Alert archive / North Dakota / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in North Dakota, 2022

277 severe thunderstorm warnings in 2022. 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 2022. Tap one for its archive.

Severe Thunderstorm Warnings: 277
Busiest month: July111 severe thunderstorm warnings
Busiest day: June 20, 202234 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.

222 of 277 severe thunderstorm warnings covering North Dakota in 2022 had a qualifying storm report inside them; 522 of 605 hail, wind and damage reports fell inside a warning, on average 25 minutes after it went out.

North Dakota, 2022

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Severe thunderstorm warnings	277	222	20%	605	86%	25 min

Each office's whole area, 2022

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Bismarck, ND: severe thunderstorm warnings	159	118	26%	291	88%	24 min
NWS Grand Forks, ND: severe thunderstorm warnings	228	203	11%	743	87%	27 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 22, 9:14 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Richland	46 min
Apr 22, 10:06 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Richland	29 min
Apr 23, 3:11 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Steele, Traill	49 min
Apr 23, 3:56 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Grand Forks, Steele, Traill	49 min
May 7, 3:23 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Mercer, Stark	35 min
May 8, 7:05 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	40 min
May 8, 7:42 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	33 min
May 8, 7:46 PM CDT	Severe Thunderstorm Warning	FGF	Barnes	44 min
May 8, 8:17 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	23 min
May 8, 8:25 PM CDT	Severe Thunderstorm Warning	FGF	Barnes	35 min
May 8, 8:55 PM CDT	Severe Thunderstorm Warning	FGF	Barnes	50 min
May 8, 9:32 PM CDT	Severe Thunderstorm Warning	FGF	Barnes	43 min
May 9, 7:50 AM CDT	Severe Thunderstorm Warning	FGF	Richland	40 min
May 12, 4:36 AM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Emmons, Sioux	39 min
May 12, 5:11 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Mercer, Oliver	49 min
May 12, 5:23 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Griggs, Nelson, Steele	52 min
May 12, 6:42 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Dickey	63 min
May 12, 6:47 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Ransom, Richland, Sargent	58 min
May 12, 7:04 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	LaMoure	56 min
May 12, 7:14 PM CDT	Severe Thunderstorm Warning	BIS	Kidder, Stutsman, Wells	47 min
May 12, 7:47 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Cass, Richland, Traill	58 min
May 17, 7:55 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Bottineau	50 min
May 18, 2:17 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Traill	43 min
May 28, 7:26 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman	44 min
May 29, 8:08 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Walsh	67 min
May 29, 8:47 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	58 min
May 29, 9:46 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Walsh	59 min
May 29, 10:46 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	31 min
May 30, 7:35 PM CDT	Severe Thunderstorm Warning	FGF	Richland	40 min
May 30, 8:24 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Richland	47 min
Jun 13, 5:56 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn	64 min
Jun 13, 6:24 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McLean, Mountrail	66 min
Jun 13, 7:14 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Ward	61 min
Jun 13, 8:02 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	McHenry, McLean, Sheridan, Ward	58 min
Jun 13, 8:54 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, McLean, Pierce, Sheridan	66 min
Jun 13, 8:57 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Sheridan	63 min
Jun 13, 9:54 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	McHenry, Pierce, Sheridan, Wells	66 min
Jun 13, 10:15 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Benson	45 min
Jun 13, 10:51 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Benson, Cavalier, Ramsey, Towner	54 min
