Alert archive / Colorado / Red Flag Warnings
Red Flag Warnings in Colorado, 2025
129 red flag warnings in 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 2025. Tap one for its archive.
- Red Flag Warnings
- 129
- Busiest month
- April30 red flag warnings
- Busiest day
- March 16, 20256 red flag 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 |
|---|---|---|---|---|
| Jan 3, 7:16 PM MST | Red Flag Warning | PUB | Huerfano, Las Animas | 21 hr |
| Feb 4, 1:58 PM MST | Red Flag Warning | PUB | Baca, Huerfano, Las Animas | 28 hr |
| Feb 6, 2:31 PM MST | Red Flag Warning | PUB | Huerfano, Las Animas | 27 hr |
| Feb 13, 3:04 AM MST | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Rio Grande, Saguache | 15 hr |
| Feb 25, 2:27 PM MST | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Rio Grande, Saguache | 28 hr |
| Mar 2, 2:47 AM MST | Red Flag Warning | PUB | Baca, Bent, Crowley, El Paso, Huerfano, Kiowa and 4 more | 40 hr |
| Mar 2, 2:10 PM MST | Red Flag Warning | BOU | Elbert, Lincoln | 28 hr |
| Mar 3, 12:04 AM MST | Red Flag Warning | GLD | Cheyenne | 20 hr |
| Mar 5, 2:23 PM MST | Red Flag Warning | PUB | Baca, Bent, Huerfano, Las Animas, Otero, Prowers | 28 hr |
| Mar 9, 2:03 PM MDT | Red Flag Warning | BOU | Larimer, Logan, Phillips, Sedgwick, Weld | 29 hr |
| Mar 9, 2:39 PM MDT | Red Flag Warning | PUB | Chaffee, Crowley, El Paso, Fremont, Huerfano, Kiowa and 3 more | 27 hr |
| Mar 12, 2:30 AM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson, Yuma | 41 hr |
| Mar 12, 3:02 AM MDT | Red Flag Warning | PUB | Baca, Bent, Crowley, El Paso, Huerfano, Kiowa and 4 more | 41 hr |
| Mar 12, 1:05 PM MDT | Red Flag Warning | BOU | Elbert, Lincoln, Phillips, Sedgwick, Washington | 30 hr |
| Mar 13, 11:54 AM MDT | Red Flag Warning | PUB | Crowley, El Paso, Huerfano, Las Animas, Otero, Pueblo | 30 hr |
| Mar 15, 2:22 PM MDT | Red Flag Warning | PUB | Crowley, El Paso, Huerfano, Kiowa, Las Animas, Pueblo | 29 hr |
| Mar 16, 1:03 AM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson, Yuma | 18 hr |
| Mar 16, 2:48 AM MDT | Red Flag Warning | BOU | Elbert, Lincoln, Logan, Phillips, Sedgwick, Washington and 1 more | 16 hr |
| Mar 16, 3:18 AM MDT | Red Flag Warning | PUB | Alamosa, Baca, Bent, Conejos, Costilla, Crowley and 11 more | 65 hr |
| Mar 16, 3:18 AM MDT | Red Flag Warning | PUB | Baca, Bent, Crowley, El Paso, Kiowa, Las Animas and 3 more | 65 hr |
| Mar 16, 1:54 PM MDT | Red Flag Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 13 more | 29 hr |
| Mar 16, 2:11 PM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson, Yuma | 29 hr |
| Mar 17, 1:26 PM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson, Yuma | 31 hr |
| Mar 17, 7:00 PM MDT | Red Flag Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 9 more | 24 hr |
| Mar 19, 2:13 PM MDT | Red Flag Warning | PUB | Alamosa, Baca, Bent, Conejos, Costilla, Crowley and 12 more | 33 hr |
| Mar 19, 5:10 PM MDT | Red Flag Warning | GLD | Cheyenne | 26 hr |
| Mar 20, 2:30 AM MDT | Red Flag Warning | BOU | Elbert, Lincoln, Park | 17 hr |
