Alert archive / North Dakota / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in North Dakota, 2008
539 severe thunderstorm warnings in 2008. 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 2008. Tap one for its archive.
- Severe Thunderstorm Warnings
- 539
- Busiest month
- July193 severe thunderstorm warnings
- Busiest day
- August 2, 200855 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.
183 of 539 severe thunderstorm warnings covering North Dakota in 2008 had a qualifying storm report inside them; 272 of 324 hail, wind and damage reports fell inside a warning, on average 28 minutes after it went out.
North Dakota, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Severe thunderstorm warnings | 539 | 183 | 66% | 324 | 84% | 28 min |
Each office's whole area, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Bismarck, ND: severe thunderstorm warnings | 432 | 134 | 69% | 216 | 90% | 27 min |
| NWS Grand Forks, ND: severe thunderstorm warnings | 217 | 91 | 58% | 196 | 76% | 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 |
|---|---|---|---|---|
| Apr 21, 9:31 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Ransom | 44 min |
| May 6, 2:30 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure, Logan, McIntosh, Stutsman | 45 min |
| May 6, 4:55 PM CDT | Severe Thunderstorm Warning | FGF | Ransom | 36 min |
| May 24, 5:55 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Hettinger, Sioux | 50 min |
| May 24, 6:43 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 62 min |
| May 24, 7:14 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 61 min |
| May 24, 7:46 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 44 min |
| May 24, 8:11 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 35 min |
| May 24, 8:24 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 51 min |
| May 24, 8:25 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom | 46 min |
| May 24, 8:33 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 42 min |
| May 24, 8:33 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 42 min |
| May 24, 8:44 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 61 min |
| May 24, 8:45 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom, Richland | 60 min |
| May 24, 9:41 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh | 49 min |
| May 24, 9:44 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh | 46 min |
| May 29, 3:39 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Sheridan | 36 min |
| May 29, 3:50 PM CDT | Severe Thunderstorm Warning | BIS | Williams | 40 min |
| May 29, 4:34 PM CDT | Severe Thunderstorm Warning | BIS | Divide, Williams | 56 min |
| May 29, 4:46 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail, Williams | 59 min |
| May 29, 6:56 PM CDT | Severe Thunderstorm Warning | BIS | Dunn | 64 min |
| May 29, 7:28 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail, Renville, Ward | 62 min |
| May 29, 7:39 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Stark | 66 min |
| May 29, 8:52 PM CDT | Severe Thunderstorm Warning | BIS | Mercer, Morton, Oliver | 53 min |
| May 29, 9:19 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Hettinger | 56 min |
| May 30, 4:41 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie, Mountrail, Williams | 64 min |
| May 30, 5:29 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer | 61 min |
| May 30, 7:39 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 66 min |
| May 30, 8:18 PM CDT | Severe Thunderstorm Warning | BIS | Bowman | 42 min |
| Jun 1, 6:26 PM CDT | Severe Thunderstorm Warning | BIS | Bowman | 64 min |
| Jun 2, 5:57 PM CDT | Severe Thunderstorm Warning | BIS | Slope | 63 min |
| Jun 3, 7:55 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie, McLean, Mercer, Mountrail, Oliver and 1 more | 65 min |
| Jun 3, 8:35 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide, Mountrail, Williams | 55 min |
| Jun 3, 8:58 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer, Oliver, Ward | 34 min |
| Jun 10, 10:42 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, McIntosh | 48 min |
| Jun 11, 1:07 AM CDT | Severe Thunderstorm Warning | BIS | Dickey, McIntosh | 53 min |
| Jun 11, 1:54 AM CDT | Severe Thunderstorm Warning | BIS | Dickey, McIntosh | 66 min |
| Jun 11, 2:19 AM CDT | Severe Thunderstorm Warning | BIS | Sioux | 26 min |
| Jun 11, 2:45 AM CDT | Severe Thunderstorm Warning | BIS | Emmons, Sioux | 60 min |
| Jun 11, 3:01 AM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure | 59 min |
| Jun 11, 3:43 AM CDT | Severe Thunderstorm Warning | BIS | Logan, McIntosh | 62 min |
| Jun 11, 3:50 AM CDT | Severe Thunderstorm Warning | FGF | Ransom, Sargent | 31 min |
| Jun 11, 10:59 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 46 min |
| Jun 11, 11:23 AM CDT | Severe Thunderstorm Warning | BIS | McLean, Oliver | 37 min |
| Jun 11, 11:34 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder | 56 min |
| Jun 11, 11:36 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Sheridan | 39 min |
| Jun 11, 11:55 AM CDT | Severe Thunderstorm Warning | FGF | Sargent | 50 min |
| Jun 11, 12:02 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 43 min |
| Jun 11, 12:04 PM CDT | Severe Thunderstorm Warning | BIS | McLean | 30 min |
| Jun 11, 12:09 PM CDT | Severe Thunderstorm Warning | BIS | Kidder | 37 min |
| Jun 11, 12:19 PM CDT | Severe Thunderstorm Warning | BIS | Kidder, Logan | 56 min |
| Jun 11, 12:28 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean, Sheridan | 38 min |
| Jun 11, 12:36 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Kidder, Logan | 54 min |
| Jun 11, 12:44 PM CDT | Severe Thunderstorm Warning | BIS | Wells | 33 min |
| Jun 11, 1:16 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 24 min |
| Jun 11, 1:24 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Ransom, Richland, Sargent | 66 min |
| Jun 11, 1:29 PM CDT | Severe Thunderstorm Warning | BIS | Kidder | 46 min |
| Jun 11, 1:42 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 35 min |
