Alert archive / Montana / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Montana, 2001
595 severe thunderstorm warnings in 2001. 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 2001. Tap one for its archive.
- Severe Thunderstorm Warnings
- 595
- Busiest month
- July414 severe thunderstorm warnings
- Busiest day
- July 22, 200148 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 30, 10:48 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 57 min |
| Apr 30, 11:42 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 48 min |
| May 1, 12:18 AM MDT | Severe Thunderstorm Warning | BYZ | Powder River, Rosebud | 42 min |
| May 10, 3:35 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Powder River | 55 min |
| May 25, 5:55 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Lewis and Clark | 35 min |
| May 26, 2:32 PM MDT | Severe Thunderstorm Warning | TFX | Broadwater, Jefferson | 28 min |
| May 26, 6:33 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon | 27 min |
| May 26, 7:35 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 25 min |
| May 28, 3:34 PM MDT | Severe Thunderstorm Warning | TFX | Judith Basin | 41 min |
| May 28, 3:35 PM MDT | Severe Thunderstorm Warning | MSO | Powell | 25 min |
| May 28, 3:50 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 40 min |
| May 28, 4:07 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 38 min |
| May 28, 5:18 PM MDT | Severe Thunderstorm Warning | MSO | Granite, Powell | 42 min |
| May 28, 5:47 PM MDT | Severe Thunderstorm Warning | MSO | Granite, Powell | 58 min |
| May 28, 7:16 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 44 min |
| May 29, 1:19 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River, Rosebud | 41 min |
| May 29, 1:40 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Carbon | 50 min |
| May 29, 2:18 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 27 min |
| May 29, 2:47 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 43 min |
| Jun 2, 2:16 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin, Meagher | 29 min |
| Jun 8, 3:53 AM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 37 min |
| Jun 8, 4:34 PM MDT | Severe Thunderstorm Warning | MSO | Flathead, Lake | 41 min |
| Jun 8, 6:16 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 29 min |
| Jun 8, 7:12 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon, Yellowstone | 48 min |
| Jun 8, 7:57 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 63 min |
| Jun 8, 8:36 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 54 min |
| Jun 8, 11:16 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 44 min |
| Jun 8, 11:19 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Rosebud | 41 min |
| Jun 9, 12:54 AM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 66 min |
| Jun 9, 1:16 AM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 59 min |
| Jun 9, 1:46 AM MDT | Severe Thunderstorm Warning | MSO | Missoula, Ravalli | 44 min |
| Jun 9, 1:46 AM MDT | Severe Thunderstorm Warning | MSO | Lake | 44 min |
| Jun 9, 1:46 AM MDT | Severe Thunderstorm Warning | MSO | Powell | 44 min |
| Jun 9, 3:14 AM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 61 min |
| Jun 9, 5:50 AM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 25 min |
| Jun 9, 6:20 AM MDT | Severe Thunderstorm Warning | TFX | Fergus | 35 min |
| Jun 9, 9:12 AM MDT | Severe Thunderstorm Warning | GGW | Garfield | 63 min |
| Jun 9, 10:27 AM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone | 63 min |
| Jun 9, 10:28 AM MDT | Severe Thunderstorm Warning | GGW | Phillips | 62 min |
| Jun 9, 11:24 AM MDT | Severe Thunderstorm Warning | GGW | Dawson | 66 min |
| Jun 9, 11:29 AM MDT | Severe Thunderstorm Warning | GGW | Phillips, Valley | 61 min |
| Jun 9, 12:28 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Valley | 62 min |
| Jun 9, 1:53 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 37 min |
| Jun 9, 2:39 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone | 36 min |
| Jun 9, 3:40 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 35 min |
| Jun 9, 7:10 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon, Stillwater | 50 min |
| Jun 9, 10:43 PM MDT | Severe Thunderstorm Warning | BYZ | Sweet Grass | 32 min |
| Jun 9, 11:14 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Stillwater | 61 min |
| Jun 9, 11:55 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 65 min |
| Jun 10, 6:06 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 54 min |
| Jun 10, 7:00 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 40 min |
| Jun 10, 9:29 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 61 min |
| Jun 10, 10:30 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 45 min |
| Jun 10, 11:26 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 64 min |
| Jun 11, 1:14 AM MDT | Severe Thunderstorm Warning | GGW | Dawson, Wibaux | 31 min |
| Jun 12, 3:31 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 59 min |
| Jun 15, 12:48 PM MDT | Severe Thunderstorm Warning | GGW | Richland, Roosevelt | 57 min |
| Jun 15, 12:58 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 62 min |
| Jun 15, 2:56 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 64 min |
| Jun 17, 3:04 PM MDT | Severe Thunderstorm Warning | GGW | McCone, Roosevelt | 56 min |
| Jun 17, 4:21 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 69 min |
| Jun 17, 6:43 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater, Sweet Grass | 62 min |
| Jun 17, 7:36 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon | 24 min |
| Jun 18, 12:11 AM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Treasure | 49 min |
| Jun 18, 12:44 AM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 46 min |
| Jun 18, 1:49 AM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 41 min |
| Jun 18, 1:59 AM MDT | Severe Thunderstorm Warning | BYZ | Custer | 31 min |
| Jun 18, 2:26 AM MDT | Severe Thunderstorm Warning | BYZ | Carter | 64 min |
| Jun 23, 1:10 AM MDT | Severe Thunderstorm Warning | GGW | Garfield | 65 min |
| Jun 23, 5:37 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Rosebud | 53 min |
