Alert archive / Colorado / 2012
Weather alerts in Colorado, September 2012
96 weather alerts in September 2012, 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 September 2012. Tap one for its archive.
- Alerts
- 96
- Warnings
- 41
- Watches
- 8
- Advisories
- 17
- Busiest day
- September 27, 201230 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 |
|---|---|---|---|---|
| Aug 31, 8:12 PM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson, Yuma | 23 hr |
| Sep 1, 3:43 AM MDT | Red Flag Warning | BOU | Adams, Arapahoe, Elbert, Lincoln, Logan, Morgan and 4 more | 15 hr |
| Sep 1, 2:31 PM MDT | Mesoscale Discussion | SPC | Dolores, Montezuma, San Miguel | 89 min |
| Sep 1, 3:15 PM MDT | Special Weather Statement | GJT | Montezuma | 45 min |
| Sep 1, 4:56 PM MDT | Severe Thunderstorm Warning | GJT | Moffat, Rio Blanco | 49 min |
| Sep 1, 5:51 PM MDT | Special Weather Statement | GJT | Moffat | 39 min |
| Sep 1, 6:10 PM MDT | Special Weather Statement | GJT | 50 min | |
| Sep 1, 6:34 PM MDT | Special Weather Statement | GJT | Moffat | 41 min |
| Sep 1, 7:04 PM MDT | Severe Thunderstorm Warning | GJT | Moffat, Rio Blanco, Routt | 41 min |
| Sep 1, 7:16 PM MDT | Special Weather Statement | GJT | 44 min | |
| Sep 3, 10:46 AM MDT | Special Weather Statement | BOU | Grand | 59 min |
| Sep 3, 12:48 PM MDT | Special Weather Statement | BOU | Boulder | 42 min |
| Sep 3, 1:45 PM MDT | Special Weather Statement | BOU | Weld | 45 min |
| Sep 3, 3:28 PM MDT | Special Weather Statement | BOU | Grand | 47 min |
| Sep 3, 4:58 PM MDT | Special Weather Statement | BOU | Boulder | 32 min |
| Sep 3, 5:42 PM MDT | Special Weather Statement | BOU | Broomfield, Denver, Weld | 63 min |
| Sep 5, 2:48 PM MDT | Red Flag Warning | GJT | Moffat, Rio Blanco | 27 hr |
| Sep 6, 6:29 PM MDT | Red Flag Warning | GJT | Moffat, Rio Blanco | 91 min |
| Sep 7, 2:36 AM MDT | Wind Advisory | GLD | Cheyenne | 8 hr |
| Sep 8, 1:58 PM MDT | Fire Weather Watch | GLD | Cheyenne, Kit Carson, Yuma | 11 hr |
| Sep 8, 2:44 PM MDT | Fire Weather Watch | BOU | Adams, Arapahoe, Broomfield, Denver, Douglas, Elbert and 7 more | 13 hr |
| Sep 9, 1:13 AM MDT | Red Flag Warning | GLD | Kit Carson, Yuma | 19 hr |
| Sep 9, 3:43 AM MDT | Red Flag Warning | BOU | Adams, Arapahoe, Elbert, Lincoln, Logan, Morgan and 4 more | 15 hr |
| Sep 11, 10:30 AM MDT | Flash Flood Watch | PUB | El Paso, Fremont, Teller | 31 hr |
| Sep 11, 2:47 PM MDT | Winter Storm Watch | PUB | Alamosa, Chaffee, Costilla, Custer, El Paso, Fremont and 5 more | 12 hr |
| Sep 11, 7:57 PM MDT | Flash Flood Watch | GJT | Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 9 more | 23 hr |
| Sep 12, 2:17 AM MDT | Winter Weather Advisory | PUB | Alamosa, Chaffee, Costilla, Custer, El Paso, Fremont and 5 more | 15 hr |
| Sep 12, 7:22 AM MDT | Areal Flood Advisory | PUB | El Paso | 3 hr |
| Sep 12, 7:31 AM MDT | Areal Flood Advisory | PUB | El Paso | 3 hr |
| Sep 12, 8:47 AM MDT | Flash Flood Warning | PUB | El Paso | 6 hr |
| Sep 12, 10:59 AM MDT | Areal Flood Advisory | PUB | Fremont | 6 hr |
| Sep 12, 2:25 PM MDT | Areal Flood Advisory | PUB | El Paso | 3 hr |
| Sep 13, 4:17 AM MDT | Frost Advisory | PUB | Alamosa, Conejos, Costilla, Rio Grande, Saguache | 28 hr |
