Winter Storm Warnings in Montana
1,064 winter storm warnings since 1986. 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 winter storm warnings reaches back to 2005.
Winter Storm Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Winter Storm Warnings
- 1,064
- Busiest year
- 201175 winter storm warnings
- Average year
- 48over 22 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Sweet Grass County253
- Carbon County252
- Stillwater County248
- Park County235
- Missoula County224
- Lake County211
- Granite County204
- Flathead County195
- Sanders County182
- Powell County167
- Ravalli County162
- Mineral County154
- Wheatland County149
- Deer Lodge County107
- Silver Bow County107
- Big Horn County82
- Lincoln County78
- Rosebud County73
- Phillips County72
- Golden Valley County70
- Powder River County57
- Musselshell County57
- Carter County54
- Garfield County53
- Petroleum County53
- Valley County53
- McCone County52
- Treasure County51
- Wibaux County49
- Prairie County48
- Dawson County47
- Beaverhead County46
- Gallatin County44
- Madison County43
- Roosevelt County42
- Sheridan County42
- Custer County41
- Lewis and Clark County41
- Daniels County39
- Fallon County38
The latest winter storm warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 12:44 PM MDT | Winter Storm Warning | TFX | Beaverhead | 47 hr |
| Jun 26, 11:04 AM MDT | Winter Storm Warning | MSO | Deer Lodge, Granite, Missoula, Powell, Ravalli, Silver Bow | 70 hr |
| May 20, 12:55 PM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 26 hr |
| Apr 21, 11:56 PM MDT | Winter Storm Warning | TFX | Beaverhead, Blaine, Cascade, Chouteau, Fergus, Gallatin and 4 more | 3 days |
| Apr 21, 11:28 PM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass, Wheatland | 62 hr |
| Apr 15, 2:20 PM MDT | Winter Storm Warning | TFX | Beaverhead, Gallatin, Madison | 31 hr |
| Apr 14, 11:11 PM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass, Wheatland | 48 hr |
| Apr 2, 2:05 AM MDT | Winter Storm Warning | GGW | Wibaux | 38 hr |
| Apr 1, 1:45 PM MDT | Winter Storm Warning | BYZ | Big Horn, Carbon, Carter, Fallon, Park, Powder River and 4 more | 56 hr |
| Mar 31, 10:48 PM MDT | Winter Storm Warning | TFX | Beaverhead, Broadwater, Cascade, Chouteau, Gallatin, Judith Basin and 3 more | 60 hr |
| Mar 13, 2:11 PM MDT | Winter Storm Warning | BYZ | Carbon, Park, Powder River, Rosebud, Stillwater, Sweet Grass and 1 more | 39 hr |
| Mar 12, 1:35 AM MDT | Winter Storm Warning | GGW | Dawson, Garfield, McCone, Petroleum, Phillips, Prairie and 1 more | 67 hr |
Nearby
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.