Weather alerts in Montana, 1998
437 weather alerts in 1998, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in 1998. Tap one for its archive.
- Alerts
- 437
- Warnings
- 420
- Watches
- 17
- Advisories
- 0
- Busiest month
- July271 alerts
- Busiest day
- July 5, 199863 alerts
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 23, 2:00 PM MDT | Severe Thunderstorm Watch | SPC | Ravalli | 6 hr |
| Apr 23, 4:00 PM MDT | Severe Thunderstorm Watch | SPC | Flathead, Lake, Lincoln, Mineral, Missoula, Sanders | 6 hr |
| May 20, 4:30 PM MDT | Tornado Watch | SPC | Carter | 7 hr |
| May 20, 6:26 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 44 min |
| May 20, 7:24 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 61 min |
| May 21, 2:42 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 63 min |
| May 21, 3:15 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 50 min |
| May 21, 4:02 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 63 min |
| May 22, 3:42 PM MDT | Severe Thunderstorm Warning | TFX | Pondera, Teton | 58 min |
| May 22, 4:03 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Fergus | 47 min |
| May 25, 3:56 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 59 min |
| May 25, 5:51 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 64 min |
| May 26, 2:45 PM MDT | Severe Thunderstorm Watch | SPC | Beaverhead, Broadwater, Cascade, Deer Lodge, Flathead, Gallatin and 15 more | 5 hr |
| May 26, 4:05 PM MDT | Severe Thunderstorm Warning | MSO | Granite | 30 min |
| May 26, 4:28 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 32 min |
| May 26, 4:53 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 32 min |
| May 26, 5:00 PM MDT | Tornado Watch | SPC | Big Horn, Blaine, Carbon, Chouteau, Fergus, Garfield and 14 more | 6 hr |
| May 26, 5:18 PM MDT | Severe Thunderstorm Warning | MSO | Sanders | 47 min |
| May 26, 8:06 PM MDT | Severe Thunderstorm Warning | MSO | Lincoln | 64 min |
| May 27, 12:33 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 47 min |
| May 29, 7:44 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Musselshell | 61 min |
| May 30, 11:14 AM MDT | Severe Thunderstorm Warning | BYZ | Powder River, Rosebud | 61 min |
| May 30, 12:18 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 62 min |
| May 30, 12:56 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 59 min |
| Jun 1, 2:30 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 60 min |
| Jun 10, 5:19 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 61 min |
| Jun 13, 8:47 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 63 min |
| Jun 13, 9:16 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 64 min |
| Jun 18, 8:40 PM MDT | Severe Thunderstorm Warning | MSO | Granite | 50 min |
| Jun 22, 4:39 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 61 min |
| Jun 23, 11:54 AM MDT | Severe Thunderstorm Warning | TFX | Fergus | 51 min |
| Jun 23, 1:00 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 55 min |
| Jun 23, 1:52 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 63 min |
| Jun 23, 2:02 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 63 min |
| Jun 23, 3:06 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 64 min |
| Jun 23, 3:19 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 61 min |
| Jun 23, 3:25 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 65 min |
| Jun 23, 3:33 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 62 min |
| Jun 23, 4:40 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 50 min |
| Jun 23, 4:53 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 62 min |
| Jun 23, 5:27 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 63 min |
| Jun 23, 5:31 PM MDT | Flash Flood Warning | BYZ | Fallon | 4 hr |
| Jun 23, 6:23 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 62 min |
| Jun 23, 6:27 PM MDT | Severe Thunderstorm Warning | GGW | Daniels | 63 min |
| Jun 23, 6:40 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 60 min |
| Jun 23, 6:47 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 63 min |
| Jun 23, 7:35 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 60 min |
| Jun 23, 7:50 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 60 min |
| Jun 23, 8:51 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 64 min |
| Jun 23, 9:15 PM MDT | Flash Flood Warning | GGW | Roosevelt | 115 min |
| Jun 30, 2:15 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 60 min |
| Jun 30, 4:23 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Lewis and Clark | 57 min |
| Jun 30, 5:12 PM MDT | Severe Thunderstorm Warning | TFX | Meagher | 48 min |
