Alert archive / North Dakota / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in North Dakota, 2020

465 severe thunderstorm warnings in 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 2020. Tap one for its archive.

Severe Thunderstorm Warnings: 465
Busiest month: July191 severe thunderstorm warnings
Busiest day: June 8, 202041 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.

314 of 465 severe thunderstorm warnings covering North Dakota in 2020 had a qualifying storm report inside them; 558 of 662 hail, wind and damage reports fell inside a warning, on average 26 minutes after it went out.

North Dakota, 2020

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Severe thunderstorm warnings	465	314	32%	662	84%	26 min

Each office's whole area, 2020

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Bismarck, ND: severe thunderstorm warnings	291	171	41%	339	83%	25 min
NWS Grand Forks, ND: severe thunderstorm warnings	308	261	15%	707	85%	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
Mar 4, 3:12 PM CST	Severe Thunderstorm Warning	BIS	Grant, Hettinger, Morton, Stark	48 min
Mar 31, 7:07 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	23 min
Mar 31, 7:29 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	46 min
May 3, 7:14 PM CDT	Severe Thunderstorm Warning	BIS	Golden Valley	46 min
May 22, 6:23 PM CDT	Severe Thunderstorm Warning	BIS	Mountrail	31 min
May 23, 7:11 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger, Stark	49 min
May 23, 7:43 PM CDT	Severe Thunderstorm Warning	BIS	Morton, Stark	21 min
Jun 2, 7:00 AM CDT	Severe Thunderstorm Warning	BIS	Emmons, Logan, McIntosh	45 min
Jun 2, 7:39 AM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure, Logan, McIntosh	51 min
Jun 2, 8:36 AM CDT	Severe Thunderstorm Warning	BIS	Dickey	24 min
Jun 6, 9:09 AM CDT	Severe Thunderstorm Warning	BIS	McLean	28 min
Jun 6, 9:32 AM CDT	Severe Thunderstorm Warning	BIS	Burke, Divide	43 min
Jun 6, 8:40 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Hettinger, Slope	65 min
Jun 6, 9:35 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	55 min
Jun 6, 9:47 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Hettinger, Slope, Stark	58 min
Jun 6, 10:24 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton, Sioux	51 min
Jun 7, 12:11 AM CDT	Severe Thunderstorm Warning	BIS	McHenry, Ward	49 min
Jun 7, 12:39 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry, Pierce, Rolette	32 min
Jun 7, 12:51 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Ramsey	39 min
Jun 7, 1:14 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Ramsey	10 min
Jun 7, 1:46 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	44 min
Jun 7, 5:05 PM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	55 min
Jun 7, 5:18 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Pembina, Walsh	57 min
Jun 7, 6:04 PM CDT	Severe Thunderstorm Warning	BIS	McIntosh	56 min
Jun 7, 6:28 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder	47 min
Jun 7, 6:34 PM CDT	Severe Thunderstorm Warning	FGF	Pembina	56 min
Jun 7, 6:48 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, Kidder, Logan	57 min
Jun 7, 7:19 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Ramsey	30 min
Jun 7, 7:22 PM CDT	Severe Thunderstorm Warning	BIS	Foster	23 min
Jun 7, 7:24 PM CDT	Severe Thunderstorm Warning	BIS	Logan, McIntosh	51 min
Jun 7, 7:25 PM CDT	Severe Thunderstorm Warning	FGF	Eddy	35 min
Jun 7, 7:26 PM CDT	Severe Thunderstorm Warning	BIS	Kidder, Stutsman	64 min
Jun 7, 7:26 PM CDT	Severe Thunderstorm Warning	FGF	Pembina	64 min
Jun 7, 7:34 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Hettinger	56 min
Jun 7, 7:41 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Griggs, Steele	64 min
Jun 7, 7:49 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Wells	26 min
Jun 7, 7:53 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy	52 min
Jun 7, 8:00 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Ramsey	45 min
Jun 7, 8:12 PM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	48 min
