Alert archive / Colorado / 2023
Weather alerts in Colorado, September 2023
153 weather alerts in September 2023, 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 2023. Tap one for its archive.
- Alerts
- 153
- Warnings
- 23
- Watches
- 8
- Advisories
- 21
- Busiest day
- September 30, 202326 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 |
|---|---|---|---|---|
| Sep 1, 6:35 PM MDT | Special Weather Statement | GJT | 25 min | |
| Sep 3, 3:39 AM MDT | Fire Weather Watch | PUB | Huerfano, Las Animas, Pueblo | 11 hr |
| Sep 3, 11:47 AM MDT | Special Weather Statement | GJT | Rio Blanco | 43 min |
| Sep 3, 12:24 PM MDT | Special Weather Statement | GJT | Routt | 51 min |
| Sep 3, 1:04 PM MDT | Special Weather Statement | PUB | Huerfano | 26 min |
| Sep 3, 1:11 PM MDT | Special Weather Statement | GJT | Routt | 49 min |
| Sep 3, 1:43 PM MDT | Areal Flood Advisory | BOU | Larimer | 2 hr |
| Sep 3, 1:56 PM MDT | Flash Flood Warning | BOU | Larimer | 2 hr |
| Sep 3, 2:03 PM MDT | Special Weather Statement | BOU | Douglas | 27 min |
| Sep 3, 2:23 PM MDT | Areal Flood Advisory | BOU | Jefferson | 82 min |
| Sep 3, 2:27 PM MDT | Special Weather Statement | GJT | Routt | 33 min |
| Sep 3, 2:37 PM MDT | Special Weather Statement | BOU | Denver | 38 min |
| Sep 3, 2:38 PM MDT | Red Flag Warning | PUB | Baca, Bent, Crowley, Huerfano, Kiowa, Las Animas and 3 more | 29 hr |
| Sep 3, 3:03 PM MDT | Special Weather Statement | BOU | Boulder | 27 min |
| Sep 3, 3:14 PM MDT | Special Weather Statement | BOU | Adams | 31 min |
| Sep 3, 3:53 PM MDT | Special Weather Statement | BOU | Adams | 37 min |
| Sep 3, 4:30 PM MDT | Special Weather Statement | BOU | Douglas | 45 min |
| Sep 3, 4:55 PM MDT | Special Weather Statement | PUB | Pueblo | 35 min |
| Sep 3, 4:57 PM MDT | Special Weather Statement | BOU | Denver | 33 min |
| Sep 3, 5:38 PM MDT | Areal Flood Advisory | BOU | Grand | 112 min |
| Sep 3, 7:21 PM MDT | Special Weather Statement | BOU | Douglas | 24 min |
| Sep 4, 10:25 AM MDT | Red Flag Warning | GLD | Cheyenne, Kit Carson | 10 hr |
| Sep 4, 1:09 PM MDT | Special Weather Statement | GJT | Rio Blanco | 36 min |
| Sep 4, 1:25 PM MDT | Severe Thunderstorm Warning | GJT | Rio Blanco | 35 min |
| Sep 4, 1:53 PM MDT | Severe Thunderstorm Warning | GJT | Moffat, Rio Blanco, Routt | 17 min |
| Sep 4, 2:04 PM MDT | Areal Flood Advisory | GJT | Rio Blanco | 116 min |
| Sep 4, 2:07 PM MDT | Severe Thunderstorm Warning | GJT | Garfield, Rio Blanco | 23 min |
| Sep 4, 2:45 PM MDT | Special Weather Statement | BOU | Jackson | 30 min |
| Sep 4, 3:21 PM MDT | Special Weather Statement | BOU | Larimer | 39 min |
| Sep 4, 6:01 PM MDT | Special Weather Statement | BOU | Weld | 29 min |
| Sep 4, 6:04 PM MDT | Special Weather Statement | BOU | Phillips, Sedgwick | 26 min |
| Sep 4, 6:36 PM MDT | Special Weather Statement | BOU | Phillips, Sedgwick | 24 min |
| Sep 9, 3:47 PM MDT | Mesoscale Discussion | SPC | Baca, Prowers | 88 min |
| Sep 9, 4:46 PM MDT | Severe Thunderstorm Watch | SPC | Cheyenne | 6 hr |
| Sep 9, 4:58 PM MDT | Special Weather Statement | GLD | Cheyenne | 32 min |
| Sep 9, 5:08 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 52 min |
| Sep 9, 5:55 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 35 min |
| Sep 9, 6:26 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 31 min |
| Sep 10, 8:00 AM MDT | Special Weather Statement | GLD | Cheyenne | 30 min |
| Sep 10, 2:06 PM MDT | Mesoscale Discussion | SPC | Boulder, Broomfield, Clear Creek, Denver, Douglas, Gilpin and 3 more | 114 min |
