Alert archive / Montana / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Montana, 2026

449 severe thunderstorm warnings in 2026. 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 2026. Tap one for its archive.

Severe Thunderstorm Warnings: 449
Busiest month: July176 severe thunderstorm warnings
Busiest day: June 27, 202636 severe thunderstorm warnings

Over time

By month

The alerts

Every alert, in the order issued. Times are local, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Counties	Lasted
Apr 7, 6:31 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Richland, Roosevelt	59 min
Apr 7, 7:23 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Richland, Roosevelt	32 min
Apr 11, 6:33 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Petroleum, Phillips, Valley	57 min
Apr 11, 7:25 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Phillips, Valley	65 min
Apr 11, 8:24 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Valley	66 min
Apr 11, 9:09 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Dawson, McCone, Richland, Roosevelt, Valley	66 min
Apr 13, 1:47 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Powder River	25 min
Apr 13, 2:04 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Powder River	4 min
Apr 13, 2:11 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Powder River	34 min
Apr 22, 4:44 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Prairie, Valley	61 min
Apr 22, 7:07 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, McCone, Richland, Roosevelt, Sheridan	53 min
Apr 22, 7:53 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, McCone, Richland, Roosevelt, Sheridan	67 min
Apr 22, 8:53 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Roosevelt, Sheridan	52 min
May 13, 1:59 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Lewis and Clark	35 min
May 13, 2:13 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Beaverhead, Madison	47 min
May 13, 2:46 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Chouteau, Fergus, Judith Basin	44 min
May 13, 2:50 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Cascade, Chouteau, Teton	40 min
May 13, 2:59 PM MDT	Severe Thunderstorm Warning	TFX	Broadwater, Jefferson	46 min
May 13, 3:28 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Blaine, Cascade, Chouteau, Fergus, Hill, Judith Basin and 1 more	47 min
May 13, 3:58 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Park, Stillwater, Sweet Grass	62 min
May 13, 4:08 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Blaine, Chouteau, Fergus, Hill, Liberty	97 min
May 13, 4:41 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Golden Valley, Wheatland	64 min
May 13, 4:41 PM MDT	Severe Thunderstorm Warning Considerable damage threat	GGW	Petroleum, Phillips	64 min
May 13, 5:17 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Rosebud	43 min
May 13, 5:22 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	38 min
May 13, 5:26 PM MDT	Severe Thunderstorm Warning Considerable damage threat	GGW	Garfield, Petroleum, Phillips	64 min
May 13, 5:42 PM MDT	Severe Thunderstorm Warning Considerable damage threat	GGW	Phillips, Valley	63 min
May 13, 5:52 PM MDT	Severe Thunderstorm Warning	BYZ	Park, Sweet Grass	38 min
May 13, 6:05 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	40 min
May 13, 6:17 PM MDT	Severe Thunderstorm Warning	BYZ	Carbon, Stillwater	58 min
May 13, 6:27 PM MDT	Severe Thunderstorm Warning Considerable damage threat	GGW	Garfield, Petroleum, Phillips, Valley	63 min
May 13, 6:31 PM MDT	Severe Thunderstorm Warning	BYZ	Sweet Grass	46 min
May 13, 7:29 PM MDT	Severe Thunderstorm Warning Considerable damage threat	GGW	Garfield, McCone, Phillips, Prairie, Valley	61 min
May 13, 10:03 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Petroleum, Phillips	57 min
May 26, 3:22 PM MDT	Severe Thunderstorm Warning	GGW	McCone, Richland, Roosevelt	38 min
May 26, 3:43 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Richland, Roosevelt	62 min
May 26, 3:58 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Roosevelt, Valley	62 min
May 26, 5:15 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Richland, Roosevelt	60 min
May 26, 6:03 PM MDT	Severe Thunderstorm Warning	GGW	McCone, Richland, Roosevelt, Valley	57 min
May 26, 6:14 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Broadwater, Jefferson	41 min
May 28, 1:54 AM MDT	Severe Thunderstorm Warning	TFX	Lewis and Clark, Pondera, Teton	42 min
May 28, 5:27 PM MDT	Severe Thunderstorm Warning	TFX	Glacier, Pondera, Toole	33 min
May 28, 5:40 PM MDT	Severe Thunderstorm Warning	MSO	Flathead	35 min
May 28, 6:45 PM MDT	Severe Thunderstorm Warning	MSO	Missoula	30 min
May 29, 4:22 PM MDT	Severe Thunderstorm Warning	TFX	Blaine	23 min