Jun 13, 10:56 PM CDT	Severe Thunderstorm Warning	BIS	Wells	34 min
Jun 13, 11:08 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Eddy	52 min
Jun 13, 11:28 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Foster, Wells	47 min
Jun 14, 12:01 AM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Benson, Eddy, Nelson, Ramsey, Walsh	45 min
Jun 14, 4:43 AM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Dickey	64 min
Jun 14, 5:20 AM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	LaMoure	70 min
Jun 14, 5:30 AM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Barnes, Cass, Ransom, Sargent	45 min
Jun 14, 6:00 AM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Barnes, Cass, Griggs, Steele	45 min
Jun 14, 6:32 AM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Grand Forks, Griggs, Nelson, Steele, Traill	43 min
Jun 14, 7:15 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Griggs, Nelson, Ramsey, Steele, Traill and 1 more	45 min
Jun 14, 7:31 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Nelson, Pembina, Walsh	59 min
Jun 14, 8:07 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Nelson, Pembina, Walsh	53 min
Jun 18, 7:54 AM CDT	Severe Thunderstorm Warning	FGF	Pembina	37 min
Jun 19, 8:35 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, McIntosh	55 min
Jun 19, 8:49 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure, Logan, McIntosh	56 min
Jun 19, 9:21 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, Kidder, Logan, McIntosh, Stutsman	54 min
Jun 19, 9:30 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Adams	60 min
Jun 19, 10:12 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Kidder, Stutsman, Wells	48 min
Jun 19, 10:27 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Adams, Grant, Hettinger	63 min
Jun 19, 10:28 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, Logan, McIntosh	62 min
Jun 19, 10:33 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Griggs	42 min
Jun 19, 11:05 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Barnes, Eddy, Grand Forks, Griggs, Nelson, Steele and 1 more	55 min
Jun 19, 11:19 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Grand Forks, Griggs, Steele, Traill	41 min
Jun 19, 11:22 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Grant, Morton	53 min
Jun 19, 11:27 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure, Logan, Stutsman	63 min
Jun 19, 11:52 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Grand Forks, Nelson, Steele, Traill	21 min
Jun 19, 11:53 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	67 min
Jun 20, 12:11 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Griggs, Steele	49 min
Jun 20, 12:24 AM CDT	Severe Thunderstorm Warning	BIS	Morton	36 min
Jun 20, 12:38 AM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Burleigh, Morton	52 min
Jun 20, 12:49 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Griggs, Steele, Traill	25 min
Jun 20, 1:21 AM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Burleigh, Kidder	54 min
Jun 20, 1:58 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder, Sheridan, Wells	47 min
Jun 20, 3:24 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Ramsey, Towner	51 min
Jun 20, 3:20 PM CDT	Severe Thunderstorm Warning	FGF	Traill	55 min
Jun 20, 3:41 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure, Logan, McIntosh	49 min
Jun 20, 3:56 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Traill	64 min
Jun 20, 4:16 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure, Logan, Stutsman	44 min
Jun 20, 4:19 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	41 min
Jun 20, 4:38 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Dickey	67 min
Jun 20, 4:55 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Barnes, Cass, Ransom	65 min
Jun 20, 4:59 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure, Stutsman	31 min
Jun 20, 5:44 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Stark	46 min
Jun 20, 5:47 PM CDT	Severe Thunderstorm Warning	FGF	Ransom, Sargent	17 min
Jun 20, 5:51 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom	54 min
Jun 20, 6:20 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Mercer, Oliver	40 min
Jun 20, 6:26 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Cass, Traill	64 min
