Alert archive / Colorado / Flash Flood Warnings
Flash Flood Warnings in Colorado, 2011
89 flash flood warnings in 2011. 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 warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Flash Flood Warnings
- 89
- Busiest month
- July61 flash flood warnings
- Busiest day
- July 14, 20118 flash flood warnings
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 |
|---|---|---|---|---|
| May 19, 5:16 PM MDT | Flash Flood Warning | BOU | Morgan | 3 hr |
| May 23, 8:18 PM MDT | Flash Flood Warning | GLD | Kit Carson, Yuma | 4 hr |
| May 24, 1:36 PM MDT | Flash Flood Warning | GLD | Cheyenne, Kit Carson, Yuma | 6 hr |
| May 24, 2:42 PM MDT | Flash Flood Warning | GLD | Kit Carson, Yuma | 6 hr |
| May 24, 2:55 PM MDT | Flash Flood Warning | BOU | Washington | 6 hr |
| May 24, 3:56 PM MDT | Flash Flood Warning | BOU | Phillips | 6 hr |
| May 24, 4:31 PM MDT | Flash Flood Warning | GLD | Kit Carson, Yuma | 3 hr |
| Jun 9, 12:19 AM MDT | Flash Flood Warning | BOU | Larimer | 3 hr |
| Jul 2, 7:09 PM MDT | Flash Flood Warning | GLD | Yuma | 4 hr |
| Jul 2, 7:31 PM MDT | Flash Flood Warning | GLD | Kit Carson | 3 hr |
| Jul 5, 5:34 PM MDT | Flash Flood Warning | BOU | Grand | 86 min |
| Jul 5, 9:21 PM MDT | Flash Flood Warning | GLD | Yuma | 4 hr |
| Jul 7, 2:29 PM MDT | Flash Flood Warning | PUB | Las Animas | 89 min |
| Jul 7, 5:14 PM MDT | Flash Flood Warning | BOU | Adams, Arapahoe, Denver | 5 hr |
| Jul 7, 6:18 PM MDT | Flash Flood Warning | BOU | Boulder | 3 hr |
| Jul 7, 6:27 PM MDT | Flash Flood Warning | BOU | Boulder, Gilpin, Jefferson | 3 hr |
| Jul 7, 8:02 PM MDT | Flash Flood Warning | BOU | Clear Creek, Gilpin | 97 min |
| Jul 8, 10:02 PM MDT | Flash Flood Warning | BOU | Phillips, Sedgwick | 6 hr |
| Jul 8, 10:29 PM MDT | Flash Flood Warning | GLD | Yuma | 3 hr |
| Jul 8, 10:33 PM MDT | Flash Flood Warning | BOU | Washington | 4 hr |
| Jul 9, 3:33 PM MDT | Flash Flood Warning | GJT | Rio Blanco | 3 hr |
| Jul 10, 3:45 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 3 hr |
| Jul 10, 4:06 PM MDT | Flash Flood Warning | GJT | Montrose, San Miguel | 2 hr |
| Jul 10, 6:52 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 82 min |
| Jul 11, 12:51 PM MDT | Flash Flood Warning | GJT | Mesa | 3 hr |
| Jul 11, 1:10 PM MDT | Flash Flood Warning | PUB | Huerfano, Las Animas | 83 min |
| Jul 11, 1:33 PM MDT | Flash Flood Warning | GJT | Gunnison, Mesa, Pitkin | 3 hr |
| Jul 11, 2:40 PM MDT | Flash Flood Warning | GLD | Kit Carson | 3 hr |
| Jul 11, 3:21 PM MDT | Flash Flood Warning | GJT | Rio Blanco | 3 hr |
| Jul 12, 2:13 PM MDT | Flash Flood Warning | GJT | Rio Blanco | 3 hr |
| Jul 12, 2:20 PM MDT | Flash Flood Warning | GJT | Montrose, San Miguel | 3 hr |
| Jul 12, 2:43 PM MDT | Flash Flood Warning | GJT | Mesa | 3 hr |
| Jul 12, 4:37 PM MDT | Flash Flood Warning | GJT | Dolores, Montezuma | 3 hr |
| Jul 12, 4:56 PM MDT | Flash Flood Warning | GJT | Dolores, Montrose, San Miguel | 3 hr |
| Jul 12, 5:20 PM MDT | Flash Flood Warning | GJT | Delta, Mesa | 4 hr |
| Jul 12, 6:34 PM MDT | Flash Flood Warning | BOU | Arapahoe, Elbert | 2 hr |
| Jul 12, 7:19 PM MDT | Flash Flood Warning | BOU | Arapahoe, Elbert | 91 min |
| Jul 12, 8:33 PM MDT | Flash Flood Warning | BOU | Arapahoe, Elbert | 3 hr |
| Jul 12, 8:44 PM MDT | Flash Flood Warning | BOU | Weld | 2 hr |
| Jul 12, 10:48 PM MDT | Flash Flood Warning | BOU | Weld | 3 hr |
| Jul 12, 10:54 PM MDT | Flash Flood Warning | BOU | Larimer | 2 hr |
| Jul 13, 12:16 AM MDT | Flash Flood Warning | BOU | Weld | 3 hr |
| Jul 13, 6:17 PM MDT | Flash Flood Warning | BOU | Boulder | 3 hr |
| Jul 13, 8:08 PM MDT | Flash Flood Warning | BOU | Boulder | 103 min |
| Jul 13, 10:35 PM MDT | Flash Flood Warning | PUB | El Paso | 3 hr |
| Jul 13, 11:15 PM MDT | Flash Flood Warning | BOU | Boulder | 3 hr |
| Jul 13, 11:16 PM MDT | Flash Flood Warning | BOU | Boulder | 3 hr |
| Jul 14, 1:00 PM MDT | Flash Flood Warning | BOU | Boulder | 3 hr |