| Mar 21, 2:12 PM MDT | Red Flag Warning | PUB | Bent, Crowley, El Paso, Huerfano, Las Animas, Otero and 1 more | 30 hr |
| Mar 21, 3:09 PM MDT | Red Flag Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 7 more | 29 hr |
| Mar 27, 2:05 PM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, El Paso, Fremont, Huerfano and 4 more | 30 hr |
| Mar 28, 2:20 PM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Huerfano, Las Animas, Rio Grande and 1 more | 30 hr |
| Mar 30, 3:06 AM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Huerfano, Las Animas, Otero and 3 more | 42 hr |
| Mar 31, 2:51 AM MDT | Red Flag Warning | GLD | Cheyenne | 39 hr |
| Mar 31, 3:31 AM MDT | Red Flag Warning | PUB | Baca, Bent, Crowley, El Paso, Huerfano, Kiowa and 4 more | 40 hr |
| Apr 1, 3:12 AM MDT | Red Flag Warning | BOU | Elbert, Lincoln | 16 hr |
| Apr 1, 2:23 PM MDT | Red Flag Warning | PUB | Fremont, Huerfano, Las Animas, Pueblo | 28 hr |
| Apr 8, 2:36 AM MDT | Red Flag Warning | BOU | Logan, Weld | 16 hr |
| Apr 8, 2:01 PM MDT | Red Flag Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 10 more | 29 hr |
| Apr 8, 2:15 PM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Huerfano, Rio Grande, Saguache | 29 hr |
| Apr 9, 2:05 AM MDT | Red Flag Warning | GLD | Kit Carson, Yuma | 16 hr |
| Apr 11, 2:02 PM MDT | Red Flag Warning | PUB | Alamosa, Chaffee, Conejos, Costilla, Crowley, Custer and 10 more | 31 hr |
| Apr 11, 2:18 PM MDT | Red Flag Warning | GJT | Delta, Eagle, Garfield, Mesa, Montrose, Ouray and 1 more | 30 hr |
| Apr 11, 2:45 PM MDT | Red Flag Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 8 more | 29 hr |
| Apr 12, 1:57 AM MDT | Red Flag Warning | GJT | Delta, Montrose, Ouray | 42 hr |
| Apr 12, 2:03 PM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Crowley, Custer, El Paso and 7 more | 30 hr |
| Apr 13, 1:38 AM MDT | Red Flag Warning | BOU | Park | 18 hr |
| Apr 15, 2:24 PM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Fremont, Huerfano, Las Animas and 3 more | 30 hr |
| Apr 16, 3:10 AM MDT | Red Flag Warning | PUB | Alamosa, Bent, Conejos, Costilla, Crowley, Custer and 10 more | 42 hr |
| Apr 16, 1:19 PM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson | 32 hr |
| Apr 16, 2:07 PM MDT | Red Flag Warning | GJT | Delta, Dolores, Eagle, Garfield, La Plata, Mesa and 5 more | 30 hr |
| Apr 16, 2:13 PM MDT | Red Flag Warning | BOU | Arapahoe, Clear Creek, Douglas, Elbert, Gilpin, Jefferson and 2 more | 29 hr |
| Apr 20, 12:58 PM MDT | Red Flag Warning | BOU | Elbert, Lincoln, Logan, Morgan, Phillips, Sedgwick and 2 more | 30 hr |
| Apr 20, 1:30 PM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson, Yuma | 31 hr |
| Apr 20, 2:03 PM MDT | Red Flag Warning | GJT | Delta, Garfield, Mesa, Montrose, Ouray | 30 hr |
| Apr 24, 2:04 AM MDT | Red Flag Warning | GJT | Delta, Dolores, Eagle, Garfield, La Plata, Mesa and 5 more | 42 hr |
| Apr 24, 2:19 PM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Rio Grande, Saguache | 30 hr |
