Alert archive / Colorado / Flash Flood Watches / 2021

Flash Flood Watches in Colorado, July 2021

35 flash flood watches 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 watches reaches back to 2005.

Flash Flood Watches by county

Each county as a circle sized by its count in July 2021. Tap one for its archive.

Flash Flood Watches
35
Busiest day
July 5, 20214 flash flood watches

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.

IssuedProductOfficeCountiesLasted
Jul 1, 8:46 AM MDTFlash Flood WatchBOUAdams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 7 more12 hr
Jul 1, 11:34 AM MDTFlash Flood WatchGJTEagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt6 hr
Jul 2, 1:23 PM MDTFlash Flood WatchGJTEagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt6 hr
Jul 3, 2:04 PM MDTFlash Flood WatchGJTEagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt60 min
Jul 5, 2:39 AM MDTFlash Flood WatchPUBAlamosa, Chaffee, Costilla, Custer, Fremont, Huerfano and 4 more18 hr
Jul 5, 3:13 AM MDTFlash Flood WatchBOUBoulder, Grand, Jackson, Larimer, Summit21 hr
Jul 5, 4:28 PM MDTFlash Flood WatchGJTEagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt12 min
Jul 5, 5:52 PM MDTFlash Flood WatchGJTEagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt4 hr
Jul 6, 2:46 AM MDTFlash Flood WatchPUBAlamosa, Chaffee, Costilla, Custer, Fremont, Huerfano and 5 more22 hr
Jul 8, 4:04 PM MDTFlash Flood WatchGJTEagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt111 min
Jul 9, 2:44 PM MDTFlash Flood WatchGJTEagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt3 hr
Jul 13, 11:51 AM MDTFlash Flood WatchGJTEagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt3 hr
Jul 13, 4:59 PM MDTFlash Flood WatchGJTEagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt3 hr
Jul 14, 2:19 AM MDTFlash Flood WatchGJTArchuleta, Dolores, Eagle, Garfield, Gunnison, Hinsdale and 11 more18 hr
Jul 14, 3:14 AM MDTFlash Flood WatchPUBAlamosa, Chaffee, Conejos, Costilla, Custer, Fremont and 6 more18 hr
Jul 20, 12:37 PM MDTFlash Flood WatchGJTEagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt8 hr
Jul 21, 2:42 AM MDTFlash Flood WatchGJTArchuleta, Dolores, Eagle, Garfield, Gunnison, Hinsdale and 10 more21 hr
Jul 21, 2:57 AM MDTFlash Flood WatchPUBAlamosa, Chaffee, Conejos, Costilla, Custer, Fremont and 5 more19 hr
Jul 21, 3:18 AM MDTFlash Flood WatchBOUBoulder, Grand, Jackson, Larimer17 hr
Jul 21, 1:44 PM MDTFlash Flood WatchGJTArchuleta, Dolores, Eagle, Garfield, Gunnison, Hinsdale and 10 more34 hr
Jul 22, 2:54 AM MDTFlash Flood WatchPUBChaffee, Conejos, Lake, Mineral, Rio Grande, Saguache18 hr
Jul 22, 1:50 PM MDTFlash Flood WatchGJTArchuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 11 more36 hr
Jul 22, 2:15 PM MDTFlash Flood WatchBOUBoulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more30 hr
Jul 23, 3:06 AM MDTFlash Flood WatchPUBAlamosa, Chaffee, Conejos, Costilla, Custer, Fremont and 5 more19 hr
Jul 24, 3:51 AM MDTFlash Flood WatchGJTArchuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more17 hr
Jul 24, 3:53 AM MDTFlash Flood WatchPUBAlamosa, Chaffee, Conejos, Costilla, Custer, Fremont and 7 more17 hr
Jul 25, 1:02 PM MDTFlash Flood WatchGJTEagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt7 hr
Jul 26, 12:03 PM MDTFlash Flood WatchGJTDelta, Dolores, Eagle, Garfield, Mesa, Moffat and 6 more10 hr
Jul 28, 2:08 PM MDTFlash Flood WatchGJTEagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt8 hr
Jul 28, 2:28 PM MDTFlash Flood WatchGJTArchuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more34 hr
Jul 28, 2:28 PM MDTFlash Flood WatchGJTArchuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more58 hr
Jul 29, 2:03 PM MDTFlash Flood WatchBOUAdams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 10 more55 hr
Jul 30, 3:18 AM MDTFlash Flood WatchPUBChaffee, Lake, Saguache20 hr
Jul 30, 3:44 AM MDTFlash Flood WatchGJTArchuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more43 hr
Jul 30, 1:48 PM MDTFlash Flood WatchPUBAlamosa, Baca, Bent, Chaffee, Conejos, Costilla and 13 more40 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

13 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. Warning verification from the Mesonet's Cow. Rebuilt daily.