Alert archive / Colorado / Flash Flood Warnings
Flash Flood Warnings in Colorado, 2021
285 flash flood warnings in 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 2021. Tap one for its archive.
- Flash Flood Warnings
- 285
- Busiest month
- July188 flash flood warnings
- Busiest day
- July 31, 202124 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 2, 4:07 PM MDT | Flash Flood Warning | BOU | Larimer | 3 hr |
| May 16, 2:44 PM MDT | Flash Flood Warning | PUB | Huerfano | 3 hr |
| May 16, 4:49 PM MDT | Flash Flood Warning | PUB | Pueblo | 88 min |
| May 16, 5:46 PM MDT | Flash Flood Warning | GLD | Kit Carson | 3 hr |
| May 16, 6:04 PM MDT | Flash Flood Warning | GLD | Cheyenne | 3 hr |
| May 16, 6:09 PM MDT | Flash Flood Warning | PUB | Kiowa, Prowers | 4 hr |
| May 16, 7:22 PM MDT | Flash Flood Warning | GLD | Kit Carson | 5 hr |
| May 16, 8:24 PM MDT | Flash Flood Warning | GLD | Kit Carson | 4 hr |
| May 17, 1:46 PM MDT | Flash Flood Warning | PUB | Huerfano, Las Animas | 3 hr |
| May 17, 2:16 PM MDT | Flash Flood Warning | PUB | Custer, Pueblo | 3 hr |
| May 17, 2:27 PM MDT | Flash Flood Warning | GLD | Yuma | 3 hr |
| May 17, 3:32 PM MDT | Flash Flood Warning | PUB | Fremont | 118 min |
| May 17, 4:42 PM MDT | Flash Flood Warning | PUB | Las Animas | 3 hr |
| May 17, 5:19 PM MDT | Flash Flood Warning | PUB | Pueblo | 108 min |
| May 17, 6:29 PM MDT | Flash Flood Warning | PUB | El Paso | 3 hr |
| May 18, 9:36 AM MDT | Flash Flood Warning | PUB | Custer, Pueblo | 3 hr |
| May 22, 3:48 PM MDT | Flash Flood Warning | PUB | Pueblo | 68 min |
| May 22, 7:30 PM MDT | Flash Flood Warning | PUB | Las Animas | 91 min |
| May 24, 3:22 PM MDT | Flash Flood Warning | PUB | Prowers | 3 hr |
| May 25, 1:45 AM MDT | Flash Flood Warning | GLD | Kit Carson | 92 min |
| May 29, 5:53 PM MDT | Flash Flood Warning | PUB | Custer, Pueblo | 86 min |
| May 29, 6:44 PM MDT | Flash Flood Warning | GLD | Kit Carson | 48 min |
| May 29, 7:57 PM MDT | Flash Flood Warning | PUB | El Paso | 79 min |
| May 29, 9:03 PM MDT | Flash Flood Warning | GLD | Yuma | 28 min |
| May 29, 10:00 PM MDT | Flash Flood Warning | PUB | Bent, Otero | 7 hr |
| May 31, 11:45 AM MDT | Flash Flood Warning | GJT | La Plata | 3 hr |
| May 31, 3:36 PM MDT | Flash Flood Warning | BOU | Grand | 84 min |
| Jun 5, 12:28 PM MDT | Flash Flood Warning | BOU | Larimer | 98 min |
| Jun 5, 1:05 PM MDT | Flash Flood Warning | PUB | Costilla, Huerfano | 115 min |
| Jun 5, 1:59 PM MDT | Flash Flood Warning | BOU | Grand | 78 min |
| Jun 6, 10:22 PM MDT | Flash Flood Warning | PUB | Prowers | 113 min |
| Jun 15, 3:22 PM MDT | Flash Flood Warning | PUB | Costilla, Huerfano | 112 min |
| Jun 19, 5:01 PM MDT | Flash Flood Warning | PUB | Custer, Pueblo | 3 hr |
| Jun 19, 5:45 PM MDT | Flash Flood Warning | PUB | Chaffee, Fremont, Saguache | 110 min |