| Apr 25, 2:52 AM MDT | Red Flag Warning | GJT | Delta, Dolores, Eagle, Garfield, La Plata, Mesa and 5 more | 41 hr |
| Apr 25, 2:38 PM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Rio Grande, Saguache | 29 hr |
| Apr 26, 2:05 AM MDT | Red Flag Warning | GJT | Delta, Dolores, Eagle, Garfield, La Plata, Mesa and 5 more | 42 hr |
| Apr 26, 1:23 PM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson, Yuma | 30 hr |
| Apr 26, 1:58 PM MDT | Red Flag Warning | BOU | Adams, Arapahoe, Broomfield, Denver, Douglas, Elbert and 5 more | 30 hr |
| Apr 26, 2:33 PM MDT | Red Flag Warning | PUB | Alamosa, Bent, Conejos, Costilla, Crowley, El Paso and 8 more | 30 hr |
| Apr 27, 1:05 AM MDT | Red Flag Warning | PUB | Alamosa, Bent, Conejos, Costilla, Crowley, El Paso and 7 more | 43 hr |
| Apr 27, 10:39 AM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson | 32 hr |
| May 21, 2:29 PM MDT | Red Flag Warning | GJT | Garfield, Mesa | 30 hr |
| May 22, 3:19 AM MDT | Red Flag Warning | GJT | Delta, Garfield, Gunnison, Hinsdale, Mesa, Montrose and 1 more | 41 hr |
| May 23, 1:29 PM MDT | Red Flag Warning | GJT | Delta, Garfield, Gunnison, Hinsdale, Mesa, Montrose and 1 more | 31 hr |
| Jun 14, 2:27 PM MDT | Red Flag Warning | GJT | Moffat, Rio Blanco | 30 hr |
| Jun 15, 1:44 PM MDT | Red Flag Warning | GJT | Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more | 30 hr |
| Jun 16, 8:26 AM MDT | Red Flag Warning | PUB | Conejos, Mineral, Rio Grande, Saguache | 13 hr |
| Jun 16, 9:15 AM MDT | Red Flag Warning | GJT | Archuleta, Delta, Dolores, Gunnison, Hinsdale, La Plata and 5 more | 35 hr |
| Jun 16, 2:01 PM MDT | Red Flag Warning | PUB | Chaffee, Conejos, Lake, Mineral, Rio Grande, Saguache | 31 hr |
| Jun 18, 2:26 PM MDT | Red Flag Warning | GJT | Delta, Dolores, Garfield, La Plata, Mesa, Moffat and 5 more | 30 hr |
| Jun 19, 1:29 AM MDT | Red Flag Warning | PUB | Chaffee, Conejos, Lake, Mineral, Rio Grande, Saguache | 45 hr |
| Jun 19, 1:36 AM MDT | Red Flag Warning | GJT | Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 11 more | 45 hr |
| Jun 19, 1:40 PM MDT | Red Flag Warning | GJT | Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 11 more | 56 hr |
| Jun 19, 1:50 PM MDT | Red Flag Warning | PUB | Chaffee, Conejos, Costilla, Custer, Huerfano, Lake and 5 more | 56 hr |
| Jun 20, 10:00 AM MDT | Red Flag Warning | BOU | Park | 11 hr |
| Jun 20, 10:00 AM MDT | Red Flag Warning | BOU | Park | 35 hr |
| Jun 20, 2:33 PM MDT | Red Flag Warning | PUB | Chaffee, Conejos, Costilla, Custer, Huerfano, Lake and 5 more | 55 hr |
| Jun 21, 1:24 AM MDT | Red Flag Warning | GJT | Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 11 more | 44 hr |
| Jun 22, 3:19 AM MDT | Red Flag Warning | BOU | Park | 17 hr |
| Jun 22, 2:03 PM MDT | Red Flag Warning | GJT | Delta, Eagle, Garfield, Mesa, Montrose, Ouray and 2 more | 30 hr |
| Jun 23, 1:28 AM MDT | Red Flag Warning | GJT | Eagle, Garfield, Mesa, Moffat, Montrose, Pitkin and 2 more | 43 hr |
| Jul 9, 2:11 AM MDT | Red Flag Warning | GJT | Delta, Dolores, Eagle, Garfield, Gunnison, Hinsdale and 7 more | 42 hr |
