Alert archive / North Dakota / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in North Dakota, 2011

431 severe thunderstorm warnings in 2011. 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 2011. Tap one for its archive.

Severe Thunderstorm Warnings: 431
Busiest month: July205 severe thunderstorm warnings
Busiest day: July 23, 201129 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.

217 of 434 severe thunderstorm warnings covering North Dakota in 2011 had a qualifying storm report inside them; 359 of 442 hail, wind and damage reports fell inside a warning, on average 26 minutes after it went out.

North Dakota, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Severe thunderstorm warnings	434	217	50%	442	81%	26 min

Each office's whole area, 2011

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Grand Forks, ND: severe thunderstorm warnings	176	117	34%	287	82%	26 min
NWS Bismarck, ND: severe thunderstorm warnings	334	147	56%	286	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
May 10, 12:01 AM CDT	Severe Thunderstorm Warning	FGF	Ransom, Sargent	44 min
May 10, 12:44 AM CDT	Severe Thunderstorm Warning	FGF	Ransom, Sargent	61 min
May 10, 1:43 AM CDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	62 min
May 10, 2:25 AM CDT	Severe Thunderstorm Warning	FGF	Cass	48 min
May 10, 2:43 AM CDT	Severe Thunderstorm Warning	FGF	Cass	62 min
May 10, 2:46 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder	44 min
May 10, 3:13 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Kidder, Logan	47 min
May 10, 3:26 AM CDT	Severe Thunderstorm Warning	BIS	Kidder, Stutsman, Wells	54 min
May 30, 7:42 PM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland, Sargent	63 min
May 30, 8:21 PM CDT	Severe Thunderstorm Warning	FGF	Ransom, Sargent	24 min
May 30, 9:22 PM CDT	Severe Thunderstorm Warning	FGF	Traill	38 min
May 30, 9:40 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	65 min
May 30, 9:48 PM CDT	Severe Thunderstorm Warning	FGF	Traill	27 min
Jun 2, 8:13 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	51 min
Jun 2, 8:30 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry	45 min
Jun 2, 8:51 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Rolette	54 min
Jun 2, 9:09 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry	36 min
Jun 2, 9:39 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Rolette	66 min
Jun 2, 11:57 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, Sioux	63 min
Jun 3, 12:49 AM CDT	Severe Thunderstorm Warning	BIS	Emmons, Logan, McIntosh	56 min
Jun 3, 1:18 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder, Stutsman	57 min
Jun 3, 1:56 AM CDT	Severe Thunderstorm Warning	BIS	Foster, Stutsman, Wells	64 min
Jun 3, 2:11 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Griggs, Steele	64 min
Jun 3, 2:32 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Grand Forks, Griggs, Nelson, Ramsey and 1 more	58 min
Jun 3, 2:34 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Steele, Traill	28 min
Jun 3, 3:30 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Grand Forks, Nelson, Pembina, Walsh	60 min
Jun 3, 4:23 AM CDT	Severe Thunderstorm Warning	FGF	Pembina	24 min
Jun 7, 2:05 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Cavalier, Ramsey, Towner	55 min
Jun 7, 2:33 AM CDT	Severe Thunderstorm Warning	BIS	Divide	57 min
Jun 7, 5:29 PM CDT	Severe Thunderstorm Warning	BIS	Morton, Stark	61 min
Jun 7, 6:26 PM CDT	Severe Thunderstorm Warning	BIS	Morton	19 min
Jun 7, 6:33 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Kidder, Logan	38 min
Jun 12, 5:42 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton, Oliver	63 min
Jun 12, 6:44 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Oliver, Sheridan	40 min
Jun 12, 7:07 PM CDT	Severe Thunderstorm Warning	BIS	Bowman, Slope	53 min
Jun 12, 7:36 PM CDT	Severe Thunderstorm Warning	BIS	Mercer, Morton, Oliver	39 min
Jun 12, 7:47 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Mercer	43 min
Jun 12, 7:54 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger, Morton, Stark	51 min
Jun 12, 8:01 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger	44 min
Jun 12, 8:05 PM CDT	Severe Thunderstorm Warning	BIS	Morton, Oliver	28 min
Jun 12, 8:14 PM CDT	Severe Thunderstorm Warning	BIS	Morton, Oliver	28 min
Jun 12, 8:17 PM CDT	Severe Thunderstorm Warning	BIS	Mercer, Morton, Oliver	28 min
Jun 12, 8:25 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman	50 min
Jun 12, 8:38 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Hettinger	57 min