Jun 20, 10:46 PM CDT	Severe Thunderstorm Warning	FGF	Richland	59 min
Jun 23, 10:45 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Pembina	45 min
Jun 24, 1:46 PM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	59 min
Jun 24, 2:06 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy	39 min
Jun 24, 2:13 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Cavalier, Pembina, Walsh	47 min
Jun 24, 2:19 PM CDT	Severe Thunderstorm Warning	FGF	Ramsey, Walsh	41 min
Jun 24, 2:42 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Ramsey	63 min
Jun 24, 2:46 PM CDT	Severe Thunderstorm Warning	BIS	Wells	59 min
Jun 24, 2:52 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Cavalier, Pembina, Ramsey, Walsh	53 min
Jun 24, 3:13 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Sheridan	47 min
Jun 24, 3:40 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Cavalier, Nelson, Pembina, Ramsey, Walsh	65 min
Jun 24, 3:45 PM CDT	Severe Thunderstorm Warning	BIS	Wells	60 min
Jun 24, 4:04 PM CDT	Severe Thunderstorm Warning	FGF	Pembina	14 min
Jun 24, 4:09 PM CDT	Severe Thunderstorm Warning	FGF	Ramsey	22 min
Jun 24, 4:19 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Ramsey	41 min
Jun 24, 4:38 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Grand Forks, Griggs, Nelson, Ramsey and 2 more	67 min
Jun 24, 4:40 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Oliver	35 min
Jun 24, 4:52 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Wells	53 min
Jun 24, 4:57 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy	48 min
Jun 24, 5:36 PM CDT	Severe Thunderstorm Warning Destructive damage threat	FGF	Grand Forks, Nelson, Walsh	54 min
Jun 24, 5:39 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Griggs, Nelson, Ramsey	36 min
Jun 24, 5:43 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Grand Forks, Griggs, Nelson, Steele	62 min
Jun 24, 5:49 PM CDT	Severe Thunderstorm Warning	BIS	Sheridan, Wells	56 min
Jun 24, 6:10 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Grand Forks, Steele, Traill	65 min
Jun 24, 6:27 PM CDT	Severe Thunderstorm Warning	BIS	Kidder	48 min
Jun 24, 6:27 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Grand Forks, Walsh	48 min
Jun 24, 6:39 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	51 min
Jun 24, 7:02 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Stutsman	28 min
Jun 24, 7:07 PM CDT	Severe Thunderstorm Warning Destructive damage threat	FGF	Walsh	53 min
Jun 24, 7:08 PM CDT	Severe Thunderstorm Warning	FGF	Griggs, Nelson	40 min
Jun 24, 7:11 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Cass, Grand Forks, Steele, Traill	64 min
Jun 24, 7:22 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Griggs, Steele	38 min
Jun 24, 7:33 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Nelson, Walsh	42 min
Jun 24, 8:25 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure, Logan, McIntosh	50 min
Jun 24, 8:36 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Richland, Traill	54 min
Jun 24, 9:20 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure	40 min
Jun 24, 9:24 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Cass, Richland	66 min
Jun 24, 9:38 PM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland, Sargent	52 min
Jun 24, 11:02 PM CDT	Severe Thunderstorm Warning	FGF	Richland	58 min
Jun 29, 7:56 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Bowman	64 min
Jun 29, 8:24 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Adams, Grant, Hettinger, Sioux	51 min
Jun 29, 8:39 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Adams, Bowman, Hettinger	51 min
Jun 29, 9:10 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Grant, Morton, Sioux	50 min
Jun 29, 9:29 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Hettinger, Sioux	34 min
Jun 29, 9:56 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, Logan, McIntosh	49 min
Jun 29, 10:23 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Logan, McIntosh	54 min
Jun 29, 10:55 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Dickey, LaMoure, McIntosh	50 min
Jun 29, 11:50 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom, Richland, Sargent	40 min
Jun 30, 12:34 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom, Richland	41 min
