Alert archive / North Dakota / Severe Thunderstorm Warnings / 2020
Severe Thunderstorm Warnings in North Dakota, August 2020
85 severe thunderstorm warnings in August 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 August 2020. Tap one for its archive.
- Severe Thunderstorm Warnings
- 85
- Busiest day
- August 14, 202025 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 |
|---|---|---|---|---|
| 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 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Traill County10
- Morton County9
- Cass County9
- Grant County8
- Bowman County8
- Stutsman County8
- Adams County7
- Sargent County6
- Hettinger County6
- Logan County6
- Kidder County6
- Ransom County5
- Dickey County5
- Richland County5
- Barnes County5
- Mercer County4
- McHenry County4
- Dunn County4
- Grand Forks County4
- Walsh County4
- Slope County4
- Stark County4
- Sioux County4
- Emmons County4
- Bottineau County3
- Pembina County3
- McLean County3
- Ramsey County3
- Cavalier County3
- LaMoure County3
- Oliver County2
- Mountrail County2
- Burleigh County2
- Ward County2
- Burke County1
- Divide County1
- Pierce County1
- Benson County1
- Nelson County1
- Billings County1
3 more counties
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.