| Jun 30, 8:26 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 59 min |
| Jun 30, 8:49 PM MDT | Tornado Warning | BYZ | Wheatland | 36 min |
| Jun 30, 9:14 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Stillwater, Sweet Grass | 61 min |
| Jun 30, 11:05 PM MDT | Severe Thunderstorm Warning | MSO | Granite, Ravalli | 65 min |
| Jul 1, 2:10 PM MDT | Severe Thunderstorm Warning | TFX | Judith Basin | 35 min |
| Jul 1, 2:59 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 31 min |
| Jul 1, 3:29 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 36 min |
| Jul 1, 3:47 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 63 min |
| Jul 1, 4:05 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 50 min |
| Jul 1, 4:20 PM MDT | Severe Thunderstorm Warning | BYZ | Park, Sweet Grass | 60 min |
| Jul 1, 5:11 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 59 min |
| Jul 1, 5:13 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater | 62 min |
| Jul 1, 5:42 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 63 min |
| Jul 1, 5:52 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 63 min |
| Jul 1, 6:10 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 60 min |
| Jul 1, 6:18 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon, Stillwater, Yellowstone | 62 min |
| Jul 1, 6:35 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 50 min |
| Jul 1, 7:14 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 61 min |
| Jul 1, 7:18 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 47 min |
| Jul 1, 7:28 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 62 min |
| Jul 1, 7:59 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 61 min |
| Jul 1, 8:11 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 64 min |
| Jul 1, 9:41 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 64 min |
| Jul 1, 11:19 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 61 min |
| Jul 2, 6:10 PM MDT | Severe Thunderstorm Warning | MSO | Ravalli | 45 min |
| Jul 2, 8:28 PM MDT | Severe Thunderstorm Warning | TFX | Broadwater, Jefferson | 47 min |
| Jul 2, 9:02 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin | 58 min |
| Jul 3, 3:55 AM MDT | Flash Flood Warning | BYZ | Wheatland | 6 hr |
| Jul 3, 4:26 AM MDT | Flash Flood Warning | BYZ | Musselshell | 2 hr |
| Jul 3, 1:00 PM MDT | Severe Thunderstorm Watch | SPC | Beaverhead, Deer Lodge, Granite, Jefferson, Lake, Lewis and Clark and 6 more | 6 hr |
| Jul 3, 3:14 PM MDT | Severe Thunderstorm Warning | MSO | Mineral, Missoula | 46 min |
| Jul 3, 3:39 PM MDT | Severe Thunderstorm Warning | MSO | Mineral, Missoula | 61 min |
| Jul 3, 4:19 PM MDT | Severe Thunderstorm Warning | MSO | Lake, Missoula, Sanders | 61 min |
| Jul 3, 4:34 PM MDT | Flash Flood Warning | MSO | Lake, Missoula, Sanders | 86 min |
| Jul 3, 4:45 PM MDT | Severe Thunderstorm Watch | SPC | Big Horn, Carbon, Powder River, Stillwater | 5 hr |
| Jul 3, 5:20 PM MDT | Severe Thunderstorm Warning | MSO | Granite, Missoula, Powell | 45 min |
| Jul 3, 6:12 PM MDT | Flash Flood Warning | MSO | Missoula, Powell | 53 min |
| Jul 3, 6:18 PM MDT | Severe Thunderstorm Warning | TFX | Pondera | 32 min |
| Jul 3, 6:21 PM MDT | Severe Thunderstorm Warning | MSO | Deer Lodge, Powell | 49 min |
| Jul 3, 6:33 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 32 min |
| Jul 3, 6:56 PM MDT | Severe Thunderstorm Warning | TFX | Jefferson | 34 min |
| Jul 3, 7:00 PM MDT | Severe Thunderstorm Watch | SPC | Broadwater, Cascade, Chouteau, Glacier, Hill, Judith Basin and 7 more | 5 hr |
| Jul 3, 7:10 PM MDT | Severe Thunderstorm Warning | TFX | Glacier | 35 min |
| Jul 3, 7:22 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Lewis and Clark | 43 min |
| Jul 3, 7:48 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 47 min |
| Jul 3, 7:57 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Teton | 48 min |
| Jul 3, 8:01 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 59 min |
| Jul 3, 8:06 PM MDT | Severe Thunderstorm Warning | TFX | Meagher | 29 min |
| Jul 3, 8:09 PM MDT | Severe Thunderstorm Warning | TFX | Fergus, Judith Basin | 61 min |
| Jul 3, 8:16 PM MDT | Severe Thunderstorm Warning | TFX | Liberty, Pondera, Toole | 64 min |
| Jul 3, 8:17 PM MDT | Tornado Warning | TFX | Cascade, Chouteau | 18 min |
| Jul 3, 8:32 PM MDT | Severe Thunderstorm Warning | MSO | Powell | 33 min |
| Jul 3, 8:36 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Chouteau, Teton | 49 min |
| Jul 3, 8:36 PM MDT | Severe Thunderstorm Warning | TFX | Liberty, Pondera, Toole | 49 min |
| Jul 3, 8:39 PM MDT | Severe Thunderstorm Warning | TFX | Fergus, Judith Basin, Meagher | 51 min |