| Sep 14, 12:25 PM MDT | Frost Advisory | PUB | Alamosa, Conejos, Costilla, Rio Grande, Saguache | 20 hr |
| Sep 15, 2:47 PM MDT | Frost Advisory | PUB | Alamosa, Conejos, Costilla, Rio Grande, Saguache | 17 hr |
| Sep 16, 11:33 AM MDT | Red Flag Warning | GLD | Kit Carson, Yuma | 8 hr |
| Sep 18, 2:16 PM MDT | Fire Weather Watch | GLD | Cheyenne, Kit Carson, Yuma | 13 hr |
| Sep 19, 3:05 AM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson, Yuma | 16 hr |
| Sep 25, 1:37 PM MDT | Areal Flood Advisory | PUB | El Paso | 76 min |
| Sep 26, 12:50 PM MDT | Mesoscale Discussion | SPC | Baca, Bent, Prowers | 55 min |
| Sep 26, 2:23 PM MDT | Severe Thunderstorm Warning | PUB | Las Animas, Otero | 56 min |
| Sep 26, 2:36 PM MDT | Severe Thunderstorm Warning | PUB | Baca, Las Animas | 54 min |
| Sep 26, 2:59 PM MDT | Severe Thunderstorm Watch | SPC | Baca | 7 hr |
| Sep 26, 3:30 PM MDT | Severe Thunderstorm Warning | PUB | Baca, Las Animas | 60 min |
| Sep 26, 3:31 PM MDT | Severe Thunderstorm Warning | PUB | Las Animas | 44 min |
| Sep 26, 3:56 PM MDT | Severe Thunderstorm Warning | PUB | Las Animas | 31 min |
| Sep 26, 4:26 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 48 min |
| Sep 26, 4:33 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 33 min |
| Sep 26, 5:37 PM MDT | Special Weather Statement | GLD | Kit Carson | 23 min |
| Sep 26, 5:46 PM MDT | Flash Flood Warning | BOU | Weld | 2 hr |
| Sep 26, 5:57 PM MDT | Areal Flood Advisory | BOU | Weld | 93 min |
| Sep 26, 6:15 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 60 min |
| Sep 26, 6:20 PM MDT | Areal Flood Advisory | BOU | Weld | 85 min |
| Sep 26, 6:45 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 30 min |
| Sep 26, 6:48 PM MDT | Flash Flood Warning | BOU | Weld | 2 hr |
| Sep 26, 6:54 PM MDT | Special Weather Statement | GLD | Cheyenne | 36 min |
| Sep 26, 6:56 PM MDT | Special Weather Statement | GLD | Kit Carson | 34 min |
| Sep 26, 7:05 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 55 min |
| Sep 26, 7:23 PM MDT | Special Weather Statement | GLD | Kit Carson | 37 min |
| Sep 26, 7:32 PM MDT | Special Weather Statement | GLD | Cheyenne | 28 min |
| Sep 26, 7:59 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 61 min |
| Sep 26, 8:09 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 66 min |
| Sep 26, 9:00 PM MDT | Special Weather Statement | GLD | Cheyenne | 30 min |
| Sep 26, 9:14 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 47 min |
| Sep 26, 9:22 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 53 min |
| Sep 26, 10:44 PM MDT | Special Weather Statement | GLD | Cheyenne | 31 min |
| Sep 26, 11:00 PM MDT | Special Weather Statement | GLD | Kit Carson | 60 min |
| Sep 27, 1:15 PM MDT | Tornado Warning | BOU | Douglas | 29 min |
| Sep 27, 1:29 PM MDT | Tornado Warning | BOU | Elbert | 31 min |
| Sep 27, 2:09 PM MDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Baca, Bent, Cheyenne, Crowley and 17 more | 66 min |
| Sep 27, 2:18 PM MDT | Tornado Warning | PUB | El Paso, Teller | 27 min |
| Sep 27, 2:32 PM MDT | Areal Flood Advisory | PUB | El Paso | 56 min |
| Sep 27, 3:50 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 40 min |