Jun 7, 8:14 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Nelson, Ramsey	46 min
Jun 7, 8:19 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Stutsman, Wells	56 min
Jun 7, 8:26 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger, Morton, Stark	64 min
Jun 7, 8:30 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	60 min
Jun 7, 8:30 PM CDT	Severe Thunderstorm Warning	FGF	Nelson, Ramsey, Walsh	45 min
Jun 7, 8:31 PM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	44 min
Jun 7, 8:38 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Griggs, Nelson, Steele	67 min
Jun 7, 8:39 PM CDT	Severe Thunderstorm Warning	FGF	Pembina	51 min
Jun 7, 8:49 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Grand Forks, Steele, Traill	56 min
Jun 7, 8:57 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom, Traill	48 min
Jun 7, 8:58 PM CDT	Severe Thunderstorm Warning	FGF	Pembina	47 min
Jun 7, 9:06 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure	31 min
Jun 7, 9:11 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Ransom, Richland, Sargent	64 min
Jun 7, 9:17 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Pembina, Traill, Walsh	43 min
Jun 7, 9:23 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Grand Forks, Traill	67 min
Jun 7, 9:24 PM CDT	Severe Thunderstorm Warning	BIS	Morton	51 min
Jun 7, 9:48 PM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland, Sargent	42 min
Jun 7, 9:57 PM CDT	Severe Thunderstorm Warning	BIS	Sheridan	26 min
Jun 7, 10:01 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Morton, Oliver	44 min
Jun 7, 10:04 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	41 min
Jun 7, 10:23 PM CDT	Severe Thunderstorm Warning	FGF	Richland	39 min
Jun 7, 11:21 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom, Sargent	39 min
Jun 7, 11:55 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Richland, Traill	50 min
Jun 8, 12:20 AM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure	25 min
Jun 8, 2:58 PM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	62 min
Jun 8, 3:06 PM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	54 min
Jun 8, 4:25 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Nelson, Steele	65 min
Jun 8, 4:52 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Steele	53 min
Jun 8, 5:28 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Walsh	47 min
Jun 9, 2:05 AM CDT	Severe Thunderstorm Warning	FGF	Richland	55 min
Jun 11, 3:37 PM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	53 min
Jun 11, 4:29 PM CDT	Severe Thunderstorm Warning	FGF	Walsh	33 min
Jun 14, 4:47 PM CDT	Severe Thunderstorm Warning	BIS	Bowman	43 min
Jun 14, 5:17 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman	43 min
Jun 14, 5:50 PM CDT	Severe Thunderstorm Warning	BIS	Golden Valley	55 min
Jun 14, 5:58 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Hettinger	62 min
Jun 14, 6:22 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley	53 min
Jun 14, 6:35 PM CDT	Severe Thunderstorm Warning	BIS	Hettinger, Stark	40 min
Jun 14, 6:40 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Hettinger, Slope	50 min
Jun 14, 6:55 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	65 min
Jun 14, 7:14 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn	61 min
Jun 14, 7:14 PM CDT	Severe Thunderstorm Warning	BIS	Morton, Stark	46 min
Jun 14, 7:40 PM CDT	Severe Thunderstorm Warning	BIS	Hettinger, Stark	35 min
Jun 14, 7:49 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie	23 min
Jun 14, 7:59 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Mountrail	61 min
Jun 14, 8:56 PM CDT	Severe Thunderstorm Warning	BIS	Mountrail	49 min
Jun 14, 9:20 PM CDT	Severe Thunderstorm Warning	BIS	Burke	55 min
Jun 15, 12:33 AM CDT	Severe Thunderstorm Warning	BIS	Mountrail	42 min
Jun 15, 1:13 AM CDT	Severe Thunderstorm Warning	BIS	Mountrail, Renville, Ward	47 min
Jun 15, 1:42 AM CDT	Severe Thunderstorm Warning	BIS	Burke, Mountrail	48 min
Jun 15, 1:48 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Renville	31 min
