Alert archive / Montana / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Montana, 2004
273 severe thunderstorm warnings in 2004. 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 2004. Tap one for its archive.
- Severe Thunderstorm Warnings
- 273
- Busiest month
- July106 severe thunderstorm warnings
- Busiest day
- August 5, 200423 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 |
|---|---|---|---|---|
| Mar 24, 4:04 PM MST | Severe Thunderstorm Warning | TFX | Cascade, Chouteau | 71 min |
| Mar 26, 5:42 PM MST | Severe Thunderstorm Warning | BYZ | Fallon | 33 min |
| Mar 26, 5:55 PM MST | Severe Thunderstorm Warning | BYZ | Carter | 65 min |
| Mar 26, 5:55 PM MST | Severe Thunderstorm Warning | GGW | Wibaux | 50 min |
| Mar 26, 6:05 PM MST | Severe Thunderstorm Warning | GGW | McCone | 55 min |
| Mar 26, 6:14 PM MST | Severe Thunderstorm Warning | BYZ | Carter | 31 min |
| Mar 26, 6:32 PM MST | Severe Thunderstorm Warning | BYZ | Fallon | 58 min |
| Mar 26, 7:05 PM MST | Severe Thunderstorm Warning | GGW | McCone, Richland | 55 min |
| Mar 26, 7:38 PM MST | Severe Thunderstorm Warning | GGW | Roosevelt | 67 min |
| Mar 26, 7:54 PM MST | Severe Thunderstorm Warning | GGW | Richland | 66 min |
| May 8, 1:55 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 50 min |
| May 10, 10:12 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 63 min |
| May 10, 10:27 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 63 min |
| May 20, 2:31 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 29 min |
| May 21, 3:30 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 60 min |
| May 21, 6:07 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 23 min |
| May 21, 6:41 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 64 min |
| May 22, 3:49 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon | 56 min |
| May 22, 5:03 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater | 27 min |
| May 22, 5:34 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater, Yellowstone | 56 min |
| May 23, 4:29 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 61 min |
| May 27, 1:14 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 31 min |
| May 27, 1:31 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 59 min |
| May 28, 7:23 PM MDT | Severe Thunderstorm Warning | GGW | Richland, Wibaux | 52 min |
| May 28, 9:26 PM MDT | Severe Thunderstorm Warning | GGW | Daniels | 64 min |
| Jun 5, 5:05 PM MDT | Severe Thunderstorm Warning | TFX | Glacier, Toole | 40 min |
| Jun 5, 5:46 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Chouteau, Pondera, Teton | 59 min |
| Jun 5, 5:53 PM MDT | Severe Thunderstorm Warning | TFX | Toole | 52 min |
| Jun 5, 6:25 PM MDT | Severe Thunderstorm Warning | TFX | Liberty | 50 min |
| Jun 5, 6:44 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Judith Basin | 61 min |
| Jun 5, 7:13 PM MDT | Severe Thunderstorm Warning | TFX | Hill, Liberty | 47 min |
| Jun 5, 7:35 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 55 min |
| Jun 5, 8:11 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Hill | 49 min |
| Jun 6, 3:48 AM MDT | Severe Thunderstorm Warning | TFX | Cascade, Lewis and Clark, Teton | 27 min |
| Jun 6, 4:09 AM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Hill | 21 min |
| Jun 6, 4:17 AM MDT | Severe Thunderstorm Warning | TFX | Cascade | 28 min |
| Jun 6, 4:54 AM MDT | Severe Thunderstorm Warning | TFX | Cascade, Chouteau, Judith Basin | 36 min |
| Jun 9, 4:00 PM MDT | Severe Thunderstorm Warning | MSO | Ravalli | 45 min |
| Jun 9, 4:29 PM MDT | Severe Thunderstorm Warning | MSO | Ravalli | 46 min |
| Jun 9, 4:35 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 40 min |
| Jun 9, 5:04 PM MDT | Severe Thunderstorm Warning | MSO | Ravalli | 11 min |
| Jun 9, 5:14 PM MDT | Severe Thunderstorm Warning | MSO | Lake | 46 min |
| Jun 9, 5:20 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 40 min |
| Jun 10, 4:05 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 55 min |
| Jun 10, 4:40 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 65 min |
| Jun 10, 5:28 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon | 62 min |
| Jun 10, 5:48 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 87 min |
| Jun 10, 7:14 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 61 min |
| Jun 22, 1:52 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 23 min |
| Jun 22, 2:52 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Sweet Grass | 33 min |
| Jun 22, 3:09 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater | 66 min |