| Sep 10, 2:13 PM MDT | Mesoscale Discussion | SPC | Baca, Prowers | 3 hr |
| Sep 10, 2:55 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Bent, Cheyenne, Kiowa, Las Animas, Otero and 1 more | 7 hr |
| Sep 10, 3:17 PM MDT | Special Weather Statement | GLD | Cheyenne | 28 min |
| Sep 10, 3:26 PM MDT | Special Weather Statement | PUB | Fremont | 34 min |
| Sep 10, 3:34 PM MDT | Special Weather Statement | PUB | Huerfano | 26 min |
| Sep 10, 5:38 PM MDT | Special Weather Statement | PUB | Prowers | 37 min |
| Sep 10, 6:08 PM MDT | Special Weather Statement | PUB | Baca | 37 min |
| Sep 10, 6:12 PM MDT | Special Weather Statement | GJT | Rio Blanco | 33 min |
| Sep 12, 1:06 AM MDT | Dense Fog Advisory | GLD | Cheyenne, Kit Carson, Yuma | 8 hr |
| Sep 12, 2:19 AM MDT | Dense Fog Advisory | PUB | Bent, Crowley, El Paso, Kiowa, Otero, Prowers and 1 more | 8 hr |
| Sep 12, 1:01 PM MDT | Areal Flood Advisory | GJT | Montezuma | 119 min |
| Sep 12, 1:30 PM MDT | Special Weather Statement | GJT | Dolores | 30 min |
| Sep 12, 2:41 PM MDT | Special Weather Statement | GJT | Montezuma | 34 min |
| Sep 13, 3:36 PM MDT | Special Weather Statement | PUB | Huerfano | 24 min |
| Sep 13, 5:07 PM MDT | Special Weather Statement | GJT | Moffat | 23 min |
| Sep 13, 5:26 PM MDT | Areal Flood Advisory | GJT | Garfield, Rio Blanco | 2 hr |
| Sep 13, 6:26 PM MDT | Areal Flood Advisory | GJT | Montrose | 2 hr |
| Sep 14, 2:03 PM MDT | Special Weather Statement | GJT | Mesa | 27 min |
| Sep 14, 2:37 PM MDT | Special Weather Statement | BOU | Phillips, Sedgwick | 38 min |
| Sep 14, 2:45 PM MDT | Flash Flood Warning | BOU | Larimer | 3 hr |
| Sep 14, 3:09 PM MDT | Areal Flood Advisory | BOU | Boulder, Jefferson | 59 min |
| Sep 14, 3:11 PM MDT | Flash Flood Warning | BOU | Larimer | 3 hr |
| Sep 14, 3:20 PM MDT | Special Weather Statement | BOU | Phillips | 40 min |
| Sep 14, 3:45 PM MDT | Areal Flood Advisory | BOU | Adams, Broomfield, Jefferson | 70 min |
| Sep 14, 3:45 PM MDT | Special Weather Statement | GLD | Kit Carson | 30 min |
| Sep 14, 4:00 PM MDT | Severe Thunderstorm Warning | BOU | Sedgwick | 22 min |
| Sep 14, 4:15 PM MDT | Special Weather Statement | GLD | Yuma | 30 min |
| Sep 14, 4:24 PM MDT | Special Weather Statement | BOU | Denver | 51 min |
| Sep 14, 4:30 PM MDT | Areal Flood Advisory | BOU | Adams | 98 min |
| Sep 14, 4:48 PM MDT | Special Weather Statement | GLD | Yuma | 27 min |
| Sep 14, 4:54 PM MDT | Areal Flood Advisory | BOU | Arapahoe | 96 min |
| Sep 14, 5:09 PM MDT | Areal Flood Advisory | BOU | Adams, Denver | 111 min |
| Sep 14, 5:34 PM MDT | Flash Flood Warning | GLD | Yuma | 86 min |
| Sep 14, 6:00 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe | 26 min |
| Sep 14, 6:15 PM MDT | Areal Flood Advisory | BOU | Douglas, Elbert | 2 hr |
| Sep 14, 7:04 PM MDT | Special Weather Statement | PUB | El Paso | 41 min |
| Sep 14, 7:50 PM MDT | Special Weather Statement | PUB | Crowley | 25 min |
| Sep 15, 2:25 PM MDT | Special Weather Statement | GJT | San Miguel | 35 min |
| Sep 15, 4:28 PM MDT | Special Weather Statement | GJT | Mesa | 32 min |
| Sep 15, 4:59 PM MDT | Special Weather Statement | GJT | Mesa | 31 min |
| Sep 15, 5:29 PM MDT | Special Weather Statement | GJT | Mesa | 31 min |
| Sep 15, 5:39 PM MDT | Areal Flood Advisory | BOU | Grand | 111 min |
| Sep 18, 2:33 PM MDT | Special Weather Statement | GJT | 27 min | |
