Alert archive / Colorado / Flash Flood Watches
Flash Flood Watches in Colorado, 2023
10 flash flood watches in 2023. 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 2023. Tap one for its archive.
- Flash Flood Watches
- 10
- Busiest month
- August6 flash flood watches
- Busiest day
- June 7, 20232 flash flood watches
Over time
By month
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 |
|---|---|---|---|---|
| Jun 5, 8:42 AM MDT | Flash Flood Watch | BOU | Boulder, Grand, Jackson, Larimer, Summit | 8 hr |
| Jun 7, 2:35 AM MDT | Flash Flood Watch | BOU | Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more | 17 hr |
| Jun 7, 9:00 AM MDT | Flash Flood Watch | PUB | Alamosa, Chaffee, Costilla, Custer, Fremont, Huerfano and 4 more | 9 hr |
| Aug 1, 12:13 PM MDT | Flash Flood Watch | GJT | Eagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt | 7 hr |
| Aug 16, 4:40 PM MDT | Flash Flood Watch | GJT | Eagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt | 3 hr |
| Aug 18, 3:08 PM MDT | Flash Flood Watch | GJT | Eagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt | 7 hr |
| Aug 23, 6:53 PM MDT | Flash Flood Watch | GJT | Eagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt | 2 hr |
| Aug 24, 4:12 PM MDT | Flash Flood Watch | GJT | Eagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt | 2 hr |
| Aug 27, 12:10 PM MDT | Flash Flood Watch | GJT | Eagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt | 7 hr |
| Sep 19, 2:34 PM MDT | Flash Flood Watch | GJT | Eagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Eagle County7
- Garfield County7
- Moffat County7
- Pitkin County7
- Rio Blanco County7
- Routt County7
- Boulder County2
- Grand County2
- Jackson County2
- Larimer County2
- Summit County2
- Clear Creek County1
- Gilpin County1
- Jefferson County1
- Park County1
- Alamosa County1
- Chaffee County1
- Costilla County1
- Custer County1
- Fremont County1
- Huerfano County1
- Lake County1
- Las Animas County1
- Pueblo County1
- Saguache County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.