| Jun 11, 2:14 PM CDT | Severe Thunderstorm Warning | BIS | Kidder, Wells | 61 min |
| Jun 11, 2:22 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Ransom, Richland | 53 min |
| Jun 11, 2:57 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Logan, McIntosh | 63 min |
| Jun 11, 3:09 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 36 min |
| Jun 11, 3:14 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 61 min |
| Jun 12, 3:59 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Rolette | 61 min |
| Jun 12, 5:35 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 55 min |
| Jun 12, 5:38 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland, Sargent | 67 min |
| Jun 13, 2:07 PM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 23 min |
| Jun 13, 4:33 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 42 min |
| Jun 13, 4:54 PM CDT | Severe Thunderstorm Warning | BIS | Emmons | 27 min |
| Jun 14, 2:08 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 67 min |
| Jun 14, 2:16 PM CDT | Severe Thunderstorm Warning | BIS | Divide, Williams | 59 min |
| Jun 14, 2:48 PM CDT | Severe Thunderstorm Warning | FGF | Nelson, Ramsey | 42 min |
| Jun 14, 3:00 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 60 min |
| Jun 14, 3:03 PM CDT | Severe Thunderstorm Warning | BIS | Divide | 12 min |
| Jun 14, 3:13 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide, Mountrail, Williams | 62 min |
| Jun 14, 3:38 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 67 min |
| Jun 14, 4:02 PM CDT | Severe Thunderstorm Warning | BIS | Burke, McLean, Mountrail, Renville, Ward | 58 min |
| Jun 14, 4:21 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 54 min |
| Jun 14, 4:31 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 59 min |
| Jun 14, 4:34 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Steele, Traill | 56 min |
| Jun 14, 4:50 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, McLean, Renville, Sheridan, Ward | 55 min |
| Jun 14, 4:55 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Traill | 35 min |
| Jun 14, 4:57 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 63 min |
| Jun 14, 4:58 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Ransom, Richland | 62 min |
| Jun 14, 5:01 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean | 45 min |
| Jun 14, 5:09 PM CDT | Severe Thunderstorm Warning | FGF | Sargent | 20 min |
| Jun 14, 5:33 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Pierce, Rolette, Sheridan, Wells | 57 min |
| Jun 14, 5:44 PM CDT | Severe Thunderstorm Warning | FGF | Richland, Sargent | 46 min |
| Jun 14, 5:53 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Cavalier, Eddy, Ramsey, Towner | 67 min |
| Jun 14, 6:19 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Stutsman, Wells | 56 min |
| Jun 14, 6:52 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Benson, Cass, Eddy, Grand Forks, Griggs and 4 more | 53 min |
| Jun 14, 7:01 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Nelson, Ramsey, Walsh | 59 min |
| Jun 14, 7:32 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Grand Forks, Richland, Traill | 58 min |
| Jun 14, 7:42 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Grand Forks, Griggs, Nelson, Steele and 1 more | 33 min |
| Jun 14, 8:24 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Grand Forks, Traill | 36 min |
| Jun 17, 5:26 PM CDT | Severe Thunderstorm Warning | BIS | Divide | 64 min |
| Jun 17, 6:31 PM CDT | Severe Thunderstorm Warning | BIS | Divide | 59 min |
| Jun 17, 7:14 PM CDT | Severe Thunderstorm Warning | BIS | Williams | 46 min |
| Jun 17, 7:53 PM CDT | Severe Thunderstorm Warning | BIS | Divide, Williams | 52 min |
| Jun 17, 8:42 PM CDT | Severe Thunderstorm Warning | BIS | Williams | 63 min |
| Jun 17, 9:39 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 66 min |
| Jun 18, 1:42 PM CDT | Severe Thunderstorm Warning | BIS | Morton, Oliver | 48 min |
| Jun 18, 2:06 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 54 min |
| Jun 18, 2:17 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau | 58 min |
| Jun 18, 2:39 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 51 min |
| Jun 18, 2:56 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 49 min |
| Jun 18, 3:15 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau | 60 min |
| Jun 18, 3:47 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 43 min |
| Jun 18, 3:55 PM CDT | Severe Thunderstorm Warning | BIS | Divide | 65 min |
| Jun 18, 4:16 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Pierce, Rolette | 59 min |
| Jun 18, 4:25 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer, Oliver | 50 min |
| Jun 18, 4:30 PM CDT | Severe Thunderstorm Warning | BIS | McHenry | 30 min |
| Jun 18, 4:43 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie | 62 min |
| Jun 18, 5:01 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 59 min |
| Jun 18, 5:14 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean, Mercer, Oliver | 61 min |
| Jun 18, 5:16 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Pierce, Rolette | 59 min |
| Jun 18, 5:24 PM CDT | Severe Thunderstorm Warning | BIS | Ward | 66 min |
| Jun 18, 5:29 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Morton | 46 min |
| Jun 18, 5:33 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Sioux | 57 min |
| Jun 18, 5:44 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Dunn, McKenzie | 61 min |
| Jun 18, 6:10 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean, Mercer, Morton, Oliver | 50 min |
| Jun 18, 6:13 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 62 min |
| Jun 18, 6:28 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 62 min |
| Jun 18, 6:29 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 61 min |
| Jun 18, 6:39 PM CDT | Severe Thunderstorm Warning | BIS | Adams | 40 min |
| Jun 18, 6:53 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Dunn, Stark | 26 min |
| Jun 18, 6:58 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, McLean, Morton, Oliver | 62 min |