May 29, 4:43 PM MDT	Severe Thunderstorm Warning	TFX	Blaine	32 min
May 29, 6:13 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Petroleum	62 min
May 29, 6:42 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	48 min
May 29, 7:09 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Petroleum, Phillips	66 min
May 30, 2:36 PM MDT	Severe Thunderstorm Warning	BYZ	Carter	39 min
May 30, 6:32 PM MDT	Severe Thunderstorm Warning	BYZ	Custer	42 min
May 30, 6:40 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Rosebud	50 min
May 30, 7:19 PM MDT	Severe Thunderstorm Warning	BYZ	Custer, Powder River	41 min
May 30, 7:28 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Prairie	62 min
Jun 1, 3:23 PM MDT	Severe Thunderstorm Warning	BYZ	Carter	57 min
Jun 1, 11:01 PM MDT	Severe Thunderstorm Warning	BYZ	Powder River, Rosebud	59 min
Jun 2, 6:24 PM MDT	Severe Thunderstorm Warning	BYZ	Carter	33 min
Jun 2, 7:06 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Fallon	39 min
Jun 2, 7:29 PM MDT	Severe Thunderstorm Warning	BYZ	Carter	61 min
Jun 2, 7:49 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Powder River	56 min
Jun 2, 8:00 PM MDT	Severe Thunderstorm Warning	BYZ	Carter	46 min
Jun 2, 8:37 PM MDT	Severe Thunderstorm Warning	BYZ	Carter	53 min
Jun 2, 9:24 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Fallon	38 min
Jun 4, 3:02 PM MDT	Severe Thunderstorm Warning	BYZ	Carter	43 min
Jun 6, 8:07 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Richland	53 min
Jun 6, 8:40 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Richland, Roosevelt	65 min
Jun 6, 8:48 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Prairie	57 min
Jun 6, 9:41 PM MDT	Severe Thunderstorm Warning	GGW	Roosevelt, Sheridan	49 min
Jun 6, 9:50 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Garfield, McCone	55 min
Jun 6, 10:30 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Richland, Roosevelt, Sheridan	60 min
Jun 6, 10:50 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Prairie	55 min
Jun 6, 11:28 PM MDT	Severe Thunderstorm Warning	GGW	Richland, Roosevelt, Sheridan	62 min
Jun 6, 11:42 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone	63 min
Jun 6, 11:57 PM MDT	Severe Thunderstorm Warning	GGW	Roosevelt, Sheridan	63 min
Jun 7, 1:04 AM MDT	Severe Thunderstorm Warning	GGW	Richland, Roosevelt	56 min
Jun 7, 2:45 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley, Musselshell, Stillwater, Yellowstone	60 min
Jun 7, 3:01 PM MDT	Severe Thunderstorm Warning	BYZ	Powder River	45 min
Jun 7, 3:17 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Powder River, Rosebud	58 min
Jun 7, 3:38 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Carter, Custer, Powder River	49 min
Jun 7, 4:04 PM MDT	Severe Thunderstorm Warning	BYZ	Carter	38 min
Jun 7, 4:08 PM MDT	Severe Thunderstorm Warning	BYZ	Powder River	56 min
Jun 7, 4:25 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Fallon	65 min
Jun 7, 4:40 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Carter	55 min
Jun 7, 5:16 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Custer, Fallon, Powder River	59 min
Jun 7, 5:20 PM MDT	Severe Thunderstorm Warning	GGW	Richland, Roosevelt	55 min
Jun 7, 5:31 PM MDT	Severe Thunderstorm Warning	GGW	Wibaux	25 min
Jun 7, 5:41 PM MDT	Severe Thunderstorm Warning	GGW	Richland	64 min
Jun 7, 6:00 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Richland	49 min
Jun 7, 6:03 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn	33 min
Jun 7, 6:21 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Fallon	24 min
Jun 7, 6:25 PM MDT	Severe Thunderstorm Warning	GGW	Sheridan	54 min
Jun 9, 6:46 PM MDT	Severe Thunderstorm Warning	GGW	Sheridan	44 min
Jun 12, 5:59 PM MDT	Severe Thunderstorm Warning	TFX	Fergus, Judith Basin	33 min
Jun 16, 6:24 PM MDT	Severe Thunderstorm Warning	TFX	Blaine	25 min
Jun 20, 7:52 PM MDT	Severe Thunderstorm Warning	BYZ	Powder River	38 min
Jun 22, 2:03 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Rosebud	57 min
Jun 22, 2:34 PM MDT	Severe Thunderstorm Warning	BYZ	Powder River	56 min
Jun 22, 4:21 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn	33 min
Jun 22, 4:47 PM MDT	Severe Thunderstorm Warning Destructive damage threat	BYZ	Big Horn	58 min
Jun 22, 6:39 PM MDT	Severe Thunderstorm Warning	BYZ	Powder River	20 min
Jun 25, 2:06 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Lewis and Clark	39 min
Jun 25, 2:12 PM MDT	Severe Thunderstorm Warning	TFX	Broadwater, Jefferson, Lewis and Clark	48 min
Jun 25, 3:55 PM MDT	Severe Thunderstorm Warning	BYZ	Carbon	56 min
Jun 25, 3:59 PM MDT	Severe Thunderstorm Warning	TFX	Liberty	61 min
Jun 25, 4:18 PM MDT	Severe Thunderstorm Warning	TFX	Blaine, Chouteau, Hill	57 min