| Jun 23, 5:47 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 58 min |
| Jun 23, 5:55 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater, Sweet Grass | 65 min |
| Jun 23, 6:05 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 40 min |
| Jun 23, 6:57 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater, Yellowstone | 63 min |
| Jun 23, 7:10 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 65 min |
| Jun 23, 7:26 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 49 min |
| Jun 24, 5:44 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Rosebud | 61 min |
| Jun 24, 6:32 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 58 min |
| Jun 24, 7:07 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 53 min |
| Jun 25, 4:08 AM MDT | Severe Thunderstorm Warning | GGW | Valley | 52 min |
| Jun 25, 5:04 AM MDT | Severe Thunderstorm Warning | GGW | Valley | 56 min |
| Jun 26, 7:28 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 62 min |
| Jun 26, 8:10 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon, Stillwater | 20 min |
| Jun 26, 9:25 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 65 min |
| Jun 26, 9:58 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 62 min |
| Jun 27, 3:39 AM MDT | Severe Thunderstorm Warning | GGW | Dawson | 66 min |
| Jun 27, 2:30 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 60 min |
| Jun 27, 2:34 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 41 min |
| Jun 27, 2:51 PM MDT | Severe Thunderstorm Warning | GGW | Prairie, Wibaux | 24 min |
| Jun 27, 2:55 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 35 min |
| Jun 27, 3:14 PM MDT | Severe Thunderstorm Warning | GGW | Prairie, Wibaux | 61 min |
| Jun 27, 3:29 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Fallon | 61 min |
| Jun 27, 4:15 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 60 min |
| Jun 27, 4:56 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 64 min |
| Jun 27, 5:00 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Lewis and Clark, Teton | 45 min |
| Jun 27, 5:12 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 63 min |
| Jun 27, 6:17 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 43 min |
| Jun 27, 6:30 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Chouteau, Judith Basin | 45 min |
| Jun 27, 7:27 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Fergus, Judith Basin | 48 min |
| Jun 27, 9:09 PM MDT | Severe Thunderstorm Warning | TFX | Fergus, Judith Basin | 51 min |
| Jun 27, 10:00 PM MDT | Severe Thunderstorm Warning | TFX | Fergus, Judith Basin | 45 min |
| Jun 27, 11:14 PM MDT | Severe Thunderstorm Warning | TFX | Fergus, Judith Basin | 46 min |
| Jun 28, 12:34 AM MDT | Severe Thunderstorm Warning | TFX | Fergus | 41 min |
| Jun 28, 1:45 AM MDT | Severe Thunderstorm Warning | TFX | Meagher | 30 min |
| Jun 28, 2:38 AM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 37 min |
| Jun 28, 2:56 AM MDT | Severe Thunderstorm Warning | TFX | Fergus, Judith Basin | 49 min |
| Jun 28, 3:13 AM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Wheatland | 47 min |
| Jun 28, 4:13 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Musselshell | 62 min |
| Jun 28, 4:37 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Stillwater | 53 min |
| Jun 28, 5:15 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 60 min |
| Jun 28, 6:09 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 66 min |
| Jun 28, 6:18 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 57 min |
| Jun 28, 6:45 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 60 min |
| Jun 28, 7:13 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 62 min |
| Jun 28, 7:17 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 58 min |
| Jun 28, 8:03 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 57 min |
| Jun 28, 8:11 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 59 min |
| Jun 28, 8:21 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 54 min |
| Jun 28, 9:10 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 50 min |
| Jun 28, 9:18 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 27 min |
| Jun 28, 9:41 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure, Yellowstone | 64 min |
| Jun 28, 9:52 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 58 min |
| Jun 28, 10:28 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 32 min |
| Jun 28, 11:00 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 60 min |
| Jun 28, 11:44 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 46 min |
| Jun 29, 12:00 AM MDT | Severe Thunderstorm Warning | BYZ | Custer | 60 min |
| Jun 29, 12:16 AM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 74 min |
| Jun 29, 12:58 AM MDT | Severe Thunderstorm Warning | BYZ | Custer | 62 min |
| Jun 29, 1:10 AM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 60 min |
| Jun 29, 1:26 AM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 49 min |
| Jun 29, 1:30 AM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 60 min |
| Jun 29, 1:59 AM MDT | Severe Thunderstorm Warning | BYZ | Custer | 61 min |
| Jun 29, 2:00 AM MDT | Severe Thunderstorm Warning | GGW | Prairie | 60 min |
| Jun 29, 2:15 AM MDT | Severe Thunderstorm Warning | BYZ | Carter, Powder River | 60 min |
| Jun 29, 2:20 AM MDT | Severe Thunderstorm Warning | GGW | Dawson | 55 min |
| Jun 29, 2:58 AM MDT | Severe Thunderstorm Warning | BYZ | Custer | 62 min |
| Jun 29, 3:14 AM MDT | Severe Thunderstorm Warning | BYZ | Carter | 46 min |
| Jun 29, 4:34 AM MDT | Severe Thunderstorm Warning | BYZ | Carter, Fallon | 56 min |
| Jun 29, 10:00 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 30 min |
| Jun 29, 10:42 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 18 min |
| Jun 29, 11:03 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 42 min |
| Jun 29, 11:06 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Petroleum | 54 min |
| Jun 29, 11:16 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Powder River | 44 min |
| Jun 29, 11:43 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 47 min |
| Jun 29, 11:52 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 53 min |
| Jun 29, 11:59 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 61 min |