| Sep 18, 2:59 PM MDT | Special Weather Statement | ABQ | Montezuma | 31 min |
| Sep 18, 3:05 PM MDT | Severe Thunderstorm Warning | GJT | Montrose, San Miguel | 25 min |
| Sep 18, 3:29 PM MDT | Severe Thunderstorm Warning | GJT | Montrose, San Miguel | 31 min |
| Sep 18, 3:45 PM MDT | Special Weather Statement | GJT | Montezuma | 30 min |
| Sep 18, 3:47 PM MDT | Special Weather Statement | GJT | San Miguel | 28 min |
| Sep 18, 4:12 PM MDT | Special Weather Statement | GJT | Montezuma | 33 min |
| Sep 18, 4:15 PM MDT | Special Weather Statement | GJT | Montrose | 30 min |
| Sep 18, 4:47 PM MDT | Special Weather Statement | GJT | La Plata | 28 min |
| Sep 18, 6:11 PM MDT | Special Weather Statement | BOU | Douglas | 49 min |
| Sep 18, 7:39 PM MDT | Special Weather Statement | GJT | Dolores | 36 min |
| Sep 19, 12:58 PM MDT | Special Weather Statement | GJT | 32 min | |
| Sep 19, 1:17 PM MDT | Special Weather Statement | GJT | Eagle | 28 min |
| Sep 19, 1:21 PM MDT | Special Weather Statement | GJT | 24 min | |
| Sep 19, 1:33 PM MDT | Special Weather Statement | GJT | 27 min | |
| Sep 19, 1:45 PM MDT | Special Weather Statement | GJT | Garfield | 30 min |
| Sep 19, 1:48 PM MDT | Special Weather Statement | GJT | Garfield | 27 min |
| Sep 19, 1:57 PM MDT | Special Weather Statement | GJT | 33 min | |
| Sep 19, 2:18 PM MDT | Areal Flood Advisory | GJT | Garfield, Rio Blanco | 57 min |
| Sep 19, 2:24 PM MDT | Special Weather Statement | GJT | Mineral | 36 min |
| Sep 19, 2:29 PM MDT | Special Weather Statement | GJT | 31 min | |
| Sep 19, 2:31 PM MDT | Special Weather Statement | GJT | La Plata | 29 min |
| Sep 19, 2:34 PM MDT | Flash Flood Watch | GJT | Eagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt | 2 hr |
| Sep 19, 2:35 PM MDT | Special Weather Statement | PUB | Conejos | 25 min |
| Sep 19, 2:38 PM MDT | Special Weather Statement | GJT | Garfield | 37 min |
| Sep 19, 3:12 PM MDT | Areal Flood Advisory | GJT | Montrose | 107 min |
| Sep 19, 3:12 PM MDT | Special Weather Statement | PUB | Conejos | 33 min |
| Sep 19, 4:20 PM MDT | Areal Flood Advisory | GJT | La Plata | 8 min |
| Sep 19, 4:21 PM MDT | Special Weather Statement | GJT | La Plata | 24 min |
| Sep 19, 4:28 PM MDT | Flash Flood Warning | GJT | La Plata | 95 min |
| Sep 20, 12:59 PM MDT | Special Weather Statement | BOU | Larimer | 46 min |
| Sep 20, 3:06 PM MDT | Fire Weather Watch | PUB | Baca, Bent, Chaffee, Costilla, Crowley, Custer and 11 more | 24 hr |
| Sep 20, 5:22 PM MDT | Special Weather Statement | BOU | Elbert | 23 min |
| Sep 21, 2:52 PM MDT | Red Flag Warning | PUB | Chaffee, Costilla, Custer, El Paso, Huerfano, Lake and 4 more | 28 hr |
| Sep 21, 5:04 PM MDT | Special Weather Statement | BOU | Weld | 26 min |
| Sep 22, 2:33 PM MDT | Freeze Warning | GJT | Moffat, Rio Blanco, Routt | 18 hr |
| Sep 22, 4:26 PM MDT | Mesoscale Discussion | SPC | Sedgwick | 2 hr |
| Sep 24, 2:45 PM MDT | Freeze Warning | PUB | Alamosa, Conejos, Costilla, Rio Grande | 17 hr |
| Sep 26, 1:52 PM MDT | Fire Weather Watch | GJT | Delta, Garfield, Mesa, Moffat, Montrose, Ouray and 2 more | 24 hr |
| Sep 26, 2:29 PM MDT | Frost Advisory | PUB | Alamosa, Conejos, Costilla, Rio Grande | 17 hr |
| Sep 27, 1:50 PM MDT | Fire Weather Watch | GJT | Delta, Garfield, Mesa, Moffat, Montrose, Ouray and 2 more | 24 hr |
| Sep 27, 1:50 PM MDT | Red Flag Warning | GJT | Delta, Garfield, Mesa, Moffat, Montrose, Ouray and 2 more | 30 hr |
| Sep 28, 1:41 PM MDT | Fire Weather Watch | GJT | Garfield, Mesa, Moffat, Montrose, Rio Blanco, San Miguel | 24 hr |