Jun 25, 4:55 PM MDT	Severe Thunderstorm Warning	TFX	Blaine, Chouteau	43 min
Jun 26, 5:11 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn	53 min
Jun 26, 5:20 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	55 min
Jun 26, 6:03 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Rosebud	44 min
Jun 26, 6:16 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Powder River	30 min
Jun 26, 8:14 PM MDT	Severe Thunderstorm Warning	BYZ	Custer	46 min
Jun 27, 1:28 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Powder River, Rosebud	62 min
Jun 27, 1:45 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Powder River	45 min
Jun 27, 1:50 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Carbon	25 min
Jun 27, 2:24 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Big Horn, Powder River, Rosebud	56 min
Jun 27, 2:34 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Richland, Roosevelt	41 min
Jun 27, 2:43 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn	62 min
Jun 27, 2:48 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Richland, Roosevelt, Valley	57 min
Jun 27, 2:56 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn	49 min
Jun 27, 3:11 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Valley	34 min
Jun 27, 3:19 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Powder River, Rosebud	35 min
Jun 27, 3:43 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn	47 min
Jun 27, 3:46 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn	44 min
Jun 27, 3:53 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Powder River	45 min
Jun 27, 3:54 PM MDT	Severe Thunderstorm Warning	BYZ	Rosebud	51 min
Jun 27, 4:01 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Fallon	52 min
Jun 27, 4:12 PM MDT	Severe Thunderstorm Warning	GGW	Garfield	63 min
Jun 27, 4:16 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Roosevelt, Valley	59 min
Jun 27, 4:23 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Big Horn, Rosebud, Treasure	37 min
Jun 27, 4:27 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Rosebud	35 min
Jun 27, 4:28 PM MDT	Severe Thunderstorm Warning	BYZ	Carter	32 min
Jun 27, 4:30 PM MDT	Severe Thunderstorm Warning	BYZ	Rosebud	47 min
Jun 27, 4:38 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Custer, Powder River	31 min
Jun 27, 4:52 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Custer, Fallon	38 min
Jun 27, 4:53 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Rosebud, Treasure	37 min
Jun 27, 5:01 PM MDT	Severe Thunderstorm Warning	BYZ	Rosebud	29 min
Jun 27, 5:01 PM MDT	Severe Thunderstorm Warning Considerable damage threat	GGW	Daniels	47 min
Jun 27, 5:05 PM MDT	Severe Thunderstorm Warning	GGW	Garfield	55 min
Jun 27, 5:08 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Custer, Fallon	18 min
Jun 27, 5:13 PM MDT	Severe Thunderstorm Warning	GGW	Richland, Roosevelt	62 min
Jun 27, 5:17 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Richland, Wibaux	58 min
Jun 27, 5:25 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Carter, Custer, Fallon	65 min
Jun 27, 5:39 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Richland, Wibaux	66 min
Jun 27, 5:43 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Roosevelt, Sheridan	62 min
Jun 27, 6:05 PM MDT	Severe Thunderstorm Warning	GGW	Richland, Roosevelt	55 min
Jun 27, 6:06 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Prairie, Richland, Wibaux	54 min
Jun 27, 6:38 PM MDT	Severe Thunderstorm Warning Considerable damage threat	GGW	Richland, Roosevelt	52 min
Jun 27, 6:48 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Richland, Wibaux	57 min
Jun 27, 6:52 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Richland, Wibaux	53 min
Jun 27, 7:05 PM MDT	Severe Thunderstorm Warning	GGW	Richland, Roosevelt, Sheridan	55 min
Jun 27, 7:12 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Garfield, McCone	63 min
Jun 27, 7:24 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Richland, Roosevelt, Sheridan, Wibaux	66 min
Jun 27, 8:14 PM MDT	Severe Thunderstorm Warning Considerable damage threat	GGW	Roosevelt, Sheridan	46 min
Jun 27, 8:22 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Roosevelt, Sheridan	53 min
Jul 1, 6:27 PM MDT	Severe Thunderstorm Warning	BYZ	Musselshell, Treasure, Yellowstone	22 min
Jul 1, 8:23 PM MDT	Severe Thunderstorm Warning	TFX	Blaine	41 min
Jul 1, 9:39 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Phillips, Valley	66 min
Jul 1, 10:29 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Garfield, McCone, Prairie	61 min
Jul 1, 10:42 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Valley	48 min
Jul 2, 3:43 PM MDT	Severe Thunderstorm Warning	BYZ	Powder River	28 min
Jul 2, 5:04 PM MDT	Severe Thunderstorm Warning	GGW	McCone, Richland, Roosevelt	56 min
