Alert archive / Colorado / Flash Flood Warnings / 2021
Flash Flood Warnings in Colorado, July 2021
188 flash flood warnings in July 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 warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in July 2021. Tap one for its archive.
- Flash Flood Warnings
- 188
- Busiest day
- July 31, 202124 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 |
|---|---|---|---|---|
| Jun 30, 8:50 PM MDT | Flash Flood Warning | BOU | Weld | 3 hr |
| Jun 30, 10:32 PM MDT | Flash Flood Warning | BOU | Weld | 3 hr |
| Jul 1, 12:56 AM MDT | Flash Flood Warning | BOU | Weld | 3 hr |
| Jul 1, 11:49 AM MDT | Flash Flood Warning | BOU | Larimer | 116 min |
| Jul 1, 12:13 PM MDT | Flash Flood Warning | BOU | Clear Creek, Gilpin | 86 min |
| Jul 1, 12:24 PM MDT | Flash Flood Warning | BOU | Weld | 2 hr |
| Jul 1, 1:27 PM MDT | Flash Flood Warning | PUB | Huerfano | 2 hr |
| Jul 1, 1:28 PM MDT | Flash Flood Warning | BOU | Weld | 2 hr |
| Jul 1, 3:09 PM MDT | Flash Flood Warning | BOU | Larimer | 114 min |
| Jul 1, 3:21 PM MDT | Flash Flood Warning | BOU | Arapahoe | 114 min |
| Jul 1, 4:36 PM MDT | Flash Flood Warning | BOU | Jefferson | 84 min |
| Jul 1, 5:19 PM MDT | Flash Flood Warning | PUB | Chaffee, Fremont | 3 hr |
| Jul 1, 5:44 PM MDT | Flash Flood Warning | PUB | Pueblo | 3 hr |
| Jul 1, 6:21 PM MDT | Flash Flood Warning | BOU | Jefferson, Park | 114 min |
| Jul 1, 7:08 PM MDT | Flash Flood Warning | PUB | Otero | 2 hr |
| Jul 1, 8:52 PM MDT | Flash Flood Warning | PUB | Chaffee, Fremont, Saguache | 2 hr |
| Jul 1, 9:09 PM MDT | Flash Flood Warning | PUB | Fremont, Pueblo | 2 hr |
| Jul 1, 9:58 PM MDT | Flash Flood Warning | PUB | Crowley, El Paso, Pueblo | 3 hr |
| Jul 1, 10:27 PM MDT | Flash Flood Warning | PUB | Chaffee, El Paso, Fremont, Teller | 66 min |
| Jul 2, 12:58 PM MDT | Flash Flood Warning | PUB | Chaffee | 3 hr |
| Jul 2, 4:33 PM MDT | Flash Flood Warning | PUB | Costilla, Huerfano | 3 hr |
| Jul 2, 4:52 PM MDT | Flash Flood Warning | PUB | Costilla, Huerfano | 3 hr |
| Jul 2, 5:52 PM MDT | Flash Flood Warning | PUB | Huerfano | 97 min |
| Jul 2, 9:49 PM MDT | Flash Flood Warning | PUB | Chaffee | 116 min |
| Jul 3, 3:04 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 116 min |
| Jul 3, 6:00 PM MDT | Flash Flood Warning | BOU | Logan | 2 hr |
| Jul 3, 6:29 PM MDT | Flash Flood Warning | PUB | El Paso | 94 min |
| Jul 4, 3:20 PM MDT | Flash Flood Warning | BOU | Larimer | 85 min |
| Jul 4, 4:57 PM MDT | Flash Flood Warning | PUB | Custer, Pueblo | 2 hr |
| Jul 4, 8:36 PM MDT | Flash Flood Warning | PUB | Prowers | 2 hr |
| Jul 4, 8:48 PM MDT | Flash Flood Warning | PUB | Custer, Fremont | 85 min |
| Jul 5, 12:45 PM MDT | Flash Flood Warning | PUB | Chaffee | 3 hr |
| Jul 5, 1:39 PM MDT | Flash Flood Warning | BOU | Larimer | 96 min |
| Jul 5, 2:00 PM MDT | Flash Flood Warning | BOU | Grand | 90 min |
| Jul 5, 2:12 PM MDT | Flash Flood Warning | BOU | Larimer | 93 min |
| Jul 5, 3:13 PM MDT | Flash Flood Warning | GJT | Garfield, Mesa | 82 min |
