Alert archive / Montana / Severe Thunderstorm Warnings / 2023
Severe Thunderstorm Warnings in Montana, August 2023
46 severe thunderstorm warnings in August 2023. 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 August 2023. Tap one for its archive.
- Severe Thunderstorm Warnings
- 46
- Busiest day
- August 30, 202311 severe thunderstorm warnings
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Jul 31, 8:04 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Powder River | 41 min |
| Jul 31, 9:38 PM MDT | Severe Thunderstorm Warning | BYZ | Carter | 22 min |
| Aug 1, 2:57 AM MDT | Severe Thunderstorm Warning | GGW | Phillips | 63 min |
| Aug 1, 3:53 AM MDT | Severe Thunderstorm Warning | GGW | Valley | 67 min |
| Aug 1, 4:59 AM MDT | Severe Thunderstorm Warning | GGW | Daniels, Roosevelt, Valley | 61 min |
| Aug 1, 4:23 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Richland, Roosevelt | 56 min |
| Aug 6, 5:59 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater | 31 min |
| Aug 6, 6:28 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater | 32 min |
| Aug 18, 2:47 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead, Madison | 43 min |
| Aug 18, 3:09 PM MDT | Severe Thunderstorm Warning | TFX | Broadwater, Jefferson, Lewis and Clark, Meagher | 51 min |
| Aug 18, 3:50 PM MDT | Severe Thunderstorm Warning | TFX | Meagher | 40 min |
| Aug 18, 4:47 PM MDT | Severe Thunderstorm Warning | TFX | Fergus, Judith Basin | 43 min |
| Aug 18, 6:13 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 36 min |
| Aug 18, 8:02 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone, Valley | 58 min |
| Aug 21, 11:08 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure, Yellowstone | 37 min |
| Aug 21, 11:38 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 52 min |
| Aug 22, 12:03 AM MDT | Severe Thunderstorm Warning | GGW | Garfield | 57 min |
| Aug 22, 4:22 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 23 min |
| Aug 22, 4:42 PM MDT | Severe Thunderstorm Warning | MSO | Flathead | 48 min |
| Aug 22, 5:02 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 28 min |
| Aug 22, 5:27 PM MDT | Severe Thunderstorm Warning | TFX | Hill | 33 min |
| Aug 22, 6:29 PM MDT | Severe Thunderstorm Warning | TFX | Glacier, Pondera | 31 min |
| Aug 22, 6:56 PM MDT | Severe Thunderstorm Warning | TFX | Glacier, Pondera | 34 min |
| Aug 22, 7:26 PM MDT | Severe Thunderstorm Warning | TFX | Glacier, Toole | 34 min |
| Aug 22, 8:12 PM MDT | Severe Thunderstorm Warning | TFX | Toole | 33 min |
| Aug 22, 11:40 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Richland, Wibaux | 35 min |
| Aug 25, 7:48 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead | 27 min |
| Aug 29, 3:54 PM MDT | Severe Thunderstorm Warning | MSO | Mineral, Sanders | 36 min |
| Aug 29, 3:59 PM MDT | Severe Thunderstorm Warning | MSO | Mineral, Missoula | 46 min |
| Aug 29, 5:10 PM MDT | Severe Thunderstorm Warning | MSO | Mineral, Missoula, Ravalli | 35 min |
| Aug 29, 5:28 PM MDT | Severe Thunderstorm Warning | MSO | Mineral, Missoula | 32 min |
| Aug 29, 6:15 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Lewis and Clark, Teton | 45 min |
| Aug 29, 6:27 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead, Madison | 33 min |
| Aug 29, 6:52 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Chouteau, Teton | 38 min |
| Aug 29, 7:03 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead, Madison | 42 min |
| Aug 29, 7:32 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Chouteau, Liberty, Pondera, Teton | 43 min |
| Aug 29, 8:08 PM MDT | Severe Thunderstorm Warning | TFX | Lewis and Clark | 37 min |
| Aug 29, 8:18 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead, Broadwater, Gallatin, Jefferson, Madison | 42 min |
| Aug 29, 8:37 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Lewis and Clark | 38 min |
| Aug 29, 9:01 PM MDT | Severe Thunderstorm Warning | TFX | Gallatin | 29 min |
| Aug 29, 9:24 PM MDT | Severe Thunderstorm Warning | TFX | Broadwater, Gallatin, Meagher | 36 min |
| Aug 30, 12:37 AM MDT | Severe Thunderstorm Warning | TFX | Blaine, Hill | 38 min |
| Aug 30, 6:33 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Garfield, McCone, Prairie, Richland | 57 min |
| Aug 30, 6:40 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Powder River | 50 min |
| Aug 30, 8:52 PM MDT | Severe Thunderstorm Warning | GGW | Richland, Roosevelt, Sheridan, Wibaux | 53 min |
| Aug 30, 9:44 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt, Sheridan | 33 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Beaverhead County5
- Roosevelt County4
- Richland County4
- Madison County4
- Lewis and Clark County4
- Missoula County4
- Mineral County4
- Cascade County4
- Valley County3
- Dawson County3
- Broadwater County3
- Meagher County3
- Garfield County3
- Glacier County3
- Pondera County3
- Teton County3
- Gallatin County3
- Carter County2
- Powder River County2
- Stillwater County2
- Jefferson County2
- Yellowstone County2
- McCone County2
- Flathead County2
- Hill County2
- Toole County2
- Wibaux County2
- Chouteau County2
- Sheridan County2
- Phillips County1
- Daniels County1
- Fergus County1
- Judith Basin County1
- Treasure County1
- Rosebud County1
- Sanders County1
- Ravalli County1
- Liberty County1
- Blaine County1
- Prairie County1
1 more counties
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.