Jul 2, 5:18 PM MDT	Severe Thunderstorm Warning	GGW	Wibaux	29 min
Jul 2, 5:38 PM MDT	Severe Thunderstorm Warning	BYZ	Carter	31 min
Jul 2, 5:48 PM MDT	Severe Thunderstorm Warning	BYZ	Carter	38 min
Jul 2, 5:52 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Richland, Roosevelt, Sheridan	53 min
Jul 2, 6:08 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Powder River	18 min
Jul 2, 6:18 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Sheridan	57 min
Jul 2, 6:38 PM MDT	Severe Thunderstorm Warning	GGW	Richland, Roosevelt, Sheridan	67 min
Jul 2, 7:02 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Roosevelt, Sheridan	58 min
Jul 2, 7:09 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Petroleum	66 min
Jul 2, 7:17 PM MDT	Severe Thunderstorm Warning	GGW	Richland	46 min
Jul 2, 7:42 PM MDT	Severe Thunderstorm Warning	BYZ	Fallon	18 min
Jul 2, 7:48 PM MDT	Severe Thunderstorm Warning	BYZ	Rosebud	51 min
Jul 2, 7:56 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Roosevelt, Sheridan	64 min
Jul 2, 8:39 PM MDT	Severe Thunderstorm Warning	BYZ	Rosebud	32 min
Jul 2, 8:43 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Prairie	62 min
Jul 2, 9:10 PM MDT	Severe Thunderstorm Warning	GGW	Richland	65 min
Jul 2, 9:11 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Custer, Rosebud	49 min
Jul 2, 9:32 PM MDT	Severe Thunderstorm Warning	GGW	Sheridan	43 min
Jul 2, 9:40 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Prairie	65 min
Jul 2, 11:03 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Richland, Roosevelt, Wibaux	57 min
Jul 2, 11:44 PM MDT	Severe Thunderstorm Warning	GGW	Sheridan	39 min
Jul 2, 11:53 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Richland, Roosevelt, Wibaux	67 min
Jul 3, 2:34 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	40 min
Jul 3, 3:00 PM MDT	Severe Thunderstorm Warning	GGW	Petroleum	23 min
Jul 3, 4:08 PM MDT	Severe Thunderstorm Warning	GGW	Valley	67 min
Jul 3, 4:52 PM MDT	Severe Thunderstorm Warning	BYZ	Custer	32 min
Jul 3, 4:53 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Roosevelt, Valley	67 min
Jul 3, 4:58 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn	26 min
Jul 3, 6:00 PM MDT	Severe Thunderstorm Warning	GGW	McCone, Roosevelt, Valley	47 min
Jul 3, 6:05 PM MDT	Severe Thunderstorm Warning	GGW	McCone	55 min
Jul 3, 6:50 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone	55 min
Jul 3, 7:02 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Richland	47 min
Jul 3, 7:39 PM MDT	Severe Thunderstorm Warning	GGW	Prairie	55 min
Jul 3, 7:55 PM MDT	Severe Thunderstorm Warning	GGW	Roosevelt, Sheridan	65 min
Jul 3, 8:54 PM MDT	Severe Thunderstorm Warning	GGW	Sheridan	66 min
Jul 3, 9:15 PM MDT	Severe Thunderstorm Warning	GGW	Richland, Roosevelt	60 min
Jul 5, 3:25 PM MDT	Severe Thunderstorm Warning	TFX	Gallatin	50 min
Jul 5, 4:27 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Fallon	14 min
Jul 5, 4:56 PM MDT	Severe Thunderstorm Warning	TFX	Broadwater	30 min
Jul 5, 6:25 PM MDT	Severe Thunderstorm Warning	TFX	Judith Basin	58 min
Jul 5, 7:05 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	70 min
Jul 5, 7:49 PM MDT	Severe Thunderstorm Warning	TFX	Blaine, Fergus	71 min
Jul 5, 7:52 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	68 min
Jul 5, 8:07 PM MDT	Severe Thunderstorm Warning Considerable damage threat	GGW	Garfield, Petroleum, Phillips	53 min
Jul 5, 10:08 PM MDT	Severe Thunderstorm Warning	TFX	Blaine	56 min
Jul 6, 12:08 AM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Richland, Roosevelt	67 min
Jul 6, 12:12 AM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Richland	63 min
Jul 6, 12:45 AM MDT	Severe Thunderstorm Warning	GGW	Dawson, Richland, Roosevelt, Sheridan	42 min
Jul 7, 5:02 PM MDT	Severe Thunderstorm Warning	GGW	Phillips	46 min
Jul 7, 5:19 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	35 min
Jul 7, 6:02 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley, Musselshell, Yellowstone	36 min
Jul 7, 6:37 PM MDT	Severe Thunderstorm Warning	BYZ	Musselshell, Yellowstone	27 min
Jul 8, 3:04 AM MDT	Severe Thunderstorm Warning	BYZ	Powder River	46 min
Jul 8, 2:19 PM MDT	Severe Thunderstorm Warning	BYZ	Musselshell	41 min
Jul 8, 3:54 PM MDT	Severe Thunderstorm Warning	TFX	Broadwater, Gallatin	51 min
Jul 8, 5:08 PM MDT	Severe Thunderstorm Warning	TFX	Fergus, Judith Basin	52 min
Jul 8, 5:52 PM MDT	Severe Thunderstorm Warning	TFX	Chouteau, Fergus	38 min
Jul 8, 5:55 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Fergus, Judith Basin	35 min
Jul 8, 7:45 PM MDT	Severe Thunderstorm Warning	TFX	Blaine, Fergus	34 min
Jul 8, 10:49 PM MDT	Severe Thunderstorm Warning	TFX	Hill	40 min
Jul 9, 4:51 AM MDT	Severe Thunderstorm Warning	GGW	McCone, Richland, Roosevelt	54 min
