Severe Thunderstorm Warnings in North Dakota
11,949 severe thunderstorm warnings since 1986. 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 since 1986. Tap one for its archive.
- Severe Thunderstorm Warnings
- 11,949
- Busiest year
- 2005548 severe thunderstorm warnings
- Average year
- 291over 41 years on file
Over time
By year
Before October 2007 these were issued for whole counties, and a storm crossing three counties was often three warnings; since then one polygon follows the storm. The count changed with the practice, not only with the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Morton County901
- Cass County730
- McLean County707
- Burleigh County636
- McKenzie County635
- Grant County623
- Ward County606
- Stutsman County571
- Dunn County561
- Grand Forks County538
- Mercer County517
- Williams County512
- McHenry County504
- Emmons County502
- Richland County496
- Mountrail County495
- Barnes County491
- Hettinger County485
- Kidder County473
- Ramsey County466
- Sioux County453
- Benson County451
- Stark County449
- Oliver County446
- Traill County445
- Adams County418
- Steele County414
- Bottineau County412
- Walsh County406
- Logan County398
- Nelson County394
- Billings County383
- Slope County370
- Ransom County367
- Cavalier County355
- LaMoure County354
- McIntosh County352
- Bowman County351
- Griggs County343
- Wells County341
The latest severe thunderstorm warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 7:04 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean, Pierce, Sheridan, Wells | 56 min |
| Sep 7, 6:08 PM CDT | Severe Thunderstorm Warning | BIS | McHenry, McLean, Sheridan, Ward | 67 min |
| Sep 6, 8:14 PM CDT | Severe Thunderstorm Warning | BIS | Dunn, McKenzie | 22 min |
| Sep 6, 6:44 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie | 61 min |
| Sep 6, 6:11 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Walsh | 64 min |
| Sep 6, 6:02 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 43 min |
| Sep 6, 5:15 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Mountrail | 60 min |
| Sep 6, 4:58 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Griggs, Nelson, Steele, Traill | 49 min |
| Sep 6, 12:11 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 49 min |
| Sep 6, 11:11 AM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 64 min |
| Sep 6, 10:32 AM CDT | Severe Thunderstorm Warning | BIS | Mercer, Morton, Oliver, Stark | 58 min |
| Sep 6, 9:50 AM CDT | Severe Thunderstorm Warning | BIS | Dunn, Morton, Stark | 55 min |
Nearby
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. Rebuilt daily.