| Jun 22, 4:11 PM MDT | Severe Thunderstorm Warning | BYZ | Sweet Grass | 49 min |
| Jun 22, 4:15 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon, Stillwater | 60 min |
| Jun 22, 5:13 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon | 62 min |
| Jun 23, 4:10 PM MDT | Severe Thunderstorm Warning | TFX | Glacier | 50 min |
| Jun 23, 4:28 PM MDT | Severe Thunderstorm Warning | TFX | Meagher | 32 min |
| Jun 23, 4:57 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 33 min |
| Jun 23, 5:51 PM MDT | Severe Thunderstorm Warning | TFX | Glacier | 54 min |
| Jun 23, 6:38 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 37 min |
| Jun 23, 7:37 PM MDT | Severe Thunderstorm Warning | TFX | Teton | 38 min |
| Jun 23, 7:43 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 32 min |
| Jun 23, 8:17 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Meagher | 28 min |
| Jun 24, 3:21 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead | 39 min |
| Jun 25, 3:30 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 30 min |
| Jun 25, 4:05 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 25 min |
| Jun 25, 8:10 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 50 min |
| Jun 26, 4:05 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon | 40 min |
| Jun 26, 4:14 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 31 min |
| Jun 28, 4:43 PM MDT | Severe Thunderstorm Warning | TFX | Jefferson | 47 min |
| Jul 1, 3:50 PM MDT | Severe Thunderstorm Warning | TFX | Hill | 40 min |
| Jul 1, 4:32 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Hill | 58 min |
| Jul 1, 5:07 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 53 min |
| Jul 1, 5:56 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 64 min |
| Jul 1, 6:25 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 65 min |
| Jul 1, 7:26 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 49 min |
| Jul 2, 2:28 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 62 min |
| Jul 3, 2:38 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 52 min |
| Jul 3, 3:36 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 54 min |
| Jul 3, 5:11 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 64 min |
| Jul 3, 5:46 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 59 min |
| Jul 4, 2:11 PM MDT | Severe Thunderstorm Warning | MSO | Lake, Sanders | 34 min |
| Jul 4, 2:40 PM MDT | Severe Thunderstorm Warning | MSO | Lake, Sanders | 35 min |
| Jul 4, 3:49 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 56 min |
| Jul 4, 6:37 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 53 min |
| Jul 4, 7:11 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 64 min |
| Jul 4, 7:16 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin | 29 min |
| Jul 7, 6:40 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 35 min |
| Jul 7, 6:59 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 61 min |
| Jul 7, 7:06 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Fallon | 54 min |
| Jul 7, 7:13 PM MDT | Severe Thunderstorm Warning | GGW | Richland, Roosevelt | 62 min |
| Jul 7, 7:14 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 61 min |
| Jul 7, 7:31 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 44 min |
| Jul 7, 7:54 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 66 min |
| Jul 7, 8:02 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 43 min |
| Jul 7, 8:12 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 48 min |
| Jul 7, 8:12 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 63 min |
| Jul 10, 1:24 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 66 min |
| Jul 10, 5:03 PM MDT | Severe Thunderstorm Warning | MSO | Powell | 42 min |
| Jul 10, 5:55 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Fallon | 65 min |
| Jul 10, 5:58 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 62 min |
| Jul 10, 7:04 PM MDT | Severe Thunderstorm Warning | TFX | Pondera | 26 min |
| Jul 10, 7:05 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 55 min |
| Jul 10, 7:19 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 41 min |
| Jul 10, 7:22 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 53 min |
| Jul 10, 7:35 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 55 min |
| Jul 10, 7:54 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 66 min |
| Jul 10, 8:12 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 48 min |
| Jul 10, 8:26 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 64 min |
| Jul 10, 9:32 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 58 min |
| Jul 10, 10:10 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 65 min |
