Alert archive / Colorado / 2021
Weather alerts in Colorado, March 2021
87 weather alerts in March 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in March 2021. Tap one for its archive.
- Alerts
- 87
- Warnings
- 28
- Watches
- 19
- Advisories
- 23
- Busiest day
- March 28, 20218 alerts
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 |
|---|---|---|---|---|
| Mar 3, 3:10 AM MST | Winter Weather Advisory | GJT | Archuleta, Dolores, Hinsdale, La Plata, Montezuma, San Juan and 1 more | 34 hr |
| Mar 3, 3:50 AM MST | Winter Weather Advisory | PUB | Conejos, Costilla, Custer, El Paso, Fremont, Huerfano and 5 more | 48 hr |
| Mar 3, 2:40 PM MST | Winter Weather Advisory | BOU | Arapahoe, Boulder, Clear Creek, Douglas, Elbert, Gilpin and 6 more | 33 hr |
| Mar 5, 1:42 AM MST | Fire Weather Watch | GLD | Cheyenne, Kit Carson, Yuma | 24 hr |
| Mar 5, 1:46 PM MST | Red Flag Warning | GLD | Cheyenne, Kit Carson, Yuma | 28 hr |
| Mar 5, 2:51 PM MST | Red Flag Warning | BOU | Logan, Phillips, Sedgwick, Washington | 27 hr |
| Mar 7, 3:50 AM MST | Fire Weather Watch | PUB | Baca, Bent, Crowley, El Paso, Huerfano, Las Animas and 3 more | 11 hr |
| Mar 7, 2:54 PM MST | Fire Weather Watch | PUB | Baca, Bent, Crowley, El Paso, Huerfano, Kiowa and 4 more | 24 hr |
| Mar 7, 2:54 PM MST | Red Flag Warning | PUB | Baca, Bent, Crowley, El Paso, Huerfano, Kiowa and 4 more | 27 hr |
| Mar 8, 2:55 PM MST | Fire Weather Watch | PUB | Baca, Bent, Crowley, El Paso, Fremont, Huerfano and 5 more | 25 hr |
| Mar 8, 2:55 PM MST | Red Flag Warning | PUB | Baca, Bent, Crowley, El Paso, Fremont, Huerfano and 5 more | 27 hr |
| Mar 9, 2:09 AM MST | Fire Weather Watch | GLD | Cheyenne, Kit Carson | 17 hr |
| Mar 9, 2:40 AM MST | Winter Weather Advisory | BOU | Boulder, Grand, Jackson, Larimer | 38 hr |
| Mar 9, 2:51 AM MST | Winter Weather Advisory | GJT | Moffat, Routt | 38 hr |
| Mar 9, 2:53 AM MST | Fire Weather Watch | BOU | Elbert, Lincoln | 12 hr |
| Mar 9, 2:32 PM MST | Red Flag Warning | BOU | Elbert, Lincoln | 26 hr |
| Mar 9, 3:28 PM MST | Red Flag Warning | PUB | Baca, Bent, Crowley, El Paso, Fremont, Huerfano and 5 more | 27 hr |
| Mar 9, 6:27 PM MST | Special Weather Statement | GJT | Dolores | 48 min |
| Mar 9, 6:48 PM MST | Red Flag Warning | GLD | Cheyenne, Kit Carson | 23 hr |
| Mar 10, 9:36 AM MST | High Wind Warning | PUB | Baca, Bent, Crowley, Custer, El Paso, Fremont and 6 more | 7 hr |
| Mar 10, 10:05 AM MST | Snow Squall Warning | GJT | Routt | 55 min |
| Mar 10, 2:40 PM MST | Winter Storm Watch | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 16 more | 48 hr |
| Mar 11, 3:22 AM MST | Winter Storm Watch | GJT | Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more | 24 hr |
| Mar 11, 3:55 AM MST | Winter Storm Watch | PUB | Alamosa, Chaffee, Conejos, Costilla, Custer, El Paso and 9 more | 35 hr |
| Mar 11, 10:20 AM MST | Red Flag Warning | PUB | Las Animas | 8 hr |
| Mar 11, 2:29 PM MST | Winter Storm Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 11 more | 4 days |
| Mar 11, 2:57 PM MST | Winter Storm Warning | PUB | Alamosa, Chaffee, Costilla, Custer, El Paso, Fremont and 6 more | 3 days |
| Mar 12, 3:47 AM MST | Winter Storm Warning | GJT | Delta, Eagle, Garfield, Gunnison, Hinsdale, Montrose and 3 more | 3 days |
| Mar 12, 3:47 AM MST | Winter Weather Advisory | GJT | Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 11 more | 3 days |
| Mar 12, 4:26 AM MST | Winter Weather Advisory | PUB | Chaffee, Conejos, Huerfano, Las Animas, Mineral, Pueblo and 2 more | 64 hr |
| Mar 12, 2:17 PM MST | Winter Weather Advisory | BOU | Elbert, Grand, Jackson, Lincoln, Logan, Park and 2 more | 63 hr |