| Jun 30, 12:03 AM MDT | Severe Thunderstorm Warning | BYZ | Custer | 57 min |
| Jun 30, 12:23 AM MDT | Severe Thunderstorm Warning | BYZ | Powder River, Rosebud | 67 min |
| Jun 30, 12:44 AM MDT | Severe Thunderstorm Warning | BYZ | Carter | 61 min |
| Jun 30, 12:59 AM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 61 min |
| Jun 30, 1:58 AM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 32 min |
| Jun 30, 3:02 AM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 58 min |
| Jul 1, 3:00 AM MDT | Severe Thunderstorm Warning | TFX | Glacier, Pondera | 30 min |
| Jul 1, 4:06 AM MDT | Severe Thunderstorm Warning | TFX | Pondera | 24 min |
| Jul 1, 4:34 AM MDT | Severe Thunderstorm Warning | TFX | Pondera, Toole | 41 min |
| Jul 1, 4:45 AM MDT | Severe Thunderstorm Warning | BYZ | Carter | 45 min |
| Jul 1, 5:37 AM MDT | Severe Thunderstorm Warning | BYZ | Custer | 53 min |
| Jul 1, 6:27 AM MDT | Severe Thunderstorm Warning | BYZ | Custer | 63 min |
| Jul 1, 7:20 AM MDT | Severe Thunderstorm Warning | BYZ | Carter | 55 min |
| Jul 1, 7:49 AM MDT | Severe Thunderstorm Warning | TFX | Blaine | 26 min |
| Jul 1, 7:57 AM MDT | Severe Thunderstorm Warning | GGW | Phillips | 63 min |
| Jul 1, 8:15 AM MDT | Severe Thunderstorm Warning | BYZ | Carter | 60 min |
| Jul 1, 11:37 AM MDT | Severe Thunderstorm Warning | GGW | Roosevelt, Valley | 53 min |
| Jul 1, 11:58 AM MDT | Severe Thunderstorm Warning | GGW | McCone, Roosevelt, Valley | 32 min |
| Jul 1, 12:30 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 30 min |
| Jul 1, 12:34 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 26 min |
| Jul 1, 12:51 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 54 min |
| Jul 1, 12:56 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 64 min |
| Jul 1, 1:41 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 64 min |
| Jul 1, 2:04 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 56 min |
| Jul 1, 3:01 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 59 min |
| Jul 1, 9:07 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater, Sweet Grass | 53 min |
| Jul 1, 9:18 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 57 min |
| Jul 1, 9:26 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 49 min |
| Jul 1, 10:15 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 60 min |
| Jul 2, 12:00 AM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 60 min |
| Jul 2, 12:16 AM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 59 min |
| Jul 2, 1:14 AM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Musselshell | 61 min |
| Jul 2, 2:14 AM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 61 min |
| Jul 2, 5:20 AM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 40 min |
| Jul 2, 5:36 AM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 54 min |
| Jul 2, 6:31 AM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 59 min |
| Jul 2, 7:01 AM MDT | Severe Thunderstorm Warning | BYZ | Rosebud, Treasure | 59 min |
| Jul 2, 7:11 AM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 49 min |
| Jul 2, 7:15 AM MDT | Severe Thunderstorm Warning | GGW | Prairie | 60 min |
| Jul 2, 7:51 AM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 39 min |
| Jul 2, 8:12 AM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 63 min |
| Jul 2, 8:52 AM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 23 min |
| Jul 2, 8:54 AM MDT | Severe Thunderstorm Warning | GGW | Prairie | 66 min |
| Jul 2, 9:13 AM MDT | Severe Thunderstorm Warning | GGW | Dawson | 62 min |
| Jul 2, 3:32 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 58 min |
| Jul 2, 4:16 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 59 min |
| Jul 5, 8:01 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 89 min |
| Jul 5, 8:05 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Rosebud | 40 min |
| Jul 5, 8:17 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 58 min |
| Jul 5, 8:47 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt, Sheridan | 88 min |
| Jul 5, 9:41 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 34 min |
| Jul 5, 9:54 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Powder River | 66 min |
| Jul 5, 9:54 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 36 min |
| Jul 5, 10:30 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Wibaux | 60 min |
| Jul 5, 10:45 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 60 min |
| Jul 5, 10:51 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 54 min |
| Jul 9, 6:39 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 66 min |
| Jul 10, 2:46 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 59 min |
| Jul 10, 2:59 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 61 min |
| Jul 10, 3:45 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 60 min |
| Jul 10, 4:28 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 62 min |
| Jul 10, 6:45 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 60 min |
| Jul 10, 7:47 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 58 min |
| Jul 10, 8:05 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 55 min |
| Jul 11, 6:10 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 50 min |
| Jul 12, 2:23 PM MDT | Severe Thunderstorm Warning | MSO | Powell | 52 min |
| Jul 12, 3:08 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 67 min |
| Jul 12, 3:45 PM MDT | Severe Thunderstorm Warning | TFX | Judith Basin | 45 min |
| Jul 12, 4:04 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 56 min |
| Jul 12, 4:24 PM MDT | Severe Thunderstorm Warning | TFX | Broadwater, Lewis and Clark | 36 min |
| Jul 12, 4:36 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 39 min |
| Jul 12, 4:41 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon | 34 min |
| Jul 12, 4:52 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 53 min |
| Jul 12, 5:02 PM MDT | Severe Thunderstorm Warning | TFX | Broadwater, Meagher | 43 min |
| Jul 12, 5:16 PM MDT | Severe Thunderstorm Warning | MSO | Deer Lodge, Granite, Powell | 59 min |
| Jul 12, 5:47 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 28 min |