| Jun 18, 7:11 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville, Ward | 64 min |
| Jun 18, 7:13 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean, Sheridan, Ward | 62 min |
| Jun 18, 7:35 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie | 55 min |
| Jun 18, 7:40 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 35 min |
| Jun 18, 7:56 PM CDT | Severe Thunderstorm Warning | BIS | Sheridan, Wells | 64 min |
| Jun 18, 7:58 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Grant, McLean, Morton, Oliver | 62 min |
| Jun 18, 8:32 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Grant, Morton, Sioux | 58 min |
| Jun 18, 8:44 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean, Sheridan | 61 min |
| Jun 18, 9:10 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 50 min |
| Jun 18, 9:17 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean | 48 min |
| Jun 18, 9:22 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail | 38 min |
| Jun 18, 9:27 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Grant, Morton, Sioux | 63 min |
| Jun 18, 10:31 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 29 min |
| Jun 18, 11:01 PM CDT | Severe Thunderstorm Warning | BIS | Mercer | 29 min |
| Jun 19, 3:06 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Renville, Ward | 39 min |
| Jun 19, 3:44 PM CDT | Severe Thunderstorm Warning | BIS | Renville, Ward | 46 min |
| Jun 19, 6:20 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean, Ward | 55 min |
| Jun 21, 6:41 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Walsh | 64 min |
| Jun 21, 8:02 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Towner | 58 min |
| Jun 23, 5:15 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Rolette | 60 min |
| Jun 23, 5:56 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce | 64 min |
| Jun 23, 7:01 PM CDT | Severe Thunderstorm Warning | BIS | Pierce | 59 min |
| Jun 23, 7:25 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 65 min |
| Jun 23, 7:59 PM CDT | Severe Thunderstorm Warning | BIS | Pierce | 61 min |
| Jun 23, 8:00 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Towner | 60 min |
| Jun 23, 8:34 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 56 min |
| Jun 23, 8:58 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier | 62 min |
| Jun 23, 9:11 PM CDT | Severe Thunderstorm Warning | BIS | Sheridan, Wells | 64 min |
| Jun 23, 9:21 PM CDT | Severe Thunderstorm Warning | FGF | Eddy | 54 min |
| Jun 23, 10:16 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Kidder, Stutsman, Wells | 59 min |
| Jun 23, 11:15 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder | 60 min |
| Jun 24, 12:51 AM CDT | Severe Thunderstorm Warning | BIS | Emmons, Morton, Sioux | 54 min |
| Jun 24, 2:20 PM CDT | Severe Thunderstorm Warning | BIS | Golden Valley | 40 min |
| Jun 24, 2:51 PM CDT | Severe Thunderstorm Warning | BIS | Billings | 54 min |
| Jun 24, 3:05 PM CDT | Severe Thunderstorm Warning | BIS | Dunn | 55 min |
| Jun 24, 3:45 PM CDT | Severe Thunderstorm Warning | BIS | Dunn | 60 min |
| Jun 24, 4:06 PM CDT | Severe Thunderstorm Warning | BIS | Billings | 24 min |
| Jun 24, 4:13 PM CDT | Severe Thunderstorm Warning | BIS | Stark | 62 min |
| Jun 24, 4:43 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mercer | 62 min |
| Jun 24, 4:58 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Hettinger, Morton, Stark | 62 min |
| Jun 24, 5:25 PM CDT | Severe Thunderstorm Warning | BIS | Stark | 35 min |
| Jun 24, 5:28 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail | 62 min |
| Jun 24, 5:48 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Hettinger | 57 min |
| Jun 24, 5:50 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer, Oliver | 55 min |
| Jun 24, 5:59 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 61 min |
| Jun 24, 6:39 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Hettinger, Morton, Sioux | 66 min |
| Jun 24, 6:46 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer, Oliver | 20 min |
| Jun 24, 7:36 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Ward | 54 min |
| Jun 24, 7:46 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Grant, Sioux | 59 min |
| Jun 24, 7:47 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder | 58 min |
| Jun 24, 8:28 PM CDT | Severe Thunderstorm Warning | BIS | Kidder, LaMoure, Logan, Stutsman | 62 min |
| Jun 24, 8:29 PM CDT | Severe Thunderstorm Warning | BIS | McLean | 61 min |
| Jun 24, 8:45 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, McIntosh | 60 min |
| Jun 24, 9:01 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 59 min |
| Jun 24, 9:18 PM CDT | Severe Thunderstorm Warning | BIS | McHenry | 42 min |
| Jun 24, 9:33 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure, Logan, Stutsman | 57 min |
| Jun 24, 9:52 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom | 53 min |
| Jun 24, 10:39 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Ransom, Richland | 36 min |
| Jun 26, 12:59 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 61 min |
| Jun 26, 1:58 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie | 47 min |
| Jun 26, 2:40 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie | 65 min |
| Jun 26, 2:46 PM CDT | Severe Thunderstorm Warning | BIS | Bowman, Slope | 59 min |
| Jun 26, 3:42 PM CDT | Severe Thunderstorm Warning | BIS | Dunn | 33 min |
| Jun 26, 3:43 PM CDT | Severe Thunderstorm Warning | BIS | Bowman, Slope | 42 min |
| Jun 26, 4:18 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mercer | 57 min |
| Jun 26, 4:24 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Stark | 66 min |
| Jun 26, 4:55 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean | 65 min |
| Jun 26, 5:06 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer, Oliver | 54 min |
| Jun 26, 5:09 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Grant, Mercer, Morton, Stark | 66 min |
| Jun 26, 5:33 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Sheridan | 57 min |
| Jun 26, 5:40 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Stutsman | 35 min |
