 24, 1:22 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Mountrail, Renville, Ward | 53 min |
| Jul 24, 2:13 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Renville | 62 min |
| Jul 24, 6:01 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder | 44 min |
| Jul 24, 6:28 PM CDT | Severe Thunderstorm Warning | BIS | Kidder | 18 min |
| Jul 24, 8:19 PM CDT | Severe Thunderstorm Warning | FGF | Nelson | 26 min |
| Jul 24, 8:27 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Nelson, Ramsey | 33 min |
| Jul 24, 9:30 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Griggs, Nelson, Steele | 45 min |
| Jul 24, 10:14 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Walsh | 46 min |
| Jul 24, 11:41 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 64 min |
| Jul 25, 12:01 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Traill | 44 min |
| Jul 25, 12:07 AM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland, Sargent | 38 min |
| Jul 25, 12:42 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Ransom, Richland | 27 min |
| Jul 25, 3:58 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier | 30 min |
| Jul 25, 4:06 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Hettinger | 54 min |
| Jul 25, 4:26 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Hettinger, Sioux | 64 min |
| Jul 25, 5:21 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 54 min |
| Jul 25, 6:15 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 18 min |
| Jul 25, 6:59 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Sioux | 61 min |
| Jul 25, 8:09 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Logan, McIntosh | 51 min |
| Jul 25, 8:49 PM CDT | Severe Thunderstorm Warning | BIS | Logan | 41 min |
| Jul 25, 9:13 PM CDT | Severe Thunderstorm Warning | FGF | Ramsey, Walsh | 47 min |
| Jul 25, 9:16 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Nelson, Walsh | 44 min |
| Jul 25, 9:23 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Griggs, Nelson | 37 min |
| Jul 25, 9:31 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 44 min |
| Jul 25, 9:42 PM CDT | Severe Thunderstorm Warning | BIS | McIntosh | 37 min |
| Jul 26, 12:08 AM CDT | Severe Thunderstorm Warning | FGF | Traill | 52 min |
| Jul 26, 1:31 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 59 min |
| Jul 30, 4:25 PM CDT | Severe Thunderstorm Warning | BIS | Bowman, Slope | 35 min |
| Jul 31, 2:26 PM CDT | Severe Thunderstorm Warning | BIS | Stark | 49 min |
| Jul 31, 3:04 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger, Stark | 56 min |
| Jul 31, 5:04 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 56 min |
| Jul 31, 6:40 PM CDT | Severe Thunderstorm Warning | FGF | Sargent | 29 min |
| Aug 4, 6:43 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide | 50 min |
| Aug 7, 6:16 PM CDT | Severe Thunderstorm Warning | BIS | Mercer, Oliver | 59 min |
| Aug 7, 6:55 PM CDT | Severe Thunderstorm Warning | BIS | Morton, Oliver | 50 min |
| Aug 7, 7:45 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 45 min |
| Aug 7, 8:53 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 52 min |
| Aug 7, 9:00 PM CDT | Severe Thunderstorm Warning | BIS | Grant | 45 min |
| Aug 7, 9:33 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry | 42 min |
| Aug 7, 10:02 PM CDT | Severe Thunderstorm Warning | BIS | Grant | 28 min |
| Aug 7, 10:32 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau | 43 min |
| Aug 8, 1:58 AM CDT | Severe Thunderstorm Warning | FGF | Pembina | 62 min |
| Aug 8, 9:04 PM CDT | Severe Thunderstorm Warning | BIS | Bowman | 41 min |
| Aug 9, 2:33 AM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mountrail | 34 min |
| Aug 9, 5:47 AM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce | 43 min |
| Aug 9, 6:01 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 59 min |
| Aug 9, 10:12 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Nelson, Ramsey, Walsh | 63 min |
| Aug 9, 11:28 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina, Walsh | 62 min |
| Aug 9, 12:21 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina, Walsh | 54 min |
| Aug 9, 1:39 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Walsh | 66 min |
| Aug 9, 2:10 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Traill | 65 min |
| Aug 9, 2:52 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Traill | 53 min |
| Aug 9, 3:12 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 63 min |
| Aug 9, 3:20 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 22 min |
| Aug 9, 3:30 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 30 min |
| Aug 9, 3:38 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Sargent | 25 min |
| Aug 9, 3:50 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 20 min |
| Aug 9, 3:53 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Traill | 48 min |
| Aug 9, 3:55 PM CDT | Severe Thunderstorm Warning | FGF | Sargent | 28 min |
| Aug 11, 6:33 PM CDT | Severe Thunderstorm Warning | BIS | Bowman | 42 min |
| Aug 11, 6:50 PM CDT | Severe Thunderstorm Warning | BIS | Bowman, Slope | 25 min |
| Aug 11, 7:14 PM CDT | Severe Thunderstorm Warning | BIS | Bowman, Slope | 31 min |
| Aug 11, 7:43 PM CDT | Severe Thunderstorm Warning | BIS | Bowman | 47 min |
| Aug 11, 8:19 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Dunn, McLean, Mercer, Mountrail, Stark | 56 min |
| Aug 11, 8:21 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman | 54 min |
| Aug 11, 9:13 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer, Morton, Stark | 62 min |
| Aug 11, 9:15 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Hettinger | 60 min |