Jun 15, 1:53 AM CDT	Severe Thunderstorm Warning	BIS	Burke, Mountrail, Renville, Ward	37 min
Jun 15, 2:24 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Burke, Renville, Ward	55 min
Jun 16, 10:26 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	64 min
Jun 16, 10:28 PM CDT	Severe Thunderstorm Warning	BIS	Mountrail, Renville, Ward	62 min
Jun 16, 10:32 PM CDT	Severe Thunderstorm Warning	BIS	Mountrail	43 min
Jun 16, 10:56 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Renville, Ward	34 min
Jun 16, 11:05 PM CDT	Severe Thunderstorm Warning	BIS	Morton, Oliver	34 min
Jun 16, 11:13 PM CDT	Severe Thunderstorm Warning	BIS	Dunn	30 min
Jun 16, 11:21 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Renville	39 min
Jun 16, 11:51 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Renville	38 min
Jun 17, 12:09 AM CDT	Severe Thunderstorm Warning	BIS	Mountrail, Ward	51 min
Jun 17, 12:49 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry, Renville	56 min
Jun 17, 1:32 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder	21 min
Jun 17, 5:53 PM CDT	Severe Thunderstorm Warning	FGF	Nelson, Ramsey, Walsh	52 min
Jun 17, 6:00 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure, Stutsman	30 min
Jun 17, 6:10 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Griggs, Steele	65 min
Jun 17, 6:34 PM CDT	Severe Thunderstorm Warning	FGF	Nelson, Walsh	41 min
Jun 17, 6:38 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Pembina, Walsh	37 min
Jun 17, 6:45 PM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	60 min
Jun 17, 7:03 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Steele, Traill	42 min
Jun 17, 7:17 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Steele, Traill	58 min
Jun 17, 7:39 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Steele, Traill, Walsh	51 min
Jun 17, 7:43 PM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	47 min
Jun 17, 8:10 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Grand Forks, Steele, Traill	65 min
Jun 17, 8:33 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Steele, Traill	42 min
Jun 17, 8:39 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Traill	66 min
Jun 17, 8:51 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Steele, Traill	39 min
Jun 17, 8:58 PM CDT	Severe Thunderstorm Warning	FGF	Cass	47 min
Jun 17, 9:13 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Grand Forks, Steele, Traill	62 min
Jun 17, 9:19 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	56 min
Jun 17, 9:25 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	50 min
Jun 17, 10:12 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Grand Forks, Steele, Traill	63 min
Jun 18, 1:34 AM CDT	Severe Thunderstorm Warning	FGF	Cass, Steele, Traill	26 min
Jun 20, 1:25 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Griggs, Steele	18 min
Jun 20, 1:40 PM CDT	Severe Thunderstorm Warning	FGF	Griggs	23 min
Jun 20, 3:05 PM CDT	Severe Thunderstorm Warning	FGF	Griggs, Steele	20 min
Jun 20, 3:22 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	26 min
Jun 20, 3:56 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure	49 min
Jun 20, 4:08 PM CDT	Severe Thunderstorm Warning	FGF	Pembina	37 min
Jun 20, 4:59 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	46 min
Jun 20, 5:38 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	52 min
Jun 20, 6:05 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Ransom, Richland	25 min
Jun 25, 12:22 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Ramsey	53 min
Jun 25, 12:58 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Griggs, Nelson, Ramsey, Walsh	62 min
Jun 25, 2:01 PM CDT	Severe Thunderstorm Warning	FGF	Griggs, Nelson	44 min
Jun 25, 2:33 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Griggs, Nelson, Steele	57 min
Jun 25, 2:59 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Steele, Traill	33 min
Jun 25, 4:16 PM CDT	Severe Thunderstorm Warning	FGF	Traill	31 min
Jun 28, 3:46 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry	44 min