| Mar 12, 2:39 PM MST | Winter Weather Advisory | GLD | Cheyenne, Kit Carson, Yuma | 18 hr |
| Mar 13, 1:57 AM MST | Special Weather Statement | PUB | Prowers | 33 min |
| Mar 13, 7:59 AM MST | Special Weather Statement | PUB | Prowers | 31 min |
| Mar 13, 12:22 PM MST | Mesoscale Discussion | SPC | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 12 more | 4 hr |
| Mar 13, 7:15 PM MST | Mesoscale Discussion | SPC | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 11 more | 6 hr |
| Mar 13, 7:27 PM MST | Special Weather Statement | GLD | Kit Carson | 48 min |
| Mar 13, 7:39 PM MST | Mesoscale Discussion | SPC | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 11 more | 6 hr |
| Mar 14, 1:55 AM MST | Mesoscale Discussion | SPC | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 5 more | 6 hr |
| Mar 14, 9:21 AM MDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 7 more | 4 hr |
| Mar 14, 12:19 PM MDT | Blizzard Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 4 more | 12 hr |
| Mar 14, 12:32 PM MDT | Blizzard Warning | PUB | El Paso | 11 hr |
| Mar 15, 3:56 AM MDT | Winter Storm Watch | PUB | Alamosa, Baca, Chaffee, Costilla, Custer, Fremont and 4 more | 31 hr |
| Mar 15, 2:41 PM MDT | Dense Fog Advisory | BOU | Adams, Arapahoe, Broomfield, Denver, Douglas, Elbert and 5 more | 25 min |
| Mar 15, 3:07 PM MDT | Dense Fog Advisory | BOU | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 7 more | 19 hr |
| Mar 15, 9:36 PM MDT | Winter Storm Warning | PUB | Alamosa, Chaffee, Costilla, Custer, Fremont, Huerfano and 3 more | 34 hr |
| Mar 15, 9:36 PM MDT | Winter Weather Advisory | PUB | Bent, Conejos, Costilla, Custer, Fremont, Mineral and 6 more | 34 hr |
| Mar 16, 10:38 AM MDT | Blizzard Warning | PUB | Baca, Las Animas | 21 hr |
| Mar 16, 12:52 PM MDT | Special Weather Statement | GJT | Mesa | 38 min |
| Mar 17, 3:38 AM MDT | Mesoscale Discussion | SPC | Baca | 6 hr |
| Mar 19, 2:01 PM MDT | Wind Advisory | GJT | Garfield, Mesa, Moffat, Rio Blanco, Routt | 31 hr |
| Mar 20, 6:25 AM MDT | Special Weather Statement | BOU | Weld | 65 min |
| Mar 20, 2:11 PM MDT | Winter Storm Watch | BOU | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 2 more | 13 hr |
| Mar 20, 2:11 PM MDT | Winter Storm Warning | BOU | Arapahoe, Boulder, Clear Creek, Douglas, Elbert, Gilpin and 6 more | 44 hr |
| Mar 20, 2:32 PM MDT | Winter Weather Advisory | GJT | Eagle, Garfield, Pitkin | 32 hr |
| Mar 20, 2:52 PM MDT | Winter Storm Watch | PUB | Alamosa, Chaffee, Costilla, Custer, El Paso, Fremont and 5 more | 13 hr |
| Mar 21, 1:31 AM MDT | High Wind Warning | PUB | Huerfano | 8 hr |
| Mar 21, 2:43 AM MDT | Winter Weather Advisory | BOU | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 5 more | 31 hr |
| Mar 21, 4:02 AM MDT | Winter Storm Warning | PUB | Custer, El Paso, Fremont, Huerfano, Pueblo, Teller | 31 hr |
| Mar 21, 4:02 AM MDT | Winter Weather Advisory | PUB | Alamosa, Chaffee, Costilla, Custer, El Paso, Fremont and 5 more | 35 hr |
| Mar 22, 12:27 PM MDT | Mesoscale Discussion | SPC | Cheyenne, Kiowa | 3 hr |
| Mar 22, 2:43 PM MDT | Winter Weather Advisory | GJT | Archuleta, Dolores, Gunnison, Hinsdale, La Plata, Montezuma and 4 more | 51 hr |
| Mar 22, 2:57 PM MDT | Winter Storm Watch | PUB | Conejos, Costilla, Huerfano, Las Animas, Mineral, Rio Grande | 13 hr |
| Mar 22, 2:57 PM MDT | Winter Weather Advisory | PUB | Alamosa, Chaffee, Conejos, Costilla, Custer, El Paso and 8 more | 51 hr |
| Mar 23, 3:55 AM MDT | Winter Storm Warning | PUB | Costilla, Huerfano, Las Animas | 38 hr |
| Mar 23, 9:11 PM MDT | Winter Weather Advisory | BOU | Arapahoe, Douglas, Elbert | 11 hr |
| Mar 24, 9:35 PM MDT | Winter Weather Advisory | GJT | Archuleta, Delta, Dolores, Garfield, Hinsdale, La Plata and 6 more | 40 hr |
