Alert archive / Montana / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Montana, 2006
258 severe thunderstorm warnings in 2006. 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 2006. Tap one for its archive.
- Severe Thunderstorm Warnings
- 258
- Busiest month
- June130 severe thunderstorm warnings
- Busiest day
- June 14, 200641 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 16, 7:56 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 49 min |
| Apr 16, 10:19 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Garfield, McCone, Prairie | 32 min |
| Apr 17, 12:54 AM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone, Roosevelt, Valley | 66 min |
| Apr 17, 4:31 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Carter | 32 days |
| May 20, 2:41 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 64 min |
| May 20, 3:15 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 30 min |
| May 20, 3:45 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 35 min |
| May 20, 4:23 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 67 min |
| May 20, 5:05 PM MDT | Severe Thunderstorm Warning | TFX | Hill | 25 min |
| May 20, 5:18 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater | 42 min |
| May 21, 3:20 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 40 min |
| May 21, 7:40 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 65 min |
| May 21, 8:17 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 43 min |
| May 22, 3:43 PM MDT | Severe Thunderstorm Warning | MSO | Lincoln, Sanders | 62 min |
| May 22, 3:43 PM MDT | Severe Thunderstorm Warning | MSO | Lincoln, Sanders | 62 min |
| May 22, 4:44 PM MDT | Severe Thunderstorm Warning | MSO | Lincoln | 61 min |
| May 22, 6:25 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Lewis and Clark | 65 min |
| May 22, 9:14 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 61 min |
| May 22, 10:47 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 43 min |
| May 23, 2:42 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Roosevelt, Valley | 63 min |
| May 23, 3:30 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 60 min |
| May 23, 4:23 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Valley | 67 min |
| May 25, 8:00 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 60 min |
| May 25, 8:38 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone, Prairie, Richland | 67 min |
| May 25, 8:58 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Fallon | 47 min |
| May 30, 4:54 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 51 min |
| Jun 4, 12:53 PM MDT | Severe Thunderstorm Warning | MSO | Ravalli | 52 min |
| Jun 4, 3:18 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 42 min |
| Jun 4, 3:42 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 63 min |
| Jun 4, 4:36 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin | 24 min |
| Jun 4, 4:37 PM MDT | Severe Thunderstorm Warning | BYZ | Park | 53 min |
| Jun 4, 4:41 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Judith Basin | 64 min |
| Jun 4, 4:57 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 63 min |
| Jun 4, 5:16 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 59 min |
| Jun 4, 5:25 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin | 37 min |
| Jun 4, 5:29 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Hill, Liberty | 61 min |
| Jun 4, 5:31 PM MDT | Severe Thunderstorm Warning | BYZ | Park, Sweet Grass | 59 min |
| Jun 4, 5:59 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Wheatland | 61 min |
| Jun 4, 6:02 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 58 min |
| Jun 4, 6:14 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater | 49 min |
| Jun 4, 6:16 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 59 min |
| Jun 4, 6:21 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Petroleum, Phillips | 54 min |
| Jun 4, 6:48 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 57 min |
| Jun 4, 7:04 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 56 min |
| Jun 4, 7:15 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Petroleum, Phillips, Valley | 60 min |
| Jun 4, 7:35 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell, Rosebud | 55 min |
| Jun 4, 7:47 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Treasure | 58 min |
| Jun 4, 8:25 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 65 min |
| Jun 4, 8:35 PM MDT | Severe Thunderstorm Warning | GGW | McCone, Roosevelt | 32 min |
| Jun 4, 9:00 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 60 min |