Jun 12, 8:46 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger	59 min
Jun 12, 8:59 PM CDT	Severe Thunderstorm Warning	BIS	Hettinger	46 min
Jun 12, 9:07 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Hettinger, Sioux	53 min
Jun 12, 9:39 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	66 min
Jun 12, 10:03 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Logan, McIntosh, Morton, Sioux	57 min
Jun 12, 10:09 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Morton, Oliver	41 min
Jun 12, 11:04 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder, Sheridan, Wells	40 min
Jun 13, 8:41 PM CDT	Severe Thunderstorm Warning	FGF	Steele	39 min
Jun 14, 6:38 AM CDT	Severe Thunderstorm Warning	BIS	Grant	39 min
Jun 14, 7:14 AM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	61 min
Jun 18, 5:01 PM CDT	Severe Thunderstorm Warning	BIS	Mercer, Morton, Oliver	59 min
Jun 18, 5:20 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	44 min
Jun 18, 6:35 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	55 min
Jun 18, 6:40 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	65 min
Jun 18, 7:43 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	62 min
Jun 18, 8:49 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	56 min
Jun 24, 9:16 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie	59 min
Jun 25, 3:10 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Mountrail	35 min
Jun 25, 3:44 PM CDT	Severe Thunderstorm Warning	BIS	Mountrail	47 min
Jun 25, 3:45 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Mountrail, Williams	60 min
Jun 25, 4:04 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Renville, Ward	56 min
Jun 25, 4:22 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Renville	53 min
Jun 25, 4:50 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Renville, Ward	25 min
Jun 25, 5:05 PM CDT	Severe Thunderstorm Warning	BIS	Mountrail, Ward	55 min
Jun 25, 5:13 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Renville	62 min
Jun 25, 5:41 PM CDT	Severe Thunderstorm Warning	BIS	Ward	19 min
Jun 25, 5:54 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry	66 min
Jun 25, 5:57 PM CDT	Severe Thunderstorm Warning	BIS	Renville, Ward	42 min
Jun 25, 6:19 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Ward	41 min
Jun 25, 6:45 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry, Rolette	60 min
Jun 25, 6:53 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry, Pierce, Rolette	67 min
Jun 25, 7:17 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Pierce	28 min
Jun 25, 7:36 PM CDT	Severe Thunderstorm Warning	BIS	Pierce, Rolette	54 min
Jun 25, 7:42 PM CDT	Severe Thunderstorm Warning	BIS	Pierce	63 min
Jun 25, 7:54 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Cavalier, Ramsey, Towner	66 min
Jun 25, 7:57 PM CDT	Severe Thunderstorm Warning	BIS	Wells	63 min
Jun 25, 8:04 PM CDT	Severe Thunderstorm Warning	BIS	Wells	56 min
Jun 25, 8:32 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy	58 min
Jun 25, 8:47 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Sheridan	58 min
Jun 25, 9:01 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Ramsey, Towner	59 min
Jun 25, 9:02 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Wells	58 min
Jun 25, 9:06 PM CDT	Severe Thunderstorm Warning	BIS	Morton	54 min
Jun 25, 9:29 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy	46 min
Jun 25, 10:00 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	27 min
Jun 25, 10:02 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Nelson, Ramsey	46 min
Jun 25, 10:04 PM CDT	Severe Thunderstorm Warning	BIS	Foster	26 min
Jun 25, 10:17 PM CDT	Severe Thunderstorm Warning	FGF	Eddy, Nelson	58 min
Jun 26, 9:40 AM CDT	Severe Thunderstorm Warning	BIS	LaMoure	65 min
Jun 26, 8:45 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Hettinger, Sioux	45 min
Jul 2, 8:40 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie	35 min
Jul 2, 9:14 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie	46 min
Jul 2, 9:56 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	34 min
Jul 2, 10:27 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	30 min
Jul 2, 10:34 PM CDT	Severe Thunderstorm Warning	BIS	Williams	41 min
Jul 2, 11:39 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Divide	36 min
Jul 4, 3:10 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Towner	65 min
Jul 4, 3:53 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Ramsey, Towner	67 min