| Jun 25, 12:44 PM MDT | Flash Flood Warning | PUB | Custer, Fremont, Saguache | 73 min |
| Jun 25, 2:04 PM MDT | Flash Flood Warning | BOU | Larimer | 116 min |
| Jun 26, 3:47 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 118 min |
| Jun 27, 4:25 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 2 hr |
| Jun 27, 5:56 PM MDT | Flash Flood Warning | BOU | Boulder | 94 min |
| Jun 29, 5:05 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 3 hr |
| 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 |
| Jul 31, 6:00 PM MDT | Flash Flood Warning | PUB | Costilla, Huerfano | 3 hr |
| Jul 31, 6:11 PM MDT | Flash Flood Warning | GJT | Garfield, Mesa | 109 min |
| Jul 31, 6:11 PM MDT | Flash Flood Warning | PUB | Custer, Fremont, Huerfano, Pueblo | 2 hr |
| Jul 31, 6:20 PM MDT | Flash Flood Warning | PUB | Huerfano, Las Animas | 3 hr |
| Jul 31, 6:21 PM MDT | Flash Flood Warning | PUB | Baca | 3 hr |
| Jul 31, 7:00 PM MDT | Flash Flood Warning | GJT | Garfield, Mesa | 2 hr |
| Jul 31, 8:28 PM MDT | Flash Flood Warning | PUB | Las Animas | 3 hr |
| Jul 31, 10:45 PM MDT | Flash Flood Warning | PUB | Pueblo | 4 hr |
| Jul 31, 11:24 PM MDT | Flash Flood Warning | PUB | Bent, Otero | 4 hr |
| Jul 31, 11:41 PM MDT | Flash Flood Warning | PUB | Pueblo | 4 hr |
| Aug 1, 2:43 AM MDT | Flash Flood Warning | PUB | Pueblo | 3 hr |
| Aug 2, 3:47 PM MDT | Flash Flood Warning | BOU | Jackson, Larimer | 3 hr |
| Aug 2, 3:49 PM MDT | Flash Flood Warning | PUB | Chaffee, Fremont | 2 hr |
| Aug 2, 4:11 PM MDT | Flash Flood Warning | BOU | Larimer | 3 hr |
| Aug 2, 5:19 PM MDT | Flash Flood Warning | PUB | Saguache | 3 hr |
| Aug 2, 6:26 PM MDT | Flash Flood Warning | BOU | Larimer | 116 min |
| Aug 2, 6:47 PM MDT | Flash Flood Warning | PUB | Huerfano | 2 hr |
| Aug 2, 7:38 PM MDT | Flash Flood Warning | PUB | Huerfano | 96 min |
| Aug 2, 8:27 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 2 hr |
| Aug 2, 8:43 PM MDT | Flash Flood Warning | GJT | Garfield, Mesa | 2 hr |
| Aug 3, 12:16 PM MDT | Flash Flood Warning | GJT | San Miguel | 88 min |
| Aug 3, 2:54 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 111 min |
| Aug 3, 2:58 PM MDT | Flash Flood Warning | BOU | Elbert | 2 hr |
| Aug 3, 3:21 PM MDT | Flash Flood Warning | GJT | San Miguel | 104 min |
| Aug 3, 3:27 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield, Pitkin | 2 hr |
| Aug 3, 4:05 PM MDT | Flash Flood Warning | BOU | Adams, Arapahoe | 115 min |
| Aug 3, 4:46 PM MDT | Flash Flood Warning | PUB | Costilla | 3 hr |
| Aug 3, 5:13 PM MDT | Flash Flood Warning | PUB | Pueblo | 3 hr |
| Aug 3, 5:26 PM MDT | Flash Flood Warning | PUB | Teller | 109 min |
| Aug 3, 7:03 PM MDT | Flash Flood Warning | PUB | Bent | 3 hr |
| Aug 3, 7:06 PM MDT | Flash Flood Warning | PUB | Las Animas, Otero, Pueblo | 3 hr |