| Jun 4, 9:43 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone, Prairie | 62 min |
| Jun 4, 9:58 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 62 min |
| Jun 4, 10:48 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Richland, Wibaux | 57 min |
| Jun 7, 2:44 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead | 61 min |
| Jun 7, 5:28 PM MDT | Severe Thunderstorm Warning | TFX | Madison | 62 min |
| Jun 8, 2:38 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 37 min |
| Jun 8, 3:13 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 62 min |
| Jun 8, 3:30 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 60 min |
| Jun 8, 4:11 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 34 min |
| Jun 8, 4:44 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Rosebud | 61 min |
| Jun 8, 5:10 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Petroleum, Phillips | 65 min |
| Jun 8, 5:44 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 61 min |
| Jun 8, 6:17 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Petroleum, Phillips | 27 min |
| Jun 8, 6:42 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Powder River | 63 min |
| Jun 8, 7:30 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 30 min |
| Jun 8, 8:33 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 27 min |
| Jun 8, 9:56 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 34 min |
| Jun 9, 12:38 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead | 52 min |
| Jun 9, 1:01 PM MDT | Severe Thunderstorm Warning | TFX | Madison | 59 min |
| Jun 12, 1:52 AM MDT | Severe Thunderstorm Warning | BYZ | Carter, Powder River | 53 min |
| Jun 12, 2:37 AM MDT | Severe Thunderstorm Warning | BYZ | Carter | 83 min |
| Jun 12, 6:44 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 46 min |
| Jun 12, 7:14 PM MDT | Severe Thunderstorm Warning | MSO | Mineral, Missoula | 57 days |
| Jun 12, 7:26 PM MDT | Severe Thunderstorm Warning | MSO | Lake, Missoula | 57 days |
| Jun 12, 8:06 PM MDT | Severe Thunderstorm Warning | MSO | Lake, Lincoln, Sanders | 57 days |
| Jun 12, 8:31 PM MDT | Severe Thunderstorm Warning | MSO | Flathead, Lake | 57 days |
| Jun 12, 9:26 PM MDT | Severe Thunderstorm Warning | MSO | Mineral, Missoula | 57 days |
| Jun 12, 9:31 PM MDT | Severe Thunderstorm Warning | MSO | Lincoln | 59 days |
| Jun 12, 9:42 PM MDT | Severe Thunderstorm Warning | MSO | Lake, Mineral, Sanders | 59 days |
| Jun 13, 3:26 PM MDT | Severe Thunderstorm Warning | MSO | Missoula, Sanders | 58 days |
| Jun 13, 3:27 PM MDT | Severe Thunderstorm Warning | MSO | Lake, Mineral | 58 days |
| Jun 13, 4:08 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 63 days |
| Jun 13, 4:10 PM MDT | Severe Thunderstorm Warning | MSO | Flathead, Sanders | 64 days |
| Jun 13, 4:21 PM MDT | Severe Thunderstorm Warning | MSO | Flathead, Lake | 64 days |
| Jun 13, 5:17 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 64 days |
| Jun 13, 5:33 PM MDT | Severe Thunderstorm Warning | MSO | Sanders | 64 days |
| Jun 13, 5:45 PM MDT | Severe Thunderstorm Warning | MSO | Lincoln, Missoula | 64 days |
| Jun 13, 5:58 PM MDT | Severe Thunderstorm Warning | MSO | Mineral, Missoula | 64 days |
| Jun 13, 6:30 PM MDT | Severe Thunderstorm Warning | MSO | Deer Lodge, Missoula | 64 days |
| Jun 13, 6:41 PM MDT | Severe Thunderstorm Warning | MSO | Ravalli, Sanders | 69 days |
| Jun 13, 7:17 PM MDT | Severe Thunderstorm Warning | TFX | Glacier | 58 min |
| Jun 13, 7:28 PM MDT | Severe Thunderstorm Warning | TFX | Teton | 62 min |
| Jun 13, 8:09 PM MDT | Severe Thunderstorm Warning | TFX | Glacier | 66 min |
| Jun 13, 8:30 PM MDT | Severe Thunderstorm Warning | TFX | Teton | 60 min |
| Jun 13, 8:32 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 43 min |
| Jun 13, 8:39 PM MDT | Severe Thunderstorm Warning | MSO | Lake | 19 min |
| Jun 13, 8:45 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 45 min |
| Jun 13, 8:46 PM MDT | Severe Thunderstorm Warning | TFX | Pondera | 44 min |
| Jun 13, 8:54 PM MDT | Severe Thunderstorm Warning | MSO | Sanders | 36 min |
| Jun 13, 9:15 PM MDT | Severe Thunderstorm Warning | TFX | Glacier | 60 min |
| Jun 13, 9:36 PM MDT | Severe Thunderstorm Warning | MSO | Lake | 39 min |
| Jun 13, 10:23 PM MDT | Severe Thunderstorm Warning | TFX | Judith Basin | 39 min |
| Jun 13, 10:38 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 67 min |
| Jun 13, 11:10 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 65 min |
| Jun 14, 12:11 AM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 64 min |