Jul 12, 5:11 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Chouteau, Teton	34 min
Jul 12, 5:32 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Chouteau, Judith Basin	58 min
Jul 12, 5:55 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Petroleum, Phillips, Valley	65 min
Jul 12, 6:06 PM MDT	Severe Thunderstorm Warning	GGW	Petroleum	54 min
Jul 12, 6:43 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	32 min
Jul 12, 6:55 PM MDT	Severe Thunderstorm Warning	GGW	Petroleum, Phillips, Valley	65 min
Jul 13, 8:28 PM MDT	Severe Thunderstorm Warning	TFX	Madison	62 min
Jul 14, 5:15 PM MDT	Severe Thunderstorm Warning	TFX	Blaine, Fergus	45 min
Jul 14, 5:29 PM MDT	Severe Thunderstorm Warning	TFX	Fergus, Judith Basin	46 min
Jul 14, 5:32 PM MDT	Severe Thunderstorm Warning	TFX	Blaine, Chouteau, Fergus	28 min
Jul 14, 5:53 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	52 min
Jul 14, 5:55 PM MDT	Severe Thunderstorm Warning	TFX	Fergus, Judith Basin	50 min
Jul 14, 5:59 PM MDT	Severe Thunderstorm Warning	BYZ	Wheatland	16 min
Jul 14, 6:15 PM MDT	Severe Thunderstorm Warning	BYZ	Wheatland	45 min
Jul 14, 6:25 PM MDT	Severe Thunderstorm Warning	BYZ	Sweet Grass	17 min
Jul 14, 6:25 PM MDT	Severe Thunderstorm Warning Destructive damage threat	TFX	Fergus, Judith Basin	50 min
Jul 14, 6:40 PM MDT	Severe Thunderstorm Warning	BYZ	Sweet Grass, Wheatland	30 min
Jul 14, 6:48 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	42 min
Jul 14, 6:53 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	52 min
Jul 14, 6:55 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley, Wheatland	65 min
Jul 14, 7:18 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	87 min
Jul 14, 8:06 PM MDT	Severe Thunderstorm Warning Destructive damage threat	GGW	Petroleum	54 min
Jul 14, 8:19 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley, Musselshell	56 min
Jul 14, 8:37 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley, Musselshell	53 min
Jul 14, 8:57 PM MDT	Severe Thunderstorm Warning	GGW	Petroleum	63 min
Jul 14, 9:24 PM MDT	Severe Thunderstorm Warning	BYZ	Musselshell, Yellowstone	66 min
Jul 14, 9:35 PM MDT	Severe Thunderstorm Warning	BYZ	Musselshell, Rosebud, Yellowstone	55 min
Jul 14, 9:56 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Petroleum	64 min
Jul 14, 10:26 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Musselshell, Rosebud, Treasure, Yellowstone	64 min
Jul 14, 10:57 PM MDT	Severe Thunderstorm Warning	GGW	Garfield	63 min
Jul 14, 11:31 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Treasure, Yellowstone	59 min
Jul 15, 6:07 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Yellowstone	38 min
Jul 15, 7:43 PM MDT	Severe Thunderstorm Warning	TFX	Beaverhead, Madison	26 min
Jul 16, 2:10 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Judith Basin	35 min
Jul 16, 2:56 PM MDT	Severe Thunderstorm Warning	TFX	Judith Basin	34 min
Jul 16, 3:23 PM MDT	Severe Thunderstorm Warning	TFX	Jefferson, Lewis and Clark	52 min
Jul 16, 3:26 PM MDT	Severe Thunderstorm Warning	TFX	Judith Basin	64 min
Jul 16, 3:40 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Lewis and Clark	50 min
Jul 16, 3:55 PM MDT	Severe Thunderstorm Warning	TFX	Beaverhead	36 min
Jul 16, 4:14 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Broadwater, Jefferson	61 min
Jul 16, 4:25 PM MDT	Severe Thunderstorm Warning	TFX	Lewis and Clark	65 min
Jul 16, 4:28 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Fergus, Judith Basin	62 min
Jul 16, 4:29 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Lewis and Clark	61 min
Jul 16, 4:44 PM MDT	Severe Thunderstorm Warning	TFX	Lewis and Clark	42 min
Jul 16, 5:00 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley, Wheatland	60 min
Jul 16, 5:02 PM MDT	Severe Thunderstorm Warning	TFX	Beaverhead	58 min
Jul 16, 5:15 PM MDT	Severe Thunderstorm Warning	TFX	Meagher	73 min
Jul 16, 5:18 PM MDT	Severe Thunderstorm Warning	MSO	Lincoln, Sanders	27 min
Jul 16, 5:23 PM MDT	Severe Thunderstorm Warning	TFX	Cascade	36 min
Jul 16, 5:37 PM MDT	Severe Thunderstorm Warning	MSO	Deer Lodge, Silver Bow	23 min
Jul 16, 5:50 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley, Wheatland	55 min
Jul 16, 5:55 PM MDT	Severe Thunderstorm Warning	TFX	Broadwater, Gallatin	35 min
Jul 16, 6:38 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Golden Valley, Wheatland	67 min
Jul 16, 7:02 PM MDT	Severe Thunderstorm Warning	TFX	Glacier	44 min
Jul 16, 7:28 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Golden Valley, Musselshell	47 min
Jul 16, 8:07 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Golden Valley, Musselshell	53 min
Jul 16, 8:22 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Musselshell	53 min
