Alert archive / Montana / Special Weather Statements / 2021
Special Weather Statements in Montana, December 2021
37 special weather statements in December 2021. 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 special weather statements reaches back to 2006.
Special Weather Statements by county
Each county as a circle sized by its count in December 2021. Tap one for its archive.
- Special Weather Statements
- 37
- Busiest day
- December 23, 20216 special weather statements
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 |
|---|---|---|---|---|
| Dec 4, 3:56 PM MST | Special Weather Statement | BYZ | Carbon | 6 hr |
| Dec 5, 4:05 AM MST | Special Weather Statement | MSO | Missoula | 25 min |
| Dec 5, 5:45 AM MST | Special Weather Statement | BYZ | Stillwater, Sweet Grass | 2 hr |
| Dec 5, 4:39 PM MST | Special Weather Statement | BYZ | Stillwater | 3 hr |
| Dec 6, 2:37 PM MST | Special Weather Statement | BYZ | Sweet Grass | 83 min |
| Dec 10, 4:52 AM MST | Special Weather Statement | MSO | Missoula | 53 min |
| Dec 10, 6:26 AM MST | Special Weather Statement | MSO | Powell | 49 min |
| Dec 13, 8:42 AM MST | Special Weather Statement | MSO | Mineral, Missoula | 48 min |
| Dec 13, 9:26 AM MST | Special Weather Statement | MSO | Lake, Mineral | 49 min |
| Dec 14, 2:55 PM MST | Special Weather Statement | MSO | Silver Bow | 65 min |
| Dec 14, 3:48 PM MST | Special Weather Statement | TFX | Jefferson | 57 min |
| Dec 14, 4:05 PM MST | Special Weather Statement | MSO | Lake | 55 min |
| Dec 14, 5:41 PM MST | Special Weather Statement | TFX | Chouteau | 64 min |
| Dec 16, 1:12 PM MST | Special Weather Statement | MSO | Flathead | 48 min |
| Dec 19, 8:48 AM MST | Special Weather Statement | MSO | Flathead | 72 min |
| Dec 20, 11:36 PM MST | Special Weather Statement | BYZ | Yellowstone | 54 min |
| Dec 23, 8:01 AM MST | Special Weather Statement | MSO | Granite | 44 min |
| Dec 23, 8:46 AM MST | Special Weather Statement | MSO | Powell | 44 min |
| Dec 23, 3:29 PM MST | Special Weather Statement | MSO | Missoula | 61 min |
| Dec 23, 3:57 PM MST | Special Weather Statement | MSO | Ravalli | 63 min |
| Dec 23, 4:12 PM MST | Special Weather Statement | MSO | Powell | 93 min |
| Dec 23, 4:52 PM MST | Special Weather Statement | MSO | Deer Lodge, Silver Bow | 83 min |
| Dec 23, 7:47 PM MST | Special Weather Statement | BYZ | Wheatland | 58 min |
| Dec 23, 8:06 PM MST | Special Weather Statement | GGW | Phillips | 54 min |
| Dec 23, 8:14 PM MST | Special Weather Statement | GGW | Petroleum | 61 min |
| Dec 23, 9:17 PM MST | Special Weather Statement | GGW | Valley | 58 min |
| Dec 23, 10:16 PM MST | Special Weather Statement | GGW | Daniels, Dawson, McCone, Prairie, Richland, Roosevelt and 2 more | 59 min |
| Dec 24, 12:49 PM MST | Special Weather Statement | BYZ | Yellowstone | 56 min |
| Dec 25, 8:23 AM MST | Special Weather Statement | MSO | Missoula | 52 min |
| Dec 25, 8:46 AM MST | Special Weather Statement | BYZ | Big Horn | 59 min |
| Dec 26, 4:59 AM MST | Special Weather Statement | BYZ | Big Horn, Carbon, Golden Valley, Musselshell, Stillwater, Sweet Grass and 2 more | 3 hr |
| Dec 26, 8:00 AM MST | Special Weather Statement | BYZ | Big Horn, Carbon, Golden Valley, Stillwater, Sweet Grass, Wheatland and 1 more | 90 min |
| Dec 26, 10:52 AM MST | Special Weather Statement | MSO | Missoula | 38 min |
| Dec 26, 1:19 PM MST | Special Weather Statement | TFX | Glacier, Lewis and Clark, Teton | 41 min |
| Dec 26, 2:02 PM MST | Special Weather Statement | TFX | Lewis and Clark, Pondera, Teton | 43 min |
| Dec 26, 2:59 PM MST | Special Weather Statement | TFX | Cascade, Pondera, Teton, Toole | 46 min |
| Dec 27, 12:21 PM MST | Special Weather Statement | BYZ | Big Horn, Carbon, Custer, Rosebud, Stillwater, Treasure and 1 more | 69 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Missoula County6
- Stillwater County5
- Yellowstone County5
- Carbon County4
- Sweet Grass County4
- Big Horn County4
- Powell County3
- Wheatland County3
- Teton County3
- Mineral County2
- Lake County2
- Silver Bow County2
- Flathead County2
- Golden Valley County2
- Lewis and Clark County2
- Pondera County2
- Jefferson County1
- Chouteau County1
- Granite County1
- Ravalli County1
- Deer Lodge County1
- Phillips County1
- Petroleum County1
- Valley County1
- Daniels County1
- Dawson County1
- McCone County1
- Prairie County1
- Richland County1
- Roosevelt County1
- Sheridan County1
- Wibaux County1
- Musselshell County1
- Glacier County1
- Cascade County1
- Toole County1
- Custer County1
- Rosebud County1
- Treasure County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.