| Jun 26, 5:43 PM CDT | Severe Thunderstorm Warning | BIS | Sioux | 47 min |
| Jun 26, 5:59 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton, Oliver | 61 min |
| Jun 26, 6:00 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean, Mercer, Oliver | 60 min |
| Jun 26, 6:39 PM CDT | Severe Thunderstorm Warning | BIS | Pierce, Wells | 66 min |
| Jun 26, 6:49 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean, Sheridan | 56 min |
| Jun 26, 6:57 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 63 min |
| Jun 26, 7:08 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder | 67 min |
| Jun 26, 7:15 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Morton, Sioux | 60 min |
| Jun 26, 7:50 PM CDT | Severe Thunderstorm Warning | BIS | Sioux | 25 min |
| Jun 26, 7:54 PM CDT | Severe Thunderstorm Warning | FGF | Steele | 66 min |
| Jun 26, 8:15 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Sioux | 60 min |
| Jun 26, 9:15 PM CDT | Severe Thunderstorm Warning | BIS | Emmons | 60 min |
| Jun 26, 9:20 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 55 min |
| Jun 27, 3:19 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Sargent | 41 min |
| Jun 27, 3:52 PM CDT | Severe Thunderstorm Warning | FGF | Sargent | 23 min |
| Jul 5, 7:11 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Ramsey | 36 min |
| Jul 6, 8:37 PM CDT | Severe Thunderstorm Warning | BIS | Burke | 53 min |
| Jul 6, 9:29 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Renville, Ward | 61 min |
| Jul 6, 10:29 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville | 61 min |
| Jul 6, 11:28 PM CDT | Severe Thunderstorm Warning | BIS | McLean | 62 min |
| Jul 6, 11:51 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau | 40 min |
| Jul 7, 11:01 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 26 min |
| Jul 7, 11:17 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 26 min |
| Jul 7, 2:34 PM CDT | Severe Thunderstorm Warning | BIS | Rolette | 56 min |
| Jul 7, 2:38 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 67 min |
| Jul 7, 3:13 PM CDT | Severe Thunderstorm Warning | BIS | Wells | 62 min |
| Jul 7, 3:22 PM CDT | Severe Thunderstorm Warning | BIS | Kidder | 53 min |
| Jul 7, 3:43 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Stutsman | 62 min |
| Jul 7, 3:46 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Ramsey | 59 min |
| Jul 7, 4:10 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 50 min |
| Jul 7, 4:42 PM CDT | Severe Thunderstorm Warning | FGF | Griggs, Nelson | 63 min |
| Jul 7, 4:51 PM CDT | Severe Thunderstorm Warning | BIS | Logan | 54 min |
| Jul 7, 4:57 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 31 min |
| Jul 7, 5:16 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 42 min |
| Jul 7, 6:00 PM CDT | Severe Thunderstorm Warning | FGF | Pembina | 60 min |
| Jul 7, 6:01 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 59 min |
| Jul 7, 6:18 PM CDT | Severe Thunderstorm Warning | FGF | Traill | 28 min |
| Jul 7, 6:49 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 56 min |
| Jul 7, 7:00 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Richland | 60 min |
| Jul 9, 7:10 PM CDT | Severe Thunderstorm Warning | BIS | Adams | 65 min |
| Jul 9, 7:34 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 56 min |
| Jul 9, 11:25 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Logan, McIntosh | 65 min |
| Jul 10, 12:29 AM CDT | Severe Thunderstorm Warning | BIS | Dickey, Emmons, LaMoure, Logan, McIntosh | 61 min |
| Jul 10, 1:31 AM CDT | Severe Thunderstorm Warning | BIS | Logan, McIntosh | 59 min |
| Jul 10, 6:59 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Richland | 61 min |
| Jul 10, 7:10 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 50 min |
| Jul 10, 8:03 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 57 min |
| Jul 10, 9:15 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 30 min |
| Jul 10, 4:07 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer, Oliver | 53 min |
| Jul 10, 4:41 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 64 min |
| Jul 10, 4:55 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 65 min |
| Jul 10, 5:00 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean, Oliver, Sheridan | 60 min |
| Jul 10, 5:23 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Oliver | 67 min |
| Jul 10, 5:44 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton, Sioux | 61 min |
| Jul 10, 5:59 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 61 min |
| Jul 10, 6:06 PM CDT | Severe Thunderstorm Warning | BIS | Pierce, Wells | 29 min |
| Jul 10, 6:41 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder | 64 min |
| Jul 10, 6:45 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton, Sioux | 60 min |
| Jul 10, 6:50 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Kidder, Logan | 55 min |
| Jul 10, 6:52 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh | 53 min |
| Jul 10, 6:59 PM CDT | Severe Thunderstorm Warning | BIS | Emmons | 61 min |
| Jul 10, 7:48 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure | 57 min |
| Jul 10, 7:52 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 53 min |
| Jul 10, 8:15 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, McIntosh | 60 min |
| Jul 10, 8:28 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland, Sargent | 62 min |
| Jul 10, 10:23 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 67 min |
| Jul 10, 10:54 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, McIntosh | 66 min |
| Jul 15, 5:39 PM CDT | Severe Thunderstorm Warning | BIS | Sioux | 51 min |
| Jul 15, 7:24 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, McIntosh | 41 min |
| Jul 15, 8:07 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton, Sioux | 53 min |
| Jul 16, 2:34 AM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer | 56 min |
| Jul 16, 4:48 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder | 57 min |
| Jul 16, 5:09 AM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 66 min |