| Jul 9, 10:53 AM MDT | Red Flag Warning | PUB | Alamosa, Chaffee, Conejos, Costilla, Lake, Mineral and 2 more | 34 hr |
| Jul 10, 1:36 AM MDT | Red Flag Warning | BOU | Park | 18 hr |
| Jul 25, 1:04 PM MDT | Red Flag Warning | GJT | Delta, Dolores, Eagle, Garfield, La Plata, Mesa and 8 more | 31 hr |
| Jul 26, 2:27 AM MDT | Red Flag Warning | GJT | Delta, Eagle, Garfield, Mesa, Moffat, Montrose and 5 more | 42 hr |
| Jul 30, 2:07 PM MDT | Red Flag Warning | GJT | Moffat, Rio Blanco | 30 hr |
| Aug 1, 3:33 AM MDT | Red Flag Warning | GJT | Moffat, Rio Blanco | 15 hr |
| Aug 1, 1:22 PM MDT | Red Flag Warning | GJT | Dolores, Garfield, La Plata, Mesa, Moffat, Montezuma and 3 more | 30 hr |
| Aug 3, 1:18 PM MDT | Red Flag Warning | GJT | Delta, Dolores, Eagle, Garfield, Gunnison, Hinsdale and 9 more | 32 hr |
| Aug 4, 1:48 AM MDT | Red Flag Warning | GJT | Delta, Dolores, Eagle, Garfield, Gunnison, Hinsdale and 9 more | 42 hr |
| Aug 4, 1:33 PM MDT | Red Flag Warning | GJT | Garfield, Mesa, Moffat, Montrose, Rio Blanco, Routt and 1 more | 54 hr |
| Aug 4, 2:09 PM MDT | Red Flag Warning | BOU | Boulder, Clear Creek, Gilpin, Grand, Jackson, Larimer and 2 more | 30 hr |
| Aug 4, 2:52 PM MDT | Red Flag Warning | PUB | Chaffee, Lake | 29 hr |
| Aug 5, 2:04 PM MDT | Red Flag Warning | BOU | Boulder, Grand, Jackson, Larimer, Summit | 30 hr |
| Aug 5, 2:25 PM MDT | Red Flag Warning | GJT | Delta, Dolores, Eagle, Garfield, Gunnison, Hinsdale and 10 more | 54 hr |
| Aug 5, 2:25 PM MDT | Red Flag Warning | GJT | Delta, Dolores, Eagle, Garfield, Gunnison, Hinsdale and 10 more | 3 days |
| Aug 6, 3:14 AM MDT | Red Flag Warning | PUB | Alamosa, Chaffee, Conejos, Costilla, Fremont, Lake and 2 more | 41 hr |
| Aug 6, 2:47 PM MDT | Red Flag Warning | BOU | Grand, Jackson, Park, Summit | 29 hr |
| Aug 7, 3:15 AM MDT | Red Flag Warning | PUB | Alamosa, Chaffee, Conejos, Costilla, Fremont, Lake and 2 more | 41 hr |
| Aug 7, 9:07 AM MDT | Red Flag Warning | BOU | Boulder, Clear Creek, Douglas, Gilpin, Grand, Jackson and 4 more | 35 hr |
| Aug 7, 1:21 PM MDT | Red Flag Warning | GJT | Delta, Dolores, Eagle, Garfield, Gunnison, Hinsdale and 10 more | 55 hr |
| Aug 8, 1:22 AM MDT | Red Flag Warning | PUB | Alamosa, Chaffee, Conejos, Costilla, Lake, Rio Grande and 1 more | 43 hr |
| Aug 10, 2:13 AM MDT | Red Flag Warning | GJT | Dolores, La Plata, Montezuma, San Miguel | 19 hr |
| Aug 12, 2:12 PM MDT | Red Flag Warning | GJT | Eagle, Garfield, Mesa, Moffat, Pitkin, Rio Blanco and 1 more | 30 hr |
| Aug 13, 1:05 PM MDT | Red Flag Warning | GJT | Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more | 31 hr |
| Aug 13, 2:41 PM MDT | Red Flag Warning | PUB | Chaffee, Conejos, Costilla, Custer, Fremont, Huerfano and 6 more | 29 hr |
| Aug 13, 2:50 PM MDT | Red Flag Warning | BOU | Boulder, Clear Creek, Douglas, Gilpin, Grand, Jackson and 4 more | 29 hr |
| Oct 19, 12:24 PM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson, Yuma | 30 hr |
| Oct 19, 1:32 PM MDT | Red Flag Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 11 more | 28 hr |
