Alert archive / Colorado / Winter Storm Warnings / 2011
Winter Storm Warnings in Colorado, December 2011
9 winter storm warnings in December 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 December 2011. Tap one for its archive.
- Winter Storm Warnings
- 9
- Busiest day
- December 12, 20112 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, 4:24 AM MST | Winter Storm Warning | GJT | Archuleta, Delta, Dolores, Garfield, Gunnison, Hinsdale and 7 more | 43 hr |
| Dec 4, 3:59 AM MST | Winter Storm Warning | PUB | Alamosa, Chaffee, Costilla, Custer, Fremont, Huerfano and 4 more | 29 hr |
| Dec 12, 2:10 AM MST | Winter Storm Warning | GJT | Archuleta, Dolores, Hinsdale, La Plata, Montezuma, San Juan and 1 more | 58 hr |
| Dec 12, 4:06 AM MST | Winter Storm Warning | PUB | Conejos, Mineral, Rio Grande | 47 hr |
| Dec 18, 3:29 PM MST | Winter Storm Warning | PUB | Crowley, Kiowa, Las Animas, Otero | 12 hr |
| Dec 19, 9:36 AM MST | Winter Storm Warning | PUB | Costilla, Custer, Fremont, Huerfano, Las Animas, Pueblo | 17 hr |
| Dec 19, 11:07 AM MST | Winter Storm Warning | BOU | Elbert, Lincoln | 17 hr |
| Dec 21, 4:33 AM MST | Winter Storm Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 6 more | 30 hr |
| Dec 21, 2:35 PM MST | Winter Storm Warning | PUB | Alamosa, Chaffee, Costilla, Custer, El Paso, Fremont and 5 more | 29 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Las Animas County4
- Costilla County3
- Custer County3
- Fremont County3
- Huerfano County3
- Pueblo County3
- Archuleta County2
- Dolores County2
- Hinsdale County2
- La Plata County2
- Montezuma County2
- San Juan County2
- San Miguel County2
- Alamosa County2
- Chaffee County2
- Saguache County2
- Teller County2
- Elbert County2
- Delta County1
- Garfield County1
- Gunnison County1
- Mesa County1
- Montrose County1
- Ouray County1
- Conejos County1
- Mineral County1
- Rio Grande County1
- Crowley County1
- Kiowa County1
- Otero County1
- Lincoln County1
- Adams County1
- Arapahoe County1
- Boulder County1
- Broomfield County1
- Clear Creek County1
- Denver County1
- Douglas County1
- Gilpin County1
- Jefferson County1
3 more counties
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.