Alert archive / Montana / Winter Storm Warnings
Winter Storm Warnings in Montana, 2009
58 winter storm warnings in 2009. 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 2009. Tap one for its archive.
- Winter Storm Warnings
- 58
- Busiest month
- March20 winter storm warnings
- Busiest day
- March 28, 20094 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 |
|---|---|---|---|---|
| Dec 31, 8:47 PM MST | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 55 hr |
| Jan 1, 4:22 AM MST | Winter Storm Warning | MSO | Flathead, Granite, Lake, Lincoln, Mineral, Missoula and 2 more | 37 hr |
| Jan 1, 5:39 AM MST | Winter Storm Warning | TFX | 35 hr | |
| Jan 4, 4:10 AM MST | Winter Storm Warning | MSO | Flathead, Granite, Lake, Lincoln, Mineral, Missoula and 3 more | 41 hr |
| Jan 6, 4:15 AM MST | Winter Storm Warning | MSO | Flathead, Granite, Lake, Lincoln, Mineral, Missoula and 3 more | 30 hr |
| Jan 6, 4:17 AM MST | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass, Wheatland | 35 hr |
| Jan 6, 4:33 AM MST | Winter Storm Warning | TFX | 3 days | |
| Jan 8, 3:18 AM MST | Winter Storm Warning | GGW | Daniels, Roosevelt, Sheridan | 32 hr |
| Jan 24, 3:24 PM MST | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 23 hr |
| Feb 24, 5:53 PM MST | Winter Storm Warning | MSO | Granite, Missoula, Ravalli | 11 hr |
| Feb 25, 4:32 AM MST | Winter Storm Warning | MSO | Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more | 42 hr |
| Feb 26, 3:44 AM MST | Winter Storm Warning | BYZ | Big Horn, Carbon, Carter, Custer, Golden Valley, Musselshell and 6 more | 32 hr |
| Mar 4, 8:37 AM MST | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 27 hr |
| Mar 4, 2:29 PM MST | Winter Storm Warning | MSO | Flathead, Granite, Lake, Lincoln, Mineral, Missoula and 2 more | 42 hr |
| Mar 4, 2:48 PM MST | Winter Storm Warning | TFX | 38 hr | |
| Mar 5, 3:43 PM MST | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 23 hr |
| Mar 7, 4:24 AM MST | Winter Storm Warning | MSO | Flathead, Lake | 37 hr |
| Mar 8, 4:42 AM MDT | Winter Storm Warning | BYZ | Carbon, Carter, Powder River, Rosebud, Stillwater, Sweet Grass | 49 hr |
| Mar 9, 2:45 PM MDT | Winter Storm Warning | MSO | Flathead, Lake, Sanders | 24 hr |
| Mar 14, 9:07 PM MDT | Winter Storm Warning | MSO | Deer Lodge, Flathead, Granite, Lake, Missoula, Powell and 2 more | 47 hr |
| Mar 15, 4:23 AM MDT | Winter Storm Warning | TFX | 41 hr | |
| Mar 15, 3:30 PM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass, Wheatland | 36 hr |
| Mar 17, 9:20 AM MDT | Winter Storm Warning | BYZ | Carbon, Stillwater, Sweet Grass | 6 hr |
| Mar 22, 12:01 PM MDT | Winter Storm Warning | TFX | 21 hr | |
| Mar 22, 3:58 PM MDT | Winter Storm Warning | BYZ | Carbon, Park, Rosebud, Stillwater, Sweet Grass | 29 hr |
| Mar 24, 2:12 PM MDT | Winter Storm Warning | MSO | Flathead, Granite, Lake, Mineral, Missoula, Powell and 2 more | 33 hr |
| Mar 25, 10:50 PM MDT | Winter Storm Warning | BYZ | 5 hr | |
| Mar 28, 4:10 AM MDT | Winter Storm Warning | MSO | Deer Lodge, Flathead, Granite, Lake, Mineral, Missoula and 4 more | 44 hr |
| Mar 28, 4:41 AM MDT | Winter Storm Warning | TFX | 47 hr | |
| Mar 28, 12:49 PM MDT | Winter Storm Warning | BYZ | Carbon, Golden Valley, Musselshell, Park, Rosebud, Stillwater and 3 more | 51 hr |