| Jul 3, 8:59 PM MDT | Tornado Warning | TFX | Cascade, Meagher | 21 min |
| Jul 3, 9:00 PM MDT | Flash Flood Warning | TFX | Chouteau, Fergus, Judith Basin | 3 hr |
| Jul 3, 9:06 PM MDT | Severe Thunderstorm Warning | TFX | Broadwater, Jefferson | 49 min |
| Jul 3, 9:26 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Fergus, Hill, Judith Basin, Liberty | 49 min |
| Jul 3, 9:30 PM MDT | Severe Thunderstorm Warning | TFX | Broadwater, Meagher | 50 min |
| Jul 3, 10:03 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 62 min |
| Jul 3, 10:06 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 64 min |
| Jul 3, 10:07 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Fergus, Judith Basin | 58 min |
| Jul 3, 10:07 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Hill | 58 min |
| Jul 3, 10:40 PM MDT | Severe Thunderstorm Warning | TFX | Meagher | 50 min |
| Jul 3, 10:45 PM MDT | Severe Thunderstorm Watch | SPC | Blaine, Fergus, Garfield, Petroleum, Phillips, Valley | 4 hr |
| Jul 3, 10:55 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 65 min |
| Jul 3, 11:09 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 61 min |
| Jul 3, 11:10 PM MDT | Severe Thunderstorm Warning | TFX | Judith Basin | 60 min |
| Jul 3, 11:39 PM MDT | Flash Flood Warning | GGW | Garfield, Phillips | 116 min |
| Jul 4, 12:15 AM MDT | Severe Thunderstorm Warning | TFX | Judith Basin | 45 min |
| Jul 4, 1:00 AM MDT | Severe Thunderstorm Warning | GGW | Phillips | 65 min |
| Jul 4, 1:43 AM MDT | Severe Thunderstorm Warning | GGW | Valley | 62 min |
| Jul 4, 2:52 AM MDT | Severe Thunderstorm Warning | GGW | Valley | 58 min |
| Jul 4, 2:30 PM MDT | Severe Thunderstorm Watch | SPC | Beaverhead, Blaine, Broadwater, Cascade, Chouteau, Deer Lodge and 19 more | 7 hr |
| Jul 4, 2:42 PM MDT | Severe Thunderstorm Warning | TFX | Judith Basin | 63 min |
| Jul 4, 4:04 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin, Madison | 61 min |
| Jul 4, 4:27 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 63 min |
| Jul 4, 4:47 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin | 48 min |
| Jul 4, 4:54 PM MDT | Severe Thunderstorm Warning | GGW | Daniels | 61 min |
| Jul 4, 5:11 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 64 min |
| Jul 4, 5:18 PM MDT | Severe Thunderstorm Warning | BYZ | Park, Sweet Grass | 47 min |
| Jul 4, 5:25 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 60 min |
| Jul 4, 5:29 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 51 min |
| Jul 4, 5:30 PM MDT | Tornado Watch | SPC | Big Horn, Carbon, Daniels, Garfield, McCone, Musselshell and 6 more | 6 hr |
| Jul 4, 5:39 PM MDT | Flash Flood Warning | GGW | Daniels | 2 hr |
| Jul 4, 5:47 PM MDT | Severe Thunderstorm Warning | GGW | Daniels | 63 min |
| Jul 4, 5:47 PM MDT | Severe Thunderstorm Warning | TFX | Meagher | 63 min |
| Jul 4, 5:50 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 65 min |
| Jul 4, 6:00 PM MDT | Severe Thunderstorm Warning | TFX | Toole | 65 min |
| Jul 4, 6:02 PM MDT | Tornado Warning | GGW | Daniels | 48 min |
| Jul 4, 6:05 PM MDT | Severe Thunderstorm Warning | TFX | Pondera, Teton | 65 min |
| Jul 4, 6:09 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 31 min |
| Jul 4, 6:16 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 59 min |
| Jul 4, 6:32 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 63 min |
| Jul 4, 6:45 PM MDT | Tornado Warning | GGW | Roosevelt | 65 min |
| Jul 4, 7:03 PM MDT | Flash Flood Warning | GGW | Roosevelt | 3 hr |
| Jul 4, 7:05 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Pondera | 60 min |
| Jul 4, 7:06 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 64 min |
| Jul 4, 7:12 PM MDT | Severe Thunderstorm Warning | TFX | Toole | 58 min |
| Jul 4, 7:23 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 62 min |
| Jul 4, 7:34 PM MDT | Tornado Warning | GGW | Roosevelt | 61 min |
| Jul 4, 8:04 PM MDT | Flash Flood Warning | GGW | Roosevelt | 4 hr |
| Jul 4, 8:10 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Stillwater, Yellowstone | 60 min |
| Jul 4, 8:10 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 60 min |
| Jul 4, 8:15 PM MDT | Tornado Watch | SPC | Custer, Dawson, Fallon, McCone, Prairie, Richland and 1 more | 5 hr |
| Jul 4, 8:19 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 61 min |
| Jul 4, 8:20 PM MDT | Severe Thunderstorm Warning | MSO | Sanders | 60 min |
| Jul 4, 8:21 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 64 min |
| Jul 4, 8:23 PM MDT | Flash Flood Warning | GGW | Roosevelt | 6 hr |
| Jul 4, 8:28 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 62 min |