| Jul 12, 6:16 PM MDT | Severe Thunderstorm Warning | MSO | Powell | 44 min |
| Jul 12, 7:04 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 41 min |
| Jul 12, 7:12 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 63 min |
| Jul 12, 7:25 PM MDT | Severe Thunderstorm Warning | TFX | Hill | 50 min |
| Jul 12, 7:41 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 64 min |
| Jul 12, 7:43 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 32 min |
| Jul 12, 7:48 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 42 min |
| Jul 12, 7:48 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 57 min |
| Jul 12, 7:48 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 27 min |
| Jul 12, 8:13 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 62 min |
| Jul 12, 8:30 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 60 min |
| Jul 12, 8:46 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 59 min |
| Jul 12, 8:51 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 54 min |
| Jul 12, 9:04 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 41 min |
| Jul 12, 9:30 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 60 min |
| Jul 12, 9:36 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 54 min |
| Jul 12, 9:45 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 75 min |
| Jul 12, 10:47 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 58 min |
| Jul 13, 12:58 PM MDT | Severe Thunderstorm Warning | TFX | Judith Basin | 32 min |
| Jul 13, 1:32 PM MDT | Severe Thunderstorm Warning | TFX | Judith Basin | 28 min |
| Jul 13, 2:32 PM MDT | Severe Thunderstorm Warning | MSO | Ravalli | 33 min |
| Jul 13, 2:52 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin | 28 min |
| Jul 13, 3:21 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 24 min |
| Jul 13, 4:17 PM MDT | Severe Thunderstorm Warning | BYZ | Sweet Grass, Wheatland | 58 min |
| Jul 13, 5:09 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 66 min |
| Jul 13, 5:20 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 40 min |
| Jul 13, 5:43 PM MDT | Severe Thunderstorm Warning | MSO | Silver Bow | 37 min |
| Jul 13, 5:57 PM MDT | Severe Thunderstorm Warning | TFX | Jefferson | 48 min |
| Jul 13, 6:00 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 60 min |
| Jul 13, 6:05 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Meagher | 40 min |
| Jul 13, 6:17 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater | 43 min |
| Jul 13, 6:30 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 60 min |
| Jul 13, 6:42 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Judith Basin | 48 min |
| Jul 13, 6:54 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 66 min |
| Jul 13, 7:33 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 57 min |
| Jul 13, 7:35 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater | 55 min |
| Jul 13, 8:00 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 60 min |
| Jul 13, 8:55 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Treasure | 65 min |
| Jul 13, 9:25 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 65 min |
| Jul 13, 9:59 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 61 min |
| Jul 13, 10:32 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 58 min |
| Jul 14, 2:35 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 60 min |
| Jul 14, 3:16 PM MDT | Severe Thunderstorm Warning | BYZ | Sweet Grass | 59 min |
| Jul 14, 4:14 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 61 min |
| Jul 14, 4:29 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Powder River | 61 min |
| Jul 14, 4:45 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 60 min |
| Jul 14, 4:56 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 64 min |
| Jul 14, 5:14 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 61 min |
| Jul 14, 5:35 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 40 min |
| Jul 14, 5:46 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 59 min |
| Jul 14, 5:47 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 58 min |
| Jul 14, 5:56 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 34 min |
| Jul 14, 6:27 PM MDT | Severe Thunderstorm Warning | TFX | Fergus, Judith Basin | 48 min |
| Jul 14, 6:45 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 60 min |
| Jul 14, 7:21 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 54 min |
| Jul 14, 7:45 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 60 min |
| Jul 14, 7:49 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 56 min |
| Jul 14, 8:29 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 61 min |
| Jul 15, 3:31 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 59 min |
| Jul 15, 4:20 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 30 min |
| Jul 15, 4:31 PM MDT | Severe Thunderstorm Warning | MSO | Granite | 44 min |
| Jul 15, 4:42 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 48 min |
| Jul 15, 4:44 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 61 min |
| Jul 15, 4:52 PM MDT | Severe Thunderstorm Warning | TFX | Teton | 38 min |
| Jul 15, 5:11 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 64 min |
| Jul 15, 5:13 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 62 min |
| Jul 15, 5:30 PM MDT | Severe Thunderstorm Warning | TFX | Teton | 45 min |
| Jul 15, 5:31 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 59 min |
| Jul 15, 5:44 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 61 min |
| Jul 15, 6:38 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 67 min |
| Jul 15, 7:07 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 53 min |
| Jul 15, 7:19 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 56 min |
| Jul 15, 7:33 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 57 min |
| Jul 16, 1:59 PM MDT | Severe Thunderstorm Warning | MSO | Powell | 46 min |
| Jul 16, 2:35 PM MDT | Severe Thunderstorm Warning | MSO | Silver Bow | 25 min |
| Jul 16, 2:53 PM MDT | Severe Thunderstorm Warning | TFX | Jefferson, Lewis and Clark | 37 min |
| Jul 16, 2:58 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 32 min |
| Jul 16, 3:53 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 37 min |
