Red Flag Warnings in Colorado
2,540 red flag warnings since 1986. 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 since 1986. Tap one for its archive.
- Red Flag Warnings
- 2,540
- Busiest year
- 2026210 red flag warnings
- Average year
- 121over 21 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Las Animas County692
- Huerfano County646
- Pueblo County624
- Saguache County551
- Costilla County541
- El Paso County537
- Conejos County467
- Rio Grande County467
- Alamosa County450
- Baca County450
- Fremont County440
- San Miguel County426
- Otero County419
- Kit Carson County418
- Cheyenne County410
- Crowley County397
- Bent County385
- La Plata County374
- Dolores County372
- Montezuma County372
- Prowers County372
- Elbert County357
- Kiowa County356
- Garfield County344
- Mesa County344
- Yuma County330
- Lincoln County322
- Douglas County317
- Custer County316
- Moffat County315
- Montrose County302
- Rio Blanco County293
- Arapahoe County292
- Park County261
- Teller County258
- Delta County254
- Ouray County253
- Jefferson County249
- Boulder County245
- Larimer County242
24 more counties
- Weld County229
- Adams County219
- Clear Creek County202
- Gilpin County202
- Hinsdale County201
- Washington County198
- Chaffee County187
- Lake County187
- Broomfield County186
- Eagle County182
- Pitkin County182
- Logan County175
- Denver County168
- Morgan County166
- Phillips County154
- Sedgwick County154
- Gunnison County153
- Grand County122
- Routt County119
- Archuleta County117
- San Juan County117
- Summit County116
- Mineral County114
- Jackson County109
The latest red flag warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 12:55 PM MDT | Red Flag Warning | PUB | Fremont, Pueblo | 31 hr |
| Aug 5, 9:41 PM MDT | Red Flag Warning | GJT | Delta, Gunnison, Hinsdale, Montrose, Ouray | 22 hr |
| Aug 5, 12:39 PM MDT | Red Flag Warning | PUB | Chaffee, Conejos, Lake, Mineral, Rio Grande, Saguache | 30 hr |
| Aug 4, 12:33 PM MDT | Red Flag Warning | PUB | Chaffee, Lake | 30 hr |
| Aug 4, 12:20 PM MDT | Red Flag Warning | BOU | Boulder, Clear Creek, Gilpin, Grand, Jackson, Larimer and 2 more | 31 hr |
| Aug 4, 12:19 PM MDT | Red Flag Warning | GJT | Delta, Eagle, Garfield, Gunnison, Hinsdale, Mesa and 1 more | 32 hr |
| Aug 3, 12:01 PM MDT | Red Flag Warning | GJT | Dolores, Eagle, Garfield, La Plata, Mesa, Moffat and 5 more | 31 hr |
| Aug 3, 11:55 AM MDT | Red Flag Warning | BOU | Grand, Jackson, Summit | 31 hr |
| Aug 2, 10:10 PM MDT | Red Flag Warning | GJT | Dolores, La Plata, Montezuma, San Miguel | 22 hr |
| Jul 2, 1:43 PM MDT | Red Flag Warning | BOU | Park | 29 hr |
| Jul 2, 12:46 PM MDT | Red Flag Warning | GJT | Delta, Dolores, Gunnison, Hinsdale, La Plata, Montezuma and 3 more | 31 hr |
| Jul 2, 12:40 AM MDT | Red Flag Warning | PUB | Alamosa, Chaffee, Conejos, Costilla, Custer, El Paso and 9 more | 47 hr |
Nearby
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.