| Jul 14, 2:09 PM MDT | Flash Flood Warning | BOU | Boulder | 2 hr |
| Jul 14, 3:22 PM MDT | Flash Flood Warning | BOU | Arapahoe, Denver, Jefferson | 2 hr |
| Jul 16, 3:46 PM MDT | Flash Flood Warning | BOU | Boulder | 89 min |
| Jul 17, 2:57 PM MDT | Flash Flood Warning | BOU | Clear Creek, Gilpin | 3 hr |
| Jul 17, 3:44 PM MDT | Flash Flood Warning | BOU | Boulder | 3 hr |
| Jul 17, 4:25 PM MDT | Flash Flood Warning | GJT | Garfield | 112 min |
| Jul 18, 6:03 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield, Pitkin | 3 hr |
| Jul 18, 6:08 PM MDT | Flash Flood Warning | BOU | Larimer | 2 hr |
| Jul 18, 7:25 PM MDT | Flash Flood Warning | BOU | Summit | 95 min |
| Jul 18, 8:52 PM MDT | Flash Flood Warning | BOU | Summit | 113 min |
| Jul 19, 3:27 PM MDT | Flash Flood Warning | BOU | Boulder | 2 hr |
| Jul 19, 4:45 PM MDT | Flash Flood Warning | GJT | Dolores, Ouray, San Juan, San Miguel | 3 hr |
| Jul 19, 6:14 PM MDT | Flash Flood Warning | BOU | Boulder | 42 min |
| Jul 24, 4:03 PM MDT | Flash Flood Warning | PUB | El Paso | 2 hr |
| Jul 28, 6:18 PM MDT | Flash Flood Warning | GLD | Cheyenne | 3 hr |
| Jul 28, 7:24 PM MDT | Flash Flood Warning | PUB | El Paso | 84 min |
| Jul 28, 7:42 PM MDT | Flash Flood Warning | GLD | Yuma | 2 hr |
| Jul 28, 9:25 PM MDT | Flash Flood Warning | GLD | Cheyenne, Kit Carson | 4 hr |
| Jul 29, 4:37 PM MDT | Flash Flood Warning | PUB | Custer, Fremont | 4 hr |
| Jul 30, 5:11 PM MDT | Flash Flood Warning | GJT | Ouray, San Miguel | 3 hr |
| Jul 31, 5:52 PM MDT | Flash Flood Warning | GJT | Eagle | 3 hr |
| Aug 2, 2:13 PM MDT | Flash Flood Warning | BOU | Douglas, Jefferson | 91 min |
| Aug 2, 4:25 PM MDT | Flash Flood Warning | GJT | Gunnison, Montrose, Ouray | 3 hr |
| Aug 2, 4:50 PM MDT | Flash Flood Warning | PUB | El Paso, Teller | 3 hr |
| Aug 2, 5:11 PM MDT | Flash Flood Warning | PUB | Huerfano, Pueblo | 3 hr |
| Aug 2, 6:10 PM MDT | Flash Flood Warning | PUB | Baca, Las Animas, Otero | 3 hr |
| Aug 2, 7:56 PM MDT | Flash Flood Warning | PUB | El Paso | 3 hr |
| Aug 3, 3:35 PM MDT | Flash Flood Warning | PUB | Las Animas | 3 hr |
| Aug 3, 4:47 PM MDT | Flash Flood Warning | PUB | Teller | 2 hr |
| Aug 3, 4:52 PM MDT | Flash Flood Warning | PUB | Custer, Fremont, Pueblo, Saguache | 3 hr |
| Aug 3, 4:59 PM MDT | Flash Flood Warning | BOU | Douglas | 70 min |
| Aug 3, 5:17 PM MDT | Flash Flood Warning | PUB | El Paso, Teller | 2 hr |
| Aug 4, 1:23 PM MDT | Flash Flood Warning | PUB | Las Animas | 2 hr |
| Aug 4, 3:07 PM MDT | Flash Flood Warning | PUB | Teller | 82 min |
| Aug 4, 3:12 PM MDT | Flash Flood Warning | BOU | Douglas | 103 min |
| Aug 4, 7:12 PM MDT | Flash Flood Warning | GLD | Kit Carson | 3 hr |
| Aug 15, 5:19 PM MDT | Flash Flood Warning | GJT | Dolores, San Miguel | 3 hr |
| Aug 27, 12:18 PM MDT | Flash Flood Warning | GJT | Rio Blanco | 3 hr |
| Sep 14, 4:32 PM MDT | Flash Flood Warning | PUB | El Paso, Teller | 3 hr |
| Sep 14, 7:28 PM MDT | Flash Flood Warning | PUB | El Paso, Teller | 2 hr |
| Sep 14, 9:28 PM MDT | Flash Flood Warning | PUB | El Paso, Teller | 3 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Boulder County12
- El Paso County9
- Kit Carson County8
- Yuma County8
- Teller County7
- San Miguel County6
- Las Animas County5
- Arapahoe County5
- Rio Blanco County4
- Eagle County4
- Garfield County4
- Montrose County4
- Mesa County4
- Dolores County4
- Cheyenne County3
- Larimer County3
- Gilpin County3
- Jefferson County3
- Elbert County3
- Weld County3
- Ouray County3
- Douglas County3
- Washington County2
- Phillips County2
- Denver County2
- Clear Creek County2
- Huerfano County2
- Gunnison County2
- Pitkin County2
- Summit County2
- Custer County2
- Fremont County2
- Pueblo County2
- Morgan County1
- Grand County1
- Adams County1
- Sedgwick County1
- Montezuma County1
- Delta County1
- San Juan County1
3 more counties
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.