Alert archive / Colorado / Flash Flood Warnings / 2011
Flash Flood Warnings in Colorado, July 2011
61 flash flood warnings in July 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 July 2011. Tap one for its archive.
- Flash Flood Warnings
- 61
- Busiest day
- July 14, 20118 flash flood 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 |
|---|---|---|---|---|
| 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 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Boulder County12
- Arapahoe County5
- San Miguel County5
- Yuma County4
- Eagle County4
- Garfield County4
- Mesa County4
- Kit Carson County3
- Gilpin County3
- Rio Blanco County3
- Montrose County3
- Dolores County3
- Elbert County3
- Weld County3
- El Paso County3
- Las Animas County2
- Denver County2
- Jefferson County2
- Clear Creek County2
- Pitkin County2
- Larimer County2
- Summit County2
- Ouray County2
- Cheyenne County2
- Grand County1
- Adams County1
- Phillips County1
- Sedgwick County1
- Washington County1
- Huerfano County1
- Gunnison County1
- Montezuma County1
- Delta County1
- San Juan County1
- Custer County1
- Fremont County1
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. Warning verification from the Mesonet's Cow. Rebuilt daily.