Alert archive / Montana / Winter Storm Warnings / 2017
Winter Storm Warnings in Montana, December 2017
11 winter storm warnings in December 2017. 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 in December 2017. Tap one for its archive.
- Winter Storm Warnings
- 11
- Busiest day
- December 27, 20173 winter storm 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 |
|---|---|---|---|---|
| Dec 2, 1:54 PM MST | Winter Storm Warning | TFX | 37 hr | |
| Dec 2, 2:02 PM MST | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 38 hr |
| Dec 17, 3:10 AM MST | Winter Storm Warning | TFX | 4 days | |
| Dec 17, 2:58 PM MST | Winter Storm Warning | MSO | Flathead, Granite, Lake, Lincoln, Mineral, Missoula and 2 more | 68 hr |
| Dec 18, 2:35 PM MST | Winter Storm Warning | GGW | Daniels, Garfield, McCone, Petroleum, Phillips, Richland and 3 more | 50 hr |
| Dec 22, 3:00 AM MST | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 27 hr |
| Dec 22, 3:50 PM MST | Winter Storm Warning | MSO | Deer Lodge, Granite, Lake, Missoula, Powell, Ravalli and 1 more | 7 hr |
| Dec 27, 4:04 AM MST | Winter Storm Warning | BYZ | Big Horn, Carbon, Custer, Golden Valley, Musselshell, Park and 6 more | 3 days |
| Dec 27, 2:25 PM MST | Winter Storm Warning | TFX | 3 days | |
| Dec 27, 3:02 PM MST | Winter Storm Warning | MSO | Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more | 3 days |
| Dec 28, 3:55 AM MST | Winter Storm Warning | GGW | Garfield, Petroleum, Phillips | 61 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Carbon County3
- Park County3
- Stillwater County3
- Sweet Grass County3
- Granite County3
- Lake County3
- Missoula County3
- Powell County3
- Flathead County2
- Lincoln County2
- Mineral County2
- Sanders County2
- Garfield County2
- Petroleum County2
- Phillips County2
- Deer Lodge County2
- Ravalli County2
- Silver Bow County2
- Daniels County1
- McCone County1
- Richland County1
- Roosevelt County1
- Sheridan County1
- Valley County1
- Big Horn County1
- Custer County1
- Golden Valley County1
- Musselshell County1
- Powder River County1
- Rosebud County1
- Treasure County1
- Wheatland County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.