Jul 2, 6:00 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Divide	60 min
Jul 2, 6:34 PM CDT	Severe Thunderstorm Warning	BIS	Burke, McKenzie, Mountrail, Williams	56 min
Jul 2, 6:45 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Burke, Mountrail, Ward	45 min
Jul 2, 7:19 PM CDT	Severe Thunderstorm Warning	BIS	Golden Valley	56 min
Jul 2, 7:49 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley, Slope	41 min
Jul 2, 8:15 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McLean, Mercer, Mountrail, Ward	60 min
Jul 2, 8:19 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Bowman, Hettinger, Slope	41 min
Jul 2, 8:58 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Adams, Bowman, Hettinger, Slope	47 min
Jul 2, 9:08 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Mercer, Oliver	67 min
Jul 2, 9:39 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Adams	51 min
Jul 2, 10:09 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Mercer, Morton, Oliver, Sheridan	51 min
Jul 2, 10:41 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Morton, Oliver	64 min
Jul 3, 4:59 PM CDT	Severe Thunderstorm Warning	FGF	Richland, Sargent	46 min
Jul 3, 9:40 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Billings, Golden Valley, Slope	65 min
Jul 3, 10:42 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Billings, Bowman, Golden Valley, Slope	63 min
Jul 3, 11:41 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Adams, Bowman, Hettinger, Slope, Stark	64 min
Jul 4, 12:39 AM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Adams, Grant, Hettinger, Morton, Sioux, Stark	66 min
Jul 4, 1:40 AM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton, Sioux	50 min
Jul 5, 4:15 AM CDT	Severe Thunderstorm Warning	BIS	Golden Valley, Slope	60 min
Jul 5, 5:31 AM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Hettinger, Slope	59 min
Jul 5, 5:42 AM CDT	Severe Thunderstorm Warning	BIS	Bowman, Slope	49 min
Jul 5, 6:08 AM CDT	Severe Thunderstorm Warning	BIS	Bowman	67 min
Jul 5, 7:00 AM CDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Hettinger	60 min
Jul 5, 9:35 PM CDT	Severe Thunderstorm Warning	BIS	Williams	55 min
Jul 9, 1:35 AM CDT	Severe Thunderstorm Warning	BIS	Divide, McKenzie, Williams	70 min
Jul 9, 2:37 AM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, Golden Valley, McKenzie	53 min
Jul 9, 2:44 AM CDT	Severe Thunderstorm Warning	BIS	Burke, Divide, McKenzie, Mountrail, Ward, Williams	61 min
Jul 9, 10:38 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	52 min
Jul 9, 11:14 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons	46 min
Jul 10, 12:51 AM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Divide, Williams	54 min
Jul 10, 1:45 AM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Billings, Golden Valley, Slope, Stark	60 min
Jul 10, 2:42 AM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Billings, Dunn, Hettinger, McKenzie, Slope, Stark	78 min
Jul 10, 2:57 AM CDT	Severe Thunderstorm Warning Destructive damage threat	BIS	Billings, Dunn, McKenzie	33 min
Jul 10, 3:28 AM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Dunn, McLean, Mercer, Oliver	62 min
Jul 10, 3:39 AM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Grant, Morton, Stark	66 min
Jul 10, 4:13 AM CDT	Severe Thunderstorm Warning	BIS	McHenry, Ward	62 min
Jul 10, 4:25 AM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Burleigh, Emmons, Grant, McLean, Morton, Oliver	65 min
Jul 10, 5:01 AM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Bottineau, McHenry, Pierce, Rolette	44 min
Jul 10, 5:08 AM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Burleigh, Kidder, McLean, Sheridan, Wells	52 min
Jul 10, 5:27 AM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Emmons, Logan, McIntosh	48 min
Jul 10, 6:50 AM CDT	Severe Thunderstorm Warning	BIS	Stutsman	40 min
Jul 10, 6:55 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Grand Forks, Griggs, Nelson, Ramsey and 3 more	65 min
Jul 10, 6:59 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Griggs	61 min
Jul 10, 7:35 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Traill, Walsh	55 min
Jul 10, 8:33 AM CDT	Severe Thunderstorm Warning	FGF	Cass, Richland	57 min
Jul 10, 12:10 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass	65 min