| Aug 4, 1:59 PM MDT | Flash Flood Warning | PUB | Bent | 3 hr |
| Aug 4, 3:31 PM MDT | Flash Flood Warning | PUB | Prowers | 119 min |
| Aug 6, 6:53 PM MDT | Flash Flood Warning | BOU | Larimer | 2 hr |
| Aug 12, 7:28 PM MDT | Flash Flood Warning | GLD | Kit Carson | 3 hr |
| Aug 12, 11:41 PM MDT | Flash Flood Warning | BOU | Douglas | 94 min |
| Aug 13, 2:27 PM MDT | Flash Flood Warning | BOU | Grand | 2 hr |
| Aug 13, 5:39 PM MDT | Flash Flood Warning | BOU | Grand | 2 hr |
| Aug 14, 6:48 PM MDT | Flash Flood Warning | BOU | Larimer | 115 min |
| Aug 15, 2:01 AM MDT | Flash Flood Warning | PUB | Costilla, Huerfano | 3 hr |
| Aug 15, 1:50 PM MDT | Flash Flood Warning | PUB | Chaffee, Saguache | 2 hr |
| Aug 15, 3:08 PM MDT | Flash Flood Warning | PUB | Chaffee | 2 hr |
| Aug 16, 3:53 PM MDT | Flash Flood Warning | BOU | Jackson, Larimer | 112 min |
| Aug 16, 4:24 PM MDT | Flash Flood Warning | BOU | Grand | 111 min |
| Aug 16, 4:32 PM MDT | Flash Flood Warning | BOU | Larimer | 118 min |
| Aug 17, 4:41 PM MDT | Flash Flood Warning | BOU | Larimer | 2 hr |
| Aug 18, 3:14 PM MDT | Flash Flood Warning | BOU | Larimer | 3 hr |
| Aug 18, 4:20 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 3 hr |
| Aug 19, 6:40 AM MDT | Flash Flood Warning | GJT | Garfield, Mesa | 86 min |
| Aug 19, 5:09 PM MDT | Flash Flood Warning | BOU | Phillips | 3 hr |
| Aug 19, 7:43 PM MDT | Flash Flood Warning | BOU | Phillips | 3 hr |
| Aug 19, 7:50 PM MDT | Flash Flood Warning | GLD | Yuma | 5 hr |
| Aug 19, 10:38 PM MDT | Flash Flood Warning | BOU | Phillips | 4 hr |
| Aug 20, 2:15 AM MDT | Flash Flood Warning | BOU | Larimer | 2 hr |
| Sep 3, 4:14 PM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 103 min |
| Sep 28, 4:03 PM MDT | Flash Flood Warning | GJT | Garfield, Mesa | 97 min |
| Sep 29, 8:41 AM MDT | Flash Flood Warning | GJT | Eagle, Garfield | 3 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Larimer County36
- Garfield County36
- Huerfano County29
- Fremont County28
- Pueblo County27
- Eagle County24
- Chaffee County23
- Saguache County22
- Grand County21
- Custer County20
- Mesa County19
- Costilla County15
- El Paso County11
- San Miguel County10
- Las Animas County9
- Kit Carson County8
- Weld County6
- Montrose County6
- Prowers County5
- Pitkin County5
- Bent County4
- Otero County4
- Clear Creek County4
- Teller County4
- Montezuma County4
- Yuma County3
- Boulder County3
- Park County3
- Jackson County3
- Phillips County3
- Cheyenne County2
- La Plata County2
- Gilpin County2
- Arapahoe County2
- Jefferson County2
- Ouray County2
- San Juan County2
- Dolores County2
- Douglas County2
- Kiowa County1
The busiest days
Days with the most alerts issued, by UTC date.
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.