Jun 28, 3:53 PM CDT	Severe Thunderstorm Warning	BIS	McHenry	37 min
Jun 28, 4:25 PM CDT	Severe Thunderstorm Warning	BIS	McLean	50 min
Jun 28, 4:27 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry	63 min
Jun 28, 4:48 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Ward	42 min
Jun 28, 4:51 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Mercer	23 min
Jun 28, 5:23 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Ward	67 min
Jun 28, 6:00 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Renville, Ward	45 min
Jun 28, 6:00 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Mercer, Morton, Oliver	60 min
Jun 28, 6:35 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Renville	35 min
Jun 28, 7:04 PM CDT	Severe Thunderstorm Warning	BIS	Morton, Oliver	56 min
Jun 28, 7:16 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman	59 min
Jun 28, 7:24 PM CDT	Severe Thunderstorm Warning	BIS	Renville, Ward	66 min
Jun 28, 7:37 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau	38 min
Jun 28, 7:45 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton, Oliver	60 min
Jun 28, 7:50 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	55 min
Jun 28, 7:52 PM CDT	Severe Thunderstorm Warning	BIS	Morton	53 min
Jun 28, 8:13 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau	47 min
Jun 28, 8:43 PM CDT	Severe Thunderstorm Warning	BIS	Morton, Sioux	62 min
Jun 28, 9:26 PM CDT	Severe Thunderstorm Warning	BIS	Sioux	45 min
Jun 29, 5:50 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley, McKenzie	55 min
Jun 29, 6:24 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie	51 min
Jun 29, 6:45 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley, McKenzie	30 min
Jun 29, 7:07 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie	53 min
Jun 29, 7:10 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie	65 min
Jun 29, 7:12 PM CDT	Severe Thunderstorm Warning	BIS	Billings	48 min
Jun 29, 7:51 PM CDT	Severe Thunderstorm Warning	BIS	Dunn	39 min
Jun 29, 8:15 PM CDT	Severe Thunderstorm Warning	BIS	Hettinger, Stark	30 min
Jun 29, 8:16 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie, McLean, Mountrail	59 min
Jun 29, 8:29 PM CDT	Severe Thunderstorm Warning	BIS	Dunn	61 min
Jun 29, 8:30 PM CDT	Severe Thunderstorm Warning	BIS	Stark	39 min
Jun 29, 9:06 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Hettinger, Stark	54 min
Jun 29, 9:15 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Mountrail, Ward	60 min
Jun 29, 9:37 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Hettinger	38 min
Jun 30, 3:00 AM CDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Sioux	45 min
Jun 30, 5:55 AM CDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	65 min
Jun 30, 8:06 AM CDT	Severe Thunderstorm Warning	BIS	Emmons, Morton, Sioux	39 min
Jun 30, 8:34 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Morton	56 min
Jun 30, 9:30 AM CDT	Severe Thunderstorm Warning	BIS	McLean	45 min
Jun 30, 12:32 PM CDT	Severe Thunderstorm Warning	BIS	Kidder	43 min
Jun 30, 1:00 PM CDT	Severe Thunderstorm Warning	BIS	Wells	45 min
Jun 30, 2:38 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Pierce, Sheridan, Wells	52 min
Jun 30, 3:36 PM CDT	Severe Thunderstorm Warning	FGF	Benson	54 min
Jun 30, 3:41 PM CDT	Severe Thunderstorm Warning	BIS	Pierce, Wells	49 min
Jun 30, 4:28 PM CDT	Severe Thunderstorm Warning	FGF	Benson	62 min
Jun 30, 4:29 PM CDT	Severe Thunderstorm Warning	BIS	Pierce, Wells	32 min
Jun 30, 7:59 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy	27 min
Jun 30, 8:23 PM CDT	Severe Thunderstorm Warning	FGF	Griggs, Nelson, Steele	52 min
Jun 30, 8:45 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Griggs, Steele	30 min
Jun 30, 9:10 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Grand Forks, Griggs, Nelson, Steele	50 min
Jun 30, 9:40 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Eddy, Griggs, Nelson, Steele	50 min
Jul 2, 4:49 PM CDT	Severe Thunderstorm Warning	BIS	Dunn	41 min