| Jul 16, 3:55 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Meagher | 35 min |
| Jul 16, 4:28 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Judith Basin, Meagher | 47 min |
| Jul 16, 4:34 PM MDT | Severe Thunderstorm Warning | TFX | Glacier, Pondera, Toole | 41 min |
| Jul 16, 5:18 PM MDT | Severe Thunderstorm Warning | TFX | Toole | 42 min |
| Jul 16, 5:23 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 52 min |
| Jul 16, 6:33 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 42 min |
| Jul 16, 7:12 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 63 min |
| Jul 16, 7:17 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 28 min |
| Jul 16, 8:09 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 66 min |
| Jul 17, 2:05 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 55 min |
| Jul 17, 3:00 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Wheatland | 60 min |
| Jul 17, 3:06 PM MDT | Severe Thunderstorm Warning | BYZ | Sweet Grass | 24 min |
| Jul 17, 3:22 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Judith Basin | 38 min |
| Jul 17, 4:03 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 57 min |
| Jul 17, 4:15 PM MDT | Severe Thunderstorm Warning | TFX | Fergus, Judith Basin | 45 min |
| Jul 17, 4:16 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon, Stillwater | 59 min |
| Jul 17, 4:54 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 66 min |
| Jul 17, 4:58 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 27 min |
| Jul 17, 5:36 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 54 min |
| Jul 17, 6:34 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 56 min |
| Jul 17, 6:40 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 65 min |
| Jul 17, 7:53 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 67 min |
| Jul 17, 8:52 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 53 min |
| Jul 17, 8:58 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone, Prairie | 62 min |
| Jul 17, 9:51 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 54 min |
| Jul 17, 9:57 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone, Prairie | 63 min |
| Jul 17, 10:24 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt, Sheridan | 66 min |
| Jul 17, 10:47 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 58 min |
| Jul 17, 10:56 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 64 min |
| Jul 17, 11:15 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 60 min |
| Jul 17, 11:26 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 64 min |
| Jul 17, 11:34 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt, Sheridan | 56 min |
| Jul 17, 11:46 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 59 min |
| Jul 17, 11:51 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 54 min |
| Jul 18, 12:32 AM MDT | Severe Thunderstorm Warning | BYZ | Custer | 58 min |
| Jul 18, 12:47 AM MDT | Severe Thunderstorm Warning | GGW | Prairie | 58 min |
| Jul 18, 1:52 AM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 53 min |
| Jul 18, 3:42 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 63 min |
| Jul 18, 4:03 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell, Rosebud | 57 min |
| Jul 18, 4:44 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 61 min |
| Jul 18, 5:16 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 44 min |
| Jul 18, 5:40 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 35 min |
| Jul 18, 5:48 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Fallon | 57 min |
| Jul 18, 6:00 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Powder River | 60 min |
| Jul 18, 6:12 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 48 min |
| Jul 18, 6:45 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 60 min |
| Jul 18, 6:59 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Powder River | 61 min |
| Jul 18, 7:42 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 63 min |
| Jul 18, 8:45 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 45 min |
| Jul 19, 10:39 AM MDT | Severe Thunderstorm Warning | GGW | Garfield | 66 min |
| Jul 19, 11:31 AM MDT | Severe Thunderstorm Warning | GGW | McCone | 59 min |
| Jul 19, 11:46 AM MDT | Severe Thunderstorm Warning | GGW | Garfield | 29 min |
| Jul 19, 1:09 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 66 min |
| Jul 19, 1:21 PM MDT | Severe Thunderstorm Warning | GGW | Richland, Roosevelt | 54 min |
| Jul 19, 2:02 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 58 min |
| Jul 19, 5:14 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 61 min |
| Jul 19, 6:15 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 60 min |
| Jul 19, 6:40 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater, Yellowstone | 35 min |
| Jul 19, 6:41 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 64 min |
| Jul 19, 6:51 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 54 min |
| Jul 19, 7:14 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 31 min |
| Jul 19, 7:15 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 60 min |
| Jul 19, 7:42 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell, Yellowstone | 63 min |
| Jul 19, 8:41 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 34 min |
| Jul 19, 10:45 PM MDT | Severe Thunderstorm Warning | TFX | Judith Basin | 45 min |
| Jul 20, 9:22 AM MDT | Severe Thunderstorm Warning | GGW | Phillips | 53 min |
| Jul 20, 11:47 AM MDT | Severe Thunderstorm Warning | GGW | Phillips | 58 min |
| Jul 20, 12:14 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 61 min |
| Jul 20, 12:53 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Roosevelt | 52 min |
| Jul 20, 1:14 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 61 min |
| Jul 20, 1:15 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 60 min |
| Jul 20, 4:23 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 67 min |
| Jul 20, 5:00 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin | 45 min |
| Jul 20, 5:45 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin | 45 min |
| Jul 20, 6:41 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 64 min |
| Jul 20, 7:09 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 66 min |