Jul 4, 4:38 PM CDT	Severe Thunderstorm Warning	FGF	Pembina	52 min
Jul 4, 8:17 PM CDT	Severe Thunderstorm Warning	FGF	Traill	58 min
Jul 4, 9:12 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Traill	63 min
Jul 4, 9:40 PM CDT	Severe Thunderstorm Warning	FGF	Cass	65 min
Jul 4, 10:26 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Ransom, Richland, Sargent	64 min
Jul 5, 4:24 AM CDT	Severe Thunderstorm Warning	FGF	Richland	22 min
Jul 6, 1:29 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley, Slope	61 min
Jul 6, 1:46 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Stark	59 min
Jul 6, 2:29 PM CDT	Severe Thunderstorm Warning	BIS	Slope	31 min
Jul 8, 2:51 PM CDT	Severe Thunderstorm Warning	BIS	Golden Valley, McKenzie	39 min
Jul 8, 3:29 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Mountrail, Renville, Ward	40 min
Jul 8, 3:35 PM CDT	Severe Thunderstorm Warning	BIS	Grant	55 min
Jul 8, 3:39 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley	66 min
Jul 8, 4:12 PM CDT	Severe Thunderstorm Warning	BIS	Dunn	63 min
Jul 8, 4:21 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Stark	24 min
Jul 8, 4:26 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	64 min
Jul 8, 4:30 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	60 min
Jul 8, 5:19 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McLean, Mercer	14 min
Jul 8, 5:53 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Morton, Sioux	52 min
Jul 8, 6:15 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	31 min
Jul 8, 6:59 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, McLean, Oliver, Sheridan	61 min
Jul 8, 7:15 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	60 min
Jul 8, 9:52 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure, Logan, McIntosh	53 min
Jul 8, 10:30 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure	60 min
Jul 10, 10:20 AM CDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger, Morton, Stark	55 min
Jul 10, 10:58 AM CDT	Severe Thunderstorm Warning	BIS	Stark	62 min
Jul 10, 11:09 AM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	66 min
Jul 10, 11:16 AM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	59 min
Jul 10, 11:52 AM CDT	Severe Thunderstorm Warning	BIS	Mercer, Morton, Oliver, Stark	26 min
Jul 10, 12:04 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	37 min
Jul 10, 12:16 PM CDT	Severe Thunderstorm Warning	BIS	Morton	47 min
Jul 10, 12:33 PM CDT	Severe Thunderstorm Warning	BIS	Grant	15 min
Jul 10, 12:39 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Oliver	31 min
Jul 10, 1:01 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	29 min
Jul 10, 1:20 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	55 min
Jul 10, 1:30 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Morton	60 min
Jul 10, 2:12 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, Sioux	63 min
Jul 10, 2:30 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Kidder, Logan	30 min
Jul 10, 2:51 PM CDT	Severe Thunderstorm Warning	BIS	Logan, McIntosh	54 min
Jul 10, 3:35 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, McIntosh	55 min
Jul 10, 4:29 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure	51 min
Jul 10, 4:59 PM CDT	Severe Thunderstorm Warning	FGF	Ransom	61 min
Jul 10, 5:24 PM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland, Sargent	66 min
Jul 10, 6:07 PM CDT	Severe Thunderstorm Warning	FGF	Richland	53 min
Jul 14, 11:42 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley, McKenzie	63 min
Jul 15, 1:01 AM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn	44 min
Jul 15, 1:05 AM CDT	Severe Thunderstorm Warning	BIS	Foster	55 min
Jul 15, 1:07 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie, Mountrail	53 min
Jul 15, 1:23 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, Mercer, Stark	37 min
Jul 15, 1:43 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie, McLean, Mercer, Mountrail, Williams	62 min
Jul 15, 2:02 AM CDT	Severe Thunderstorm Warning	BIS	Foster, Stutsman	58 min
Jul 15, 2:11 AM CDT	Severe Thunderstorm Warning	FGF	Griggs	64 min
Jul 15, 2:20 AM CDT	Severe Thunderstorm Warning	BIS	McLean, Mountrail, Ward	55 min
Jul 15, 2:41 AM CDT	Severe Thunderstorm Warning	FGF	Barnes	64 min
Jul 15, 2:58 AM CDT	Severe Thunderstorm Warning	BIS	Stutsman	32 min
Jul 15, 3:11 AM CDT	Severe Thunderstorm Warning	BIS	McHenry, Renville, Ward	49 min
Jul 15, 3:21 AM CDT	Severe Thunderstorm Warning	BIS	Stutsman	19 min
Jul 15, 3:53 AM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland	52 min