| Sep 27, 4:10 PM MDT | Severe Thunderstorm Warning | PUB | Crowley, El Paso, Pueblo | 65 min |
| Sep 27, 4:34 PM MDT | Severe Thunderstorm Warning | PUB | Las Animas | 56 min |
| Sep 27, 4:40 PM MDT | Areal Flood Advisory | BOU | Washington | 80 min |
| Sep 27, 4:43 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 52 min |
| Sep 27, 4:59 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Bent, Crowley, Kiowa, Las Animas, Otero and 1 more | 7 hr |
| Sep 27, 5:00 PM MDT | Special Weather Statement | BOU | Weld | 30 min |
| Sep 27, 5:09 PM MDT | Severe Thunderstorm Warning | PUB | Crowley, Kiowa, Otero | 66 min |
| Sep 27, 5:13 PM MDT | Severe Thunderstorm Warning | PUB | Crowley, Otero, Pueblo | 62 min |
| Sep 27, 6:03 PM MDT | Special Weather Statement | GLD | Cheyenne, Kit Carson | 42 min |
| Sep 27, 6:06 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Crowley, Kiowa, Otero | 54 min |
| Sep 27, 6:29 PM MDT | Tornado Warning | PUB | Bent, Otero | 46 min |
| Sep 27, 6:44 PM MDT | Special Weather Statement | GLD | Cheyenne, Kit Carson | 61 min |
| Sep 27, 6:59 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa, Prowers | 44 min |
| Sep 27, 7:10 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Kiowa, Las Animas, Otero, Prowers | 33 min |
| Sep 27, 8:18 PM MDT | Mesoscale Discussion | SPC | Baca, Prowers | 57 min |
| Sep 27, 8:19 PM MDT | Severe Thunderstorm Warning | PUB | Baca, Bent, Prowers | 24 min |
| Sep 27, 8:34 PM MDT | Areal Flood Advisory | PUB | Bent, Prowers | 85 min |
| Sep 27, 8:42 PM MDT | Areal Flood Advisory | PUB | Bent, Otero | 77 min |
| Sep 28, 8:50 AM MDT | Dense Fog Advisory | BOU | Logan, Morgan, Weld | 2 hr |
| Sep 29, 3:36 PM MDT | Special Weather Statement | BOU | Elbert | 24 min |
| Sep 30, 2:33 PM MDT | Special Weather Statement | GLD | Yuma | 27 min |
| Sep 30, 2:53 PM MDT | Special Weather Statement | GLD | Kit Carson | 37 min |
| Sep 30, 3:38 PM MDT | Special Weather Statement | GLD | Cheyenne | 37 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 26 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 4 |
| Special Weather Statement | 26 |
| Flooding | |
| Flash Flood Warning | 3 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 11 |
| Winter | |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 1 |
| Cold | |
| Frost Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 8 |
| Fire Weather Watch | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Kit Carson County18
- Cheyenne County16
- Weld County13
- El Paso County13
- Las Animas County11
- Baca County9
- Bent County9
- Otero County9
- Yuma County8
- Prowers County8
- Kiowa County7
- Elbert County6
- Moffat County6
- Crowley County6
- Logan County5
- Morgan County5
- Washington County5
- Alamosa County5
- Costilla County5
- Saguache County5
- Adams County4
- Arapahoe County4
- Lincoln County4
- Phillips County4
- Rio Blanco County4
- Fremont County4
- Teller County4
- Pueblo County4
- Sedgwick County3
- Montezuma County3
- Denver County3
- Douglas County3
- Conejos County3
- Rio Grande County3
- Dolores County2
- San Miguel County2
- Grand County2
- Boulder County2
- Broomfield County2
- Chaffee County2
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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.