| Jun 14, 12:12 AM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 63 min |
| Jun 14, 12:49 AM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 56 min |
| Jun 14, 1:34 AM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 56 min |
| Jun 14, 2:44 AM MDT | Severe Thunderstorm Warning | TFX | Fergus | 31 min |
| Jun 14, 4:33 AM MDT | Severe Thunderstorm Warning | GGW | Valley | 57 min |
| Jun 14, 5:45 AM MDT | Severe Thunderstorm Warning | GGW | Phillips, Valley | 32 min |
| Jun 14, 6:58 AM MDT | Severe Thunderstorm Warning | GGW | Valley | 62 min |
| Jun 14, 8:13 AM MDT | Severe Thunderstorm Warning | GGW | Phillips | 50 min |
| Jun 14, 10:26 AM MDT | Severe Thunderstorm Warning | GGW | Phillips | 64 min |
| Jun 14, 11:29 AM MDT | Severe Thunderstorm Warning | GGW | Phillips | 61 min |
| Jun 14, 11:34 AM MDT | Severe Thunderstorm Warning | BYZ | Carbon | 56 min |
| Jun 14, 12:56 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 42 min |
| Jun 14, 1:33 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 57 min |
| Jun 14, 2:25 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 65 min |
| Jun 14, 3:12 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 63 min |
| Jun 14, 3:24 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 41 min |
| Jun 14, 4:02 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 43 min |
| Jun 14, 4:10 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 57 min |
| Jun 14, 4:18 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 57 min |
| Jun 14, 4:54 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone, Prairie | 66 min |
| Jun 14, 5:11 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 64 min |
| Jun 14, 5:39 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 24 min |
| Jun 14, 5:46 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 59 min |
| Jun 14, 5:56 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone, Richland | 64 min |
| Jun 14, 6:07 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Prairie, Wibaux | 38 min |
| Jun 14, 6:14 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 61 min |
| Jun 14, 6:14 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 61 min |
| Jun 14, 6:29 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Richland, Roosevelt, Wibaux | 61 min |
| Jun 14, 6:42 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 63 min |
| Jun 14, 6:43 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 62 min |
| Jun 14, 6:56 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 19 min |
| Jun 14, 7:21 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Richland, Roosevelt | 54 min |
| Jun 14, 7:26 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Wibaux | 19 min |
| Jun 14, 7:42 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Wibaux | 33 min |
| Jun 14, 8:17 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Richland, Wibaux | 43 min |
| Jun 19, 4:28 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 62 min |
| Jun 19, 5:16 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 59 min |
| Jun 19, 5:32 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 33 min |
| Jun 19, 6:09 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 66 min |
| Jun 19, 6:41 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Rosebud | 31 min |
| Jun 19, 6:57 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 76 min |
| Jun 19, 7:14 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 61 min |
| Jun 20, 3:41 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 28 min |
| Jun 22, 6:21 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 54 min |
| Jun 22, 6:48 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 22 min |
| Jun 30, 1:11 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 64 min |
| Jun 30, 2:23 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone | 67 min |
| Jun 30, 3:08 PM MDT | Severe Thunderstorm Warning | GGW | Prairie, Wibaux | 67 min |
| Jun 30, 3:13 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Wibaux | 27 min |
| Jun 30, 4:16 PM MDT | Severe Thunderstorm Warning | GGW | Prairie, Wibaux | 48 min |
| Jun 30, 4:31 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 37 min |
| Jul 1, 12:16 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 21 min |
| Jul 1, 2:35 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Hill | 40 min |
| Jul 1, 2:53 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 52 min |
| Jul 1, 5:18 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 42 min |
| Jul 2, 7:25 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead | 50 min |