Jul 15, 4:04 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass	56 min
Jul 15, 4:50 AM CDT	Severe Thunderstorm Warning	FGF	Richland	55 min
Jul 15, 5:00 AM CDT	Severe Thunderstorm Warning	FGF	Cass, Traill	43 min
Jul 15, 5:47 AM CDT	Severe Thunderstorm Warning	FGF	Richland	58 min
Jul 15, 11:32 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley, McKenzie	58 min
Jul 16, 1:21 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, McLean, Mountrail, Ward	54 min
Jul 16, 5:03 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie	57 min
Jul 16, 5:58 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, McLean, Mercer, Mountrail	62 min
Jul 16, 6:43 AM CDT	Severe Thunderstorm Warning	BIS	Mercer	33 min
Jul 16, 7:14 AM CDT	Severe Thunderstorm Warning	BIS	McLean, Mercer, Oliver	61 min
Jul 16, 8:10 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Oliver, Sheridan	50 min
Jul 16, 8:54 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder, Sheridan, Wells	51 min
Jul 16, 9:02 AM CDT	Severe Thunderstorm Warning	BIS	McLean, Sheridan	43 min
Jul 16, 9:28 AM CDT	Severe Thunderstorm Warning	BIS	Foster, Wells	62 min
Jul 16, 9:36 AM CDT	Severe Thunderstorm Warning	BIS	Sheridan, Wells	39 min
Jul 16, 11:01 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Griggs, Nelson, Steele, Traill	59 min
Jul 16, 11:56 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Traill	39 min
Jul 16, 6:52 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton, Sioux	53 min
Jul 16, 6:59 PM CDT	Severe Thunderstorm Warning	BIS	Wells	61 min
Jul 16, 7:25 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons	65 min
Jul 16, 11:08 PM CDT	Severe Thunderstorm Warning	FGF	Walsh	52 min
Jul 17, 9:40 AM CDT	Severe Thunderstorm Warning	BIS	Ward	50 min
Jul 17, 10:13 AM CDT	Severe Thunderstorm Warning	BIS	McHenry, Ward	47 min
Jul 17, 11:45 AM CDT	Severe Thunderstorm Warning	FGF	Benson	60 min
Jul 17, 12:44 PM CDT	Severe Thunderstorm Warning	BIS	Wells	16 min
Jul 17, 7:30 PM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland, Sargent	60 min
Jul 17, 7:46 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	59 min
Jul 17, 8:16 PM CDT	Severe Thunderstorm Warning	FGF	Richland	59 min
Jul 18, 5:56 PM CDT	Severe Thunderstorm Warning	BIS	Adams	64 min
Jul 18, 6:47 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Hettinger	58 min
Jul 18, 7:43 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Sioux	62 min
Jul 18, 8:46 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	45 min
Jul 19, 2:25 AM CDT	Severe Thunderstorm Warning	FGF	Cass	65 min
Jul 19, 2:57 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Traill	63 min
Jul 19, 3:29 AM CDT	Severe Thunderstorm Warning	FGF	Cass	61 min
Jul 19, 4:55 PM CDT	Severe Thunderstorm Warning	BIS	Golden Valley	65 min
Jul 19, 5:39 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley, Slope	66 min
Jul 19, 6:44 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley, Slope	61 min
Jul 19, 7:42 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley, Slope	39 min
Jul 20, 4:08 AM CDT	Severe Thunderstorm Warning	FGF	Walsh	67 min
Jul 20, 4:11 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Ramsey, Towner	64 min
Jul 20, 5:02 AM CDT	Severe Thunderstorm Warning	BIS	McLean, Ward	58 min
Jul 20, 5:41 AM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	34 min
Jul 20, 5:43 AM CDT	Severe Thunderstorm Warning	BIS	McHenry, McLean, Sheridan, Ward	62 min
Jul 20, 6:22 AM CDT	Severe Thunderstorm Warning	BIS	McHenry, Pierce, Sheridan, Wells	53 min
Jul 20, 6:28 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Ramsey, Towner	62 min
Jul 20, 6:40 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Walsh	50 min
Jul 20, 7:05 AM CDT	Severe Thunderstorm Warning	BIS	Pierce, Rolette	40 min
Jul 20, 7:21 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Cavalier, Ramsey, Towner, Walsh	54 min
Jul 20, 8:08 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Nelson, Pembina, Ramsey, Walsh	67 min
Jul 22, 5:26 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	64 min
Jul 22, 6:44 PM CDT	Severe Thunderstorm Warning	BIS	Golden Valley, McKenzie, Williams	61 min
Jul 22, 6:59 PM CDT	Severe Thunderstorm Warning	BIS	Morton	10 min
Jul 22, 7:15 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Bowman, Golden Valley, Slope	60 min
Jul 22, 7:40 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, Golden Valley, McKenzie, Williams	65 min
Jul 22, 8:10 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, Golden Valley, Stark	65 min