| Jul 4, 8:34 PM MDT | Tornado Warning | BYZ | Yellowstone | 31 min |
| Jul 4, 8:39 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 66 min |
| Jul 4, 8:43 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 62 min |
| Jul 4, 9:13 PM MDT | Tornado Warning | BYZ | Yellowstone | 27 min |
| Jul 4, 9:19 PM MDT | Severe Thunderstorm Warning | MSO | Flathead, Sanders | 46 min |
| Jul 4, 9:20 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 50 min |
| Jul 4, 9:22 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 58 min |
| Jul 4, 9:22 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 63 min |
| Jul 4, 9:25 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 65 min |
| Jul 4, 9:30 PM MDT | Flash Flood Warning | GGW | Richland | 5 hr |
| Jul 4, 9:31 PM MDT | Severe Thunderstorm Warning | TFX | Glacier, Toole | 64 min |
| Jul 4, 9:41 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 59 min |
| Jul 4, 9:49 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 61 min |
| Jul 4, 9:55 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 60 min |
| Jul 4, 10:00 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 65 min |
| Jul 4, 10:24 PM MDT | Flash Flood Warning | BYZ | Custer | 61 min |
| Jul 4, 10:24 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 61 min |
| Jul 4, 10:49 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 61 min |
| Jul 4, 10:56 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Treasure | 64 min |
| Jul 4, 11:11 PM MDT | Flash Flood Warning | BYZ | Custer | 64 min |
| Jul 4, 11:21 PM MDT | Flash Flood Warning | GGW | Dawson | 5 hr |
| Jul 5, 1:00 PM MDT | Severe Thunderstorm Warning | GGW | Daniels | 65 min |
| Jul 5, 2:01 PM MDT | Severe Thunderstorm Warning | GGW | Daniels | 64 min |
| Jul 5, 3:00 PM MDT | Severe Thunderstorm Watch | SPC | Broadwater, Cascade, Fergus, Gallatin, Golden Valley, Jefferson and 13 more | 6 hr |
| Jul 5, 3:45 PM MDT | Severe Thunderstorm Warning | TFX | Teton | 60 min |
| Jul 5, 3:47 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 63 min |
| Jul 5, 4:15 PM MDT | Severe Thunderstorm Warning | TFX | Toole | 45 min |
| Jul 5, 4:17 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 63 min |
| Jul 5, 4:45 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River, Rosebud | 65 min |
| Jul 5, 4:48 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 47 min |
| Jul 5, 4:50 PM MDT | Severe Thunderstorm Warning | TFX | Teton | 60 min |
| Jul 5, 4:53 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 62 min |
| Jul 5, 5:00 PM MDT | Severe Thunderstorm Warning | TFX | Liberty, Toole | 65 min |
| Jul 5, 5:01 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 64 min |
| Jul 5, 5:05 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 65 min |
| Jul 5, 5:15 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 65 min |
| Jul 5, 5:26 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 64 min |
| Jul 5, 5:37 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 63 min |
| Jul 5, 5:49 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 66 min |
| Jul 5, 5:49 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 66 min |
| Jul 5, 5:55 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater | 65 min |
| Jul 5, 6:00 PM MDT | Severe Thunderstorm Warning | TFX | Hill | 60 min |
| Jul 5, 6:05 PM MDT | Severe Thunderstorm Warning | TFX | Liberty | 25 min |
| Jul 5, 6:19 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 61 min |
| Jul 5, 6:30 PM MDT | Flash Flood Warning | GGW | Roosevelt | 4 hr |
| Jul 5, 6:30 PM MDT | Flash Flood Warning | GGW | Roosevelt | 4 hr |
| Jul 5, 6:35 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon, Yellowstone | 60 min |
| Jul 5, 6:40 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 65 min |
| Jul 5, 6:43 PM MDT | Severe Thunderstorm Warning | GGW | Daniels | 47 min |
| Jul 5, 7:02 PM MDT | Severe Thunderstorm Warning | TFX | Hill | 63 min |
| Jul 5, 7:16 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 64 min |
| Jul 5, 7:19 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 61 min |
| Jul 5, 7:21 PM MDT | Severe Thunderstorm Warning | GGW | Daniels | 64 min |
| Jul 5, 7:26 PM MDT | Flash Flood Warning | GGW | Daniels | 4 hr |
| Jul 5, 7:30 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 65 min |
| Jul 5, 7:36 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 64 min |
| Jul 5, 7:38 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 62 min |
| Jul 5, 7:50 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Treasure, Yellowstone | 65 min |
| Jul 5, 8:00 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 65 min |