| Sep 28, 1:41 PM MDT | Red Flag Warning | GJT | Delta, Garfield, Mesa, Moffat, Montrose, Ouray and 2 more | 30 hr |
| Sep 29, 1:44 PM MDT | Red Flag Warning | GJT | Garfield, Mesa, Moffat, Montrose, Rio Blanco, San Miguel | 30 hr |
| Sep 30, 12:51 PM MDT | Special Weather Statement | PUB | Huerfano | 24 min |
| Sep 30, 1:14 PM MDT | Special Weather Statement | PUB | Huerfano | 46 min |
| Sep 30, 1:29 PM MDT | Special Weather Statement | PUB | Huerfano | 31 min |
| Sep 30, 2:14 PM MDT | Wind Advisory | GJT | Archuleta, Delta, Dolores, Gunnison, Hinsdale, La Plata and 6 more | 29 hr |
| Sep 30, 3:08 PM MDT | Special Weather Statement | PUB | Saguache | 37 min |
| Sep 30, 3:12 PM MDT | Special Weather Statement | PUB | Pueblo | 33 min |
| Sep 30, 3:22 PM MDT | Special Weather Statement | GLD | Yuma | 38 min |
| Sep 30, 3:28 PM MDT | Special Weather Statement | PUB | Fremont | 47 min |
| Sep 30, 3:37 PM MDT | Special Weather Statement | PUB | Pueblo | 23 min |
| Sep 30, 3:51 PM MDT | Special Weather Statement | PUB | El Paso | 24 min |
| Sep 30, 3:56 PM MDT | Mesoscale Discussion | SPC | Baca, Bent, Las Animas, Otero | 2 hr |
| Sep 30, 4:03 PM MDT | Special Weather Statement | PUB | Fremont | 27 min |
| Sep 30, 4:07 PM MDT | Special Weather Statement | PUB | El Paso | 23 min |
| Sep 30, 4:22 PM MDT | Special Weather Statement | GJT | Routt | 23 min |
| Sep 30, 4:24 PM MDT | Special Weather Statement | PUB | Las Animas | 36 min |
| Sep 30, 4:32 PM MDT | Special Weather Statement | PUB | El Paso | 28 min |
| Sep 30, 4:47 PM MDT | Special Weather Statement | BOU | Douglas | 28 min |
| Sep 30, 4:47 PM MDT | Special Weather Statement | PUB | Las Animas | 43 min |
| Sep 30, 4:49 PM MDT | Special Weather Statement | BOU | Park | 26 min |
| Sep 30, 4:53 PM MDT | Special Weather Statement | PUB | Fremont | 37 min |
| Sep 30, 4:55 PM MDT | Special Weather Statement | PUB | El Paso | 35 min |
| Sep 30, 5:14 PM MDT | Special Weather Statement | GJT | Mineral | 31 min |
| Sep 30, 5:25 PM MDT | Special Weather Statement | PUB | Custer | 35 min |
| Sep 30, 5:29 PM MDT | Special Weather Statement | BOU | Elbert | 46 min |
| Sep 30, 5:31 PM MDT | Special Weather Statement | BOU | Douglas | 29 min |
| Sep 30, 5:31 PM MDT | Special Weather Statement | GJT | Archuleta | 29 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 | 10 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 96 |
| Flooding | |
| Flash Flood Warning | 5 |
| Flash Flood Watch | 1 |
| Areal Flood Advisory | 17 |
| Cold | |
| Freeze Warning | 2 |
| Frost Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 6 |
| Fire Weather Watch | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Rio Blanco County17
- Garfield County13
- Montrose County12
- Mesa County11
- San Miguel County11
- Huerfano County10
- Cheyenne County10
- Moffat County10
- Las Animas County8
- Pueblo County8
- Douglas County8
- El Paso County8
- Routt County7
- Larimer County7
- Baca County7
- Prowers County7
- Montezuma County6
- La Plata County6
- Denver County5
- Bent County5
- Otero County5
- Adams County5
- Sedgwick County5
- Fremont County5
- Yuma County5
- Delta County5
- Ouray County5
- Jefferson County4
- Crowley County4
- Kiowa County4
- Phillips County4
- Conejos County4
- Costilla County4
- Boulder County3
- Kit Carson County3
- Dolores County3
- Elbert County3
- Custer County3
- Saguache County3
- Grand County2
19 more counties
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.