Alert archive / Colorado / Red Flag Warnings / 2021
Red Flag Warnings in Colorado, April 2021
38 red flag warnings in April 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 red flag warnings reaches back to 2005.
Red Flag Warnings by county
Each county as a circle sized by its count in April 2021. Tap one for its archive.
- Red Flag Warnings
- 38
- Busiest day
- April 7, 20214 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 4, 12:15 PM MDT | Red Flag Warning | PUB | Baca | 7 hr |
| Apr 4, 1:07 PM MDT | Red Flag Warning | GJT | Dolores, La Plata, Moffat, Montezuma, Rio Blanco, San Miguel | 32 hr |
| Apr 4, 3:15 PM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, El Paso, Fremont, Huerfano and 4 more | 29 hr |
| Apr 5, 2:20 PM MDT | Red Flag Warning | GJT | Archuleta, Dolores, Hinsdale, La Plata, Montezuma, San Juan and 1 more | 28 hr |
| Apr 5, 2:42 PM MDT | Red Flag Warning | PUB | Alamosa, Baca, Bent, Conejos, Costilla, Crowley and 10 more | 29 hr |
| Apr 6, 2:09 PM MDT | Red Flag Warning | GJT | Archuleta, Dolores, Hinsdale, La Plata, Montezuma, San Juan and 1 more | 30 hr |
| Apr 6, 2:45 PM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Rio Grande, Saguache | 29 hr |
| Apr 7, 2:20 PM MDT | Red Flag Warning | GJT | Archuleta, Delta, Dolores, Garfield, Hinsdale, La Plata and 8 more | 31 hr |
| Apr 7, 2:29 PM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson, Yuma | 28 hr |
| Apr 7, 2:49 PM MDT | Red Flag Warning | BOU | Adams, Arapahoe, Elbert, Larimer, Lincoln, Logan and 5 more | 28 hr |
| Apr 7, 2:55 PM MDT | Red Flag Warning | PUB | Alamosa, Baca, Bent, Conejos, Costilla, Crowley and 9 more | 29 hr |
| Apr 8, 2:28 AM MDT | Red Flag Warning | GJT | Archuleta, Dolores, Hinsdale, La Plata, Montezuma, San Juan and 1 more | 43 hr |
| Apr 8, 8:16 PM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Fremont, Pueblo, Rio Grande and 1 more | 24 hr |
| Apr 9, 2:08 PM MDT | Red Flag Warning | GJT | Moffat, Rio Blanco | 31 hr |
| Apr 10, 1:57 AM MDT | Red Flag Warning | GJT | Archuleta, Dolores, Hinsdale, La Plata, Montezuma, San Juan and 1 more | 42 hr |
| Apr 10, 4:04 AM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Rio Grande, Saguache | 16 hr |
| Apr 10, 2:47 PM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Fremont, Pueblo, Rio Grande and 1 more | 29 hr |
| Apr 11, 2:49 PM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Rio Grande, Saguache | 29 hr |
| Apr 13, 2:27 PM MDT | Red Flag Warning | GJT | Archuleta, Delta, Dolores, Garfield, Hinsdale, La Plata and 6 more | 31 hr |
| Apr 14, 2:12 PM MDT | Red Flag Warning | GJT | Archuleta, Dolores, Hinsdale, La Plata, Montezuma, San Juan and 1 more | 29 hr |
| Apr 14, 3:03 PM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Rio Grande, Saguache | 29 hr |
| Apr 18, 3:44 AM MDT | Red Flag Warning | GJT | Archuleta, Delta, Dolores, Garfield, Hinsdale, La Plata and 8 more | 41 hr |
| Apr 20, 3:12 AM MDT | Red Flag Warning | GJT | Archuleta, Dolores, Hinsdale, La Plata, Montezuma, San Juan and 1 more | 18 hr |
| Apr 20, 3:12 AM MDT | Red Flag Warning | GJT | Archuleta, Dolores, Hinsdale, La Plata, Montezuma, Montrose and 2 more | 43 hr |
| Apr 22, 4:19 AM MDT | Red Flag Warning | PUB | Baca, Bent, Las Animas, Otero | 16 hr |
| Apr 23, 2:44 AM MDT | Red Flag Warning | GJT | Archuleta, Delta, Dolores, Garfield, Hinsdale, La Plata and 8 more | 41 hr |
| Apr 23, 2:35 PM MDT | Red Flag Warning | GJT | Archuleta, Delta, Dolores, Garfield, Hinsdale, La Plata and 8 more | 57 hr |
| Apr 23, 2:58 PM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Huerfano, Las Animas, Rio Grande and 1 more | 29 hr |
| Apr 24, 1:58 PM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson | 29 hr |
| Apr 24, 3:05 PM MDT | Red Flag Warning | PUB | Alamosa, Baca, Bent, Chaffee, Conejos, Costilla and 13 more | 29 hr |
| Apr 24, 3:17 PM MDT | Red Flag Warning | BOU | Elbert, Lincoln | 29 hr |
| Apr 25, 2:10 AM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson, Yuma | 42 hr |
| Apr 25, 3:50 AM MDT | Red Flag Warning | PUB | Alamosa, Baca, Bent, Chaffee, Conejos, Costilla and 14 more | 40 hr |
| Apr 25, 9:06 AM MDT | Red Flag Warning | GJT | Archuleta, Delta, Dolores, Garfield, Hinsdale, La Plata and 8 more | 35 hr |
| Apr 25, 1:53 PM MDT | Red Flag Warning | BOU | Elbert, Lincoln, Logan, Phillips, Sedgwick, Washington | 30 hr |
| Apr 26, 2:55 PM MDT | Red Flag Warning | PUB | Baca, Bent, Crowley, Huerfano, Kiowa, Las Animas and 3 more | 29 hr |
| Apr 30, 1:39 PM MDT | Red Flag Warning | GJT | Moffat, Rio Blanco | 29 hr |
| Apr 30, 2:48 PM MDT | Red Flag Warning | PUB | Baca, Kiowa, Prowers | 29 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Dolores County14
- La Plata County14
- Montezuma County14
- San Miguel County14
- Archuleta County13
- Hinsdale County13
- San Juan County13
- Alamosa County12
- Conejos County12
- Costilla County12
- Rio Grande County12
- Saguache County12
- Baca County8
- Moffat County8
- Rio Blanco County8
- Pueblo County8
- Fremont County7
- Huerfano County7
- Las Animas County7
- Montrose County7
- Bent County6
- Otero County6
- Prowers County6
- Delta County6
- Garfield County6
- Mesa County6
- Ouray County6
- El Paso County5
- Crowley County5
- Kiowa County5
- Custer County3
- Cheyenne County3
- Kit Carson County3
- Elbert County3
- Lincoln County3
- Yuma County2
- Logan County2
- Phillips County2
- Sedgwick County2
- Washington County2
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.