Severe Thunderstorm Watches in Montana
634 severe thunderstorm watches 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 severe thunderstorm watches reaches back to 1997.
Severe Thunderstorm Watches by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Severe Thunderstorm Watches
- 634
- Busiest year
- 200140 severe thunderstorm watches
- Average year
- 21over 30 years on file
Over time
By year
Watches are counted from 1997, when the Storm Prediction Center archive begins.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Carter County254
- Custer County246
- Powder River County244
- Fallon County242
- Wibaux County237
- Dawson County233
- Prairie County231
- Rosebud County230
- Richland County227
- Garfield County212
- McCone County211
- Treasure County200
- Roosevelt County192
- Big Horn County191
- Fergus County185
- Petroleum County185
- Musselshell County182
- Valley County182
- Sheridan County173
- Judith Basin County168
- Yellowstone County168
- Golden Valley County164
- Daniels County157
- Phillips County157
- Wheatland County157
- Meagher County138
- Chouteau County135
- Blaine County134
- Cascade County133
- Stillwater County132
- Carbon County131
- Sweet Grass County130
- Broadwater County123
- Hill County117
- Park County112
- Jefferson County106
- Lewis and Clark County105
- Gallatin County103
- Liberty County91
- Madison County88
The latest severe thunderstorm watches
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 5:53 PM MDT | Severe Thunderstorm Watch | SPC | Blaine, Broadwater, Cascade, Chouteau, Fergus, Hill and 4 more | 7 hr |
| Sep 2, 1:35 PM MDT | Severe Thunderstorm Watch | SPC | Blaine, Broadwater, Cascade, Chouteau, Fergus, Glacier and 10 more | 5 hr |
| Aug 30, 1:28 PM MDT | Severe Thunderstorm Watch | SPC | Carter, Custer, Dawson, Fallon, McCone, Powder River and 5 more | 5 hr |
| Aug 27, 4:52 PM MDT | Severe Thunderstorm Watch | SPC | Beaverhead, Blaine, Broadwater, Cascade, Chouteau, Fergus and 17 more | 5 hr |
| Aug 23, 3:48 PM MDT | Severe Thunderstorm Watch | SPC | Big Horn, Carter, Custer, Daniels, Dawson, Fallon and 15 more | 6 hr |
| Aug 23, 1:59 PM MDT | Severe Thunderstorm Watch | SPC | Blaine, Broadwater, Carbon, Cascade, Chouteau, Fergus and 14 more | 5 hr |
| Aug 18, 2:31 PM MDT | Severe Thunderstorm Watch | SPC | Big Horn, Carbon, Carter, Custer, Fallon, Musselshell and 4 more | 5 hr |
| Jul 25, 2:53 PM MDT | Severe Thunderstorm Watch | SPC | Big Horn, Broadwater, Carbon, Cascade, Chouteau, Fergus and 19 more | 7 hr |
| Jul 18, 3:39 PM MDT | Severe Thunderstorm Watch | SPC | Blaine, Broadwater, Cascade, Chouteau, Fergus, Gallatin and 12 more | 6 hr |
| Jul 14, 5:37 PM MDT | Severe Thunderstorm Watch | SPC | Blaine, Broadwater, Cascade, Chouteau, Fergus, Garfield and 14 more | 7 hr |
| Jul 2, 4:06 PM MDT | Severe Thunderstorm Watch | SPC | Carter, Daniels, Dawson, Fallon, Powder River, Richland and 3 more | 10 hr |
| Jun 27, 4:28 PM MDT | Severe Thunderstorm Watch | SPC | Daniels, Dawson, Garfield, McCone, Prairie, Richland and 4 more | 5 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. Warning verification from the Mesonet's Cow. Rebuilt daily.