Jul 22, 8:15 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Hettinger, Slope	60 min
Jul 22, 8:32 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, McKenzie, McLean, Mercer, Mountrail	58 min
Jul 22, 9:13 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Mercer, Morton, Oliver, Stark	62 min
Jul 22, 9:15 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Grant, Hettinger	60 min
Jul 22, 9:22 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McLean, Mercer, Mountrail, Oliver, Ward	53 min
Jul 22, 10:12 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton, Oliver	63 min
Jul 22, 10:14 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Mercer, Oliver, Sheridan	61 min
Jul 22, 10:16 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Burleigh, Emmons, Grant, Hettinger, Morton and 1 more	59 min
Jul 22, 11:07 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Foster, Kidder, Morton, Sheridan, Stutsman and 1 more	68 min
Jul 22, 11:08 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Oliver, Sheridan, Wells	67 min
Jul 22, 11:11 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Emmons, Grant, Logan, Morton, Sioux	64 min
Jul 23, 12:08 AM CDT	Severe Thunderstorm Warning	BIS	Dickey, Emmons, LaMoure, Logan, McIntosh, Sioux	52 min
Jul 23, 12:16 AM CDT	Severe Thunderstorm Warning	BIS	Kidder, Stutsman	59 min
Jul 23, 12:21 AM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Hettinger	54 min
Jul 23, 12:57 AM CDT	Severe Thunderstorm Warning	BIS	Dickey, Kidder, LaMoure, Logan, McIntosh	63 min
Jul 23, 1:09 AM CDT	Severe Thunderstorm Warning	BIS	Stutsman	66 min
Jul 23, 1:15 AM CDT	Severe Thunderstorm Warning	BIS	Adams, Hettinger	60 min
Jul 23, 1:29 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Griggs	61 min
Jul 23, 1:35 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Griggs	55 min
Jul 23, 1:51 AM CDT	Severe Thunderstorm Warning	FGF	Ransom, Sargent	54 min
Jul 23, 1:55 AM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure	50 min
Jul 23, 2:22 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Steele, Traill	53 min
Jul 23, 2:39 AM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland, Sargent	51 min
Jul 23, 3:01 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Steele, Traill	59 min
Jul 23, 3:12 AM CDT	Severe Thunderstorm Warning	FGF	Cass, Ransom, Richland, Steele, Traill	63 min
Jul 23, 3:23 AM CDT	Severe Thunderstorm Warning	FGF	Richland	52 min
Jul 24, 2:25 PM CDT	Severe Thunderstorm Warning	BIS	Hettinger, Slope	65 min
Jul 24, 2:48 PM CDT	Severe Thunderstorm Warning	BIS	Morton	57 min
Jul 24, 2:51 PM CDT	Severe Thunderstorm Warning	BIS	Kidder	54 min
Jul 24, 3:21 PM CDT	Severe Thunderstorm Warning	BIS	Hettinger, Slope	54 min
Jul 24, 3:28 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Hettinger	62 min
Jul 24, 3:37 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton, Oliver	53 min
Jul 24, 3:40 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Wells	65 min
Jul 24, 3:45 PM CDT	Severe Thunderstorm Warning	BIS	Kidder, Stutsman	45 min
Jul 24, 3:45 PM CDT	Severe Thunderstorm Warning	BIS	Morton	60 min
Jul 24, 3:59 PM CDT	Severe Thunderstorm Warning	FGF	Eddy	33 min
Jul 24, 4:00 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder, Stutsman	60 min
Jul 24, 4:18 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder	27 min
Jul 24, 4:28 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure, Stutsman	62 min
Jul 24, 4:30 PM CDT	Severe Thunderstorm Warning	BIS	Morton	45 min
Jul 24, 4:46 PM CDT	Severe Thunderstorm Warning	BIS	Kidder, Stutsman	59 min
Jul 24, 4:52 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder, Sheridan	53 min
Jul 24, 5:23 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	46 min
Jul 24, 5:32 PM CDT	Severe Thunderstorm Warning	BIS	Kidder, Wells	46 min
Jul 24, 5:47 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Nelson, Steele, Traill	37 min
Jul 24, 6:08 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Wells	67 min
Jul 24, 6:26 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Griggs, Steele, Traill	37 min
Jul 24, 6:53 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh	52 min
Jul 24, 6:56 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Griggs, Nelson, Steele, Traill	39 min
Jul 26, 10:36 AM CDT	Severe Thunderstorm Warning	BIS	Williams	54 min
Jul 26, 12:08 PM CDT	Severe Thunderstorm Warning	BIS	Mountrail	25 min
Jul 26, 5:39 PM CDT	Severe Thunderstorm Warning	BIS	Divide, Williams	51 min
Jul 26, 7:04 PM CDT	Severe Thunderstorm Warning	BIS	Williams	28 min