| Jul 5, 8:15 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 65 min |
| Jul 5, 8:29 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 61 min |
| Jul 5, 8:33 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 62 min |
| Jul 5, 8:55 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud, Treasure | 60 min |
| Jul 5, 9:09 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 66 min |
| Jul 5, 9:29 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 46 min |
| Jul 5, 9:30 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 65 min |
| Jul 5, 9:52 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Rosebud | 63 min |
| Jul 5, 10:04 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 56 min |
| Jul 5, 10:23 PM MDT | Flash Flood Warning | GGW | Roosevelt | 97 min |
| Jul 5, 10:57 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Fergus | 63 min |
| Jul 6, 10:58 AM MDT | Severe Thunderstorm Warning | GGW | Valley | 62 min |
| Jul 6, 11:23 AM MDT | Severe Thunderstorm Warning | GGW | McCone | 62 min |
| Jul 6, 1:48 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 67 min |
| Jul 6, 1:56 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 64 min |
| Jul 6, 2:50 PM MDT | Severe Thunderstorm Warning | GGW | Daniels | 65 min |
| Jul 6, 3:22 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 63 min |
| Jul 6, 3:31 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 64 min |
| Jul 6, 3:35 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 65 min |
| Jul 6, 3:56 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 49 min |
| Jul 6, 4:02 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 63 min |
| Jul 6, 4:10 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 65 min |
| Jul 6, 4:40 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 60 min |
| Jul 6, 4:44 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 61 min |
| Jul 6, 4:56 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 49 min |
| Jul 6, 5:16 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Fallon | 64 min |
| Jul 6, 6:22 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 23 min |
| Jul 7, 7:12 PM MDT | Flash Flood Warning | BYZ | Carbon | 4 hr |
| Jul 8, 1:22 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 63 min |
| Jul 8, 2:17 PM MDT | Severe Thunderstorm Warning | TFX | Glacier, Pondera | 43 min |
| Jul 8, 2:32 PM MDT | Flash Flood Warning | GGW | Roosevelt | 2 hr |
| Jul 8, 2:41 PM MDT | Severe Thunderstorm Warning | TFX | Teton | 59 min |
| Jul 8, 3:33 PM MDT | Severe Thunderstorm Warning | GGW | Daniels | 62 min |
| Jul 8, 3:42 PM MDT | Severe Thunderstorm Warning | TFX | Teton | 58 min |
| Jul 9, 12:10 AM MDT | Severe Thunderstorm Warning | GGW | Valley | 60 min |
| Jul 9, 6:30 AM MDT | Severe Thunderstorm Warning | MSO | Lincoln, Sanders | 60 min |
| Jul 9, 3:35 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 55 min |
| Jul 9, 6:10 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 60 min |
| Jul 9, 7:25 PM MDT | Flash Flood Warning | GGW | Wibaux | 115 min |
| Jul 10, 12:49 AM MDT | Severe Thunderstorm Warning | MSO | Lincoln | 66 min |
| Jul 10, 4:30 PM MDT | Severe Thunderstorm Watch | SPC | Beaverhead, Broadwater, Deer Lodge, Flathead, Gallatin, Glacier and 12 more | 6 hr |
| Jul 10, 4:31 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 64 min |
| Jul 10, 4:54 PM MDT | Severe Thunderstorm Warning | TFX | Pondera, Teton | 61 min |
| Jul 10, 5:16 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 64 min |
| Jul 10, 5:19 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 61 min |
| Jul 10, 5:44 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 31 min |
| Jul 10, 5:49 PM MDT | Severe Thunderstorm Warning | MSO | Granite, Missoula | 31 min |
| Jul 10, 6:02 PM MDT | Severe Thunderstorm Warning | MSO | Lake, Missoula, Sanders | 33 min |
| Jul 10, 6:16 PM MDT | Severe Thunderstorm Warning | MSO | Granite, Missoula | 34 min |
| Jul 10, 6:25 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 35 min |
| Jul 10, 6:47 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 63 min |
| Jul 10, 6:54 PM MDT | Severe Thunderstorm Warning | MSO | Lake, Missoula | 61 min |
| Jul 10, 7:29 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 36 min |
| Jul 11, 1:09 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 46 min |
| Jul 11, 2:29 PM MDT | Severe Thunderstorm Warning | TFX | Madison | 61 min |
| Jul 11, 3:05 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 65 min |
| Jul 11, 3:30 PM MDT | Severe Thunderstorm Watch | SPC | Big Horn, Carbon, Carter, Custer, Fallon, Golden Valley and 14 more | 6 hr |
