Alert archive / Colorado / Red Flag Warnings / 2018
Red Flag Warnings in Colorado, September 2018
14 red flag warnings in September 2018. 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 2018. Tap one for its archive.
- Red Flag Warnings
- 14
- Busiest day
- September 10, 20183 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 10, 1:38 PM MDT | Red Flag Warning | GJT | Moffat, Rio Blanco | 30 hr |
| Sep 10, 1:38 PM MDT | Red Flag Warning | GJT | Delta, Eagle, Garfield, Mesa, Moffat, Montrose and 5 more | 55 hr |
| Sep 10, 2:30 PM MDT | Red Flag Warning | BOU | Grand, Jackson, Summit | 54 hr |
| Sep 11, 2:32 PM MDT | Red Flag Warning | GJT | Delta, Eagle, Garfield, Gunnison, Hinsdale, Mesa and 7 more | 54 hr |
| Sep 11, 3:06 PM MDT | Red Flag Warning | BOU | Boulder, Grand, Jackson, Larimer, Summit | 53 hr |
| Sep 12, 2:17 PM MDT | Red Flag Warning | GJT | Moffat, Rio Blanco | 55 hr |
| Sep 14, 3:31 AM MDT | Red Flag Warning | GJT | Moffat, Rio Blanco | 41 hr |
| Sep 18, 1:30 PM MDT | Red Flag Warning | GJT | Moffat, Rio Blanco | 30 hr |
| Sep 22, 4:01 AM MDT | Red Flag Warning | GJT | Moffat | 15 hr |
| Sep 23, 3:39 AM MDT | Red Flag Warning | BOU | Grand, Jackson, Summit | 16 hr |
| Sep 23, 2:05 PM MDT | Red Flag Warning | GJT | Moffat, Rio Blanco | 24 hr |
| Sep 28, 3:50 AM MDT | Red Flag Warning | GJT | Garfield, Mesa, Moffat, Montrose, Rio Blanco, Routt and 1 more | 40 hr |
| Sep 28, 10:32 AM MDT | Red Flag Warning | BOU | Boulder, Clear Creek, Douglas, Gilpin, Grand, Jackson and 4 more | 32 hr |
| Sep 28, 1:14 PM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, El Paso, Fremont, Rio Grande and 2 more | 29 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Moffat County9
- Rio Blanco County8
- Grand County4
- Jackson County4
- Summit County4
- Garfield County3
- Mesa County3
- Montrose County3
- Routt County3
- San Miguel County3
- Delta County2
- Eagle County2
- Ouray County2
- Pitkin County2
- Boulder County2
- Larimer County2
- Gunnison County1
- Hinsdale County1
- Clear Creek County1
- Douglas County1
- Gilpin County1
- Jefferson County1
- Park County1
- Alamosa County1
- Conejos County1
- Costilla County1
- El Paso County1
- Fremont County1
- Rio Grande County1
- Saguache County1
- Teller County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.