Jul 26, 7:29 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	31 min
Jul 26, 7:39 PM CDT	Severe Thunderstorm Warning	FGF	Sargent	66 min
Jul 26, 8:01 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	17 min
Jul 28, 2:30 PM CDT	Severe Thunderstorm Warning	BIS	Ward	30 min
Jul 28, 2:33 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman	46 min
Jul 29, 6:48 PM CDT	Severe Thunderstorm Warning	BIS	Bowman	42 min
Jul 29, 7:30 PM CDT	Severe Thunderstorm Warning	BIS	Bowman, Slope	60 min
Jul 29, 8:39 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	51 min
Jul 29, 9:25 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	65 min
Jul 29, 9:58 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley, McKenzie	62 min
Jul 29, 10:26 PM CDT	Severe Thunderstorm Warning	BIS	Morton, Oliver	45 min
Jul 29, 10:41 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Mountrail, Ward	64 min
Jul 29, 10:47 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley	58 min
Jul 29, 11:06 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Oliver	54 min
Jul 29, 11:33 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder	57 min
Jul 29, 11:43 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, Stark	29 min
Jul 30, 12:03 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry	27 min
Jul 30, 12:09 AM CDT	Severe Thunderstorm Warning	BIS	Foster, Kidder, Stutsman, Wells	51 min
Jul 30, 12:16 AM CDT	Severe Thunderstorm Warning	BIS	Kidder, Stutsman	44 min
Jul 30, 12:27 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder, Sheridan, Wells	31 min
Jul 30, 12:53 AM CDT	Severe Thunderstorm Warning	BIS	Foster, Stutsman, Wells	67 min
Jul 30, 2:34 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	56 min
Jul 30, 2:37 AM CDT	Severe Thunderstorm Warning	FGF	Cass	38 min
Jul 30, 3:24 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh	66 min
Jul 30, 4:05 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Kidder, Logan, Stutsman	55 min
Jul 30, 4:45 AM CDT	Severe Thunderstorm Warning	BIS	LaMoure, Logan	60 min
Jul 30, 5:32 AM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure	58 min
Jul 30, 6:45 AM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland, Sargent	45 min
Jul 30, 8:17 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom, Richland	58 min
Jul 30, 10:59 AM CDT	Severe Thunderstorm Warning	FGF	Richland	61 min
Jul 31, 8:33 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Sioux	57 min
Jul 31, 8:50 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Hettinger	55 min
Jul 31, 9:25 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Hettinger, Morton	65 min
Jul 31, 9:27 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Hettinger	63 min
Jul 31, 9:42 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom	63 min
Jul 31, 10:00 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Grant, Morton, Oliver	60 min
Jul 31, 10:13 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger, Morton	47 min
Jul 31, 10:26 PM CDT	Severe Thunderstorm Warning	BIS	Mercer, Morton, Stark	46 min
Jul 31, 10:49 PM CDT	Severe Thunderstorm Warning	BIS	Mercer, Morton, Oliver	56 min
Jul 31, 11:00 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Kidder, Morton, Oliver, Sheridan	60 min
Jul 31, 11:26 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McHenry, McLean, Mercer, Oliver, Sheridan and 1 more	64 min
Jul 31, 11:36 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Kidder, Logan, McLean, Sheridan and 1 more	54 min
Aug 1, 12:11 AM CDT	Severe Thunderstorm Warning	BIS	Foster, Kidder, Stutsman, Wells	64 min
Aug 1, 12:41 AM CDT	Severe Thunderstorm Warning	FGF	Griggs, Steele, Traill	64 min
Aug 1, 12:53 AM CDT	Severe Thunderstorm Warning	BIS	Foster, Wells	52 min
Aug 1, 1:02 AM CDT	Severe Thunderstorm Warning	BIS	Pierce	28 min
Aug 1, 1:03 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Nelson, Ramsey	57 min
Aug 1, 1:07 AM CDT	Severe Thunderstorm Warning	BIS	Foster, Stutsman, Wells	53 min
Aug 1, 1:28 AM CDT	Severe Thunderstorm Warning	BIS	Emmons, Logan, McIntosh	47 min
Aug 1, 1:29 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Eddy, Griggs, Nelson	46 min
Aug 1, 2:05 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Grand Forks, Griggs, Nelson, Ramsey, Steele and 2 more	40 min
Aug 1, 2:11 AM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure, Logan, McIntosh	64 min
Aug 1, 2:37 AM CDT	Severe Thunderstorm Warning	FGF	Cass, Grand Forks, Steele, Traill, Walsh	53 min