| Jul 11, 3:30 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin | 65 min |
| Jul 11, 3:45 PM MDT | Severe Thunderstorm Warning | BYZ | Park | 65 min |
| Jul 11, 4:03 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 62 min |
| Jul 11, 5:06 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 64 min |
| Jul 11, 5:43 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 47 min |
| Jul 11, 6:03 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 47 min |
| Jul 11, 6:37 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 63 min |
| Jul 11, 6:42 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 63 min |
| Jul 11, 7:45 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 65 min |
| Jul 11, 7:55 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 60 min |
| Jul 11, 8:23 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 62 min |
| Jul 11, 9:02 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 63 min |
| Jul 11, 9:07 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 93 min |
| Jul 13, 7:37 PM MDT | Severe Thunderstorm Warning | TFX | Fergus | 48 min |
| Jul 13, 7:39 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 61 min |
| Jul 13, 7:47 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 63 min |
| Jul 13, 8:18 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 47 min |
| Jul 13, 11:31 PM MDT | Severe Thunderstorm Warning | GGW | Wibaux | 64 min |
| Jul 14, 12:05 AM MDT | Severe Thunderstorm Warning | BYZ | Carter, Fallon | 45 min |
| Jul 14, 12:15 AM MDT | Severe Thunderstorm Warning | GGW | Richland | 60 min |
| Jul 14, 12:22 AM MDT | Tornado Warning | BYZ | Carter, Fallon | 48 min |
| Jul 18, 5:04 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 31 min |
| Jul 18, 6:47 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 48 min |
| Jul 18, 7:21 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 64 min |
| Jul 18, 7:32 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 48 min |
| Jul 19, 6:51 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Powder River | 59 min |
| Jul 22, 7:38 PM MDT | Severe Thunderstorm Warning | MSO | Mineral | 47 min |
| Jul 22, 7:54 PM MDT | Severe Thunderstorm Warning | MSO | Sanders | 46 min |
| Jul 27, 4:47 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 63 min |
| Jul 27, 5:23 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Musselshell | 62 min |
| Jul 27, 5:40 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 65 min |
| Jul 27, 5:59 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 61 min |
| Jul 27, 10:39 PM MDT | Flash Flood Warning | TFX | Teton | 3 hr |
| Jul 28, 1:52 PM MDT | Severe Thunderstorm Warning | MSO | Lake, Missoula | 63 min |
| Jul 28, 2:31 PM MDT | Severe Thunderstorm Warning | MSO | Lincoln | 59 min |
| Jul 28, 3:26 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 59 min |
| Jul 30, 2:09 PM MDT | Severe Thunderstorm Warning | MSO | Mineral | 46 min |
| Jul 31, 3:37 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 63 min |
| Jul 31, 4:00 PM MDT | Severe Thunderstorm Watch | SPC | Big Horn, Powder River, Yellowstone | 6 hr |
| Jul 31, 4:10 PM MDT | Severe Thunderstorm Warning | BYZ | Park | 65 min |
| Jul 31, 4:23 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 62 min |
| Jul 31, 4:37 PM MDT | Severe Thunderstorm Warning | BYZ | Sweet Grass | 63 min |
| Jul 31, 5:33 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 62 min |
| Jul 31, 5:53 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Musselshell | 62 min |
| Jul 31, 6:00 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Rosebud | 65 min |
| Jul 31, 6:25 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 60 min |
| Jul 31, 7:05 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River, Rosebud | 60 min |
| Jul 31, 8:00 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Powder River | 60 min |
| Aug 1, 2:33 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 47 min |
| Aug 1, 5:00 PM MDT | Severe Thunderstorm Watch | SPC | Daniels, Dawson, Garfield, McCone, Richland, Roosevelt and 2 more | 6 hr |
| Aug 1, 5:18 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 62 min |
| Aug 1, 5:45 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 60 min |
| Aug 1, 6:14 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 61 min |
| Aug 1, 6:14 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 31 min |
| Aug 1, 6:35 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 65 min |
| Aug 1, 7:41 PM MDT | Severe Thunderstorm Warning | GGW | Daniels | 64 min |
| Aug 1, 7:57 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 63 min |