| Jul 20, 7:15 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 60 min |
| Jul 20, 7:24 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 66 min |
| Jul 20, 7:25 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 65 min |
| Jul 20, 8:08 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 67 min |
| Jul 20, 8:30 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 60 min |
| Jul 20, 8:53 PM MDT | Severe Thunderstorm Warning | MSO | Mineral, Missoula | 52 min |
| Jul 20, 9:27 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 63 min |
| Jul 20, 10:15 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 60 min |
| Jul 21, 2:41 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 49 min |
| Jul 21, 3:32 PM MDT | Severe Thunderstorm Warning | TFX | Judith Basin | 43 min |
| Jul 21, 3:54 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 51 min |
| Jul 21, 4:33 PM MDT | Severe Thunderstorm Warning | TFX | Judith Basin | 42 min |
| Jul 21, 4:45 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 45 min |
| Jul 21, 5:04 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 56 min |
| Jul 21, 5:23 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 67 min |
| Jul 21, 5:26 PM MDT | Severe Thunderstorm Warning | MSO | Ravalli | 49 min |
| Jul 21, 5:43 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 62 min |
| Jul 21, 6:20 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 55 min |
| Jul 21, 6:22 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 68 min |
| Jul 21, 6:29 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 61 min |
| Jul 21, 6:30 PM MDT | Severe Thunderstorm Warning | MSO | Granite, Ravalli | 45 min |
| Jul 21, 6:30 PM MDT | Severe Thunderstorm Warning | TFX | Meagher | 30 min |
| Jul 21, 6:31 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 59 min |
| Jul 21, 6:48 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 57 min |
| Jul 21, 6:53 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 67 min |
| Jul 21, 7:06 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 69 min |
| Jul 21, 7:08 PM MDT | Severe Thunderstorm Warning | MSO | Ravalli | 52 min |
| Jul 21, 7:26 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 64 min |
| Jul 21, 7:31 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 59 min |
| Jul 21, 7:50 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 25 min |
| Jul 21, 7:56 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 64 min |
| Jul 21, 8:13 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 62 min |
| Jul 21, 8:18 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 57 min |
| Jul 21, 8:53 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 67 min |
| Jul 21, 8:55 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 65 min |
| Jul 21, 9:00 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 60 min |
| Jul 21, 9:17 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 58 min |
| Jul 21, 9:17 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 58 min |
| Jul 21, 9:47 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 58 min |
| Jul 21, 9:54 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 66 min |
| Jul 21, 9:57 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 63 min |
| Jul 21, 10:00 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 60 min |
| Jul 21, 10:07 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 68 min |
| Jul 21, 10:14 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 61 min |
| Jul 21, 10:32 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 58 min |
| Jul 21, 10:50 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 55 min |
| Jul 21, 11:00 PM MDT | Severe Thunderstorm Warning | GGW | Richland, Roosevelt | 60 min |
| Jul 21, 11:06 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Rosebud | 54 min |
| Jul 21, 11:14 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 61 min |
| Jul 21, 11:22 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 53 min |
| Jul 21, 11:32 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 58 min |
| Jul 22, 12:07 AM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 53 min |
| Jul 22, 12:26 AM MDT | Severe Thunderstorm Warning | BYZ | Custer | 59 min |
| Jul 22, 1:20 AM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 55 min |
| Jul 22, 2:03 AM MDT | Severe Thunderstorm Warning | BYZ | Custer | 57 min |
| Jul 22, 2:56 AM MDT | Severe Thunderstorm Warning | BYZ | Custer | 64 min |
| Jul 22, 2:30 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 60 min |
| Jul 22, 3:20 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 55 min |
| Jul 22, 3:22 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Treasure | 53 min |
| Jul 22, 4:04 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 86 min |
| Jul 22, 4:11 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 64 min |
| Jul 22, 4:31 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 89 min |
| Jul 22, 5:29 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 91 min |
| Jul 22, 5:56 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 64 min |
| Jul 22, 5:58 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 32 min |
| Jul 22, 8:38 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 67 min |
| Jul 23, 4:56 PM MDT | Severe Thunderstorm Warning | TFX | Meagher | 34 min |
| Jul 23, 5:03 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Musselshell | 57 min |
| Jul 23, 5:04 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 56 min |
| Jul 23, 5:59 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 61 min |
| Jul 23, 6:12 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Rosebud | 63 min |
| Jul 23, 6:44 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Powder River | 61 min |
| Jul 23, 6:49 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud, Treasure, Yellowstone | 56 min |
| Jul 23, 7:42 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 63 min |
| Jul 23, 7:54 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 51 min |
| Jul 23, 8:05 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon, Stillwater | 40 min |
| Jul 23, 8:30 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon, Yellowstone | 60 min |