| Jul 3, 3:21 PM MDT | Severe Thunderstorm Warning | TFX | Meagher | 39 min |
| Jul 3, 3:24 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater, Sweet Grass | 66 min |
| Jul 3, 6:35 PM MDT | Severe Thunderstorm Warning | TFX | Madison | 55 min |
| Jul 3, 6:48 PM MDT | Severe Thunderstorm Warning | TFX | Glacier | 42 min |
| Jul 3, 7:30 PM MDT | Severe Thunderstorm Warning | TFX | Glacier | 23 min |
| Jul 6, 1:39 PM MDT | Severe Thunderstorm Warning | MSO | Lincoln | 51 min |
| Jul 6, 2:21 PM MDT | Severe Thunderstorm Warning | MSO | Mineral | 39 min |
| Jul 6, 2:32 PM MDT | Severe Thunderstorm Warning | MSO | Flathead, Lincoln | 43 min |
| Jul 6, 2:47 PM MDT | Severe Thunderstorm Warning | MSO | Mineral | 43 min |
| Jul 6, 2:57 PM MDT | Severe Thunderstorm Warning | MSO | Sanders | 63 min |
| Jul 6, 3:05 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 40 min |
| Jul 6, 3:22 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 53 min |
| Jul 10, 2:53 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 36 min |
| Jul 10, 4:21 PM MDT | Severe Thunderstorm Warning | MSO | Lincoln | 45 min |
| Jul 11, 7:22 PM MDT | Severe Thunderstorm Warning | TFX | Meagher | 38 min |
| Jul 11, 8:00 PM MDT | Severe Thunderstorm Warning | TFX | Meagher | 20 min |
| Jul 11, 8:24 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Judith Basin, Meagher | 66 min |
| Jul 11, 10:10 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 35 min |
| Jul 12, 5:35 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater, Yellowstone | 55 min |
| Jul 12, 6:28 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 62 min |
| Jul 12, 6:47 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 58 min |
| Jul 12, 7:21 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Phillips, Valley | 39 min |
| Jul 12, 7:26 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud, Treasure, Yellowstone | 64 min |
| Jul 12, 7:51 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Rosebud, Treasure | 54 min |
| Jul 12, 8:12 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Garfield, McCone, Roosevelt, Valley | 63 min |
| Jul 12, 8:28 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Powder River, Rosebud | 2 hr |
| Jul 12, 9:09 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Fallon | 81 min |
| Jul 20, 10:50 AM MDT | Severe Thunderstorm Warning | GGW | Dawson, Richland, Wibaux | 55 min |
| Jul 20, 4:21 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 32 min |
| Jul 23, 3:26 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Lewis and Clark | 49 min |
| Jul 24, 5:29 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 46 min |
| Jul 24, 6:17 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 28 min |
| Jul 26, 2:14 PM MDT | Severe Thunderstorm Warning | GGW | McCone, Richland, Roosevelt | 61 min |
| Jul 30, 5:46 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Sheridan | 50 min |
| Jul 30, 11:30 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Roosevelt, Sheridan | 38 min |
| Aug 7, 6:44 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 61 min |
| Aug 7, 7:05 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Wibaux | 55 min |
| Aug 7, 7:42 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 39 min |
| Aug 7, 8:00 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Wibaux | 60 min |
| Aug 7, 9:02 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Prairie, Wibaux | 58 min |
| Aug 7, 9:58 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 26 min |
| Aug 8, 4:20 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 39 min |
| Aug 8, 5:09 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 66 min |
| Aug 8, 6:09 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Roosevelt, Sheridan | 34 min |
| Aug 8, 6:20 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Prairie | 45 min |
| Aug 8, 8:09 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Richland | 66 min |
| Aug 8, 8:56 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Prairie, Richland | 33 min |
| Aug 9, 5:02 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 58 min |
| Aug 9, 5:39 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 46 min |
| Aug 9, 6:00 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Valley | 60 min |
| Aug 9, 6:59 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone, Valley | 61 min |
| Aug 9, 7:56 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone | 64 min |
| Aug 9, 8:47 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone, Prairie | 58 min |