| Jul 16, 5:51 AM CDT | Severe Thunderstorm Warning | BIS | LaMoure, Logan | 54 min |
| Jul 16, 6:18 AM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 19 min |
| Jul 16, 6:24 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Ransom | 37 min |
| Jul 16, 7:16 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Towner | 59 min |
| Jul 18, 5:58 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Stark | 47 min |
| Jul 18, 6:38 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer, Morton, Stark | 37 min |
| Jul 18, 6:43 PM CDT | Severe Thunderstorm Warning | BIS | Stark | 62 min |
| Jul 18, 7:24 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger | 66 min |
| Jul 19, 1:24 PM CDT | Severe Thunderstorm Warning | BIS | Williams | 66 min |
| Jul 19, 1:56 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 64 min |
| Jul 19, 2:59 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 61 min |
| Jul 19, 3:56 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie, Mountrail | 64 min |
| Jul 19, 5:17 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer | 43 min |
| Jul 19, 5:38 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, McIntosh | 52 min |
| Jul 19, 5:52 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer, Morton, Oliver, Stark | 38 min |
| Jul 19, 6:18 PM CDT | Severe Thunderstorm Warning | BIS | Mercer, Morton, Oliver | 42 min |
| Jul 19, 6:29 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, McIntosh | 31 min |
| Jul 19, 6:52 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton, Oliver | 53 min |
| Jul 19, 7:38 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Kidder, Morton, Sioux | 67 min |
| Jul 19, 8:22 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide | 53 min |
| Jul 19, 8:38 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Logan, McIntosh | 67 min |
| Jul 19, 9:34 PM CDT | Severe Thunderstorm Warning | BIS | McIntosh | 56 min |
| Jul 19, 10:29 PM CDT | Severe Thunderstorm Warning | BIS | McIntosh | 31 min |
| Jul 20, 12:12 AM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce, Sheridan | 44 min |
| Jul 20, 12:37 AM CDT | Severe Thunderstorm Warning | BIS | Logan, McIntosh | 53 min |
| Jul 20, 12:52 AM CDT | Severe Thunderstorm Warning | BIS | Pierce, Wells | 52 min |
| Jul 20, 1:17 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy | 58 min |
| Jul 20, 1:34 AM CDT | Severe Thunderstorm Warning | BIS | Wells | 26 min |
| Jul 20, 2:04 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Griggs, Nelson | 56 min |
| Jul 20, 6:20 PM CDT | Severe Thunderstorm Warning | BIS | Golden Valley | 40 min |
| Jul 20, 8:14 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger, Stark | 46 min |
| Jul 20, 10:25 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger | 35 min |
| Jul 22, 3:27 AM CDT | Severe Thunderstorm Warning | BIS | Bowman | 63 min |
| Jul 23, 3:56 AM CDT | Severe Thunderstorm Warning | BIS | Mountrail, Williams | 64 min |
| Jul 23, 4:50 AM CDT | Severe Thunderstorm Warning | BIS | Ward | 55 min |
| Jul 23, 5:23 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 67 min |
| Jul 23, 6:07 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Sheridan | 53 min |
| Jul 23, 6:57 PM CDT | Severe Thunderstorm Warning | BIS | Sioux | 29 min |
| Jul 23, 7:00 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder | 45 min |
| Jul 23, 7:23 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder | 52 min |
| Jul 24, 8:05 PM CDT | Severe Thunderstorm Warning | BIS | Williams | 26 min |
| Jul 26, 9:54 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie | 66 min |
| Jul 26, 10:57 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley, McKenzie | 63 min |
| Jul 26, 11:57 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley | 63 min |
| Jul 27, 12:46 AM CDT | Severe Thunderstorm Warning | BIS | Billings, Bowman, Golden Valley, Slope, Stark | 59 min |
| Jul 27, 1:43 AM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Hettinger, Slope | 62 min |
| Jul 27, 2:40 AM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Hettinger, Sioux | 65 min |
| Jul 27, 3:39 AM CDT | Severe Thunderstorm Warning | BIS | Emmons, Grant, Morton, Sioux | 66 min |
| Jul 27, 3:44 AM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Hettinger, Sioux | 61 min |
| Jul 27, 4:33 AM CDT | Severe Thunderstorm Warning | BIS | McIntosh | 57 min |
| Jul 27, 4:43 AM CDT | Severe Thunderstorm Warning | BIS | Emmons | 62 min |
| Jul 27, 5:04 AM CDT | Severe Thunderstorm Warning | BIS | Logan | 56 min |
| Jul 27, 5:32 AM CDT | Severe Thunderstorm Warning | BIS | McIntosh | 58 min |
| Jul 27, 5:50 AM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure | 55 min |
| Jul 28, 6:06 AM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 54 min |
| Jul 28, 6:57 AM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Mountrail, Williams | 63 min |
| Jul 28, 7:20 AM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie | 55 min |
| Jul 28, 7:45 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Burke, McHenry, McKenzie, Mountrail, Renville and 1 more | 60 min |
| Jul 28, 8:11 AM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie, McLean, Mercer, Mountrail | 49 min |
| Jul 28, 8:50 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Mountrail, Renville, Ward | 55 min |
| Jul 28, 9:00 AM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer, Mountrail, Oliver, Ward | 60 min |
| Jul 28, 9:19 AM CDT | Severe Thunderstorm Warning | BIS | Dunn | 41 min |
| Jul 28, 9:59 AM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mercer, Oliver | 46 min |
| Jul 28, 10:54 AM CDT | Severe Thunderstorm Warning | BIS | McLean | 27 min |
| Jul 28, 11:29 AM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer | 31 min |
| Jul 28, 11:56 AM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer, Oliver | 34 min |
| Jul 28, 7:10 PM CDT | Severe Thunderstorm Warning | BIS | Mercer | 65 min |
| Jul 28, 7:14 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 61 min |
| Jul 28, 7:39 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Kidder, Logan | 51 min |