Aug 1, 3:16 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom, Richland	59 min
Aug 1, 4:15 AM CDT	Severe Thunderstorm Warning	FGF	Richland	60 min
Aug 1, 1:54 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman	49 min
Aug 2, 7:37 PM CDT	Severe Thunderstorm Warning	BIS	Williams	53 min
Aug 2, 8:29 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	61 min
Aug 2, 9:17 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	58 min
Aug 4, 4:23 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Renville	67 min
Aug 4, 6:54 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Steele, Traill	66 min
Aug 4, 6:57 PM CDT	Severe Thunderstorm Warning	BIS	Golden Valley	63 min
Aug 4, 7:47 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley, Slope, Stark	58 min
Aug 4, 11:59 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Ward	61 min
Aug 5, 1:00 AM CDT	Severe Thunderstorm Warning	BIS	McLean, Sheridan	37 min
Aug 5, 2:19 PM CDT	Severe Thunderstorm Warning	BIS	Bowman, Slope	56 min
Aug 5, 2:26 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley	29 min
Aug 5, 3:51 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Stark	54 min
Aug 5, 4:13 PM CDT	Severe Thunderstorm Warning	BIS	Bowman	47 min
Aug 5, 4:45 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Stark	60 min
Aug 5, 5:23 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger, Mercer, Morton, Oliver, Stark	67 min
Aug 5, 6:04 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton, Oliver	41 min
Aug 5, 6:19 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	39 min
Aug 5, 6:43 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Morton, Oliver	62 min
Aug 5, 7:45 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Kidder	30 min
Aug 6, 8:54 PM CDT	Severe Thunderstorm Warning	BIS	Divide	34 min
Aug 11, 2:47 PM CDT	Severe Thunderstorm Warning	FGF	Traill	43 min
Aug 11, 2:55 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder, Sheridan, Wells	36 min
Aug 11, 5:33 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	17 min
Aug 12, 1:27 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy	63 min
Aug 12, 2:30 PM CDT	Severe Thunderstorm Warning	FGF	Nelson, Ramsey	60 min
Aug 12, 2:35 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	55 min
Aug 12, 3:08 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure	67 min
Aug 12, 3:29 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	31 min
Aug 12, 3:53 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	45 min
Aug 12, 3:57 PM CDT	Severe Thunderstorm Warning	FGF	Griggs, Steele	48 min
Aug 12, 4:19 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom	34 min
Aug 12, 4:37 PM CDT	Severe Thunderstorm Warning	FGF	Richland	53 min
Aug 12, 5:28 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Traill	47 min
Aug 12, 5:57 PM CDT	Severe Thunderstorm Warning	FGF	Cass	38 min
Aug 14, 8:22 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, Logan, McIntosh	53 min
Aug 14, 9:30 PM CDT	Severe Thunderstorm Warning	BIS	Divide, Williams	51 min
Aug 14, 11:27 PM CDT	Severe Thunderstorm Warning	BIS	Divide, Williams	63 min
Aug 15, 12:23 AM CDT	Severe Thunderstorm Warning	BIS	Morton, Oliver	67 min
Aug 15, 1:48 AM CDT	Severe Thunderstorm Warning	BIS	McKenzie	57 min
Aug 15, 2:44 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie, McLean, Mountrail	61 min
Aug 15, 3:46 AM CDT	Severe Thunderstorm Warning	BIS	Dunn, Mercer	59 min
Aug 15, 4:23 AM CDT	Severe Thunderstorm Warning	BIS	McLean, Mercer	50 min
Aug 15, 4:46 AM CDT	Severe Thunderstorm Warning	BIS	Mercer, Oliver	29 min
Aug 15, 5:10 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Mercer, Morton, Oliver	65 min
Aug 15, 8:19 AM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure	56 min
Aug 15, 5:12 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Stark	63 min
Aug 15, 5:23 PM CDT	Severe Thunderstorm Warning	BIS	Bowman, Slope	67 min
Aug 15, 6:14 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Mercer, Morton, Stark	20 min
Aug 15, 6:18 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Renville	38 min
Aug 15, 6:20 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Hettinger, Slope	55 min
Aug 15, 7:07 PM CDT	Severe Thunderstorm Warning	BIS	Morton	68 min
Aug 15, 7:10 PM CDT	Severe Thunderstorm Warning	BIS	McLean	65 min
Aug 15, 7:13 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Hettinger	62 min
Aug 15, 7:39 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Hettinger, Slope	66 min
Aug 15, 8:03 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	57 min