| Jul 23, 9:03 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon | 57 min |
| Jul 23, 9:56 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 64 min |
| Jul 23, 10:04 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon, Stillwater | 56 min |
| Jul 24, 3:54 PM MDT | Severe Thunderstorm Warning | GGW | Phillips, Valley | 66 min |
| Jul 24, 4:59 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 61 min |
| Jul 24, 5:09 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 66 min |
| Jul 24, 6:00 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 60 min |
| Jul 24, 7:17 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 58 min |
| Jul 24, 7:30 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 60 min |
| Jul 24, 8:12 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 63 min |
| Jul 24, 8:50 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 55 min |
| Jul 24, 9:33 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 57 min |
| Jul 24, 9:51 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 54 min |
| Jul 24, 9:53 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 67 min |
| Jul 24, 10:30 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 60 min |
| Jul 24, 10:42 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 63 min |
| Jul 24, 10:44 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 61 min |
| Jul 24, 11:15 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Valley | 60 min |
| Jul 24, 11:35 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 55 min |
| Jul 24, 11:43 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 62 min |
| Jul 24, 11:48 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 57 min |
| Jul 25, 12:01 AM MDT | Severe Thunderstorm Warning | GGW | Richland | 59 min |
| Jul 25, 12:15 AM MDT | Severe Thunderstorm Warning | GGW | Garfield | 60 min |
| Jul 25, 12:43 AM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 62 min |
| Jul 25, 12:44 AM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 61 min |
| Jul 25, 12:44 AM MDT | Severe Thunderstorm Warning | GGW | McCone | 61 min |
| Jul 25, 12:53 AM MDT | Severe Thunderstorm Warning | GGW | Dawson | 67 min |
| Jul 25, 12:58 AM MDT | Severe Thunderstorm Warning | GGW | Richland | 62 min |
| Jul 25, 1:33 AM MDT | Severe Thunderstorm Warning | BYZ | Custer | 57 min |
| Jul 25, 1:42 AM MDT | Severe Thunderstorm Warning | GGW | McCone | 63 min |
| Jul 25, 1:45 AM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 60 min |
| Jul 25, 2:00 AM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 60 min |
| Jul 25, 2:22 AM MDT | Severe Thunderstorm Warning | GGW | Dawson | 53 min |
| Jul 25, 3:28 AM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 47 min |
| Jul 25, 3:36 AM MDT | Severe Thunderstorm Warning | BYZ | Carter | 69 min |
| Jul 25, 4:36 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 54 min |
| Jul 25, 4:49 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Wibaux | 56 min |
| Jul 25, 5:45 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 60 min |
| Jul 25, 6:08 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 67 min |
| Jul 25, 6:46 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 59 min |
| Jul 25, 7:00 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 30 min |
| Jul 25, 7:30 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 30 min |
| Jul 25, 8:00 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 60 min |
| Jul 26, 7:53 AM MDT | Severe Thunderstorm Warning | TFX | Fergus | 52 min |
| Jul 26, 10:13 AM MDT | Severe Thunderstorm Warning | GGW | Phillips | 62 min |
| Jul 26, 10:30 AM MDT | Severe Thunderstorm Warning | GGW | Garfield | 60 min |
| Jul 26, 11:00 AM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Wheatland | 60 min |
| Jul 26, 11:13 AM MDT | Severe Thunderstorm Warning | GGW | Valley | 62 min |
| Jul 26, 12:00 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 60 min |
| Jul 26, 12:42 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 63 min |
| Jul 26, 12:59 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 61 min |
| Jul 26, 1:46 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 59 min |
| Jul 26, 2:12 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 63 min |
| Jul 26, 2:26 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 64 min |
| Jul 26, 2:30 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 60 min |
| Jul 26, 3:12 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 63 min |
| Jul 26, 3:15 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 60 min |
| Jul 26, 3:27 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 93 min |
| Jul 26, 3:30 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 60 min |
| Jul 26, 3:34 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 56 min |
| Jul 26, 3:37 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 53 min |
| Jul 26, 4:15 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 60 min |
| Jul 26, 4:15 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 60 min |
| Jul 26, 5:15 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 60 min |
| Jul 26, 5:18 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 57 min |
| Jul 26, 5:52 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 58 min |
| Jul 26, 5:55 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 65 min |
| Jul 26, 6:12 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 63 min |
| Jul 26, 6:18 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 42 min |
| Jul 26, 6:25 PM MDT | Severe Thunderstorm Warning | BYZ | Sweet Grass | 65 min |
| Jul 26, 6:26 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon | 64 min |
| Jul 26, 6:51 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 69 min |
| Jul 26, 7:05 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River, Rosebud | 55 min |
| Jul 26, 7:45 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Fallon | 75 min |
| Jul 26, 9:00 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 60 min |
| Jul 27, 8:20 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 55 min |
| Jul 27, 8:53 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater, Yellowstone | 67 min |
| Jul 27, 9:00 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 60 min |