| Jul 28, 7:51 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 54 min |
| Jul 28, 7:56 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer, Oliver | 49 min |
| Jul 28, 8:26 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Kidder, Logan | 49 min |
| Jul 28, 8:33 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 12 min |
| Jul 28, 8:51 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 39 min |
| Jul 28, 9:13 PM CDT | Severe Thunderstorm Warning | BIS | Logan, McIntosh | 47 min |
| Jul 28, 9:16 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Oliver | 59 min |
| Jul 28, 9:29 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 61 min |
| Jul 28, 9:54 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure, Logan, McIntosh | 51 min |
| Jul 28, 10:01 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Nelson, Ramsey, Walsh | 59 min |
| Jul 28, 10:07 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau | 40 min |
| Jul 28, 10:13 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Kidder, Logan | 15 min |
| Jul 28, 10:30 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Nelson, Ramsey | 60 min |
| Jul 28, 10:40 PM CDT | Severe Thunderstorm Warning | BIS | Dickey, McIntosh | 65 min |
| Jul 28, 10:42 PM CDT | Severe Thunderstorm Warning | BIS | Rolette | 53 min |
| Jul 28, 10:42 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Nelson | 63 min |
| Jul 28, 11:00 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Griggs, Nelson, Steele | 60 min |
| Jul 28, 11:31 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Ramsey, Towner | 59 min |
| Jul 28, 11:58 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Steele, Traill | 62 min |
| Jul 29, 12:51 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Traill | 54 min |
| Jul 29, 1:17 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Nelson, Walsh | 28 min |
| Jul 29, 1:41 AM CDT | Severe Thunderstorm Warning | FGF | Cass | 64 min |
| Jul 30, 8:28 AM CDT | Severe Thunderstorm Warning | BIS | McKenzie | 62 min |
| Jul 30, 10:20 AM CDT | Severe Thunderstorm Warning | BIS | Dunn | 25 min |
| Jul 30, 3:50 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger, Slope | 40 min |
| Jul 30, 4:14 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Slope | 46 min |
| Jul 30, 4:18 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger, Stark | 18 min |
| Jul 30, 4:40 PM CDT | Severe Thunderstorm Warning | BIS | Stark | 50 min |
| Jul 30, 4:43 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger | 47 min |
| Jul 30, 4:59 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Hettinger | 23 min |
| Jul 30, 5:20 PM CDT | Severe Thunderstorm Warning | BIS | Mercer, Morton, Oliver, Stark | 40 min |
| Jul 30, 5:20 PM CDT | Severe Thunderstorm Warning | BIS | Adams | 17 min |
| Jul 30, 5:30 PM CDT | Severe Thunderstorm Warning | BIS | Dunn | 60 min |
| Jul 30, 5:34 PM CDT | Severe Thunderstorm Warning | BIS | Adams | 41 min |
| Jul 30, 5:48 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Hettinger | 34 min |
| Jul 30, 6:00 PM CDT | Severe Thunderstorm Warning | BIS | Mercer, Oliver | 60 min |
| Jul 30, 6:04 PM CDT | Severe Thunderstorm Warning | BIS | Adams | 26 min |
| Jul 30, 6:10 PM CDT | Severe Thunderstorm Warning | BIS | Mercer | 51 min |
| Jul 30, 6:16 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer | 29 min |
| Jul 30, 6:33 PM CDT | Severe Thunderstorm Warning | BIS | Adams | 57 min |
| Jul 30, 6:36 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean | 39 min |
| Jul 30, 6:40 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mercer | 50 min |
| Jul 30, 6:45 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 60 min |
| Jul 30, 7:19 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Sioux | 33 min |
| Jul 30, 7:40 PM CDT | Severe Thunderstorm Warning | BIS | Dunn | 50 min |
| Jul 30, 7:47 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 58 min |
| Jul 30, 7:59 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie, McLean, Mountrail | 61 min |
| Jul 30, 8:27 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 63 min |
| Jul 30, 8:31 PM CDT | Severe Thunderstorm Warning | BIS | McHenry | 38 min |
| Jul 30, 8:39 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mountrail, Renville, Ward | 66 min |
| Jul 30, 9:22 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie, Mountrail | 23 min |
| Jul 30, 9:31 PM CDT | Severe Thunderstorm Warning | BIS | McLean | 59 min |
| Jul 30, 9:38 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Morton | 19 min |
| Jul 30, 9:45 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mountrail, Ward | 60 min |
| Jul 30, 10:36 PM CDT | Severe Thunderstorm Warning | BIS | McLean | 54 min |
| Jul 30, 10:44 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mountrail, Ward | 40 min |
| Jul 30, 11:01 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 59 min |
| Jul 30, 11:38 PM CDT | Severe Thunderstorm Warning | BIS | Morton, Oliver | 67 min |
| Jul 31, 12:00 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton, Oliver | 60 min |
| Jul 31, 12:18 AM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 57 min |
| Jul 31, 12:28 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 32 min |
| Jul 31, 12:46 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Grant, Kidder, Logan, McIntosh and 2 more | 59 min |
| Jul 31, 1:48 AM CDT | Severe Thunderstorm Warning | BIS | Emmons, Grant, Logan, McIntosh, Morton, Sioux | 57 min |
| Jul 31, 2:40 AM CDT | Severe Thunderstorm Warning | BIS | Dickey, LaMoure, Logan, McIntosh | 65 min |
| Jul 31, 3:45 AM CDT | Severe Thunderstorm Warning | BIS | Dickey | 26 min |
| Jul 31, 3:55 AM CDT | Severe Thunderstorm Warning | FGF | Richland, Sargent | 35 min |
| Aug 1, 7:02 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie | 58 min |
| Aug 1, 7:25 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Mountrail | 50 min |
| Aug 1, 7:49 PM CDT | Severe Thunderstorm Warning | BIS | Dunn | 56 min |
| Aug 1, 8:08 PM CDT | Severe Thunderstorm Warning | BIS | Mountrail, Ward | 37 min |
