Alert archive / Colorado / Red Flag Warnings / 2020
Red Flag Warnings in Colorado, September 2020
18 red flag warnings in September 2020. 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 red flag warnings reaches back to 2005.
Red Flag Warnings by county
Each county as a circle sized by its count in September 2020. Tap one for its archive.
- Red Flag Warnings
- 18
- Busiest day
- September 4, 20203 red flag 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 |
|---|---|---|---|---|
| Sep 4, 1:08 PM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson, Yuma | 30 hr |
| Sep 4, 2:40 PM MDT | Red Flag Warning | BOU | Adams, Arapahoe, Boulder, Clear Creek, Elbert, Gilpin and 12 more | 3 days |
| Sep 4, 3:28 PM MDT | Red Flag Warning | GJT | Eagle, Garfield, Mesa, Moffat, Pitkin, Rio Blanco and 1 more | 3 days |
| Sep 5, 2:30 AM MDT | Red Flag Warning | GJT | Moffat, Rio Blanco, Routt | 67 hr |
| Sep 5, 12:01 PM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson, Yuma | 30 hr |
| Sep 6, 2:57 PM MDT | Red Flag Warning | PUB | Alamosa, Chaffee, Conejos, Costilla, Custer, Fremont and 7 more | 29 hr |
| Sep 19, 2:04 AM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson, Yuma | 17 hr |
| Sep 19, 3:55 AM MDT | Red Flag Warning | PUB | Bent, Kiowa, Prowers | 15 hr |
| Sep 23, 10:29 AM MDT | Red Flag Warning | GJT | Moffat | 34 hr |
| Sep 24, 3:00 AM MDT | Red Flag Warning | GJT | Eagle, Garfield, Mesa, Moffat, Montrose, Pitkin and 3 more | 41 hr |
| Sep 24, 4:06 AM MDT | Red Flag Warning | BOU | Boulder, Clear Creek, Douglas, Gilpin, Grand, Jackson and 4 more | 40 hr |
| Sep 24, 2:52 PM MDT | Red Flag Warning | PUB | Chaffee, El Paso, Fremont, Lake, Teller | 29 hr |
| Sep 25, 12:45 PM MDT | Red Flag Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 13 more | 31 hr |
| Sep 25, 2:32 PM MDT | Red Flag Warning | GJT | Delta, Eagle, Garfield, Gunnison, Hinsdale, Mesa and 3 more | 29 hr |
| Sep 25, 4:46 PM MDT | Red Flag Warning | PUB | Alamosa, Chaffee, Conejos, Costilla, Custer, El Paso and 8 more | 27 hr |
| Sep 26, 2:14 AM MDT | Red Flag Warning | GLD | Yuma | 16 hr |
| Sep 27, 2:33 AM MDT | Red Flag Warning | GJT | Dolores, La Plata, Montezuma, San Miguel | 17 hr |
| Sep 29, 2:27 AM MDT | Red Flag Warning | GLD | Kit Carson, Yuma | 16 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Yuma County5
- Moffat County5
- Kit Carson County4
- Rio Blanco County4
- Cheyenne County3
- Boulder County3
- Clear Creek County3
- Gilpin County3
- Larimer County3
- Park County3
- Eagle County3
- Garfield County3
- Mesa County3
- Pitkin County3
- Routt County3
- Chaffee County3
- Fremont County3
- Lake County3
- Adams County2
- Arapahoe County2
- Elbert County2
- Grand County2
- Jackson County2
- Lincoln County2
- Logan County2
- Morgan County2
- Phillips County2
- Sedgwick County2
- Summit County2
- Washington County2
- Weld County2
- Alamosa County2
- Conejos County2
- Costilla County2
- Custer County2
- Huerfano County2
- Las Animas County2
- Pueblo County2
- Rio Grande County2
- Saguache County2
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.