Jul 2, 5:08 PM CDT	Severe Thunderstorm Warning	BIS	Hettinger, Stark	67 min
Jul 2, 5:30 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McLean, Mercer	45 min
Jul 2, 5:47 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Mountrail, Ward	43 min
Jul 2, 5:56 PM CDT	Severe Thunderstorm Warning	BIS	Hettinger, Stark	64 min
Jul 2, 6:06 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Mercer	54 min
Jul 2, 6:23 PM CDT	Severe Thunderstorm Warning	BIS	Hettinger, Slope, Stark	35 min
Jul 2, 6:29 PM CDT	Severe Thunderstorm Warning	BIS	Mountrail, Renville, Ward	46 min
Jul 2, 7:19 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry, Renville	41 min
Jul 2, 7:28 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, McLean, Ward	27 min
Jul 3, 10:56 PM CDT	Severe Thunderstorm Warning	BIS	Adams	34 min
Jul 3, 11:00 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	45 min
Jul 3, 11:37 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman	38 min
Jul 4, 12:13 AM CDT	Severe Thunderstorm Warning	BIS	Adams, Hettinger	62 min
Jul 4, 2:26 AM CDT	Severe Thunderstorm Warning	FGF	Pembina	39 min
Jul 4, 3:37 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure	53 min
Jul 4, 4:26 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure	64 min
Jul 4, 4:27 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure, Logan	48 min
Jul 4, 5:08 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Ransom, Richland	19 min
Jul 4, 5:10 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure, Logan, McIntosh	65 min
Jul 4, 5:25 PM CDT	Severe Thunderstorm Warning	BIS	McIntosh	65 min
Jul 4, 5:57 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure, Logan, McIntosh	63 min
Jul 4, 6:02 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	58 min
Jul 4, 6:44 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	31 min
Jul 4, 10:13 PM CDT	Severe Thunderstorm Warning	BIS	Bowman, Slope	62 min
Jul 4, 11:09 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Bowman, Slope, Stark	51 min
Jul 5, 12:05 AM CDT	Severe Thunderstorm Warning	BIS	Divide, Williams	55 min
Jul 5, 12:39 AM CDT	Severe Thunderstorm Warning	BIS	Divide, Williams	66 min
Jul 5, 1:27 AM CDT	Severe Thunderstorm Warning	BIS	Burke, Divide, Mountrail, Ward, Williams	63 min
Jul 5, 3:24 PM CDT	Severe Thunderstorm Warning	BIS	Hettinger, Slope, Stark	39 min
Jul 5, 3:51 PM CDT	Severe Thunderstorm Warning	BIS	Hettinger, Stark	39 min
Jul 5, 4:07 PM CDT	Severe Thunderstorm Warning	FGF	Sargent	53 min
Jul 5, 4:12 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger, Morton, Stark	63 min
Jul 5, 4:39 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	66 min
Jul 5, 4:46 PM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland, Sargent	44 min
Jul 5, 5:04 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Richland	41 min
Jul 5, 5:31 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	38 min
Jul 5, 5:41 PM CDT	Severe Thunderstorm Warning	BIS	Morton	21 min
Jul 5, 5:53 PM CDT	Severe Thunderstorm Warning	BIS	Grant	36 min
Jul 5, 6:24 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman	39 min
Jul 5, 6:42 PM CDT	Severe Thunderstorm Warning	BIS	Divide	63 min
Jul 5, 7:32 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Divide	58 min
Jul 6, 4:10 PM CDT	Severe Thunderstorm Warning	FGF	Cass	50 min
Jul 7, 8:33 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Bowman, Golden Valley, Slope	57 min
Jul 7, 8:43 PM CDT	Severe Thunderstorm Warning	BIS	Divide, McKenzie, Williams	62 min
Jul 7, 9:29 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Billings, Bowman, Dunn, Golden Valley, Hettinger and 2 more	61 min
Jul 7, 9:34 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, Golden Valley, McKenzie	56 min
Jul 7, 9:44 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Divide, McKenzie, Mountrail, Williams	61 min
Jul 7, 10:13 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Grant, Hettinger, Mercer, Morton, Oliver and 1 more	62 min
Jul 7, 10:29 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman	46 min