Aug 15, 8:14 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger	61 min
Aug 15, 8:47 PM CDT	Severe Thunderstorm Warning	BIS	Grant	28 min
Aug 15, 8:52 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	53 min
Aug 15, 9:09 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Morton, Sioux	66 min
Aug 15, 9:17 PM CDT	Severe Thunderstorm Warning	BIS	Grant	40 min
Aug 15, 9:25 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder, Sheridan	44 min
Aug 15, 9:36 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Kidder, Logan	54 min
Aug 15, 10:25 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Hettinger, Slope	35 min
Aug 15, 11:21 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Hettinger, Sioux	54 min
Aug 16, 12:11 AM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton, Sioux	64 min
Aug 18, 1:01 AM CDT	Severe Thunderstorm Warning	FGF	Eddy, Griggs	59 min
Aug 18, 4:38 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, Sioux	32 min
Aug 22, 8:14 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder, Wells	61 min
Aug 22, 8:22 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder	53 min
Aug 22, 9:06 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Kidder, Stutsman, Wells	54 min
Aug 22, 9:12 PM CDT	Severe Thunderstorm Warning	BIS	Kidder	63 min
Aug 22, 9:51 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	54 min
Aug 22, 9:56 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Wells	64 min
Aug 22, 10:34 PM CDT	Severe Thunderstorm Warning	BIS	Kidder, Stutsman	56 min
Aug 22, 10:38 PM CDT	Severe Thunderstorm Warning	BIS	Kidder	37 min
Aug 22, 11:05 PM CDT	Severe Thunderstorm Warning	BIS	Kidder, Stutsman	25 min
Aug 22, 11:23 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure	52 min
Aug 22, 11:32 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure, Logan, Stutsman	35 min
Aug 23, 12:44 AM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland, Sargent	35 min
Aug 27, 10:22 PM CDT	Severe Thunderstorm Warning	BIS	Divide, Williams	38 min
Aug 27, 11:31 PM CDT	Severe Thunderstorm Warning	BIS	Williams	44 min
Aug 27, 11:44 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	51 min
Aug 28, 12:21 AM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, McKenzie	54 min
Aug 28, 1:08 AM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, Stark	67 min
Aug 28, 4:06 AM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton, Sioux	39 min
Aug 28, 4:15 AM CDT	Severe Thunderstorm Warning	BIS	Emmons, McIntosh	32 min
Aug 31, 8:54 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie	51 min
Aug 31, 9:07 PM CDT	Severe Thunderstorm Warning	BIS	Bowman, Slope	53 min
Aug 31, 9:17 PM CDT	Severe Thunderstorm Warning	BIS	Divide, McKenzie, Williams	58 min
Aug 31, 9:39 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, Stark	66 min
Aug 31, 9:45 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie	45 min
Aug 31, 10:01 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Hettinger, Slope	59 min
Aug 31, 10:12 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Divide, McKenzie, Mountrail, Williams	63 min
Aug 31, 10:22 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Mountrail	38 min
Aug 31, 10:36 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Grant, Hettinger, Mercer, Morton, Oliver and 1 more	54 min
Aug 31, 10:56 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau, Burke, Mountrail, Renville, Ward	64 min
Aug 31, 10:59 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger	39 min
Aug 31, 11:25 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Mercer, Morton, Oliver	65 min
Aug 31, 11:49 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder, McLean, Morton, Oliver, Sheridan and 1 more	56 min
Sep 1, 12:36 AM CDT	Severe Thunderstorm Warning	BIS	Foster, Kidder, McHenry, Pierce, Sheridan, Wells	54 min
Sep 1, 12:44 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy	46 min
Sep 1, 1:07 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Towner	53 min
Sep 1, 1:23 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Nelson, Ramsey, Towner, Walsh	67 min
Sep 1, 1:57 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Pembina	63 min
Sep 1, 2:19 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Nelson, Walsh	41 min
Sep 1, 2:49 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Pembina, Walsh	56 min
Oct 23, 8:17 PM CDT	Severe Thunderstorm Warning	BIS	Burke, Mountrail, Renville, Ward	43 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 2010 2012

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.