Alert archive / Montana / Winter Storm Warnings
Winter Storm Warnings in Montana, 2017
56 winter storm warnings in 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 2017. Tap one for its archive.
- Winter Storm Warnings
- 56
- Busiest month
- December11 winter storm warnings
- Busiest day
- January 30, 20173 winter storm warnings
Over time
By month
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 |
|---|---|---|---|---|
| Jan 1, 4:57 AM MST | Winter Storm Warning | MSO | Deer Lodge, Granite, Lake, Missoula, Powell, Ravalli and 1 more | 14 hr |
| Jan 7, 3:16 PM MST | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 5 days |
| Jan 7, 11:27 PM MST | Winter Storm Warning | MSO | Flathead, Granite, Lake, Lincoln, Mineral, Missoula and 3 more | 42 hr |
| Jan 8, 2:21 PM MST | Winter Storm Warning | GGW | Phillips | 24 hr |
| Jan 17, 1:42 PM MST | Winter Storm Warning | MSO | Flathead, Lincoln, Mineral, Missoula, Sanders | 26 hr |
| Jan 30, 3:50 AM MST | Winter Storm Warning | BYZ | Carbon, Golden Valley, Park, Stillwater, Sweet Grass, Wheatland | 54 hr |
| Jan 30, 12:07 PM MST | Winter Storm Warning | MSO | Deer Lodge, Granite, Lake, Mineral, Missoula, Powell and 3 more | 40 hr |
| Jan 30, 2:44 PM MST | Winter Storm Warning | TFX | 52 hr | |
| Feb 3, 8:25 PM MST | Winter Storm Warning | MSO | Flathead, Lake, Lincoln, Mineral, Missoula, Ravalli and 1 more | 21 hr |
| Feb 3, 9:30 PM MST | Winter Storm Warning | TFX | 72 hr | |
| Feb 4, 3:09 AM MST | Winter Storm Warning | MSO | Flathead, Granite, Lake, Lincoln, Mineral, Missoula and 2 more | 59 hr |
| Feb 5, 2:45 PM MST | Winter Storm Warning | MSO | Flathead, Lake | 30 hr |
| Feb 8, 11:42 AM MST | Winter Storm Warning | MSO | Flathead, Lake, Lincoln, Missoula, Ravalli, Sanders | 32 hr |
| Feb 20, 7:46 PM MST | Winter Storm Warning | TFX | 14 hr | |
| Feb 22, 1:44 PM MST | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass, Wheatland | 25 hr |
| Feb 27, 2:39 PM MST | Winter Storm Warning | MSO | Mineral, Missoula, Sanders | 14 hr |
| Mar 4, 1:37 PM MST | Winter Storm Warning | MSO | Deer Lodge, Granite, Lake, Mineral, Missoula, Powell and 2 more | 31 hr |
| Mar 5, 12:37 PM MST | Winter Storm Warning | TFX | 4 hr | |
| Mar 7, 2:42 PM MST | Winter Storm Warning | MSO | Granite, Lake, Mineral, Missoula, Powell, Ravalli and 1 more | 20 hr |
| Mar 8, 4:41 AM MST | Winter Storm Warning | BYZ | Big Horn, Carbon, Golden Valley, Musselshell, Park, Powder River and 5 more | 57 hr |
| Mar 8, 2:50 PM MST | Winter Storm Warning | TFX | 42 hr | |
| Mar 9, 4:06 AM MST | Winter Storm Warning | MSO | Flathead, Lake, Lincoln, Sanders | 31 hr |
| Mar 9, 7:54 AM MST | Winter Storm Warning | MSO | Deer Lodge, Granite, Missoula, Powell, Ravalli, Silver Bow | 5 hr |
| Mar 29, 3:58 PM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 53 hr |
| Apr 8, 11:13 AM MDT | Winter Storm Warning | TFX | 37 hr | |
| Apr 8, 3:07 PM MDT | Winter Storm Warning | BYZ | 35 hr | |
| Apr 24, 4:15 AM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 34 hr |
| Apr 27, 4:21 AM MDT | Winter Storm Warning | BYZ | 35 hr | |
| May 16, 1:14 PM MDT | Winter Storm Warning | MSO | Deer Lodge, Flathead, Granite, Lake, Missoula, Powell and 2 more | 38 hr |
| May 16, 2:05 PM MDT | Winter Storm Warning | TFX | 40 hr | |
| May 16, 3:19 PM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass, Wheatland | 45 hr |
| Sep 14, 4:04 AM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass, Wheatland | 58 hr |
| Sep 14, 9:29 AM MDT | Winter Storm Warning | MSO | Deer Lodge, Granite, Lake, Missoula, Powell, Ravalli and 1 more | 45 hr |
| Sep 14, 11:49 AM MDT | Winter Storm Warning | TFX | 45 hr | |
| Sep 20, 2:51 PM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass, Wheatland | 63 hr |
| Oct 1, 3:56 AM MDT | Winter Storm Warning | TFX | 56 hr | |
| Oct 1, 2:25 PM MDT | Winter Storm Warning | MSO | Deer Lodge, Flathead, Granite, Lake, Powell, Silver Bow | 40 hr |
| Oct 1, 7:25 PM MDT | Winter Storm Warning | GGW | Phillips | 41 hr |
| Oct 31, 3:17 AM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass, Wheatland | 48 hr |
| Oct 31, 2:43 PM MDT | Winter Storm Warning | TFX | 30 hr | |
| Nov 1, 1:50 PM MDT | Winter Storm Warning | MSO | Flathead, Lake, Lincoln, Sanders | 46 hr |
| Nov 1, 2:45 PM MDT | Winter Storm Warning | TFX | 3 days | |
| Nov 2, 2:19 PM MDT | Winter Storm Warning | BYZ | Carbon, Golden Valley, Musselshell, Park, Stillwater, Sweet Grass and 1 more | 49 hr |
| Nov 3, 8:38 AM MDT | Winter Storm Warning | MSO | Deer Lodge, Granite, Powell, Silver Bow | 24 hr |
| Nov 16, 3:22 AM MST | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 38 hr |
| 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.
- Lake County17
- Missoula County16
- Carbon County15
- Park County15
- Stillwater County15
- Sweet Grass County15
- Granite County14
- Powell County14
- Sanders County13
- Flathead County12
- Ravalli County11
- Deer Lodge County10
- Silver Bow County10
- Mineral County10
- Lincoln County9
- Wheatland County9
- Phillips County4
- Golden Valley County4
- Musselshell County3
- Big Horn County2
- Powder River County2
- Rosebud County2
- Treasure County2
- Garfield County2
- Petroleum County2
- Daniels County1
- McCone County1
- Richland County1
- Roosevelt County1
- Sheridan County1
- Valley County1
- Custer County1
The busiest days
Days with the most alerts issued, by UTC date.
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.