| Aug 7, 12:15 AM MDT | Severe Thunderstorm Warning | MSO | Missoula, Ravalli | 60 min |
| Aug 7, 2:33 PM MDT | Severe Thunderstorm Warning | MSO | Deer Lodge | 47 min |
| Aug 7, 2:42 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley | 63 min |
| Aug 7, 3:29 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 61 min |
| Aug 7, 3:43 PM MDT | Severe Thunderstorm Warning | MSO | Powell | 47 min |
| Aug 7, 3:54 PM MDT | Severe Thunderstorm Warning | TFX | Broadwater, Jefferson, Lewis and Clark | 46 min |
| Aug 7, 4:10 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Teton | 35 min |
| Aug 7, 4:19 PM MDT | Severe Thunderstorm Warning | TFX | Pondera | 51 min |
| Aug 7, 4:31 PM MDT | Severe Thunderstorm Warning | MSO | Powell | 34 min |
| Aug 7, 4:33 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud, Treasure, Yellowstone | 62 min |
| Aug 7, 4:45 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Chouteau, Teton | 45 min |
| Aug 7, 4:51 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 49 min |
| Aug 7, 4:57 PM MDT | Severe Thunderstorm Warning | TFX | Pondera, Toole | 48 min |
| Aug 7, 5:19 PM MDT | Severe Thunderstorm Warning | TFX | Liberty, Toole | 36 min |
| Aug 7, 5:25 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 50 min |
| Aug 7, 5:39 PM MDT | Severe Thunderstorm Warning | TFX | Broadwater, Meagher | 51 min |
| Aug 7, 5:39 PM MDT | Severe Thunderstorm Warning | TFX | Jefferson | 51 min |
| Aug 7, 5:48 PM MDT | Severe Thunderstorm Warning | TFX | Liberty | 42 min |
| Aug 9, 5:06 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 59 min |
| Aug 10, 1:30 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 65 min |
| Aug 10, 1:42 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 63 min |
| Aug 10, 2:02 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 63 min |
| Aug 10, 2:07 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 63 min |
| Aug 10, 3:04 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 61 min |
| Aug 10, 3:07 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Richland | 63 min |
| Aug 10, 3:11 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 64 min |
| Aug 10, 3:43 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 62 min |
| Aug 10, 3:46 PM MDT | Severe Thunderstorm Warning | GGW | Daniels | 64 min |
| Aug 10, 5:57 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 63 min |
| Aug 13, 6:40 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 60 min |
| Aug 14, 3:09 AM MDT | Severe Thunderstorm Warning | GGW | Richland, Roosevelt | 61 min |
| Aug 14, 5:13 PM MDT | Tornado Warning | TFX | Judith Basin | 47 min |
| Aug 14, 5:29 PM MDT | Severe Thunderstorm Warning | BYZ | Wheatland | 61 min |
| Aug 14, 7:29 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell | 66 min |
| Aug 14, 11:44 PM MDT | Severe Thunderstorm Warning | GGW | McCone | 61 min |
| Aug 15, 12:49 AM MDT | Severe Thunderstorm Warning | GGW | McCone | 66 min |
| Aug 15, 3:42 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater | 33 min |
| Aug 15, 4:12 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 63 min |
| Aug 16, 5:57 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Fergus | 68 min |
| Aug 16, 7:00 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 65 min |
| Aug 16, 8:21 PM MDT | Severe Thunderstorm Warning | TFX | Blaine | 49 min |
| Aug 17, 8:41 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 64 min |
| Aug 17, 10:12 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Valley | 63 min |
| Aug 20, 3:57 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 63 min |
| Aug 20, 4:16 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Fallon | 64 min |
| Aug 20, 5:32 PM MDT | Severe Thunderstorm Warning | MSO | Mineral | 63 min |
| Aug 20, 6:08 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 32 min |
| Aug 20, 6:25 PM MDT | Severe Thunderstorm Warning | MSO | Sanders | 60 min |
| Aug 20, 7:14 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 66 min |
| Aug 20, 7:58 PM MDT | Flash Flood Warning | BYZ | Big Horn | 6 hr |
| Aug 20, 8:21 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 64 min |
| Aug 20, 8:48 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 62 min |
| Aug 20, 10:19 PM MDT | Severe Thunderstorm Warning | MSO | Sanders | 61 min |
| Aug 21, 4:23 AM MDT | Severe Thunderstorm Warning | TFX | Blaine | 47 min |
| Aug 21, 6:15 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 60 min |
| Aug 21, 7:32 PM MDT | Severe Thunderstorm Warning | GGW | Sheridan | 58 min |
| Aug 21, 7:40 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau | 30 min |
| Aug 22, 1:09 AM MDT | Severe Thunderstorm Warning | GGW | McCone, Valley | 61 min |