Jul 10, 12:24 PM CDT	Severe Thunderstorm Warning	FGF	Cass	66 min
Jul 10, 12:42 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom	63 min
Jul 10, 1:17 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom, Richland	43 min
Jul 10, 1:50 PM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland	55 min
Jul 14, 12:36 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Nelson, Ramsey	32 min
Jul 15, 12:59 AM CDT	Severe Thunderstorm Warning	FGF	Cass, Traill	46 min
Jul 15, 1:40 AM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Cass, Traill	65 min
Jul 15, 2:38 AM CDT	Severe Thunderstorm Warning	FGF	Cass, Richland	34 min
Jul 15, 3:43 AM CDT	Severe Thunderstorm Warning	FGF	Cass, Richland	47 min
Jul 15, 11:19 PM CDT	Severe Thunderstorm Warning	BIS	Golden Valley, McKenzie	56 min
Jul 17, 6:40 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Divide	65 min
Jul 18, 9:19 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Divide, Williams	56 min
Jul 18, 10:13 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Burke, Divide, Williams	62 min
Jul 18, 11:02 PM CDT	Severe Thunderstorm Warning	BIS	Divide, Williams	58 min
Jul 18, 11:15 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Burke, Divide, Mountrail, Ward, Williams	41 min
Jul 18, 11:30 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Bottineau, Burke, Renville, Ward	38 min
Jul 18, 11:59 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Burke, Mountrail, Williams	61 min
Jul 19, 12:45 AM CDT	Severe Thunderstorm Warning	BIS	Burke, Mountrail, Renville, Ward	60 min
Jul 19, 1:19 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	56 min
Jul 19, 1:45 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Burke, McHenry, Mountrail, Renville, Ward	60 min
Jul 19, 2:13 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Walsh	29 min
Jul 19, 2:23 AM CDT	Severe Thunderstorm Warning	BIS	Ward	37 min
Jul 19, 3:35 AM CDT	Severe Thunderstorm Warning	BIS	Rolette	40 min
Jul 19, 3:37 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier	38 min
Jul 19, 3:48 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Cavalier, Ramsey, Towner	57 min
Jul 19, 4:10 AM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Cavalier, Towner	50 min
Jul 19, 4:42 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Pembina, Ramsey, Towner, Walsh	48 min
Jul 19, 5:21 AM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Cavalier, Pembina, Walsh	54 min
Jul 19, 6:11 AM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	64 min
Jul 20, 6:29 PM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland, Sargent	61 min
Jul 20, 6:57 PM CDT	Severe Thunderstorm Warning	FGF	Sargent	33 min
Jul 21, 3:51 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton, Oliver	54 min
Jul 21, 4:33 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Kidder	57 min
Jul 21, 4:44 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Morton, Oliver	61 min
Jul 21, 5:37 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Burleigh, Emmons, Morton, Sioux	53 min
Jul 21, 5:39 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Logan, McIntosh	66 min
Jul 21, 6:19 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Emmons, McIntosh	56 min
Jul 21, 6:30 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, McIntosh	45 min
Jul 21, 7:12 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Emmons, McIntosh	33 min
Jul 21, 7:31 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	44 min
Jul 21, 7:58 PM CDT	Severe Thunderstorm Warning	FGF	Barnes	25 min
Jul 21, 8:00 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure	45 min
Jul 21, 8:28 PM CDT	Severe Thunderstorm Warning	FGF	Cass	47 min
Jul 21, 8:48 PM CDT	Severe Thunderstorm Warning	BIS	Logan	42 min
Jul 21, 9:15 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure, Logan, McIntosh	45 min
Jul 21, 9:52 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	41 min
Jul 22, 7:54 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Burke, Renville	66 min
Jul 22, 8:34 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Renville, Ward	26 min
Jul 22, 8:49 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Bottineau, McHenry, Renville, Ward	56 min
Jul 22, 9:42 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Bottineau, McHenry, Pierce, Rolette	63 min
