Alert archive / Colorado / 2021
Weather alerts in Colorado, November 2021
23 weather alerts in November 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in November 2021. Tap one for its archive.
- Alerts
- 23
- Warnings
- 14
- Watches
- 5
- Advisories
- 4
- Busiest day
- November 17, 20213 alerts
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 |
|---|---|---|---|---|
| Nov 1, 9:09 AM MDT | Winter Weather Advisory | BOU | Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more | 36 hr |
| Nov 1, 2:29 PM MDT | Winter Weather Advisory | GJT | Eagle, Garfield, Moffat, Pitkin, Routt | 36 hr |
| Nov 3, 2:54 AM MDT | Dense Fog Advisory | BOU | Logan, Morgan, Phillips, Sedgwick, Washington, Weld | 8 hr |
| Nov 5, 2:35 PM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson, Yuma | 27 hr |
| Nov 5, 2:40 PM MDT | Red Flag Warning | BOU | Arapahoe, Douglas, Elbert, Lincoln, Park, Washington | 27 hr |
| Nov 6, 12:40 PM MDT | Red Flag Warning | PUB | Baca, Huerfano, Las Animas | 5 hr |
| Nov 7, 1:09 AM MST | Red Flag Warning | BOU | Park | 17 hr |
| Nov 7, 3:56 AM MST | Red Flag Warning | PUB | Alamosa, Chaffee, Conejos, Costilla, El Paso, Fremont and 5 more | 14 hr |
| Nov 9, 2:49 AM MST | Winter Weather Advisory | GJT | Eagle, Garfield, Moffat, Rio Blanco, Routt | 33 hr |
| Nov 10, 3:46 AM MST | Red Flag Warning | PUB | El Paso, Pueblo | 14 hr |
| Nov 12, 2:17 AM MST | Red Flag Warning | GLD | Yuma | 15 hr |
| Nov 14, 2:48 PM MST | Fire Weather Watch | PUB | Alamosa, Conejos, Costilla, Custer, El Paso, Fremont and 5 more | 19 hr |
| Nov 15, 10:10 AM MST | Red Flag Warning | PUB | Alamosa, Chaffee, Conejos, Costilla, Custer, El Paso and 8 more | 32 hr |
| Nov 15, 1:21 PM MST | Red Flag Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 6 more | 28 hr |
| Nov 17, 4:58 AM MST | Fire Weather Watch | BOU | Arapahoe, Boulder, Clear Creek, Douglas, Elbert, Gilpin and 3 more | 9 hr |
| Nov 17, 12:55 PM MST | Red Flag Warning | PUB | Chaffee, El Paso, Fremont, Lake, Teller | 34 hr |
| Nov 17, 2:16 PM MST | Red Flag Warning | BOU | Arapahoe, Boulder, Clear Creek, Douglas, Elbert, Gilpin and 3 more | 39 hr |
| Nov 19, 3:47 AM MST | Red Flag Warning | PUB | Fremont, Huerfano | 13 hr |
| Nov 21, 2:27 AM MST | Fire Weather Watch | GLD | Cheyenne, Kit Carson | 47 hr |
| Nov 21, 3:40 AM MST | Fire Weather Watch | PUB | Baca, Bent, Crowley, El Paso, Fremont, Huerfano and 6 more | 48 hr |
| Nov 22, 2:17 AM MST | Fire Weather Watch | BOU | Arapahoe, Boulder, Broomfield, Clear Creek, Douglas, Elbert and 6 more | 25 hr |
| Nov 22, 2:40 PM MST | Red Flag Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 10 more | 26 hr |
| Nov 22, 3:04 PM MST | Red Flag Warning | PUB | Baca, Costilla, Crowley, Custer, El Paso, Fremont and 6 more | 26 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Winter | |
| Winter Weather Advisory | 3 |
| Fire | |
| Red Flag Warning | 14 |
| Fire Weather Watch | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Park County8
- Huerfano County7
- El Paso County7
- Fremont County7
- Boulder County6
- Clear Creek County6
- Gilpin County6
- Jefferson County6
- Arapahoe County6
- Douglas County6
- Elbert County6
- Larimer County5
- Las Animas County5
- Teller County5
- Pueblo County5
- Weld County4
- Costilla County4
- Saguache County4
- Baca County3
- Alamosa County3
- Chaffee County3
- Conejos County3
- Lake County3
- Rio Grande County3
- Custer County3
- Broomfield County3
- Grand County2
- Jackson County2
- Summit County2
- Eagle County2
- Garfield County2
- Moffat County2
- Routt County2
- Washington County2
- Cheyenne County2
- Kit Carson County2
- Yuma County2
- Lincoln County2
- Adams County2
- Denver County2
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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. Rebuilt daily.