Alert archive / Montana / Severe Thunderstorm Warnings / 2018
Severe Thunderstorm Warnings in Montana, August 2018
15 severe thunderstorm warnings in August 2018. 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 2018. Tap one for its archive.
- Severe Thunderstorm Warnings
- 15
- Busiest day
- August 4, 20186 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 |
|---|---|---|---|---|
| Aug 2, 2:32 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon, Stillwater, Yellowstone | 28 min |
| Aug 2, 2:57 PM MDT | Severe Thunderstorm Warning | BYZ | Carbon, Stillwater, Yellowstone | 48 min |
| Aug 2, 5:58 PM MDT | Severe Thunderstorm Warning | BYZ | Park | 50 min |
| Aug 3, 1:40 PM MDT | Severe Thunderstorm Warning | TFX | Cascade, Chouteau | 35 min |
| Aug 3, 4:51 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Carbon, Yellowstone | 39 min |
| Aug 3, 5:27 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Custer, Powder River, Rosebud, Treasure | 63 min |
| Aug 3, 6:28 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Carter, Custer, Fallon, Powder River, Rosebud and 1 more | 62 min |
| Aug 3, 6:41 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Powder River | 49 min |
| Aug 3, 7:02 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 28 min |
| Aug 3, 7:23 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone, Prairie, Wibaux | 52 min |
| Aug 3, 7:28 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Custer, Fallon, Powder River | 92 min |
| Aug 3, 9:00 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Fallon | 30 min |
| Aug 5, 6:35 PM MDT | Severe Thunderstorm Warning | GGW | Richland, Roosevelt | 40 min |
| Aug 20, 3:53 PM MDT | Severe Thunderstorm Warning | TFX | Beaverhead | 37 min |
| Aug 23, 6:14 AM MDT | Severe Thunderstorm Warning | GGW | Dawson, Prairie, Wibaux | 61 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Big Horn County4
- Custer County4
- Powder River County4
- Carbon County3
- Yellowstone County3
- Carter County3
- Fallon County3
- Stillwater County2
- Rosebud County2
- Treasure County2
- Dawson County2
- Prairie County2
- Wibaux County2
- Park County1
- Cascade County1
- Chouteau County1
- McCone County1
- Richland County1
- Roosevelt County1
- Beaverhead County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.