| Jul 5, 3:28 PM MDT | Flash Flood Warning | BOU | Grand | 92 min |
| Jul 5, 4:40 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 70 min |
| Jul 5, 4:47 PM MDT | Flash Flood Warning | PUB | Custer, Huerfano | 3 hr |
| Jul 5, 5:31 PM MDT | Flash Flood Warning | BOU | Grand | 89 min |
| Jul 5, 6:56 PM MDT | Flash Flood Warning | BOU | Grand | 79 min |
| Jul 6, 1:50 PM MDT | Flash Flood Warning | PUB | Fremont, Saguache | 112 min |
| Jul 6, 4:20 PM MDT | Flash Flood Warning | PUB | Huerfano | 3 hr |
| Jul 6, 4:47 PM MDT | Flash Flood Warning | PUB | Huerfano | 118 min |
| Jul 6, 4:51 PM MDT | Flash Flood Warning | PUB | Custer, Pueblo | 3 hr |
| Jul 6, 5:58 PM MDT | Flash Flood Warning | PUB | El Paso, Pueblo | 7 hr |
| Jul 6, 8:43 PM MDT | Flash Flood Warning | PUB | Pueblo | 101 min |
| Jul 6, 9:34 PM MDT | Flash Flood Warning | PUB | El Paso, Fremont, Pueblo, Teller | 3 hr |
| Jul 8, 2:17 PM MDT | Flash Flood Warning | PUB | Costilla, Huerfano | 2 hr |
| Jul 13, 2:29 PM MDT | Flash Flood Warning | GJT | Hinsdale, Ouray | 3 hr |
| Jul 13, 3:01 PM MDT | Flash Flood Warning | PUB | Chaffee, Fremont, Saguache | 3 hr |
| Jul 13, 3:06 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 114 min |
| Jul 13, 3:11 PM MDT | Flash Flood Warning | PUB | Custer, Fremont, Saguache | 3 hr |
| Jul 13, 4:18 PM MDT | Flash Flood Warning | PUB | Chaffee | 3 hr |
| Jul 13, 6:02 PM MDT | Flash Flood Warning | PUB | Huerfano, Las Animas | 3 hr |
| Jul 14, 2:15 PM MDT | Flash Flood Warning | GJT | Garfield | 113 min |
| Jul 14, 3:35 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 115 min |
| Jul 14, 3:55 PM MDT | Flash Flood Warning | PUB | Costilla, Huerfano | 3 hr |
| Jul 15, 3:18 PM MDT | Flash Flood Warning | GJT | Garfield, Mesa | 89 min |
| Jul 16, 5:29 PM MDT | Flash Flood Warning | GLD | Kit Carson | 87 min |
| Jul 16, 5:39 PM MDT | Flash Flood Warning | GLD | Cheyenne | 58 min |
| Jul 16, 6:23 PM MDT | Flash Flood Warning | GLD | Kit Carson | 84 min |
| Jul 17, 2:06 PM MDT | Flash Flood Warning | PUB | Chaffee | 3 hr |
| Jul 17, 7:01 PM MDT | Flash Flood Warning | PUB | El Paso | 3 hr |
| Jul 17, 7:28 PM MDT | Flash Flood Warning | PUB | Las Animas | 3 hr |
| Jul 20, 2:50 PM MDT | Flash Flood Warning | GJT | Ouray, San Juan, San Miguel | 5 hr |
| Jul 20, 3:21 PM MDT | Flash Flood Warning | GJT | Dolores, San Juan, San Miguel | 3 hr |
| Jul 20, 3:53 PM MDT | Flash Flood Warning | GJT | San Miguel | 76 min |
| Jul 20, 4:53 PM MDT | Flash Flood Warning | BOU | Larimer | 82 min |
| Jul 20, 5:24 PM MDT | Flash Flood Warning | BOU | Larimer | 51 min |
| Jul 20, 6:58 PM MDT | Flash Flood Warning | BOU | Larimer | 92 min |
| Jul 20, 7:09 PM MDT | Flash Flood Warning | BOU | Larimer | 81 min |
| Jul 20, 8:36 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 3 hr |
| Jul 21, 1:30 PM MDT | Flash Flood Warning | BOU | Larimer | 3 hr |
| Jul 21, 2:02 PM MDT | Flash Flood Warning | PUB | Chaffee | 3 hr |
| Jul 21, 2:47 PM MDT | Flash Flood Warning | BOU | Larimer | 103 min |