Jul 7, 10:30 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Mountrail, Renville, Ward	45 min
Jul 7, 11:06 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Grant, McLean, Mercer, Morton, Oliver	54 min
Jul 7, 11:12 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry, McLean, Mountrail, Renville, Ward	63 min
Jul 7, 11:53 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder, McLean, Sheridan, Wells	67 min
Jul 8, 12:11 AM CDT	Severe Thunderstorm Warning	BIS	Stutsman	64 min
Jul 8, 12:14 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry, Pierce, Rolette, Ward	61 min
Jul 8, 12:29 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Griggs	61 min
Jul 8, 12:43 AM CDT	Severe Thunderstorm Warning	BIS	Foster, Kidder, Stutsman, Wells	62 min
Jul 8, 12:44 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Griggs, Nelson, Ramsey, Towner	46 min
Jul 8, 1:08 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom, Richland	52 min
Jul 8, 1:15 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom, Richland	60 min
Jul 8, 1:29 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Grand Forks, Griggs, Nelson, Steele	61 min
Jul 8, 1:32 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Griggs, Steele, Traill	58 min
Jul 8, 1:33 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Cavalier, Nelson, Ramsey, Towner, Walsh	57 min
Jul 8, 2:12 AM CDT	Severe Thunderstorm Warning	FGF	Cass, Richland	63 min
Jul 8, 2:18 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Grand Forks, Steele, Traill	57 min
Jul 8, 2:22 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Grand Forks, Nelson, Pembina, Ramsey, Walsh	53 min
Jul 8, 3:22 AM CDT	Severe Thunderstorm Warning	FGF	Cass, Richland, Sargent	38 min
Jul 8, 3:58 AM CDT	Severe Thunderstorm Warning	FGF	Richland	62 min
Jul 8, 4:23 AM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland, Sargent	52 min
Jul 8, 5:00 AM CDT	Severe Thunderstorm Warning	FGF	Richland	60 min
Jul 8, 10:52 PM CDT	Severe Thunderstorm Warning	FGF	Richland	53 min
Jul 8, 11:36 PM CDT	Severe Thunderstorm Warning	FGF	Richland	12 min
Jul 9, 12:33 AM CDT	Severe Thunderstorm Warning	FGF	Richland	27 min
Jul 9, 12:50 AM CDT	Severe Thunderstorm Warning	FGF	Richland	40 min
Jul 10, 3:04 PM CDT	Severe Thunderstorm Warning	BIS	Golden Valley, Slope	56 min
Jul 10, 3:48 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Slope, Stark	57 min
Jul 10, 5:29 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger	48 min
Jul 10, 6:05 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley, McKenzie	40 min
Jul 10, 6:11 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	64 min
Jul 10, 6:43 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, Stark	26 min
Jul 10, 7:11 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, Sioux	49 min
Jul 10, 7:59 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, Logan, McIntosh	49 min
Jul 10, 8:13 PM CDT	Severe Thunderstorm Warning	BIS	Bowman	29 min
Jul 12, 8:36 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Mountrail, Williams	25 min
Jul 12, 9:09 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Mountrail, Ward	51 min
Jul 12, 9:12 PM CDT	Severe Thunderstorm Warning	BIS	Mountrail	48 min
Jul 12, 10:34 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Slope, Stark	34 min
Jul 12, 10:55 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Renville, Ward	20 min
Jul 12, 11:28 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley	62 min
Jul 12, 11:30 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Morton, Stark	60 min
Jul 12, 11:32 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley	43 min
Jul 12, 11:59 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McLean, Mercer, Morton, Oliver, Stark	61 min
Jul 13, 12:05 AM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, Golden Valley, McKenzie, Stark	55 min
Jul 13, 12:24 AM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, Stark	66 min
Jul 13, 12:53 AM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley, Stark	38 min
