Alert archive / North Dakota / Severe Thunderstorm Warnings / 2017
Severe Thunderstorm Warnings in North Dakota, August 2017
33 severe thunderstorm warnings in August 2017. 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 August 2017. Tap one for its archive.
- Severe Thunderstorm Warnings
- 33
- Busiest day
- August 12, 201711 severe thunderstorm warnings
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Jul 31, 7:30 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Traill | 60 min |
| Jul 31, 8:00 PM CDT | Severe Thunderstorm Warning | FGF | Steele, Traill | 45 min |
| Jul 31, 8:31 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Steele, Traill | 59 min |
| Jul 31, 9:13 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Ransom, Richland | 62 min |
| Jul 31, 9:23 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom | 52 min |
| Aug 5, 6:14 PM CDT | Severe Thunderstorm Warning | BIS | Adams | 46 min |
| Aug 8, 4:22 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Sioux | 53 min |
| Aug 8, 4:52 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Hettinger, Slope | 35 min |
| Aug 9, 2:43 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 62 min |
| Aug 9, 3:07 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 53 min |
| Aug 9, 3:27 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 34 min |
| Aug 9, 4:29 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Ransom, Richland | 31 min |
| Aug 9, 4:56 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Ransom, Richland | 49 min |
| Aug 11, 6:08 PM CDT | Severe Thunderstorm Warning | BIS | Adams | 42 min |
| Aug 11, 8:06 PM CDT | Severe Thunderstorm Warning | BIS | Golden Valley, McKenzie | 54 min |
| Aug 11, 8:57 PM CDT | Severe Thunderstorm Warning | BIS | Golden Valley | 63 min |
| Aug 11, 9:54 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley | 66 min |
| Aug 11, 10:57 PM CDT | Severe Thunderstorm Warning | BIS | Billings, Golden Valley, Slope, Stark | 63 min |
| Aug 12, 2:13 PM CDT | Severe Thunderstorm Warning | BIS | McIntosh | 62 min |
| Aug 12, 3:39 PM CDT | Severe Thunderstorm Warning | BIS | Bowman | 31 min |
| Aug 12, 4:34 PM CDT | Severe Thunderstorm Warning | BIS | Mercer | 56 min |
| Aug 12, 5:14 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger, Slope, Stark | 61 min |
| Aug 12, 5:36 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 54 min |
| Aug 12, 6:17 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Hettinger | 58 min |
| Aug 12, 6:25 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 65 min |
| Aug 12, 7:15 PM CDT | Severe Thunderstorm Warning | BIS | Adams | 41 min |
| Aug 17, 8:17 PM CDT | Severe Thunderstorm Warning | BIS | Divide, Williams | 58 min |
| Aug 17, 9:10 PM CDT | Severe Thunderstorm Warning | BIS | Divide, Williams | 43 min |
| Aug 17, 9:18 PM CDT | Severe Thunderstorm Warning | BIS | Burke | 37 min |
| Aug 18, 4:24 AM CDT | Severe Thunderstorm Warning | BIS | Foster, Stutsman, Wells | 55 min |
| Aug 26, 4:11 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Hettinger | 64 min |
| Aug 26, 4:50 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Hettinger, Sioux | 55 min |
| Aug 26, 5:11 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Slope | 42 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Adams County8
- Cass County5
- Hettinger County5
- Barnes County4
- Ransom County4
- Slope County4
- Golden Valley County4
- Grant County4
- Traill County3
- Richland County3
- Sioux County3
- Bowman County3
- Steele County2
- Billings County2
- Stark County2
- Divide County2
- Williams County2
- Grand Forks County1
- LaMoure County1
- Dickey County1
- McKenzie County1
- McIntosh County1
- Mercer County1
- Morton County1
- Burke County1
- Foster County1
- Stutsman County1
- Wells County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.