| Jul 21, 3:16 PM MDT | Flash Flood Warning | BOU | Grand, Larimer | 3 hr |
| Jul 21, 3:38 PM MDT | Flash Flood Warning | PUB | Fremont | 2 hr |
| Jul 21, 4:08 PM MDT | Flash Flood Warning | PUB | Custer | 3 hr |
| Jul 21, 5:06 PM MDT | Flash Flood Warning | BOU | Clear Creek | 3 hr |
| Jul 21, 6:11 PM MDT | Flash Flood Warning | BOU | Grand | 3 hr |
| Jul 21, 6:19 PM MDT | Flash Flood Warning | BOU | Douglas | 3 hr |
| Jul 21, 6:19 PM MDT | Flash Flood Warning | PUB | Costilla, Huerfano | 3 hr |
| Jul 21, 7:00 PM MDT | Flash Flood Warning | PUB | Costilla, Huerfano | 3 hr |
| Jul 22, 2:36 PM MDT | Flash Flood Warning | BOU | Grand | 5 hr |
| Jul 22, 3:13 PM MDT | Flash Flood Warning | BOU | Grand | 3 hr |
| Jul 22, 3:46 PM MDT | Flash Flood Warning | PUB | Costilla | 3 hr |
| Jul 22, 4:29 PM MDT | Flash Flood Warning | PUB | Fremont, Saguache | 3 hr |
| Jul 22, 4:30 PM MDT | Flash Flood Warning | GJT | La Plata, Montezuma | 6 min |
| Jul 22, 4:36 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 3 hr |
| Jul 22, 5:06 PM MDT | Flash Flood Warning | PUB | Las Animas | 3 hr |
| Jul 22, 5:07 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 3 hr |
| Jul 22, 5:41 PM MDT | Flash Flood Warning | PUB | Saguache | 3 hr |
| Jul 23, 1:58 PM MDT | Flash Flood Warning | GJT | Dolores, Montezuma | 4 hr |
| Jul 23, 3:24 PM MDT | Flash Flood Warning | PUB | Saguache | 3 hr |
| Jul 23, 3:34 PM MDT | Flash Flood Warning | PUB | Chaffee, Fremont, Saguache | 3 hr |
| Jul 23, 4:05 PM MDT | Flash Flood Warning | BOU | Grand | 3 hr |
| Jul 23, 4:51 PM MDT | Flash Flood Warning | BOU | Clear Creek, Gilpin | 114 min |
| Jul 23, 4:53 PM MDT | Flash Flood Warning | PUB | Chaffee | 5 hr |
| Jul 23, 5:19 PM MDT | Flash Flood Warning | PUB | Saguache | 3 hr |
| Jul 23, 5:34 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 3 hr |
| Jul 23, 6:58 PM MDT | Flash Flood Warning | PUB | El Paso, Teller | 2 hr |
| Jul 23, 7:03 PM MDT | Flash Flood Warning | PUB | Chaffee, Fremont, Saguache | 3 hr |
| Jul 23, 7:14 PM MDT | Flash Flood Warning | PUB | Chaffee | 3 hr |
| Jul 23, 7:26 PM MDT | Flash Flood Warning | PUB | Chaffee, Fremont | 3 hr |
| Jul 23, 7:29 PM MDT | Flash Flood Warning | PUB | Fremont | 117 min |
| Jul 23, 7:38 PM MDT | Flash Flood Warning | PUB | Chaffee, Saguache | 2 hr |
| Jul 23, 7:46 PM MDT | Flash Flood Warning | PUB | Fremont, Saguache | 2 hr |
| Jul 23, 7:49 PM MDT | Flash Flood Warning | PUB | Fremont, Saguache | 2 hr |
| Jul 24, 1:39 PM MDT | Flash Flood Warning | PUB | Pueblo | 6 hr |
| Jul 24, 1:49 PM MDT | Flash Flood Warning | GJT | Garfield, Mesa | 3 hr |
| Jul 24, 3:03 PM MDT | Flash Flood Warning | GJT | Montrose, San Miguel | 3 hr |
| Jul 24, 3:12 PM MDT | Flash Flood Warning | GJT | Garfield, Mesa | 82 min |
| Jul 24, 3:28 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 69 min |
| Jul 24, 3:47 PM MDT | Flash Flood Warning | GJT | Montrose | 3 hr |
| Jul 24, 3:55 PM MDT | Flash Flood Warning | GJT | Mesa, Montrose | 3 hr |
| Jul 24, 4:01 PM MDT | Flash Flood Warning | PUB | Pueblo | 3 hr |