Jul 13, 1:03 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, McLean, Mercer, Mountrail	42 min
Jul 13, 1:40 AM CDT	Severe Thunderstorm Warning	BIS	McHenry, McLean, Mercer, Sheridan, Ward	41 min
Jul 13, 2:45 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, Mercer	45 min
Jul 13, 3:29 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, Mercer, Stark	46 min
Jul 13, 3:50 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, Mercer, Morton, Oliver	40 min
Jul 13, 4:13 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, McLean, Mercer, Oliver	23 min
Jul 13, 11:05 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Ramsey, Towner	55 min
Jul 13, 11:23 AM CDT	Severe Thunderstorm Warning	BIS	Pierce, Rolette	24 min
Jul 13, 11:48 AM CDT	Severe Thunderstorm Warning	BIS	Pierce, Rolette	57 min
Jul 13, 11:54 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Towner	38 min
Jul 17, 11:56 AM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Mountrail, Ward	64 min
Jul 17, 1:04 PM CDT	Severe Thunderstorm Warning	BIS	Mountrail, Ward	41 min
Jul 17, 1:08 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Rolette	67 min
Jul 17, 1:17 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Ward	58 min
Jul 17, 2:01 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Towner	59 min
Jul 17, 2:03 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry, Pierce, Rolette	57 min
Jul 17, 2:06 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Ward	54 min
Jul 17, 2:22 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Cavalier, Ramsey, Towner	53 min
Jul 17, 2:33 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Pembina	57 min
Jul 17, 2:56 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Cavalier, Pembina, Ramsey, Towner, Walsh	64 min
Jul 17, 2:58 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Pierce	47 min
Jul 17, 3:21 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Ramsey	54 min
Jul 17, 3:42 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Pierce	48 min
Jul 17, 3:54 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Grand Forks, Nelson, Pembina, Ramsey, Walsh	51 min
Jul 17, 4:09 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Nelson, Ramsey	66 min
Jul 17, 4:13 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Ramsey	62 min
Jul 17, 4:18 PM CDT	Severe Thunderstorm Warning	FGF	Pembina	57 min
Jul 17, 4:23 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Nelson, Pembina, Walsh	67 min
Jul 17, 4:48 PM CDT	Severe Thunderstorm Warning	BIS	McHenry	57 min
Jul 17, 4:49 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Nelson, Ramsey	41 min
Jul 17, 4:58 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Traill	62 min
Jul 17, 5:10 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Nelson, Ramsey, Towner	65 min
Jul 17, 5:20 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, McLean, Sheridan, Ward	25 min
Jul 17, 5:21 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Traill	54 min
Jul 17, 5:25 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Nelson, Ramsey	65 min
Jul 17, 5:39 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Ramsey	66 min
Jul 17, 5:44 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, McLean, Pierce, Sheridan	61 min
Jul 17, 5:54 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Traill	66 min
Jul 17, 6:01 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Pierce, Sheridan, Wells	59 min
Jul 17, 6:04 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Stutsman, Wells	56 min
Jul 17, 6:35 PM CDT	Severe Thunderstorm Warning	FGF	Eddy, Griggs, Steele	55 min
Jul 17, 6:39 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Oliver	66 min
Jul 17, 6:53 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder, Sheridan, Wells	67 min
Jul 17, 7:22 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	53 min
Jul 17, 7:26 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Griggs, Steele	64 min
Jul 17, 7:29 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Steele, Traill	46 min
Jul 17, 7:43 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder	62 min