| Oct 19, 2:04 PM MDT | Red Flag Warning | PUB | Bent, Crowley, El Paso, Fremont, Huerfano, Kiowa and 4 more | 28 hr |
| Oct 26, 1:56 PM MDT | Red Flag Warning | PUB | El Paso, Huerfano, Pueblo | 28 hr |
| Oct 27, 2:12 PM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Rio Grande, Saguache | 28 hr |
| Nov 6, 7:21 AM MST | Red Flag Warning | BOU | Boulder, Broomfield, Jefferson, Larimer, Weld | 10 hr |
| Dec 11, 8:16 AM MST | Red Flag Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 8 more | 9 hr |
| Dec 11, 10:38 AM MST | Red Flag Warning | PUB | El Paso, Huerfano, Las Animas, Pueblo | 6 hr |
| Dec 16, 3:06 AM MST | Red Flag Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 5 more | 39 hr |
| Dec 16, 3:27 AM MST | Red Flag Warning | PUB | Baca, Bent, Crowley, El Paso, Fremont, Huerfano and 5 more | 39 hr |
| Dec 17, 12:15 PM MST | Red Flag Warning | GLD | Cheyenne, Kit Carson, Yuma | 29 hr |
| Dec 17, 12:58 PM MST | Red Flag Warning | PUB | Baca, Bent, Kiowa, Prowers | 28 hr |
| Dec 18, 2:31 AM MST | Red Flag Warning | BOU | Logan, Morgan, Phillips, Sedgwick, Washington, Weld | 14 hr |
| Dec 18, 2:30 PM MST | Red Flag Warning | PUB | Baca, Bent, Crowley, El Paso, Fremont, Huerfano and 5 more | 28 hr |
| Dec 18, 2:44 PM MST | Red Flag Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 7 more | 33 hr |
| Dec 19, 6:02 PM MST | Red Flag Warning | PUB | El Paso, Fremont, Huerfano, Pueblo, Teller | 118 min |
| Dec 22, 1:48 AM MST | Red Flag Warning | BOU | Arapahoe, Boulder, Broomfield, Clear Creek, Douglas, Elbert and 5 more | 15 hr |
| Dec 22, 2:10 AM MST | Red Flag Warning | PUB | El Paso, Fremont, Huerfano, Pueblo, Teller | 15 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Huerfano County34
- Las Animas County30
- Pueblo County29
- Garfield County28
- Mesa County28
- Montrose County28
- Conejos County27
- Rio Grande County27
- Saguache County27
- Delta County25
- Ouray County25
- Costilla County24
- San Miguel County24
- El Paso County23
- Alamosa County21
- Eagle County21
- Pitkin County21
- Dolores County20
- Montezuma County20
- Moffat County20
- Rio Blanco County20
- Park County19
- Crowley County18
- La Plata County18
- Elbert County17
- Weld County17
- Fremont County17
- Bent County15
- Larimer County15
- Boulder County15
- Kiowa County14
- Prowers County14
- Lincoln County14
- Douglas County14
- Jefferson County14
- Gunnison County14
- Hinsdale County14
- Otero County13
- Cheyenne County13
- Chaffee County12
24 more counties
- Lake County12
- Arapahoe County12
- Broomfield County12
- Baca County11
- Kit Carson County11
- Clear Creek County11
- Gilpin County11
- Routt County11
- Teller County10
- Adams County10
- Denver County10
- Logan County9
- Yuma County9
- Washington County9
- Morgan County9
- Phillips County8
- Sedgwick County8
- Mineral County8
- Custer County7
- Archuleta County6
- San Juan County6
- Grand County5
- Jackson County5
- Summit County5
The busiest days
Days with the most alerts issued, by UTC date.
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.