Alert archive / Montana / Severe Thunderstorm Warnings / 2015
Severe Thunderstorm Warnings in Montana, August 2015
18 severe thunderstorm warnings in August 2015. 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 2015. Tap one for its archive.
- Severe Thunderstorm Warnings
- 18
- Busiest day
- August 11, 20155 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 5, 4:54 PM MDT | Severe Thunderstorm Warning | BYZ | Stillwater, Sweet Grass | 36 min |
| Aug 5, 6:08 PM MDT | Severe Thunderstorm Warning | BYZ | Yellowstone | 67 min |
| Aug 5, 6:58 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Yellowstone | 62 min |
| Aug 10, 5:00 PM MDT | Severe Thunderstorm Warning | MSO | Granite, Ravalli | 60 min |
| Aug 10, 5:22 PM MDT | Severe Thunderstorm Warning | MSO | Mineral, Missoula, Ravalli | 53 min |
| Aug 10, 6:04 PM MDT | Severe Thunderstorm Warning | MSO | Granite, Missoula, Ravalli | 26 min |
| Aug 10, 6:23 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 52 min |
| Aug 10, 6:40 PM MDT | Severe Thunderstorm Warning | MSO | Mineral, Missoula, Sanders | 50 min |
| Aug 10, 6:44 PM MDT | Severe Thunderstorm Warning | MSO | Granite, Missoula, Powell | 61 min |
| Aug 10, 7:18 PM MDT | Severe Thunderstorm Warning | MSO | Lake, Missoula | 42 min |
| Aug 11, 7:20 PM MDT | Severe Thunderstorm Warning | MSO | Mineral, Sanders | 40 min |
| Aug 12, 5:43 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 32 min |
| Aug 12, 5:51 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone, Prairie | 54 min |
| Aug 14, 3:38 PM MDT | Severe Thunderstorm Warning | MSO | Missoula, Ravalli | 37 min |
| Aug 14, 3:47 PM MDT | Severe Thunderstorm Warning | MSO | Mineral, Missoula, Sanders | 28 min |
| Aug 17, 2:50 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Powder River | 55 min |
| Aug 30, 7:23 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, Valley | 37 min |
| Aug 30, 7:55 PM MDT | Severe Thunderstorm Warning | GGW | Garfield, McCone, Roosevelt, Valley | 50 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Missoula County8
- Ravalli County4
- Mineral County4
- Granite County3
- Sanders County3
- Yellowstone County2
- McCone County2
- Garfield County2
- Valley County2
- Stillwater County1
- Sweet Grass County1
- Big Horn County1
- Powell County1
- Lake County1
- Custer County1
- Dawson County1
- Prairie County1
- Carter County1
- Powder River County1
- Roosevelt County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20142016
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.