Alert archive / Colorado / Red Flag Warnings / 2025

Red Flag Warnings in Colorado, August 2025

21 red flag warnings in August 2025. 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 red flag warnings reaches back to 2005.

Red Flag Warnings by county

Each county as a circle sized by its count in August 2025. Tap one for its archive.

Red Flag Warnings
21
Busiest day
August 4, 20254 red flag 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.

IssuedProductOfficeCountiesLasted
Aug 1, 3:33 AM MDTRed Flag WarningGJTMoffat, Rio Blanco15 hr
Aug 1, 1:22 PM MDTRed Flag WarningGJTDolores, Garfield, La Plata, Mesa, Moffat, Montezuma and 3 more30 hr
Aug 3, 1:18 PM MDTRed Flag WarningGJTDelta, Dolores, Eagle, Garfield, Gunnison, Hinsdale and 9 more32 hr
Aug 4, 1:48 AM MDTRed Flag WarningGJTDelta, Dolores, Eagle, Garfield, Gunnison, Hinsdale and 9 more42 hr
Aug 4, 1:33 PM MDTRed Flag WarningGJTGarfield, Mesa, Moffat, Montrose, Rio Blanco, Routt and 1 more54 hr
Aug 4, 2:09 PM MDTRed Flag WarningBOUBoulder, Clear Creek, Gilpin, Grand, Jackson, Larimer and 2 more30 hr
Aug 4, 2:52 PM MDTRed Flag WarningPUBChaffee, Lake29 hr
Aug 5, 2:04 PM MDTRed Flag WarningBOUBoulder, Grand, Jackson, Larimer, Summit30 hr
Aug 5, 2:25 PM MDTRed Flag WarningGJTDelta, Dolores, Eagle, Garfield, Gunnison, Hinsdale and 10 more54 hr
Aug 5, 2:25 PM MDTRed Flag WarningGJTDelta, Dolores, Eagle, Garfield, Gunnison, Hinsdale and 10 more3 days
Aug 6, 3:14 AM MDTRed Flag WarningPUBAlamosa, Chaffee, Conejos, Costilla, Fremont, Lake and 2 more41 hr
Aug 6, 2:47 PM MDTRed Flag WarningBOUGrand, Jackson, Park, Summit29 hr
Aug 7, 3:15 AM MDTRed Flag WarningPUBAlamosa, Chaffee, Conejos, Costilla, Fremont, Lake and 2 more41 hr
Aug 7, 9:07 AM MDTRed Flag WarningBOUBoulder, Clear Creek, Douglas, Gilpin, Grand, Jackson and 4 more35 hr
Aug 7, 1:21 PM MDTRed Flag WarningGJTDelta, Dolores, Eagle, Garfield, Gunnison, Hinsdale and 10 more55 hr
Aug 8, 1:22 AM MDTRed Flag WarningPUBAlamosa, Chaffee, Conejos, Costilla, Lake, Rio Grande and 1 more43 hr
Aug 10, 2:13 AM MDTRed Flag WarningGJTDolores, La Plata, Montezuma, San Miguel19 hr
Aug 12, 2:12 PM MDTRed Flag WarningGJTEagle, Garfield, Mesa, Moffat, Pitkin, Rio Blanco and 1 more30 hr
Aug 13, 1:05 PM MDTRed Flag WarningGJTArchuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more31 hr
Aug 13, 2:41 PM MDTRed Flag WarningPUBChaffee, Conejos, Costilla, Custer, Fremont, Huerfano and 6 more29 hr
Aug 13, 2:50 PM MDTRed Flag WarningBOUBoulder, Clear Creek, Douglas, Gilpin, Grand, Jackson and 4 more29 hr

By county

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

1 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive20242026

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.