| Jul 11, 3:42 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 63 min |
| Jul 11, 4:40 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 50 min |
| Jul 11, 4:47 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 43 min |
| Jul 11, 4:50 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 55 min |
| Jul 11, 5:00 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 60 min |
| Jul 11, 5:02 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 58 min |
| Jul 11, 5:07 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 53 min |
| Jul 11, 5:16 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 59 min |
| Jul 11, 5:39 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 36 min |
| Jul 11, 6:14 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 46 min |
| Jul 11, 6:30 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 30 min |
| Jul 11, 6:59 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 31 min |
| Jul 11, 7:03 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 42 min |
| Jul 11, 7:11 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 64 min |
| Jul 11, 7:11 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 64 min |
| Jul 11, 7:12 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Valley | 63 min |
| Jul 11, 7:13 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 47 min |
| Jul 11, 7:23 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 67 min |
| Jul 11, 7:27 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 63 min |
| Jul 11, 7:37 PM MDT | Severe Thunderstorm Warning | GGW | Prairie, Wibaux | 53 min |
| Jul 11, 7:50 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 55 min |
| Jul 11, 8:00 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 60 min |
| Jul 11, 8:09 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 66 min |
| Jul 11, 8:30 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 30 min |
| Jul 11, 8:41 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt, Sheridan | 64 min |
| Jul 11, 8:48 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 57 min |
| Jul 11, 8:59 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 61 min |
| Jul 11, 9:41 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 49 min |
| Jul 14, 5:46 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 29 min |
| Jul 14, 6:01 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 44 min |
| Jul 14, 6:05 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 10 min |
| Jul 14, 6:13 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 47 min |
| Jul 14, 6:46 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 34 min |
| Jul 14, 7:47 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 58 min |
| Jul 14, 9:09 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 51 min |
| Jul 15, 7:15 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 45 min |
| Jul 15, 7:33 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 42 min |
| Jul 15, 11:57 PM MDT | Severe Thunderstorm Warning | TFX | Liberty | 63 min |
| Jul 16, 12:08 AM MDT | Severe Thunderstorm Warning | TFX | Hill | 52 min |
| Jul 16, 1:00 AM MDT | Severe Thunderstorm Warning | TFX | Hill | 60 min |
| Jul 16, 2:08 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 67 min |
| Jul 16, 2:50 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 55 min |
| Jul 16, 3:49 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 56 min |
| Jul 16, 4:40 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 50 min |
| Jul 16, 5:58 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 62 min |
| Jul 16, 6:13 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 62 min |
| Jul 16, 6:55 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 65 min |
| Jul 16, 7:12 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 63 min |
| Jul 19, 1:53 PM MDT | Severe Thunderstorm Warning | MSO | Mineral | 52 min |
| Jul 19, 2:09 PM MDT | Severe Thunderstorm Warning | MSO | Sanders | 66 min |
| Jul 19, 2:37 PM MDT | Severe Thunderstorm Warning | MSO | Flathead, Lincoln | 38 min |
| Jul 19, 3:23 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 52 min |
| Jul 27, 8:26 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 34 min |
| Jul 27, 8:27 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 33 min |
| Jul 27, 9:02 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater, Yellowstone | 43 min |
| Jul 27, 9:45 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 60 min |
| Jul 30, 6:57 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 63 min |
| Jul 30, 7:19 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 56 min |