Jul 16, 8:23 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley, Stillwater, Sweet Grass	37 min
Jul 16, 8:39 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Musselshell	51 min
Jul 16, 8:39 PM MDT	Severe Thunderstorm Warning	BYZ	Stillwater, Yellowstone	66 min
Jul 16, 9:05 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Yellowstone	70 min
Jul 16, 10:46 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Rosebud	44 min
Jul 17, 2:51 PM MDT	Severe Thunderstorm Warning	TFX	Lewis and Clark, Teton	54 min
Jul 17, 3:36 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Cascade, Lewis and Clark, Teton	24 min
Jul 17, 6:58 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Chouteau, Teton	32 min
Jul 17, 7:26 PM MDT	Severe Thunderstorm Warning	TFX	Broadwater, Meagher	37 min
Jul 17, 8:58 PM MDT	Severe Thunderstorm Warning	MSO	Flathead, Lincoln	40 min
Jul 18, 2:32 PM MDT	Severe Thunderstorm Warning	TFX	Beaverhead, Jefferson, Madison	28 min
Jul 18, 2:53 PM MDT	Severe Thunderstorm Warning	TFX	Broadwater, Gallatin, Jefferson, Madison	67 min
Jul 18, 5:00 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Lewis and Clark	45 min
Jul 18, 5:26 PM MDT	Severe Thunderstorm Warning	TFX	Lewis and Clark, Teton	64 min
Jul 18, 5:30 PM MDT	Severe Thunderstorm Warning	TFX	Liberty, Toole	60 min
Jul 18, 5:48 PM MDT	Severe Thunderstorm Warning	TFX	Pondera, Toole	57 min
Jul 18, 5:55 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Teton	35 min
Jul 18, 6:02 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Cascade, Teton	43 min
Jul 18, 6:06 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Carter	39 min
Jul 18, 6:21 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Cascade, Chouteau, Teton	24 min
Jul 18, 6:21 PM MDT	Severe Thunderstorm Warning	TFX	Hill, Liberty	54 min
Jul 18, 6:38 PM MDT	Severe Thunderstorm Warning	TFX	Toole	37 min
Jul 19, 4:42 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn	48 min
Jul 19, 5:28 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn	46 min
Jul 23, 9:10 PM MDT	Severe Thunderstorm Warning	MSO	Mineral, Missoula	35 min
Jul 23, 9:43 PM MDT	Severe Thunderstorm Warning	MSO	Missoula	32 min
Jul 23, 10:35 PM MDT	Severe Thunderstorm Warning	MSO	Deer Lodge, Silver Bow	25 min
Jul 23, 11:50 PM MDT	Severe Thunderstorm Warning	TFX	Broadwater, Gallatin, Jefferson, Lewis and Clark, Madison, Meagher	40 min
Jul 24, 6:11 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Gallatin, Madison	49 min
Jul 25, 3:39 PM MDT	Severe Thunderstorm Warning	TFX	Broadwater, Gallatin, Meagher	51 min
Jul 25, 3:52 PM MDT	Severe Thunderstorm Warning	GGW	Petroleum	68 min
Jul 25, 4:06 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Beaverhead, Madison	33 min
Jul 25, 4:45 PM MDT	Severe Thunderstorm Warning	TFX	Gallatin, Madison	47 min
Jul 25, 4:57 PM MDT	Severe Thunderstorm Warning	GGW	Garfield	63 min
Jul 25, 5:23 PM MDT	Severe Thunderstorm Warning	BYZ	Park	67 min
Jul 25, 5:57 PM MDT	Severe Thunderstorm Warning	GGW	Garfield	63 min
Jul 25, 6:23 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Sweet Grass	46 min
Jul 25, 6:35 PM MDT	Severe Thunderstorm Warning	GGW	Phillips	55 min
Jul 25, 6:45 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone	45 min
Jul 25, 6:48 PM MDT	Severe Thunderstorm Warning	BYZ	Stillwater, Sweet Grass	57 min
Jul 25, 7:19 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Carbon, Stillwater, Yellowstone	41 min
Jul 25, 7:24 PM MDT	Severe Thunderstorm Warning	GGW	Phillips, Valley	66 min
Jul 25, 7:28 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Richland	62 min
Jul 25, 7:37 PM MDT	Severe Thunderstorm Warning	BYZ	Yellowstone	53 min
Jul 25, 7:56 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	64 min
Jul 25, 8:04 PM MDT	Severe Thunderstorm Warning	GGW	Valley	41 min
Jul 25, 8:43 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Roosevelt, Valley	62 min
Jul 25, 9:39 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Roosevelt, Valley	40 min
Jul 29, 1:42 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Powder River	29 min
Jul 29, 2:57 PM MDT	Severe Thunderstorm Warning	BYZ	Powder River	30 min
Jul 29, 3:26 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Powder River	33 min
Aug 11, 3:49 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Carter, Fallon	56 min
Aug 11, 4:04 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Carter	41 min
Aug 11, 5:13 PM MDT	Severe Thunderstorm Warning	BYZ	Carter	32 min
Aug 12, 6:19 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Prairie	56 min
Aug 14, 4:08 PM MDT	Severe Thunderstorm Warning	MSO	Mineral, Missoula, Sanders	22 min
Aug 14, 4:30 PM MDT	Severe Thunderstorm Warning	MSO	Missoula, Sanders	45 min
Aug 14, 5:14 PM MDT	Severe Thunderstorm Warning	MSO	Missoula	26 min
