Alert archive / Montana / Winter Storm Warnings
Winter Storm Warnings in Montana, 2018
60 winter storm warnings in 2018. 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 2018. Tap one for its archive.
- Winter Storm Warnings
- 60
- Busiest month
- February18 winter storm warnings
- Busiest day
- February 7, 20184 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 9, 2:49 PM MST | Winter Storm Warning | BYZ | Big Horn, Golden Valley, Musselshell, Rosebud, Stillwater, Treasure | 28 hr |
| Jan 10, 9:02 AM MST | Winter Storm Warning | GGW | Dawson, Garfield, McCone, Prairie, Richland, Roosevelt and 2 more | 10 hr |
| Jan 10, 2:16 PM MST | Winter Storm Warning | MSO | Flathead, Lake, Mineral, Missoula, Sanders | 42 hr |
| Jan 10, 2:54 PM MST | Winter Storm Warning | TFX | 38 hr | |
| Jan 11, 3:04 AM MST | Winter Storm Warning | GGW | Petroleum | 27 hr |
| Jan 11, 3:54 AM MST | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass, Wheatland | 41 hr |
| Jan 18, 2:48 AM MST | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 45 hr |
| Feb 2, 2:51 PM MST | Winter Storm Warning | BYZ | Big Horn, Carbon, Custer, Golden Valley, Musselshell, Park and 6 more | 3 days |
| Feb 3, 3:27 AM MST | Winter Storm Warning | TFX | 59 hr | |
| Feb 3, 4:09 AM MST | Winter Storm Warning | MSO | Deer Lodge, Flathead, Granite, Lake, Powell, Sanders and 1 more | 32 hr |
| Feb 4, 2:56 AM MST | Winter Storm Warning | GGW | Petroleum | 36 hr |
| Feb 4, 11:54 AM MST | Winter Storm Warning | MSO | Flathead, Lake | 20 hr |
| Feb 5, 7:56 AM MST | Winter Storm Warning | MSO | Flathead, Lake, Sanders | 3 hr |
| Feb 7, 12:14 PM MST | Winter Storm Warning | GGW | Garfield, Petroleum, Phillips, Prairie, Valley | 39 hr |
| Feb 7, 2:25 PM MST | Winter Storm Warning | TFX | 48 hr | |
| Feb 7, 2:27 PM MST | Winter Storm Warning | MSO | Flathead, Lake | 33 hr |
| Feb 7, 3:33 PM MST | Winter Storm Warning | BYZ | Big Horn, Carbon, Carter, Custer, Fallon, Golden Valley and 8 more | 42 hr |
| Feb 8, 11:39 PM MST | Winter Storm Warning | MSO | Flathead, Lake, Missoula, Ravalli, Sanders | 11 hr |
| Feb 14, 6:01 PM MST | Winter Storm Warning | TFX | 16 hr | |
| Feb 14, 7:38 PM MST | Winter Storm Warning | MSO | Flathead, Lake, Sanders | 8 hr |
| Feb 16, 2:57 AM MST | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass, Wheatland | 72 hr |
| Feb 16, 2:53 PM MST | Winter Storm Warning | MSO | Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more | 57 hr |
| Feb 17, 2:44 AM MST | Winter Storm Warning | TFX | 36 hr | |
| Feb 17, 3:13 AM MST | Winter Storm Warning | GGW | Petroleum, Phillips | 29 hr |
| Feb 24, 6:50 PM MST | Winter Storm Warning | MSO | Mineral, Missoula, Sanders | 29 hr |
| Mar 1, 8:20 PM MST | Winter Storm Warning | TFX | 24 hr | |
| Mar 3, 3:07 AM MST | Winter Storm Warning | BYZ | Carbon, Carter, Fallon, Golden Valley, Musselshell, Park and 5 more | 3 days |
| Mar 3, 1:27 PM MST | Winter Storm Warning | TFX | 37 hr | |
| Mar 3, 2:27 PM MST | Winter Storm Warning | GGW | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 57 hr |
| Mar 14, 2:58 PM MDT | Winter Storm Warning | TFX | 24 hr | |
| Mar 15, 2:37 AM MDT | Winter Storm Warning | BYZ | Carter, Custer, Powder River, Rosebud, Treasure | 41 hr |
| Mar 15, 3:28 AM MDT | Winter Storm Warning | TFX | 11 hr | |