| Jul 30, 7:20 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 55 min |
| Jul 30, 8:13 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 62 min |
| Jul 30, 8:46 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 59 min |
| Jul 30, 9:04 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 56 min |
| Jul 30, 10:55 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 65 min |
| Jul 30, 11:33 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 57 min |
| Jul 30, 11:52 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 53 min |
| Jul 31, 9:23 PM MDT | Severe Thunderstorm Warning | TFX | Hill | 67 min |
| Aug 1, 1:33 AM MDT | Severe Thunderstorm Warning | GGW | Valley | 57 min |
| Aug 1, 2:21 AM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone, Roosevelt, Valley | 54 min |
| Aug 2, 4:36 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 24 min |
| Aug 2, 4:57 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 63 min |
| Aug 2, 7:32 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 28 min |
| Aug 2, 11:54 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 51 min |
| Aug 3, 2:01 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 29 min |
| Aug 3, 2:20 PM MDT | Severe Thunderstorm Warning | MSO | Lake, Missoula | 40 min |
| Aug 3, 2:34 PM MDT | Severe Thunderstorm Warning | TFX | Jefferson, Lewis and Clark | 26 min |
| Aug 3, 3:52 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon | 68 min |
| Aug 3, 4:06 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater | 54 min |
| Aug 3, 4:08 PM MDT | Severe Thunderstorm Warning | TFX | Jefferson | 67 min |
| Aug 3, 4:29 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 61 min |
| Aug 3, 4:39 PM MDT | Severe Thunderstorm Warning | TFX | Fergus, Judith Basin | 66 min |
| Aug 3, 5:33 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 57 min |
| Aug 3, 5:39 PM MDT | Severe Thunderstorm Warning | MSO | Lake | 51 min |
| Aug 3, 5:41 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 49 min |
| Aug 3, 5:55 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 65 min |
| Aug 3, 6:08 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 67 min |
| Aug 3, 6:14 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 61 min |
| Aug 3, 8:02 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 58 min |
| Aug 4, 5:25 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead | 35 min |
| Aug 4, 6:01 PM MDT | Severe Thunderstorm Warning | TFX | Madison | 59 min |
| Aug 4, 6:04 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin | 41 min |
| Aug 4, 6:51 PM MDT | Severe Thunderstorm Warning | BYZ | Sweet Grass | 24 min |
| Aug 4, 6:57 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin | 63 min |
| Aug 4, 7:01 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater | 59 min |
| Aug 4, 8:05 PM MDT | Severe Thunderstorm Warning | TFX | Judith Basin | 40 min |
| Aug 4, 8:34 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 56 min |
| Aug 4, 8:37 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 53 min |
| Aug 4, 8:41 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Sweet Grass | 64 min |
| Aug 4, 9:08 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 67 min |
| Aug 4, 9:44 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 61 min |
| Aug 4, 10:10 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 65 min |
| Aug 4, 10:45 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 30 min |
| Aug 4, 11:47 PM MDT | Severe Thunderstorm Warning | TFX | Hill | 28 min |
| Aug 5, 3:15 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 30 min |
| Aug 5, 3:39 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 51 min |
| Aug 5, 4:10 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 50 min |
| Aug 5, 4:48 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Judith Basin | 57 min |
| Aug 5, 4:57 PM MDT | Severe Thunderstorm Warning | TFX | Meagher | 48 min |
| Aug 5, 4:59 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 31 min |
| Aug 5, 5:01 PM MDT | Severe Thunderstorm Warning | TFX | Toole | 29 min |
| Aug 5, 5:45 PM MDT | Severe Thunderstorm Warning | TFX | Liberty, Toole | 45 min |
| Aug 5, 5:58 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 32 min |
| Aug 5, 6:47 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud, Treasure | 58 min |
| Aug 5, 7:32 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 58 min |
| Aug 5, 7:32 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 43 min |
| Aug 5, 7:55 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 65 min |
| Aug 5, 8:13 PM MDT | Severe Thunderstorm Warning | MSO | Granite | 47 min |