Jul 17, 8:38 PM CDT	Severe Thunderstorm Warning	BIS	Kidder, LaMoure, Logan, Stutsman	67 min
Jul 17, 8:43 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Griggs, Steele	62 min
Jul 17, 8:45 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, Sioux	60 min
Jul 17, 9:22 PM CDT	Severe Thunderstorm Warning	BIS	Logan	53 min
Jul 17, 10:17 PM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland, Sargent	58 min
Jul 17, 10:21 PM CDT	Severe Thunderstorm Warning	FGF	Richland	54 min
Jul 23, 6:31 AM CDT	Severe Thunderstorm Warning	BIS	Burke	59 min
Jul 23, 11:54 AM CDT	Severe Thunderstorm Warning	BIS	Rolette	36 min
Jul 23, 5:07 PM CDT	Severe Thunderstorm Warning	BIS	Golden Valley, Slope	53 min
Jul 23, 5:53 PM CDT	Severe Thunderstorm Warning	BIS	Golden Valley, Slope	40 min
Jul 23, 11:38 PM CDT	Severe Thunderstorm Warning	BIS	Divide, Williams	50 min
Jul 24, 1:22 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Mountrail, Renville, Ward	53 min
Jul 24, 2:13 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry, Renville	62 min
Jul 24, 6:01 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder	44 min
Jul 24, 6:28 PM CDT	Severe Thunderstorm Warning	BIS	Kidder	18 min
Jul 24, 8:19 PM CDT	Severe Thunderstorm Warning	FGF	Nelson	26 min
Jul 24, 8:27 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Nelson, Ramsey	33 min
Jul 24, 9:30 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Griggs, Nelson, Steele	45 min
Jul 24, 10:14 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Walsh	46 min
Jul 24, 11:41 PM CDT	Severe Thunderstorm Warning	FGF	Cass	64 min
Jul 25, 12:01 AM CDT	Severe Thunderstorm Warning	FGF	Cass, Traill	44 min
Jul 25, 12:07 AM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland, Sargent	38 min
Jul 25, 12:42 AM CDT	Severe Thunderstorm Warning	FGF	Cass, Ransom, Richland	27 min
Jul 25, 3:58 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier	30 min
Jul 25, 4:06 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Hettinger	54 min
Jul 25, 4:26 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Hettinger, Sioux	64 min
Jul 25, 5:21 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	54 min
Jul 25, 6:15 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	18 min
Jul 25, 6:59 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, Sioux	61 min
Jul 25, 8:09 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, Logan, McIntosh	51 min
Jul 25, 8:49 PM CDT	Severe Thunderstorm Warning	BIS	Logan	41 min
Jul 25, 9:13 PM CDT	Severe Thunderstorm Warning	FGF	Ramsey, Walsh	47 min
Jul 25, 9:16 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Nelson, Walsh	44 min
Jul 25, 9:23 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Griggs, Nelson	37 min
Jul 25, 9:31 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	44 min
Jul 25, 9:42 PM CDT	Severe Thunderstorm Warning	BIS	McIntosh	37 min
Jul 26, 12:08 AM CDT	Severe Thunderstorm Warning	FGF	Traill	52 min
Jul 26, 1:31 AM CDT	Severe Thunderstorm Warning	FGF	Richland	59 min
Jul 30, 4:25 PM CDT	Severe Thunderstorm Warning	BIS	Bowman, Slope	35 min
Jul 31, 2:26 PM CDT	Severe Thunderstorm Warning	BIS	Stark	49 min
Jul 31, 3:04 PM CDT	Severe Thunderstorm Warning	BIS	Hettinger, Stark	56 min
Jul 31, 5:04 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	56 min
Jul 31, 6:40 PM CDT	Severe Thunderstorm Warning	FGF	Sargent	29 min
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
Sep 2, 7:10 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Griggs, Nelson, Ramsey	50 min
Sep 2, 7:13 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Pierce, Sheridan, Wells	62 min
Sep 2, 7:54 PM CDT	Severe Thunderstorm Warning	FGF	Eddy, Grand Forks, Griggs, Nelson, Steele, Walsh	51 min
Sep 2, 8:35 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Grand Forks, Griggs, Steele, Traill	55 min
Sep 2, 9:30 PM CDT	Severe Thunderstorm Warning	FGF	Cass	60 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 2019 2021

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.