Aug 14, 7:08 PM MDT	Severe Thunderstorm Warning	TFX	Broadwater, Gallatin	67 min
Aug 15, 5:53 PM MDT	Severe Thunderstorm Warning	BYZ	Wheatland	52 min
Aug 16, 5:44 PM MDT	Severe Thunderstorm Warning	TFX	Blaine	39 min
Aug 16, 6:25 PM MDT	Severe Thunderstorm Warning	GGW	Phillips	65 min
Aug 17, 2:21 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Lewis and Clark	39 min
Aug 17, 2:23 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley, Wheatland	37 min
Aug 17, 3:42 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Phillips, Valley	63 min
Aug 17, 3:47 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Chouteau, Teton	43 min
Aug 17, 4:44 PM MDT	Severe Thunderstorm Warning	GGW	Garfield	61 min
Aug 17, 5:16 PM MDT	Severe Thunderstorm Warning	BYZ	Custer	44 min
Aug 17, 5:46 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Prairie	59 min
Aug 17, 6:25 PM MDT	Severe Thunderstorm Warning	BYZ	Custer, Rosebud	50 min
Aug 17, 6:41 PM MDT	Severe Thunderstorm Warning	BYZ	Carter	49 min
Aug 17, 7:03 PM MDT	Severe Thunderstorm Warning	BYZ	Custer	42 min
Aug 18, 1:20 PM MDT	Severe Thunderstorm Warning	GGW	Garfield	25 min
Aug 18, 1:28 PM MDT	Severe Thunderstorm Warning	GGW	Petroleum	62 min
Aug 18, 1:32 PM MDT	Severe Thunderstorm Warning	BYZ	Rosebud	43 min
Aug 18, 2:12 PM MDT	Severe Thunderstorm Warning	BYZ	Rosebud	63 min
Aug 18, 2:28 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Petroleum	62 min
Aug 18, 3:04 PM MDT	Severe Thunderstorm Warning	BYZ	Custer, Rosebud	56 min
Aug 18, 3:07 PM MDT	Severe Thunderstorm Warning	BYZ	Musselshell, Rosebud	38 min
Aug 18, 3:42 PM MDT	Severe Thunderstorm Warning	BYZ	Rosebud, Treasure	24 min
Aug 18, 3:52 PM MDT	Severe Thunderstorm Warning	BYZ	Custer, Rosebud	38 min
Aug 18, 4:27 PM MDT	Severe Thunderstorm Warning	BYZ	Custer	21 min
Aug 18, 6:20 PM MDT	Severe Thunderstorm Warning	GGW	Petroleum, Phillips	55 min
Aug 18, 6:57 PM MDT	Severe Thunderstorm Warning	GGW	Petroleum	33 min
Aug 22, 5:27 PM MDT	Severe Thunderstorm Warning	MSO	Flathead, Lincoln	48 min
Aug 23, 2:41 PM MDT	Severe Thunderstorm Warning	TFX	Gallatin, Madison	64 min
Aug 23, 2:43 PM MDT	Severe Thunderstorm Warning	TFX	Hill, Liberty	62 min
Aug 23, 2:51 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	54 min
Aug 23, 3:33 PM MDT	Severe Thunderstorm Warning	TFX	Blaine, Chouteau, Hill	57 min
Aug 23, 3:40 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	36 min
Aug 23, 3:44 PM MDT	Severe Thunderstorm Warning	TFX	Blaine, Hill	91 min
Aug 23, 3:45 PM MDT	Severe Thunderstorm Warning	GGW	Petroleum, Phillips	60 min
Aug 23, 5:20 PM MDT	Severe Thunderstorm Warning	GGW	Phillips	55 min
Aug 23, 6:04 PM MDT	Severe Thunderstorm Warning Considerable damage threat	GGW	Phillips, Valley	56 min
Aug 23, 6:40 PM MDT	Severe Thunderstorm Warning Destructive damage threat	GGW	Valley	21 min
Aug 23, 6:59 PM MDT	Severe Thunderstorm Warning Considerable damage threat	GGW	Daniels, Garfield, McCone, Roosevelt, Valley	61 min
Aug 23, 7:27 PM MDT	Severe Thunderstorm Warning Considerable damage threat	GGW	Garfield, Petroleum	63 min
Aug 23, 8:02 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Sheridan	58 min
Aug 23, 8:53 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Roosevelt, Sheridan	67 min
Aug 25, 2:51 PM MDT	Severe Thunderstorm Warning	TFX	Gallatin	16 min
Aug 27, 5:11 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Yellowstone	49 min
Aug 27, 5:21 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Chouteau, Judith Basin, Meagher, Teton	54 min
Aug 27, 6:51 PM MDT	Severe Thunderstorm Warning	TFX	Blaine, Chouteau, Fergus, Hill	54 min
Aug 27, 7:42 PM MDT	Severe Thunderstorm Warning	TFX	Blaine, Chouteau, Fergus, Hill	54 min
Aug 29, 5:42 PM MDT	Severe Thunderstorm Warning	TFX	Blaine, Hill	67 min
Aug 30, 12:40 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Garfield, McCone, Prairie	65 min
Aug 30, 1:42 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Powder River	33 min
Aug 30, 2:05 PM MDT	Severe Thunderstorm Warning	BYZ	Powder River	40 min
Aug 30, 2:41 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Carter	37 min
Sep 2, 1:33 PM MDT	Severe Thunderstorm Warning	TFX	Beaverhead, Jefferson, Madison	57 min
Sep 2, 1:34 PM MDT	Severe Thunderstorm Warning	MSO	Deer Lodge, Granite, Powell, Silver Bow	26 min
Sep 2, 1:59 PM MDT	Severe Thunderstorm Warning	MSO	Powell	21 min
Sep 2, 2:13 PM MDT	Severe Thunderstorm Warning	TFX	Lewis and Clark	77 min
Sep 2, 2:23 PM MDT	Severe Thunderstorm Warning	TFX	Broadwater, Jefferson, Lewis and Clark	67 min
Sep 2, 2:57 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Cascade, Lewis and Clark, Teton	63 min
Sep 2, 3:15 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Broadwater, Lewis and Clark, Meagher	60 min