| Aug 9, 10:23 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Wibaux | 52 min |
| Aug 10, 8:47 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 43 min |
| Aug 11, 5:05 PM MDT | Severe Thunderstorm Warning | GGW | Richland, Roosevelt | 35 min |
| Aug 12, 6:05 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 55 min |
| Aug 12, 6:32 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 58 min |
| Aug 12, 7:28 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 60 min |
| Aug 14, 7:22 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 42 min |
| Aug 15, 2:57 PM MDT | Severe Thunderstorm Warning | GGW | Richland, Roosevelt, Sheridan | 63 min |
| Aug 15, 4:01 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt, Sheridan | 44 min |
| Aug 16, 3:15 PM MDT | Severe Thunderstorm Warning | BYZ | Park | 34 min |
| Aug 16, 4:39 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin | 21 min |
| Aug 16, 4:47 PM MDT | Severe Thunderstorm Warning | BYZ | Park | 58 min |
| Aug 16, 4:54 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead, Madison | 51 min |
| Aug 16, 10:20 PM MDT | Severe Thunderstorm Warning | TFX | Meagher | 40 min |
| Aug 16, 11:08 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 37 min |
| Aug 16, 11:45 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Wheatland | 33 min |
| Aug 16, 11:48 PM MDT | Severe Thunderstorm Warning | TFX | Meagher | 57 min |
| Aug 17, 12:03 AM MDT | Severe Thunderstorm Warning | TFX | Fergus | 57 min |
| Aug 17, 12:05 AM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 55 min |
| Aug 17, 12:40 AM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 19 min |
| Aug 17, 2:30 PM MDT | Severe Thunderstorm Warning | BYZ | Park | 43 min |
| Aug 17, 3:10 PM MDT | Severe Thunderstorm Warning | BYZ | Sweet Grass | 65 min |
| Aug 17, 3:46 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 44 min |
| Aug 17, 3:50 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 41 min |
| Aug 17, 4:59 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater | 61 min |
| Aug 17, 5:45 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 60 min |
| Aug 17, 6:39 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 66 min |
| Aug 17, 7:32 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 58 min |
| Aug 17, 7:35 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud, Treasure | 40 min |
| Aug 17, 7:39 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 66 min |
| Aug 17, 7:55 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 24 min |
| Aug 17, 8:16 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 44 min |
| Aug 17, 8:38 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Fallon | 67 min |
| Aug 17, 8:48 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 57 min |
| Aug 17, 8:50 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 37 min |
| Aug 17, 11:42 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 49 min |
| Aug 19, 10:12 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 54 min |
| Aug 24, 3:28 AM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone, Richland | 62 min |
| Aug 24, 4:27 AM MDT | Severe Thunderstorm Warning | GGW | Richland, Roosevelt, Sheridan | 50 min |
| Aug 24, 4:49 AM MDT | Severe Thunderstorm Warning | GGW | Richland | 26 min |
| Aug 24, 9:07 AM MDT | Severe Thunderstorm Warning | GGW | Richland | 8 min |
| Aug 30, 10:59 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Sheridan | 31 min |
| Aug 30, 11:14 PM MDT | Severe Thunderstorm Warning | GGW | Daniels | 37 min |
| Aug 30, 11:54 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Roosevelt, Sheridan | 66 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Dawson County23
- McCone County16
- Rosebud County16
- Richland County16
- Wibaux County16
- Roosevelt County15
- Carter County15
- Valley County14
- Garfield County13
- Big Horn County13
- Prairie County12
- Powder River County12
- Phillips County11
- Yellowstone County11
- Missoula County11
- Sanders County10
- Daniels County10
- Custer County10
- Flathead County10
- Fergus County9
- Lincoln County9
- Lake County8
- Sheridan County8
- Fallon County7
- Mineral County7
- Chouteau County6
- Treasure County6
- Cascade County6
- Wheatland County6
- Petroleum County6
- Meagher County6
- Stillwater County5
- Park County5
- Glacier County5
- Lewis and Clark County4
- Golden Valley County4
- Blaine County4
- Beaverhead County4
- Madison County4
- Hill County3
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20052007
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.