Alert archive / Montana / Winter Storm Warnings / 2011
Winter Storm Warnings in Montana, April 2011
16 winter storm warnings in April 2011. 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 April 2011. Tap one for its archive.
- Winter Storm Warnings
- 16
- Busiest day
- April 21, 20113 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 |
|---|---|---|---|---|
| Apr 1, 2:01 PM MDT | Winter Storm Warning | TFX | 49 hr | |
| Apr 2, 3:26 AM MDT | Winter Storm Warning | GGW | Daniels, Sheridan, Valley | 34 hr |
| Apr 5, 2:55 AM MDT | Winter Storm Warning | BYZ | Carbon, Park, Stillwater, Sweet Grass | 18 hr |
| Apr 5, 7:59 AM MDT | Winter Storm Warning | TFX | 7 hr | |
| Apr 6, 2:15 PM MDT | Winter Storm Warning | TFX | 52 hr | |
| Apr 6, 3:40 PM MDT | Winter Storm Warning | BYZ | Carbon, Golden Valley, Park, Stillwater, Sweet Grass, Wheatland | 53 hr |
| Apr 13, 5:22 AM MDT | Winter Storm Warning | TFX | 23 hr | |
| Apr 17, 5:54 AM MDT | Winter Storm Warning | TFX | 30 hr | |
| Apr 17, 11:32 AM MDT | Winter Storm Warning | MSO | Flathead, Lake | 12 hr |
| Apr 18, 4:34 AM MDT | Winter Storm Warning | BYZ | Carbon, Golden Valley, Musselshell, Park, Stillwater, Sweet Grass and 1 more | 35 hr |
| Apr 18, 4:38 AM MDT | Winter Storm Warning | TFX | 37 hr | |
| Apr 21, 3:28 AM MDT | Winter Storm Warning | BYZ | Carbon, Golden Valley, Park, Stillwater, Sweet Grass, Wheatland | 38 hr |
| Apr 21, 4:56 AM MDT | Winter Storm Warning | TFX | 37 hr | |
| Apr 21, 2:03 PM MDT | Winter Storm Warning | MSO | Flathead, Lake | 18 hr |
| Apr 22, 4:07 AM MDT | Winter Storm Warning | GGW | Petroleum, Wibaux | 16 hr |
| Apr 28, 3:00 PM MDT | Winter Storm Warning | TFX | 39 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.