| Jul 24, 5:17 PM MDT | Flash Flood Warning | PUB | Custer, Saguache | 3 hr |
| Jul 24, 8:49 PM MDT | Flash Flood Warning | PUB | Custer, Saguache | 92 min |
| Jul 25, 12:31 PM MDT | Flash Flood Warning | PUB | Costilla, Huerfano | 3 hr |
| Jul 25, 1:09 PM MDT | Flash Flood Warning | PUB | Huerfano | 3 hr |
| Jul 25, 3:25 PM MDT | Flash Flood Warning | GJT | Gunnison, Pitkin | 3 hr |
| Jul 25, 4:06 PM MDT | Flash Flood Warning | GJT | Eagle | 3 hr |
| Jul 25, 4:54 PM MDT | Flash Flood Warning | GJT | Montrose | 3 hr |
| Jul 25, 5:55 PM MDT | Flash Flood Warning | PUB | Fremont, Saguache | 3 hr |
| Jul 25, 6:33 PM MDT | Flash Flood Warning | PUB | Fremont | 3 hr |
| Jul 25, 6:51 PM MDT | Flash Flood Warning | GJT | Garfield, Mesa | 114 min |
| Jul 25, 7:11 PM MDT | Flash Flood Warning | PUB | Custer, Fremont | 3 hr |
| Jul 25, 7:19 PM MDT | Flash Flood Warning | GJT | Mesa | 3 hr |
| Jul 25, 7:39 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 81 min |
| Jul 25, 7:48 PM MDT | Flash Flood Warning | PUB | Custer, Fremont, Pueblo | 3 hr |
| Jul 25, 8:07 PM MDT | Flash Flood Warning | PUB | Custer, Huerfano, Pueblo | 3 hr |
| Jul 25, 11:35 PM MDT | Flash Flood Warning | GJT | Mesa | 115 min |
| Jul 26, 5:50 PM MDT | Flash Flood Warning | GJT | Mesa, Montrose | 114 min |
| Jul 28, 2:14 PM MDT | Flash Flood Warning | GJT | San Miguel | 3 hr |
| Jul 28, 3:19 PM MDT | Flash Flood Warning | GJT | San Miguel | 3 hr |
| Jul 28, 3:47 PM MDT | Flash Flood Warning | GJT | Rio Blanco | 2 hr |
| Jul 28, 5:22 PM MDT | Flash Flood Warning | GJT | Mesa, Montrose | 77 min |
| Jul 28, 6:32 PM MDT | Flash Flood Warning | GJT | Mesa | 54 min |
| Jul 28, 7:21 PM MDT | Flash Flood Warning | GJT | Garfield, Mesa | 46 min |
| Jul 29, 3:47 PM MDT | Flash Flood Warning | GJT | San Miguel | 3 hr |
| Jul 29, 4:11 PM MDT | Flash Flood Warning | GJT | Pitkin | 4 hr |
| Jul 29, 4:12 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 66 min |
| Jul 29, 4:43 PM MDT | Flash Flood Warning | GJT | Montezuma | 3 hr |
| Jul 29, 6:32 PM MDT | Flash Flood Warning | GJT | Montezuma | 3 hr |
| Jul 29, 7:50 PM MDT | Flash Flood Warning | BOU | Jackson, Larimer | 3 hr |
| Jul 29, 8:14 PM MDT | Flash Flood Warning | BOU | Grand | 112 min |
| Jul 29, 8:45 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 4 hr |
| Jul 29, 10:45 PM MDT | Flash Flood Warning | GJT | Garfield, Mesa | 4 hr |
| Jul 30, 1:01 PM MDT | Flash Flood Warning | BOU | Larimer | 7 hr |
| Jul 30, 1:14 PM MDT | Flash Flood Warning | BOU | Larimer | 3 hr |
| Jul 30, 1:34 PM MDT | Flash Flood Warning | BOU | Larimer | 6 hr |
| Jul 30, 2:07 PM MDT | Flash Flood Warning | BOU | Larimer | 5 hr |
| Jul 30, 2:30 PM MDT | Flash Flood Warning | BOU | Clear Creek, Grand | 3 hr |
| Jul 30, 2:51 PM MDT | Flash Flood Warning | BOU | Grand | 4 hr |
| Jul 30, 3:00 PM MDT | Flash Flood Warning | PUB | Chaffee, Fremont, Saguache | 3 hr |
| Jul 30, 3:02 PM MDT | Flash Flood Warning | BOU | Grand | 3 hr |
| Jul 30, 3:46 PM MDT | Flash Flood Warning | GJT | Eagle | 3 hr |