| Aug 1, 8:40 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Mountrail | 50 min |
| Aug 1, 8:42 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mercer | 63 min |
| Aug 1, 8:43 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 47 min |
| Aug 1, 9:23 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer | 52 min |
| Aug 1, 9:27 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 29 min |
| Aug 1, 9:28 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie, McLean, Mountrail | 62 min |
| Aug 1, 10:12 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer, Morton, Oliver, Stark | 48 min |
| Aug 1, 10:52 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Mercer, Morton, Oliver | 53 min |
| Aug 2, 1:24 AM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 51 min |
| Aug 2, 1:39 AM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide, Williams | 51 min |
| Aug 2, 1:54 AM CDT | Severe Thunderstorm Warning | BIS | Divide, Williams | 56 min |
| Aug 2, 2:16 AM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 44 min |
| Aug 2, 2:26 AM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide | 34 min |
| Aug 2, 2:27 AM CDT | Severe Thunderstorm Warning | BIS | Burke, Renville | 46 min |
| Aug 2, 2:40 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Rolette | 35 min |
| Aug 2, 2:44 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville | 43 min |
| Aug 2, 2:59 AM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide | 33 min |
| Aug 2, 4:05 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Mountrail, Renville, Ward | 40 min |
| Aug 2, 4:34 AM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 56 min |
| Aug 2, 4:43 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Pierce, Rolette | 43 min |
| Aug 2, 5:45 AM CDT | Severe Thunderstorm Warning | BIS | Mountrail | 60 min |
| Aug 2, 6:36 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Mountrail, Renville, Ward | 54 min |
| Aug 2, 6:58 AM CDT | Severe Thunderstorm Warning | BIS | Mountrail | 62 min |
| Aug 2, 7:07 AM CDT | Severe Thunderstorm Warning | BIS | McLean | 68 min |
| Aug 2, 7:31 AM CDT | Severe Thunderstorm Warning | BIS | Renville, Ward | 59 min |
| Aug 2, 7:41 AM CDT | Severe Thunderstorm Warning | BIS | Mountrail, Renville, Ward | 64 min |
| Aug 2, 8:16 AM CDT | Severe Thunderstorm Warning | BIS | McLean, Ward | 59 min |
| Aug 2, 8:40 AM CDT | Severe Thunderstorm Warning | BIS | Ward | 35 min |
| Aug 2, 8:52 AM CDT | Severe Thunderstorm Warning | BIS | McHenry | 37 min |
| Aug 2, 9:07 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Rolette | 53 min |
| Aug 2, 9:13 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville, Ward | 62 min |
| Aug 2, 9:14 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry | 61 min |
| Aug 2, 9:17 AM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 58 min |
| Aug 2, 10:09 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville | 66 min |
| Aug 2, 10:17 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Renville | 58 min |
| Aug 2, 11:01 AM CDT | Severe Thunderstorm Warning | BIS | Rolette | 26 min |
| Aug 2, 11:13 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Renville, Rolette, Ward | 62 min |
| Aug 2, 12:05 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce, Sheridan, Wells | 55 min |
| Aug 2, 12:12 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Pierce, Renville, Rolette, Ward | 63 min |
| Aug 2, 12:26 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 64 min |
| Aug 2, 1:01 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 59 min |
| Aug 2, 1:04 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Pierce, Rolette | 56 min |
| Aug 2, 1:08 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Towner | 67 min |
| Aug 2, 1:48 PM CDT | Severe Thunderstorm Warning | BIS | Wells | 16 min |
| Aug 2, 1:51 PM CDT | Severe Thunderstorm Warning | FGF | Eddy | 54 min |
| Aug 2, 2:20 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Nelson, Ramsey | 55 min |
| Aug 2, 2:38 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Stutsman | 52 min |
| Aug 2, 3:04 PM CDT | Severe Thunderstorm Warning | FGF | Griggs, Steele | 56 min |
| Aug 2, 3:58 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Griggs, Steele | 42 min |
| Aug 2, 4:04 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass | 56 min |
| Aug 2, 4:58 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 30 min |
| Aug 3, 2:04 AM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley | 56 min |
| Aug 3, 3:40 AM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mercer | 65 min |
| Aug 3, 5:18 AM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 42 min |
| Aug 3, 5:33 AM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 24 min |
| Aug 9, 6:04 PM CDT | Severe Thunderstorm Warning | BIS | Slope | 56 min |
| Aug 9, 6:55 PM CDT | Severe Thunderstorm Warning | BIS | Bowman, Slope | 65 min |
| Aug 9, 7:47 PM CDT | Severe Thunderstorm Warning | BIS | Bowman | 58 min |
| Aug 10, 4:35 PM CDT | Severe Thunderstorm Warning | BIS | Golden Valley, Slope | 40 min |
| Aug 10, 5:16 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley | 44 min |
| Aug 10, 8:40 PM CDT | Severe Thunderstorm Warning | BIS | Divide | 65 min |
| Aug 10, 9:20 PM CDT | Severe Thunderstorm Warning | BIS | Divide, Williams | 55 min |
| Aug 10, 10:16 PM CDT | Severe Thunderstorm Warning | BIS | Burke, Divide | 59 min |
| Aug 10, 11:44 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Mountrail, Renville, Ward | 61 min |
| Aug 11, 2:34 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Morton, Sioux | 41 min |
| Aug 14, 3:53 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 28 min |
| Aug 14, 5:13 PM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 32 min |
| Aug 14, 5:40 PM CDT | Severe Thunderstorm Warning | FGF | Pembina, Walsh | 10 min |
| Aug 14, 6:24 PM CDT | Severe Thunderstorm Warning | FGF | Walsh | 36 min |
| Aug 14, 6:53 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 37 min |
| Aug 14, 7:39 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Steele | 36 min |