Sep 2, 3:22 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Cascade, Chouteau, Hill, Judith Basin, Liberty, Pondera and 2 more	53 min
Sep 2, 3:59 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Cascade, Chouteau, Lewis and Clark, Pondera, Teton	61 min
Sep 2, 4:13 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Cascade, Chouteau, Fergus, Hill, Judith Basin, Liberty and 3 more	62 min
Sep 2, 4:26 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Chouteau, Glacier, Hill, Liberty, Pondera, Toole	79 min
Sep 2, 4:36 PM MDT	Severe Thunderstorm Warning	TFX	Blaine	24 min
Sep 2, 5:48 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, McCone, Richland, Roosevelt, Sheridan	57 min
Sep 2, 5:57 PM MDT	Severe Thunderstorm Warning	GGW	Phillips	63 min
Sep 2, 6:46 PM MDT	Severe Thunderstorm Warning	BYZ	Custer, Fallon	34 min
Sep 2, 8:38 PM MDT	Severe Thunderstorm Warning	GGW	Garfield	30 min
Sep 2, 10:14 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Roosevelt, Valley	61 min
Sep 2, 10:42 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Garfield, McCone, Prairie, Richland, Roosevelt and 1 more	63 min
Sep 2, 11:08 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Roosevelt, Sheridan, Valley	67 min
Sep 2, 11:41 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Garfield, McCone, Prairie, Richland, Roosevelt	64 min
Sep 6, 4:04 PM MDT	Severe Thunderstorm Warning	TFX	Beaverhead	41 min
Sep 6, 4:18 PM MDT	Severe Thunderstorm Warning	MSO	Deer Lodge, Granite	27 min
Sep 6, 4:31 PM MDT	Severe Thunderstorm Warning	TFX	Beaverhead	29 min
Sep 6, 5:03 PM MDT	Severe Thunderstorm Warning	MSO	Powell	27 min
Sep 6, 5:23 PM MDT	Severe Thunderstorm Warning	BYZ	Carter	27 min
Sep 6, 5:27 PM MDT	Severe Thunderstorm Warning	TFX	Lewis and Clark	48 min
Sep 6, 6:11 PM MDT	Severe Thunderstorm Warning	TFX	Lewis and Clark	36 min
Sep 6, 6:36 PM MDT	Severe Thunderstorm Warning	TFX	Chouteau, Fergus, Judith Basin	39 min
Sep 6, 6:40 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	20 min
Sep 6, 6:42 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Judith Basin, Meagher	48 min
Sep 6, 6:53 PM MDT	Severe Thunderstorm Warning	TFX	Chouteau, Judith Basin	52 min
Sep 6, 7:10 PM MDT	Severe Thunderstorm Warning	TFX	Chouteau, Fergus	50 min
Sep 6, 7:13 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Lewis and Clark	25 min
Sep 6, 7:23 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Judith Basin, Meagher	67 min
Sep 6, 7:54 PM MDT	Severe Thunderstorm Warning	TFX	Chouteau	29 min
Sep 6, 8:05 PM MDT	Severe Thunderstorm Warning	TFX	Chouteau, Fergus	40 min
Sep 6, 8:29 PM MDT	Severe Thunderstorm Warning	TFX	Fergus, Judith Basin	46 min
Sep 6, 9:02 PM MDT	Severe Thunderstorm Warning	TFX	Blaine, Chouteau	58 min
Sep 6, 9:08 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	82 min
Sep 6, 9:36 PM MDT	Severe Thunderstorm Warning	TFX	Blaine	69 min
Sep 6, 9:54 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	36 min
Sep 6, 10:24 PM MDT	Severe Thunderstorm Warning Considerable damage threat	TFX	Fergus	31 min
Sep 6, 10:26 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	64 min
Sep 6, 10:40 PM MDT	Severe Thunderstorm Warning Destructive damage threat	GGW	Phillips	65 min
Sep 6, 10:58 PM MDT	Severe Thunderstorm Warning	TFX	Blaine	32 min
Sep 6, 11:25 PM MDT	Severe Thunderstorm Warning Considerable damage threat	GGW	Phillips	65 min
Sep 6, 11:28 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	47 min
Sep 6, 11:48 PM MDT	Severe Thunderstorm Warning Considerable damage threat	GGW	Phillips	57 min
Sep 7, 12:01 AM MDT	Severe Thunderstorm Warning Considerable damage threat	GGW	Phillips	59 min
Sep 7, 12:44 AM MDT	Severe Thunderstorm Warning	GGW	Phillips	61 min
Sep 7, 12:59 AM MDT	Severe Thunderstorm Warning	GGW	Phillips, Valley	61 min
Sep 7, 1:55 AM MDT	Severe Thunderstorm Warning	GGW	Valley	65 min
Sep 7, 3:05 AM MDT	Severe Thunderstorm Warning	BYZ	Musselshell	55 min
Sep 7, 12:25 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Petroleum	65 min
Sep 7, 12:36 PM MDT	Severe Thunderstorm Warning	BYZ	Musselshell	39 min
Sep 7, 12:55 PM MDT	Severe Thunderstorm Warning	BYZ	Rosebud, Treasure	65 min
Sep 7, 1:44 PM MDT	Severe Thunderstorm Warning	GGW	Garfield	61 min
Sep 7, 2:47 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Prairie	58 min
Sep 7, 3:44 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Richland	50 min
Sep 13, 9:02 PM MDT	Severe Thunderstorm Warning	TFX	Chouteau, Fergus	43 min
Sep 13, 9:28 PM MDT	Severe Thunderstorm Warning	TFX	Chouteau, Judith Basin	47 min

By county

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

14 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 2025

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.