Weather alerts in Montana
53,194 weather alerts since 1986, 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 since 1986. Tap one for its archive.
- Alerts
- 53,194
- Warnings
- 18,017
- Watches
- 3,647
- Advisories
- 8,511
- Busiest year
- 20193,360 alerts
- Average year
- 1,297over 41 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 product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Valley County5,060
- McCone County4,429
- Phillips County4,395
- Garfield County4,300
- Missoula County3,475
- Stillwater County3,396
- Carter County3,323
- Petroleum County3,212
- Sweet Grass County3,201
- Big Horn County3,139
- Rosebud County3,137
- Roosevelt County3,108
- Dawson County3,063
- Richland County3,028
- Powder River County2,956
- Powell County2,899
- Granite County2,887
- Flathead County2,866
- Lake County2,842
- Custer County2,825
- Fergus County2,803
- Yellowstone County2,751
- Prairie County2,742
- Park County2,742
- Ravalli County2,676
- Cascade County2,628
- Wibaux County2,596
- Sheridan County2,557
- Fallon County2,538
- Carbon County2,486
- Sanders County2,463
- Wheatland County2,449
- Golden Valley County2,448
- Daniels County2,433
- Judith Basin County2,373
- Lewis and Clark County2,371
- Chouteau County2,341
- Musselshell County2,338
- Treasure County2,272
- Silver Bow County2,158
16 more counties
- Deer Lodge County2,067
- Blaine County2,063
- Gallatin County1,981
- Madison County1,903
- Meagher County1,867
- Teton County1,781
- Broadwater County1,763
- Mineral County1,751
- Jefferson County1,716
- Pondera County1,683
- Hill County1,676
- Glacier County1,565
- Beaverhead County1,489
- Toole County1,429
- Liberty County1,364
- Lincoln County1,303
The latest warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 18, 7:40 PM MDT | Flash Flood Warning | BYZ | Golden Valley, Sweet Grass | 2 hr |
| Sep 18, 6:02 PM MDT | Flash Flood Warning | BYZ | Golden Valley, Wheatland | 4 hr |
| Sep 14, 9:31 AM MDT | High Wind Warning | GGW | Daniels, Dawson, Prairie, Richland, Roosevelt, Sheridan and 1 more | 12 hr |
| Sep 14, 8:24 AM MDT | High Wind Warning | BYZ | Carter, Custer, Fallon | 13 hr |
| Sep 13, 11:52 PM MDT | High Wind Warning | TFX | Fergus, Judith Basin | 18 hr |
| Sep 13, 9:28 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Judith Basin | 47 min |
| Sep 13, 9:02 PM MDT | Severe Thunderstorm Warning | TFX | Chouteau, Fergus | 43 min |
| Sep 12, 10:43 PM MDT | High Wind Warning | TFX | Madison | 19 hr |
| Sep 12, 9:15 AM MDT | Red Flag Warning | MSO | Beaverhead, Jefferson, Madison, Silver Bow | 36 hr |
| Sep 9, 12:56 PM MDT | Red Flag Warning | GGW | Dawson, Garfield, McCone, Petroleum, Prairie, Richland and 1 more | 31 hr |
| Sep 9, 10:21 AM MDT | Red Flag Warning | BYZ | Carter, Fallon, Gallatin, Golden Valley, Madison, Musselshell and 3 more | 33 hr |
| Sep 9, 9:59 AM MDT | Red Flag Warning | MSO | Beaverhead, Jefferson, Madison, Silver Bow | 35 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.