Jul 22, 10:19 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Cavalier, Ramsey, Towner	56 min
Jul 22, 10:33 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Benson, Ramsey	42 min
Jul 22, 10:39 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Pierce, Wells	43 min
Jul 22, 11:03 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Benson, Cavalier, Eddy, Nelson, Pembina, Ramsey and 2 more	57 min
Jul 22, 11:14 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Benson, Eddy	46 min
Jul 22, 11:52 PM CDT	Severe Thunderstorm Warning Considerable damage threat	FGF	Grand Forks, Nelson, Ramsey, Walsh	53 min
Jul 23, 12:00 AM CDT	Severe Thunderstorm Warning Destructive damage threat	FGF	Barnes, Eddy, Grand Forks, Griggs, Nelson, Steele and 1 more	45 min
Jul 23, 12:43 AM CDT	Severe Thunderstorm Warning Destructive damage threat	FGF	Grand Forks, Griggs, Steele, Traill	62 min
Jul 23, 3:32 AM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton, Sioux	43 min
Jul 23, 5:23 AM CDT	Severe Thunderstorm Warning	BIS	Emmons, McIntosh	52 min
Jul 25, 9:24 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Grant, Hettinger, Mercer, Morton, Oliver and 1 more	51 min
Jul 30, 7:53 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Mountrail, Williams	52 min
Jul 30, 8:45 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie, McLean, Mountrail, Williams	60 min
Jul 31, 1:04 AM CDT	Severe Thunderstorm Warning	BIS	Foster, Wells	56 min
Jul 31, 1:04 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Griggs, Nelson	26 min
Aug 5, 6:58 PM CDT	Severe Thunderstorm Warning	FGF	Cass	62 min
Aug 5, 9:20 PM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland, Sargent	55 min
Aug 5, 10:08 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Richland	42 min
Aug 15, 7:59 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Rolette	61 min
Aug 15, 8:05 PM CDT	Severe Thunderstorm Warning	BIS	Morton	22 min
Aug 17, 6:24 PM CDT	Severe Thunderstorm Warning	BIS	Divide, Williams	51 min
Aug 17, 7:15 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	45 min
Aug 17, 7:57 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	48 min
Aug 17, 9:41 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, Kidder, Logan, Stutsman	49 min
Aug 18, 12:43 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Towner	47 min
Aug 18, 12:59 AM CDT	Severe Thunderstorm Warning	BIS	McHenry, Pierce	61 min
Aug 18, 1:12 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Towner	63 min
Aug 18, 2:31 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Ramsey, Towner	59 min
Aug 23, 3:50 PM CDT	Severe Thunderstorm Warning	BIS	Mountrail, Ward	55 min
Aug 23, 3:54 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Ward	66 min
Aug 23, 4:21 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Mountrail	54 min
Aug 23, 4:22 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Ward	68 min
Aug 23, 5:15 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Sheridan	60 min
Aug 23, 5:36 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Rolette	54 min
Aug 23, 5:54 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Burleigh, McLean, Morton, Oliver	66 min
Aug 23, 5:58 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Mercer	32 min
Aug 23, 7:34 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Morton	56 min
Aug 26, 10:29 PM CDT	Severe Thunderstorm Warning	BIS	Williams	46 min
Sep 19, 5:29 AM CDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger, Morton	61 min
Sep 19, 5:38 AM CDT	Severe Thunderstorm Warning	BIS	Hettinger	23 min
Sep 19, 7:10 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Morton	50 min
Sep 19, 7:56 AM CDT	Severe Thunderstorm Warning	BIS	Kidder, Logan, Stutsman	49 min
Sep 19, 8:44 AM CDT	Severe Thunderstorm Warning	BIS	LaMoure, Logan, Stutsman	31 min
Sep 19, 10:55 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Griggs, Steele	50 min
Sep 19, 11:23 AM CDT	Severe Thunderstorm Warning	FGF	Eddy, Griggs, Nelson	37 min
Sep 19, 11:49 AM CDT	Severe Thunderstorm Warning	FGF	Eddy, Griggs, Nelson	56 min

By county

Every county with at least one alert. A county page lists each alert that covered it.

13 more counties

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2021 2023

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.