Alert archive / Colorado / Flash Flood Watches / 2021
Flash Flood Watches in Colorado, August 2021
13 flash flood watches in August 2021. 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 flash flood watches reaches back to 2005.
Flash Flood Watches by county
Each county as a circle sized by its count in August 2021. Tap one for its archive.
- Flash Flood Watches
- 13
- Busiest day
- August 1, 20215 flash flood watches
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 |
|---|---|---|---|---|
| Aug 1, 3:04 AM MDT | Flash Flood Watch | PUB | Conejos, Mineral, Rio Grande, Saguache | 18 hr |
| Aug 1, 3:05 AM MDT | Flash Flood Watch | GJT | Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more | 18 hr |
| Aug 1, 1:25 PM MDT | Flash Flood Watch | GJT | Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more | 35 hr |
| Aug 1, 2:04 PM MDT | Flash Flood Watch | BOU | Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more | 32 hr |
| Aug 1, 2:47 PM MDT | Flash Flood Watch | PUB | Alamosa, Chaffee, Conejos, Costilla, Custer, Fremont and 7 more | 32 hr |
| Aug 2, 2:30 PM MDT | Flash Flood Watch | GJT | Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more | 29 hr |
| Aug 2, 2:54 PM MDT | Flash Flood Watch | PUB | Alamosa, Chaffee, Conejos, Costilla, Custer, El Paso and 9 more | 31 hr |
| Aug 3, 3:41 AM MDT | Flash Flood Watch | BOU | Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more | 18 hr |
| Aug 15, 1:05 PM MDT | Flash Flood Watch | PUB | Alamosa, Chaffee, Costilla, Custer, Fremont, Huerfano and 3 more | 7 hr |
| Aug 16, 5:44 PM MDT | Flash Flood Watch | GJT | Eagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt | 2 hr |
| Aug 17, 1:10 PM MDT | Flash Flood Watch | GJT | Delta, Dolores, Eagle, Garfield, Gunnison, Mesa and 7 more | 59 hr |
| Aug 30, 2:17 PM MDT | Flash Flood Watch | GJT | Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more | 58 hr |
| Aug 31, 3:11 AM MDT | Flash Flood Watch | PUB | Alamosa, Chaffee, Conejos, Costilla, Custer, Fremont and 6 more | 42 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Eagle County6
- Garfield County6
- Moffat County6
- Pitkin County6
- Rio Blanco County6
- Routt County6
- Saguache County5
- Delta County5
- Dolores County5
- Gunnison County5
- Mesa County5
- Montrose County5
- Ouray County5
- San Miguel County5
- Conejos County4
- Mineral County4
- Rio Grande County4
- Archuleta County4
- Hinsdale County4
- La Plata County4
- Montezuma County4
- San Juan County4
- Alamosa County4
- Chaffee County4
- Costilla County4
- Custer County4
- Fremont County4
- Huerfano County4
- Las Animas County4
- Lake County3
- Pueblo County3
- Boulder County2
- Clear Creek County2
- Gilpin County2
- Grand County2
- Jackson County2
- Jefferson County2
- Larimer County2
- Park County2
- Summit County2
2 more counties
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.