| Aug 14, 8:18 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Griggs | 42 min |
| Aug 21, 12:18 AM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail, Williams | 57 min |
| Aug 21, 12:45 AM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail | 45 min |
| Aug 21, 1:30 AM CDT | Severe Thunderstorm Warning | BIS | Burke, Mountrail, Ward | 45 min |
| Aug 21, 7:57 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean, Pierce, Sheridan | 63 min |
| Aug 21, 8:09 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mountrail, Ward | 66 min |
| Aug 21, 8:09 PM CDT | Severe Thunderstorm Warning | BIS | Rolette | 66 min |
| Aug 21, 8:20 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley, Stark | 40 min |
| Aug 21, 8:49 PM CDT | Severe Thunderstorm Warning | BIS | Pierce, Sheridan, Wells | 35 min |
| Aug 21, 8:59 PM CDT | Severe Thunderstorm Warning | BIS | Sheridan | 61 min |
| Aug 21, 9:01 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Dunn, Stark | 44 min |
| Aug 21, 9:20 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 55 min |
| Aug 21, 9:36 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Mercer, Morton, Stark | 54 min |
| Aug 21, 9:46 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley | 44 min |
| Aug 21, 9:58 PM CDT | Severe Thunderstorm Warning | BIS | Mercer, Morton, Oliver | 48 min |
| Aug 21, 10:03 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Ramsey, Towner | 57 min |
| Aug 21, 10:36 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean, Morton, Oliver | 54 min |
| Aug 21, 10:57 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Ramsey, Walsh | 46 min |
| Aug 21, 11:03 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, Stark | 42 min |
| Aug 21, 11:16 PM CDT | Severe Thunderstorm Warning | BIS | Sheridan | 30 min |
| Aug 22, 1:40 AM CDT | Severe Thunderstorm Warning | BIS | Dunn, McLean, Mercer, Morton, Oliver, Stark and 1 more | 50 min |
| Aug 22, 2:21 AM CDT | Severe Thunderstorm Warning | BIS | Burleigh, McLean, Mercer, Oliver, Sheridan | 39 min |
| Aug 22, 3:00 AM CDT | Severe Thunderstorm Warning | BIS | McLean, Sheridan, Wells | 45 min |
| Aug 22, 3:40 AM CDT | Severe Thunderstorm Warning | BIS | Foster, Sheridan, Wells | 32 min |
| Aug 22, 3:54 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 36 min |
| Aug 26, 6:08 PM CDT | Severe Thunderstorm Warning | BIS | Emmons | 67 min |
| Aug 26, 6:39 PM CDT | Severe Thunderstorm Warning | BIS | Kidder | 55 min |
| Aug 26, 6:58 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Pierce | 48 min |
| Aug 26, 7:01 PM CDT | Severe Thunderstorm Warning | BIS | Kidder | 59 min |
| Aug 26, 7:21 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Logan, McIntosh | 54 min |
| Aug 26, 7:58 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder, Sheridan | 47 min |
| Aug 26, 8:15 PM CDT | Severe Thunderstorm Warning | BIS | McIntosh | 24 min |
| Aug 26, 8:21 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Sioux | 54 min |
| Aug 26, 10:16 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass | 45 min |
| Aug 27, 12:21 AM CDT | Severe Thunderstorm Warning | FGF | Cass, Richland | 42 min |
| Sep 5, 4:07 PM CDT | Severe Thunderstorm Warning | BIS | McLean | 23 min |
| Sep 6, 2:31 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 29 min |
| Sep 6, 3:39 PM CDT | Severe Thunderstorm Warning | BIS | Sheridan | 20 min |
| Sep 6, 5:16 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau | 29 min |
| Sep 21, 7:31 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger | 59 min |
| Sep 21, 9:51 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure, Stutsman | 54 min |
| Sep 21, 9:52 PM CDT | Severe Thunderstorm Warning | BIS | Mercer, Morton, Oliver | 38 min |
| Sep 22, 7:17 PM CDT | Severe Thunderstorm Warning | BIS | Kidder, Stutsman | 28 min |
| Sep 22, 7:39 PM CDT | Severe Thunderstorm Warning | BIS | Foster, Stutsman, Wells | 66 min |
| Sep 22, 8:33 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Nelson | 57 min |
| Sep 22, 8:45 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Nelson, Ramsey | 60 min |
| Sep 22, 10:51 PM CDT | Severe Thunderstorm Warning | FGF | Pembina | 39 min |
| Sep 22, 11:26 PM CDT | Severe Thunderstorm Warning | BIS | Wells | 29 min |
| Sep 23, 12:31 AM CDT | Severe Thunderstorm Warning | BIS | Kidder, Stutsman | 44 min |
| Sep 23, 1:54 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Grand Forks, Griggs, Nelson, Ramsey, Steele and 1 more | 66 min |
| Sep 23, 2:14 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 39 min |
| Sep 23, 12:59 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, Renville | 47 min |
| Sep 23, 5:04 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Ramsey, Towner | 26 min |
| Sep 25, 4:09 AM CDT | Severe Thunderstorm Warning | FGF | Richland, Sargent | 66 min |
| Sep 25, 5:35 AM CDT | Severe Thunderstorm Warning | FGF | Richland | 55 min |
| Sep 28, 3:30 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 34 min |
| Nov 5, 3:34 PM CST | Severe Thunderstorm Warning | BIS | Stutsman | 56 min |
| Nov 5, 5:01 PM CST | Severe Thunderstorm Warning | FGF | Cass, Traill | 59 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- McLean County66
- Morton County55
- Mercer County54
- Dunn County47
- Ward County43
- Burleigh County40
- Emmons County39
- Oliver County37
- McHenry County37
- Grant County35
- Mountrail County35
- Sioux County32
- McKenzie County30
- Bottineau County30
- Cass County29
- McIntosh County29
- Williams County27
- Kidder County27
- Logan County25
- Sheridan County24
- Renville County24
- Stark County22
- Richland County21
- Benson County21
- Stutsman County20
- Wells County19
- Ramsey County18
- Hettinger County17
- Divide County17
- Burke County17
- Pierce County17
- Adams County16
- Barnes County16
- Rolette County15
- Nelson County15
- Ransom County14
- LaMoure County14
- Grand Forks County14
- Dickey County13
- Billings County12
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20072009
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.