| Jul 27, 9:22 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon | 38 min |
| Jul 27, 9:52 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 53 min |
| Jul 27, 10:00 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 60 min |
| Jul 27, 10:49 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 56 min |
| Jul 27, 11:10 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure, Yellowstone | 65 min |
| Jul 27, 11:38 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud, Treasure | 67 min |
| Jul 28, 1:15 AM MDT | Severe Thunderstorm Warning | BYZ | Custer | 60 min |
| Jul 28, 1:47 AM MDT | Severe Thunderstorm Warning | BYZ | Custer, Powder River | 58 min |
| Jul 28, 2:25 AM MDT | Severe Thunderstorm Warning | BYZ | Carter, Fallon | 80 min |
| Jul 28, 3:53 AM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 67 min |
| Jul 28, 3:06 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Chouteau, Judith Basin | 54 min |
| Jul 28, 3:20 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 55 min |
| Jul 28, 3:33 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Chouteau, Fergus, Hill | 57 min |
| Jul 28, 3:51 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Chouteau, Fergus | 54 min |
| Jul 28, 4:07 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 38 min |
| Jul 28, 4:15 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell, Rosebud | 60 min |
| Jul 28, 4:15 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Hill | 60 min |
| Jul 28, 4:40 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 60 min |
| Jul 28, 4:44 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 61 min |
| Jul 28, 4:55 PM MDT | Severe Thunderstorm Warning | TFX | Hill | 60 min |
| Jul 28, 5:01 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 44 min |
| Jul 28, 5:27 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 63 min |
| Jul 28, 5:40 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Rosebud | 60 min |
| Jul 28, 5:44 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 61 min |
| Jul 28, 5:56 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 64 min |
| Jul 28, 6:28 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 62 min |
| Jul 28, 6:40 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 60 min |
| Jul 28, 7:20 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 70 min |
| Jul 28, 7:30 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 45 min |
| Jul 28, 9:50 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 70 min |
| Jul 29, 12:03 AM MDT | Severe Thunderstorm Warning | GGW | Daniels | 57 min |
| Jul 29, 12:43 AM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 62 min |
| Jul 31, 1:10 AM MDT | Severe Thunderstorm Warning | BYZ | Custer | 35 min |
| Jul 31, 1:43 AM MDT | Severe Thunderstorm Warning | GGW | Prairie | 62 min |
| Jul 31, 1:46 AM MDT | Severe Thunderstorm Warning | GGW | Dawson | 59 min |
| Aug 3, 6:02 PM MDT | Severe Thunderstorm Warning | BYZ | Park | 58 min |
| Aug 4, 1:10 PM MDT | Severe Thunderstorm Warning | MSO | Deer Lodge, Silver Bow | 65 min |
| Aug 4, 1:17 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead | 28 min |
| Aug 4, 1:28 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Lewis and Clark | 47 min |
| Aug 4, 1:54 PM MDT | Severe Thunderstorm Warning | MSO | Powell | 51 min |
| Aug 4, 2:15 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 60 min |
| Aug 4, 2:18 PM MDT | Severe Thunderstorm Warning | TFX | Jefferson | 27 min |
| Aug 4, 2:29 PM MDT | Severe Thunderstorm Warning | MSO | Silver Bow | 61 min |
| Aug 4, 3:12 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 63 min |
| Aug 4, 3:39 PM MDT | Severe Thunderstorm Warning | TFX | Judith Basin | 66 min |
| Aug 4, 3:49 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 26 min |
| Aug 4, 3:59 PM MDT | Severe Thunderstorm Warning | TFX | Broadwater | 31 min |
| Aug 4, 4:00 PM MDT | Severe Thunderstorm Warning | TFX | Meagher | 30 min |
| Aug 4, 4:09 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 51 min |
| Aug 4, 4:43 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 32 min |
| Aug 4, 7:26 PM MDT | Severe Thunderstorm Warning | MSO | Lake | 34 min |
| Aug 6, 4:28 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 62 min |
| Aug 12, 4:59 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 61 min |
| Aug 12, 5:14 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 61 min |
| Aug 12, 5:59 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 61 min |
| Aug 12, 6:15 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 30 min |
| Aug 12, 6:36 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 54 min |
| Aug 12, 7:31 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 89 min |
| Aug 13, 2:53 PM MDT | Severe Thunderstorm Warning | MSO | Ravalli | 52 min |
| Aug 13, 4:08 PM MDT | Severe Thunderstorm Warning | MSO | Mineral, Missoula | 52 min |
| Aug 18, 8:10 PM MDT | Severe Thunderstorm Warning | TFX | Toole | 35 min |
| Aug 19, 10:33 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 27 min |
| Sep 19, 6:19 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 56 min |
| Sep 25, 7:46 PM MDT | Severe Thunderstorm Warning | MSO | Missoula, Ravalli | 74 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Rosebud County46
- Yellowstone County39
- Big Horn County37
- Custer County37
- Powder River County35
- Valley County32
- Carter County31
- Garfield County31
- Musselshell County26
- Fergus County26
- McCone County24
- Dawson County23
- Prairie County21
- Judith Basin County20
- Golden Valley County20
- Treasure County19
- Richland County18
- Phillips County17
- Roosevelt County17
- Cascade County16
- Stillwater County15
- Fallon County15
- Carbon County14
- Wheatland County14
- Lewis and Clark County12
- Wibaux County12
- Sheridan County11
- Powell County9
- Meagher County9
- Missoula County8
- Chouteau County8
- Sweet Grass County8
- Ravalli County7
- Blaine County6
- Granite County5
- Petroleum County5
- Broadwater County4
- Jefferson County4
- Gallatin County4
- Pondera County4
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20002002
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.