| Mar 28, 3:16 PM MDT | Winter Storm Warning | GGW | Dawson, Garfield, Petroleum, Phillips, Prairie, Wibaux | 37 hr |
| Mar 31, 1:10 PM MDT | Winter Storm Warning | MSO | Granite, Lake, Missoula, Powell | 17 hr |
| Apr 2, 3:53 PM MDT | Winter Storm Warning | BYZ | Carbon, Carter, Park, Powder River, Stillwater, Sweet Grass and 1 more | 50 hr |
| Apr 9, 11:19 AM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 7 hr |
| Apr 13, 3:37 PM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass, Wheatland | 54 hr |
| Apr 14, 9:06 AM MDT | Winter Storm Warning | TFX | 36 hr | |
| Apr 23, 4:26 AM MDT | Winter Storm Warning | BYZ | Carbon, Golden Valley, Musselshell, Park, Stillwater, Sweet Grass and 1 more | 30 hr |
| Apr 23, 10:16 PM MDT | Winter Storm Warning | TFX | 8 hr | |
| Apr 26, 4:00 AM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 17 hr |
| Apr 27, 3:54 AM MDT | Winter Storm Warning | MSO | Deer Lodge, Flathead, Granite, Lake, Powell, Silver Bow | 56 hr |
| Apr 27, 5:40 AM MDT | Winter Storm Warning | TFX | 70 hr | |
| Apr 28, 10:40 AM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 23 hr |
| Apr 28, 2:46 PM MDT | Winter Storm Warning | GGW | Daniels, Phillips, Sheridan, Valley | 36 hr |
| Apr 29, 11:47 AM MDT | Winter Storm Warning | BYZ | Golden Valley, Wheatland | 10 hr |
| Oct 3, 3:54 PM MDT | Winter Storm Warning | BYZ | Big Horn, Carbon, Golden Valley, Musselshell, Park, Stillwater and 3 more | 54 hr |
| Oct 4, 3:36 AM MDT | Winter Storm Warning | MSO | Deer Lodge, Granite, Powell, Silver Bow | 32 hr |
| Oct 4, 4:17 AM MDT | Winter Storm Warning | TFX | 32 hr | |
| Oct 26, 3:59 AM MDT | Winter Storm Warning | MSO | Flathead, Granite, Lake, Mineral, Missoula, Powell and 2 more | 32 hr |
| Nov 7, 3:23 AM MST | Winter Storm Warning | MSO | Flathead, Lake, Lincoln, Mineral, Missoula, Sanders | 28 hr |
| Nov 11, 4:42 AM MST | Winter Storm Warning | TFX | 40 hr | |
| Nov 11, 9:37 AM MST | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 35 hr |
| Dec 4, 3:38 AM MST | Winter Storm Warning | TFX | 48 hr | |
| Dec 4, 3:45 PM MST | Winter Storm Warning | BYZ | Golden Valley, Wheatland | 36 hr |
| Dec 11, 1:30 PM MST | Winter Storm Warning | MSO | Deer Lodge, Flathead, Granite, Lake, Mineral, Missoula and 4 more | 3 days |
| Dec 12, 4:44 AM MST | Winter Storm Warning | TFX | 40 hr | |
| Dec 13, 4:41 AM MST | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 32 hr |
| Dec 24, 9:37 PM MST | Winter Storm Warning | BYZ | Carter, Custer, Fallon, Powder River | 43 hr |
| Dec 25, 3:20 AM MST | Winter Storm Warning | GGW | Wibaux | 37 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Carbon County20
- Stillwater County20
- Sweet Grass County20
- Park County18
- Lake County15
- Flathead County14
- Granite County14
- Missoula County13
- Ravalli County11
- Sanders County11
- Powell County11
- Mineral County10
- Wheatland County9
- Lincoln County6
- Deer Lodge County6
- Silver Bow County6
- Golden Valley County6
- Carter County4
- Musselshell County4
- Powder River County4
- Rosebud County4
- Treasure County3
- Daniels County2
- Sheridan County2
- Big Horn County2
- Custer County2
- Phillips County2
- Wibaux County2
- Roosevelt County1
- Dawson County1
- Garfield County1
- Petroleum County1
- Prairie County1
- Valley County1
- Fallon County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.