| Aug 13, 10:33 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 57 min |
| Aug 13, 11:50 PM CDT | Severe Thunderstorm Warning | BIS | Bowman, Slope | 55 min |
| Aug 14, 12:43 AM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Hettinger, Slope, Stark | 62 min |
| Aug 14, 1:42 AM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Hettinger, Morton, Sioux | 63 min |
| Aug 14, 2:18 AM CDT | Severe Thunderstorm Warning | BIS | Adams | 42 min |
| Aug 14, 2:48 AM CDT | Severe Thunderstorm Warning | BIS | Grant | 42 min |
| Aug 14, 4:04 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 56 min |
| Aug 14, 4:26 AM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Hettinger, Sioux | 64 min |
| Aug 14, 4:41 AM CDT | Severe Thunderstorm Warning | BIS | Emmons, Logan | 64 min |
| Aug 14, 5:02 AM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton, Sioux | 58 min |
| Aug 14, 5:33 AM CDT | Severe Thunderstorm Warning | BIS | Logan, Stutsman | 57 min |
| Aug 14, 5:46 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Morton, Sioux | 59 min |
| Aug 14, 5:58 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 62 min |
| Aug 14, 6:18 AM CDT | Severe Thunderstorm Warning | BIS | LaMoure, Logan, Stutsman | 57 min |
| Aug 14, 6:34 AM CDT | Severe Thunderstorm Warning | BIS | Emmons, Kidder, Logan | 41 min |
| Aug 14, 6:37 AM CDT | Severe Thunderstorm Warning | FGF | Barnes | 53 min |
| Aug 14, 6:40 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Traill | 65 min |
| Aug 14, 7:16 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Traill | 29 min |
| Aug 14, 8:17 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Steele, Traill | 23 min |
| Aug 14, 8:44 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom, Richland, Sargent | 61 min |
| Aug 14, 9:15 AM CDT | Severe Thunderstorm Warning | FGF | Traill | 18 min |
| Aug 14, 9:38 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Ransom, Richland, Sargent, Traill | 52 min |
| Aug 14, 5:28 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville | 62 min |
| Aug 14, 6:19 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 56 min |
| Aug 14, 6:34 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean, Ward | 56 min |
| Aug 19, 4:57 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 63 min |
| Aug 19, 9:27 AM CDT | Severe Thunderstorm Warning | FGF | Traill | 48 min |
| Aug 20, 7:17 AM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Ramsey, Towner | 30 min |
| Aug 23, 5:07 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 53 min |
| Aug 23, 5:49 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure | 56 min |
| Aug 23, 6:33 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 25 min |
| Aug 23, 7:49 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 27 min |
| Aug 23, 9:08 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 67 min |
| Aug 23, 9:14 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder | 61 min |
| Aug 23, 9:24 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 36 min |
| Aug 23, 9:49 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 56 min |
| Aug 23, 10:04 PM CDT | Severe Thunderstorm Warning | BIS | Kidder, Logan, Stutsman | 56 min |
| Aug 23, 10:41 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 23 min |
| Aug 23, 11:11 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Kidder, Logan | 64 min |
| Aug 24, 12:02 AM CDT | Severe Thunderstorm Warning | FGF | Ransom, Sargent | 58 min |
| Aug 24, 12:07 AM CDT | Severe Thunderstorm Warning | BIS | Dickey | 34 min |
| Aug 24, 12:21 AM CDT | Severe Thunderstorm Warning | FGF | Sargent | 24 min |
| Aug 24, 12:30 AM CDT | Severe Thunderstorm Warning | BIS | Kidder | 45 min |
| Aug 24, 1:03 AM CDT | Severe Thunderstorm Warning | BIS | Kidder, Stutsman | 42 min |
| Aug 24, 1:46 AM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 44 min |
| Aug 24, 1:55 AM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 50 min |
| Aug 24, 3:39 AM CDT | Severe Thunderstorm Warning | FGF | Ransom | 36 min |
| Aug 27, 8:50 AM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer, Morton, Stark | 42 min |
| Aug 27, 7:25 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Hettinger | 50 min |
| Aug 27, 7:54 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Hettinger, Morton | 40 min |
| Sep 2, 7:10 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Griggs, Nelson, Ramsey | 50 min |
| Sep 2, 7:13 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Pierce, Sheridan, Wells | 62 min |
| Sep 2, 7:54 PM CDT | Severe Thunderstorm Warning | FGF | Eddy, Grand Forks, Griggs, Nelson, Steele, Walsh | 51 min |
| Sep 2, 8:35 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Grand Forks, Griggs, Steele, Traill | 55 min |
| Sep 2, 9:30 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 60 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Cass County42
- Grand Forks County38
- Morton County37
- Traill County36
- Stark County35
- Steele County34
- Hettinger County32
- Walsh County31
- Ward County30
- Nelson County30
- Richland County30
- McHenry County29
- Ramsey County29
- Dunn County29
- Grant County28
- Mountrail County27
- Benson County26
- Pembina County26
- Griggs County25
- Adams County24
- Barnes County24
- McLean County23
- Bowman County23
- Bottineau County23
- Renville County20
- Slope County19
- Stutsman County19
- Billings County19
- Logan County18
- Eddy County18
- Kidder County18
- Ransom County18
- Sioux County17
- McKenzie County17
- Mercer County17
- Golden Valley County16
- Dickey County16
- Sargent County16
- LaMoure County14
- Burke County14
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.