| Aug 5, 8:15 PM MDT | Severe Thunderstorm Warning | MSO | Ravalli | 45 min |
| Aug 5, 8:16 PM MDT | Severe Thunderstorm Warning | MSO | Ravalli | 44 min |
| Aug 5, 8:41 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 64 min |
| Aug 5, 9:33 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 57 min |
| Aug 5, 9:38 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 52 min |
| Aug 5, 9:40 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 65 min |
| Aug 5, 10:15 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 60 min |
| Aug 5, 10:31 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt, Valley | 59 min |
| Aug 6, 12:26 AM MDT | Severe Thunderstorm Warning | GGW | Garfield | 64 min |
| Aug 6, 4:42 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 63 min |
| Aug 6, 5:48 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 57 min |
| Aug 6, 6:32 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Fergus | 58 min |
| Aug 6, 7:11 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 64 min |
| Aug 6, 7:31 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Hill | 29 min |
| Aug 6, 8:00 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Hill | 30 min |
| Aug 6, 9:36 PM MDT | Severe Thunderstorm Warning | MSO | Sanders | 24 min |
| Aug 6, 9:48 PM MDT | Severe Thunderstorm Warning | MSO | Lake | 42 min |
| Aug 6, 11:41 PM MDT | Severe Thunderstorm Warning | TFX | Pondera, Teton | 34 min |
| Aug 7, 2:01 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 59 min |
| Aug 16, 8:53 PM MDT | Severe Thunderstorm Warning | TFX | Glacier | 67 min |
| Aug 17, 5:49 PM MDT | Severe Thunderstorm Warning | MSO | Mineral | 41 min |
| Aug 17, 8:51 PM MDT | Severe Thunderstorm Warning | TFX | Glacier | 69 min |
| Aug 19, 1:55 PM MDT | Severe Thunderstorm Warning | MSO | Flathead, Lake | 50 min |
| Aug 19, 3:48 PM MDT | Severe Thunderstorm Warning | MSO | Mineral | 57 min |
| Aug 19, 3:51 PM MDT | Severe Thunderstorm Warning | MSO | Sanders | 39 min |
| Aug 20, 6:36 PM MDT | Severe Thunderstorm Warning | MSO | Lake | 24 min |
| Aug 22, 3:38 PM MDT | Severe Thunderstorm Warning | TFX | Judith Basin | 52 min |
| Aug 22, 4:29 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 46 min |
| Aug 22, 5:47 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 28 min |
| Aug 22, 6:25 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 35 min |
| Aug 23, 12:56 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 64 min |
| Aug 23, 2:02 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 58 min |
| Aug 23, 2:41 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 64 min |
| Aug 23, 3:36 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 39 min |
| Aug 23, 3:53 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 67 min |
| Aug 31, 6:56 PM MDT | Severe Thunderstorm Warning | MSO | Powell | 34 min |
| Sep 1, 1:35 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 40 min |
| Sep 1, 2:03 PM MDT | Severe Thunderstorm Warning | TFX | Toole | 27 min |
| Sep 1, 2:08 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 37 min |
| Sep 1, 3:25 PM MDT | Severe Thunderstorm Warning | TFX | Hill, Liberty | 35 min |
| Sep 1, 4:04 PM MDT | Severe Thunderstorm Warning | MSO | Ravalli | 56 min |
| Sep 1, 4:31 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 59 min |
| Sep 1, 4:37 PM MDT | Severe Thunderstorm Warning | TFX | Liberty | 38 min |
| Sep 1, 5:25 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 65 min |
| Sep 1, 6:41 PM MDT | Severe Thunderstorm Warning | TFX | Teton | 34 min |
| Sep 1, 7:10 PM MDT | Severe Thunderstorm Warning | TFX | Pondera | 65 min |
| Sep 1, 7:31 PM MDT | Severe Thunderstorm Warning | TFX | Liberty, Toole | 59 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Cascade County15
- Fergus County14
- Chouteau County12
- Yellowstone County12
- Big Horn County12
- Hill County12
- Garfield County11
- Fallon County9
- Wibaux County9
- Roosevelt County9
- Dawson County9
- Blaine County9
- Missoula County9
- Phillips County9
- Valley County9
- Richland County8
- Lewis and Clark County8
- Lake County8
- McCone County7
- Stillwater County7
- Liberty County7
- Rosebud County7
- Carter County6
- Musselshell County6
- Carbon County6
- Toole County6
- Judith Basin County6
- Ravalli County6
- Powder River County5
- Glacier County5
- Teton County5
- Flathead County5
- Sanders County5
- Pondera County4
- Sweet Grass County4
- Wheatland County3
- Golden Valley County3
- Meagher County3
- Jefferson County3
- Petroleum County3
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20032005
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.