Alert archive / Colorado / Areal Flood Advisories / 2021
Areal Flood Advisories in Colorado, August 2021
53 areal flood advisories in August 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 areal flood advisories reaches back to 2005.
Areal Flood Advisories by county
Each county as a circle sized by its count in August 2021. Tap one for its archive.
- Areal Flood Advisories
- 53
- Busiest day
- August 2, 202110 areal flood advisories
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 31, 6:48 PM MDT | Areal Flood Advisory | BOU | Douglas | 87 min |
| Aug 1, 2:49 PM MDT | Areal Flood Advisory | GJT | Garfield, Mesa | 3 hr |
| Aug 1, 4:34 PM MDT | Areal Flood Advisory | GJT | Delta, Mesa | 116 min |
| Aug 1, 8:37 PM MDT | Areal Flood Advisory | GJT | Garfield, Mesa | 3 hr |
| Aug 2, 1:17 PM MDT | Areal Flood Advisory | GJT | Mesa, Montrose | 118 min |
| Aug 2, 2:40 PM MDT | Areal Flood Advisory | BOU | Grand | 95 min |
| Aug 2, 3:38 PM MDT | Areal Flood Advisory | BOU | Grand | 82 min |
| Aug 2, 4:16 PM MDT | Areal Flood Advisory | BOU | Grand | 89 min |
| Aug 2, 5:08 PM MDT | Areal Flood Advisory | BOU | Boulder, Grand | 82 min |
| Aug 2, 5:14 PM MDT | Areal Flood Advisory | BOU | Larimer | 91 min |
| Aug 2, 5:18 PM MDT | Areal Flood Advisory | BOU | Park | 87 min |
| Aug 2, 5:40 PM MDT | Areal Flood Advisory | BOU | Boulder, Grand, Larimer | 95 min |
| Aug 2, 5:57 PM MDT | Areal Flood Advisory | BOU | Larimer | 93 min |
| Aug 2, 7:44 PM MDT | Areal Flood Advisory | GJT | Garfield, Mesa | 2 hr |
| Aug 2, 8:21 PM MDT | Areal Flood Advisory | GJT | Mesa | 114 min |
| Aug 3, 8:10 AM MDT | Areal Flood Advisory | BOU | Grand | 3 hr |
| Aug 3, 9:32 AM MDT | Areal Flood Advisory | GJT | Eagle | 3 hr |
| Aug 3, 2:22 PM MDT | Areal Flood Advisory | BOU | Douglas, Jefferson | 113 min |
| Aug 3, 3:48 PM MDT | Areal Flood Advisory | BOU | Adams, Arapahoe, Elbert | 87 min |
| Aug 3, 8:39 PM MDT | Areal Flood Advisory | BOU | Larimer | 111 min |
| Aug 3, 8:51 PM MDT | Areal Flood Advisory | BOU | Boulder | 114 min |
| Aug 3, 9:07 PM MDT | Areal Flood Advisory | BOU | Jefferson | 83 min |
| Aug 6, 7:58 PM MDT | Areal Flood Advisory | BOU | Larimer | 2 hr |
| Aug 6, 10:06 PM MDT | Areal Flood Advisory | BOU | Larimer | 84 min |
| Aug 12, 10:51 PM MDT | Areal Flood Advisory | BOU | Washington | 84 min |
| Aug 12, 11:21 PM MDT | Areal Flood Advisory | BOU | Douglas | 20 min |
| Aug 13, 12:38 AM MDT | Areal Flood Advisory | BOU | Douglas, Jefferson | 82 min |
| Aug 13, 1:20 PM MDT | Areal Flood Advisory | BOU | Grand | 85 min |
| Aug 13, 1:42 PM MDT | Areal Flood Advisory | BOU | Grand | 2 hr |
| Aug 13, 3:36 PM MDT | Areal Flood Advisory | BOU | Grand | 69 min |
| Aug 13, 3:53 PM MDT | Areal Flood Advisory | BOU | Larimer | 2 hr |
| Aug 13, 6:10 PM MDT | Areal Flood Advisory | BOU | Grand | 99 min |
| Aug 14, 2:55 PM MDT | Areal Flood Advisory | BOU | Larimer | 96 min |
| Aug 15, 2:32 PM MDT | Areal Flood Advisory | BOU | Grand | 88 min |
| Aug 16, 4:06 PM MDT | Areal Flood Advisory | BOU | Grand | 18 min |
| Aug 16, 5:02 PM MDT | Areal Flood Advisory | BOU | Grand | 88 min |
| Aug 17, 2:07 PM MDT | Areal Flood Advisory | BOU | Larimer | 53 min |
| Aug 17, 4:04 PM MDT | Areal Flood Advisory | BOU | Larimer | 86 min |
| Aug 17, 6:35 PM MDT | Areal Flood Advisory | BOU | Jackson | 85 min |
| Aug 18, 2:20 PM MDT | Areal Flood Advisory | GJT | Dolores, Montezuma | 3 hr |
| Aug 18, 3:01 PM MDT | Areal Flood Advisory | BOU | Larimer | 13 min |
| Aug 18, 4:54 PM MDT | Areal Flood Advisory | BOU | Larimer | 81 min |
| Aug 19, 2:59 PM MDT | Areal Flood Advisory | BOU | Adams | 61 min |
| Aug 19, 3:55 PM MDT | Areal Flood Advisory | BOU | Arapahoe, Denver, Douglas | 22 min |
| Aug 19, 3:55 PM MDT | Areal Flood Advisory | GJT | Delta, Mesa, Montrose | 3 hr |
| Aug 19, 3:58 PM MDT | Areal Flood Advisory | BOU | Weld | 30 min |
| Aug 19, 4:06 PM MDT | Areal Flood Advisory | BOU | Logan | 54 min |
| Aug 19, 4:09 PM MDT | Areal Flood Advisory | GJT | Dolores, Mesa, Montrose, San Miguel | 3 hr |
| Aug 19, 4:10 PM MDT | Areal Flood Advisory | BOU | Phillips | 95 min |
| Aug 19, 4:31 PM MDT | Areal Flood Advisory | GJT | Delta, Eagle, Garfield, Gunnison, Mesa, Pitkin | 3 hr |
| Aug 19, 4:57 PM MDT | Areal Flood Advisory | BOU | Logan | 50 min |
| Aug 19, 6:43 PM MDT | Areal Flood Advisory | BOU | Phillips | 2 hr |
| Aug 20, 2:12 AM MDT | Areal Flood Advisory | BOU | Larimer | 93 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Grand County13
- Larimer County13
- Mesa County9
- Douglas County5
- Garfield County4
- Delta County3
- Montrose County3
- Boulder County3
- Jefferson County3
- Eagle County2
- Adams County2
- Arapahoe County2
- Dolores County2
- Logan County2
- Phillips County2
- Park County1
- Elbert County1
- Washington County1
- Jackson County1
- Montezuma County1
- Denver County1
- Weld County1
- San Miguel County1
- Gunnison County1
- Pitkin County1
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. Warning verification from the Mesonet's Cow. Rebuilt daily.