| Mar 24, 9:37 PM MDT | Winter Weather Advisory | PUB | Conejos, Mineral, Rio Grande | 40 hr |
| Mar 26, 12:12 PM MDT | Special Weather Statement | PUB | El Paso | 18 min |
| Mar 26, 3:46 PM MDT | Special Weather Statement | GJT | Mesa | 44 min |
| Mar 26, 5:30 PM MDT | Special Weather Statement | GLD | Kit Carson | 45 min |
| Mar 27, 3:57 AM MDT | Dense Fog Advisory | BOU | Larimer, Morgan, Weld | 4 hr |
| Mar 27, 5:51 AM MDT | Special Weather Statement | BOU | Adams, Denver, Washington | 54 min |
| Mar 27, 1:31 PM MDT | Fire Weather Watch | BOU | Elbert, Lincoln | 22 hr |
| Mar 27, 2:06 PM MDT | Fire Weather Watch | GLD | Cheyenne, Kit Carson | 23 hr |
| Mar 27, 2:51 PM MDT | Fire Weather Watch | PUB | Baca, Bent, Crowley, El Paso, Huerfano, Kiowa and 4 more | 20 hr |
| Mar 28, 10:47 AM MDT | Red Flag Warning | PUB | Alamosa, Baca, Bent, Conejos, Costilla, Crowley and 10 more | 33 hr |
| Mar 28, 11:00 AM MDT | High Wind Watch | PUB | Alamosa, Chaffee, Costilla, Custer, El Paso, Fremont and 4 more | 10 hr |
| Mar 28, 11:58 AM MDT | Red Flag Warning | BOU | Elbert, Lincoln, Logan, Morgan, Phillips, Sedgwick and 1 more | 31 hr |
| Mar 28, 12:57 PM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson, Yuma | 31 hr |
| Mar 28, 1:00 PM MDT | High Wind Watch | GLD | Cheyenne, Kit Carson, Yuma | 25 hr |
| Mar 28, 2:08 PM MDT | High Wind Watch | BOU | Boulder, Clear Creek, Douglas, Elbert, Gilpin, Grand and 12 more | 19 hr |
| Mar 28, 2:12 PM MDT | Wind Advisory | GJT | Delta, Eagle, Garfield, Gunnison, Mesa, Moffat and 4 more | 30 hr |
| Mar 28, 2:58 PM MDT | High Wind Warning | PUB | Alamosa, Chaffee, Costilla, Custer, El Paso, Fremont and 5 more | 27 hr |
| Mar 28, 8:44 PM MDT | High Wind Warning | BOU | Boulder, Clear Creek, Douglas, Gilpin, Grand, Jackson and 4 more | 19 hr |
| Mar 30, 2:00 PM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Rio Grande, Saguache | 5 hr |
| Mar 31, 5:36 PM MDT | Red Flag Warning | PUB | Baca, Las Animas, Prowers | 25 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 10 |
| Winter | |
| Blizzard Warning | 3 |
| Snow Squall Warning | 1 |
| Winter Storm Warning | 7 |
| Winter Storm Watch | 7 |
| Winter Weather Advisory | 18 |
| Wind and dust | |
| High Wind Warning | 4 |
| High Wind Watch | 3 |
| Wind Advisory | 2 |
| Fire | |
| Red Flag Warning | 13 |
| Fire Weather Watch | 9 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Las Animas County25
- Huerfano County24
- El Paso County23
- Fremont County20
- Pueblo County20
- Douglas County17
- Elbert County17
- Boulder County16
- Costilla County15
- Arapahoe County15
- Jefferson County15
- Larimer County15
- Custer County13
- Teller County13
- Baca County13
- Adams County13
- Denver County13
- Weld County13
- Saguache County13
- Prowers County12
- Broomfield County12
- Gilpin County11
- Park County11
- Morgan County11
- Alamosa County11
- Clear Creek County10
- Grand County10
- Kit Carson County10
- Bent County10
- Otero County10
- Chaffee County10
- Conejos County9
- Rio Grande County9
- Jackson County9
- Cheyenne County9
- Crowley County9
- Kiowa County9
- Lincoln County9
- Summit County8
- Logan County8
24 more counties
- Washington County8
- Mineral County7
- Garfield County7
- Mesa County7
- Dolores County6
- Hinsdale County6
- San Miguel County6
- Routt County6
- Montrose County6
- Archuleta County5
- La Plata County5
- Montezuma County5
- San Juan County5
- Yuma County5
- Moffat County5
- Delta County5
- Eagle County5
- Gunnison County5
- Ouray County5
- Lake County5
- Phillips County4
- Sedgwick County4
- Pitkin County4
- Rio Blanco County4
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.