| Aug 22, 1:37 AM MDT | Severe Thunderstorm Warning | MSO | Lake, Missoula | 58 min |
| Aug 22, 3:33 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn | 62 min |
| Aug 22, 4:03 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 62 min |
| Aug 22, 4:35 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Wibaux | 65 min |
| Aug 22, 5:05 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River, Rosebud | 60 min |
| Aug 22, 5:11 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 64 min |
| Aug 22, 5:39 PM MDT | Severe Thunderstorm Warning | BYZ | Powder River | 46 min |
| Aug 22, 6:01 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 64 min |
| Aug 22, 6:39 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 61 min |
| Aug 22, 6:46 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 64 min |
| Aug 22, 6:58 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 62 min |
| Aug 22, 7:07 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 33 min |
| Aug 23, 4:17 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 58 min |
| Aug 23, 5:01 PM MDT | Severe Thunderstorm Warning | TFX | Cascade | 59 min |
| Aug 23, 5:08 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Fergus, Judith Basin | 62 min |
| Aug 23, 8:19 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell, Yellowstone | 61 min |
| Aug 23, 9:01 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud, Treasure | 64 min |
| Aug 23, 9:21 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell, Yellowstone | 64 min |
| Aug 23, 9:41 PM MDT | Tornado Warning | BYZ | Treasure, Yellowstone | 34 min |
| Aug 23, 10:00 PM MDT | Tornado Warning | BYZ | Treasure | 35 min |
| Aug 23, 10:20 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 65 min |
| Aug 23, 10:30 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 60 min |
| Aug 23, 10:56 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure | 64 min |
| Aug 23, 10:58 PM MDT | Tornado Warning | BYZ | Rosebud | 32 min |
| Aug 23, 11:05 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 60 min |
| Aug 23, 11:55 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 65 min |
| Aug 24, 12:07 AM MDT | Severe Thunderstorm Warning | BYZ | Carter, Custer | 63 min |
| Aug 26, 4:44 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 61 min |
| Aug 26, 6:58 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 62 min |
| Aug 26, 7:01 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 64 min |
| Aug 26, 8:05 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 50 min |
| Sep 9, 2:03 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Chouteau, Judith Basin, Meagher | 62 min |
| Sep 9, 2:03 PM MDT | Severe Thunderstorm Warning | TFX | Teton | 62 min |
| Sep 9, 3:04 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Hill | 46 min |
| Sep 9, 3:50 PM MDT | Severe Thunderstorm Warning | TFX | Blaine, Hill | 60 min |
| Sep 9, 3:50 PM MDT | Severe Thunderstorm Warning | TFX | Liberty | 60 min |
| Sep 10, 4:05 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Powder River, Rosebud | 60 min |
| Sep 18, 2:32 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin | 33 min |
| Sep 18, 2:49 PM MDT | Severe Thunderstorm Warning | TFX | Judith Basin | 51 min |
| Sep 18, 3:35 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Teton | 50 min |
| Sep 18, 4:37 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Liberty | 38 min |
| Sep 18, 8:00 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 65 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 382 |
| Tornado Warning | 13 |
| Severe Thunderstorm Watch | 13 |
| Tornado Watch | 4 |
| Flooding | |
| Flash Flood Warning | 25 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Big Horn County30
- Yellowstone County30
- Roosevelt County30
- Valley County25
- Missoula County24
- Chouteau County23
- Fergus County23
- Custer County21
- Powder River County21
- Carter County20
- Rosebud County20
- Cascade County19
- Judith Basin County18
- Teton County17
- Daniels County17
- Richland County17
- Musselshell County15
- Sanders County14
- Treasure County14
- Meagher County14
- Pondera County13
- Lewis and Clark County13
- Fallon County13
- Garfield County12
- Liberty County12
- Phillips County12
- Toole County12
- Wheatland County12
- McCone County12
- Powell County11
- Blaine County11
- Stillwater County11
- Dawson County11
- Lake County10
- Broadwater County10
- Jefferson County10
- Golden Valley County10
- Gallatin County9
- Granite County9
- Hill County9
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive19971999
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. Rebuilt daily.