| Jul 30, 4:16 PM MDT | Flash Flood Warning | BOU | Grand | 3 hr |
| Jul 30, 4:28 PM MDT | Flash Flood Warning | BOU | Park | 3 hr |
| Jul 30, 4:30 PM MDT | Flash Flood Warning | BOU | Larimer | 4 hr |
| Jul 30, 5:16 PM MDT | Flash Flood Warning | PUB | Saguache | 2 hr |
| Jul 30, 5:36 PM MDT | Flash Flood Warning | BOU | Larimer | 3 hr |
| Jul 30, 5:37 PM MDT | Flash Flood Warning | BOU | Grand | 99 min |
| Jul 30, 6:23 PM MDT | Flash Flood Warning | GJT | Pitkin | 112 min |
| Jul 30, 10:18 PM MDT | Flash Flood Warning | BOU | Boulder, Broomfield, Weld | 3 hr |
| Jul 31, 11:49 AM MDT | Flash Flood Warning | BOU | Larimer | 2 hr |
| Jul 31, 12:27 PM MDT | Flash Flood Warning | BOU | Grand | 3 hr |
| Jul 31, 1:39 PM MDT | Flash Flood Warning | PUB | Fremont | 3 hr |
| Jul 31, 2:16 PM MDT | Flash Flood Warning | BOU | Larimer | 89 min |
| Jul 31, 2:36 PM MDT | Flash Flood Warning | PUB | Chaffee | 3 hr |
| Jul 31, 2:38 PM MDT | Flash Flood Warning | PUB | Custer | 118 min |
| Jul 31, 2:43 PM MDT | Flash Flood Warning | BOU | Larimer | 92 min |
| Jul 31, 2:45 PM MDT | Flash Flood Warning | GJT | San Miguel | 2 hr |
| Jul 31, 2:48 PM MDT | Flash Flood Warning | PUB | Chaffee | 3 hr |
| Jul 31, 3:24 PM MDT | Flash Flood Warning | BOU | Larimer | 81 min |
| Jul 31, 3:33 PM MDT | Flash Flood Warning | BOU | Park | 3 hr |
| Jul 31, 3:37 PM MDT | Flash Flood Warning | BOU | Boulder | 3 hr |
| Jul 31, 3:50 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 115 min |
| Jul 31, 4:16 PM MDT | Flash Flood Warning | GJT | Garfield, Mesa | 104 min |
| Jul 31, 4:31 PM MDT | Flash Flood Warning | PUB | El Paso | 3 hr |
| Jul 31, 4:46 PM MDT | Flash Flood Warning | PUB | Huerfano | 4 hr |
| Jul 31, 4:50 PM MDT | Flash Flood Warning | PUB | Custer, Pueblo | 3 hr |
| Jul 31, 5:03 PM MDT | Flash Flood Warning | PUB | Custer, Huerfano, Pueblo | 3 hr |
| Jul 31, 5:13 PM MDT | Flash Flood Warning | PUB | Costilla, Huerfano | 4 hr |
| Jul 31, 5:35 PM MDT | Flash Flood Warning | PUB | El Paso | 3 hr |
| Jul 31, 5:43 PM MDT | Flash Flood Warning | PUB | Costilla, Huerfano | 3 hr |
| Jul 31, 5:48 PM MDT | Flash Flood Warning | GJT | Pitkin | 117 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Larimer County23
- Fremont County23
- Garfield County22
- Huerfano County19
- Chaffee County19
- Saguache County18
- Grand County16
- Eagle County15
- Pueblo County14
- Custer County14
- Mesa County14
- Costilla County10
- El Paso County9
- San Miguel County8
- Weld County6
- Montrose County6
- Clear Creek County4
- Montezuma County4
- Pitkin County4
- Park County3
- Teller County3
- Las Animas County3
- Gilpin County2
- Jefferson County2
- Ouray County2
- Kit Carson County2
- San Juan County2
- Dolores County2
- Boulder County2
- Arapahoe County1
- Otero County1
- Crowley County1
- Logan County1
- Prowers County1
- Hinsdale County1
- Cheyenne County1
- Douglas County1
- La Plata County1
- Gunnison County1
- Rio Blanco County1
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.