| Mar 22, 2:32 PM MDT | Winter Storm Warning | GGW | Sheridan | 27 hr |
| Mar 25, 2:50 AM MDT | Winter Storm Warning | BYZ | Carter | 35 hr |
| Mar 29, 2:28 PM MDT | Winter Storm Warning | GGW | Sheridan | 30 hr |
| Mar 30, 3:09 AM MDT | Winter Storm Warning | TFX | 27 hr | |
| Apr 1, 3:09 AM MDT | Winter Storm Warning | GGW | Dawson, Garfield, McCone, Petroleum, Phillips, Prairie and 2 more | 48 hr |
| Apr 1, 3:14 AM MDT | Winter Storm Warning | TFX | 42 hr | |
| Apr 1, 3:30 AM MDT | Winter Storm Warning | BYZ | Big Horn, Carbon, Carter, Custer, Fallon, Golden Valley and 8 more | 50 hr |
| Apr 4, 2:58 PM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass, Wheatland | 45 hr |
| Apr 5, 12:07 PM MDT | Winter Storm Warning | MSO | Deer Lodge, Flathead, Granite, Lake, Mineral, Missoula and 3 more | 24 hr |
| Apr 5, 1:07 PM MDT | Winter Storm Warning | TFX | 23 hr | |
| Apr 11, 2:15 PM MDT | Winter Storm Warning | TFX | 37 hr | |
| Apr 11, 3:15 PM MDT | Winter Storm Warning | BYZ | Carbon, Carter, Custer, Fallon, Golden Valley, Musselshell and 6 more | 48 hr |
| Apr 12, 3:08 AM MDT | Winter Storm Warning | GGW | Dawson, Garfield, Petroleum, Prairie, Wibaux | 33 hr |
| Apr 30, 3:15 AM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 24 hr |
| May 11, 2:56 AM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass, Wheatland | 36 hr |
| Oct 1, 2:12 PM MDT | Winter Storm Warning | TFX | 43 hr | |
| Oct 1, 2:49 PM MDT | Winter Storm Warning | MSO | Flathead, Lake | 42 hr |
| Nov 2, 3:31 AM MDT | Winter Storm Warning | GGW | Daniels, Sheridan, Valley | 10 hr |
| Nov 3, 2:43 PM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 31 hr |
| Nov 22, 1:53 PM MST | Winter Storm Warning | MSO | Deer Lodge, Granite, Lake, Mineral, Missoula, Powell and 3 more | 46 hr |
| Nov 23, 8:15 AM MST | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 37 hr |
| Nov 24, 8:32 AM MST | Winter Storm Warning | TFX | 3 hr | |
| Nov 30, 4:00 AM MST | Winter Storm Warning | TFX | 35 hr | |
| Nov 30, 4:09 AM MST | Winter Storm Warning | GGW | Garfield, Petroleum, Phillips, Valley | 35 hr |
| Dec 10, 2:42 PM MST | Winter Storm Warning | MSO | Flathead, Granite, Lake, Mineral, Missoula, Ravalli and 1 more | 42 hr |
| Dec 29, 8:39 AM MST | Winter Storm Warning | TFX | 43 hr | |
| Dec 29, 2:11 PM MST | Winter Storm Warning | MSO | Deer Lodge, Flathead, Granite, Lake, Mineral, Missoula and 4 more | 30 hr |
| Dec 30, 3:01 PM MST | Winter Storm Warning | BYZ | Carter | 24 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Stillwater County14
- Lake County13
- Carbon County13
- Park County13
- Sweet Grass County13
- Flathead County12
- Sanders County11
- Wheatland County9
- Missoula County8
- Petroleum County8
- Rosebud County7
- Treasure County7
- Mineral County7
- Carter County7
- Golden Valley County6
- Musselshell County6
- Garfield County6
- Valley County6
- Granite County6
- Prairie County5
- Custer County5
- Deer Lodge County5
- Powell County5
- Silver Bow County5
- Phillips County5
- Ravalli County5
- Big Horn County4
- Dawson County4
- Wibaux County4
- Powder River County4
- Fallon County4
- Sheridan County4
- McCone County3
- Richland County2
- Roosevelt County2
- Daniels County2
- Lincoln County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.