Alert archive / Colorado / 2009
Weather alerts in Colorado, September 2009
85 weather alerts in September 2009, 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 2009. Tap one for its archive.
- Alerts
- 85
- Warnings
- 40
- Watches
- 9
- Advisories
- 25
- Busiest day
- September 3, 200913 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, 6:11 PM MDT | Severe Thunderstorm Warning | BOU | Adams | 49 min |
| Sep 1, 5:43 PM MDT | Special Weather Statement | ABQ | Las Animas | 32 min |
| Sep 2, 6:21 AM MDT | Dense Fog Advisory | GLD | Yuma | 4 hr |
| Sep 2, 4:16 PM MDT | Special Weather Statement | BOU | Weld | 29 min |
| Sep 2, 4:46 PM MDT | Special Weather Statement | BOU | Morgan | 29 min |
| Sep 2, 6:03 PM MDT | Areal Flood Advisory | PUB | Pueblo | 117 min |
| Sep 2, 6:33 PM MDT | Special Weather Statement | BOU | Lincoln | 27 min |
| Sep 2, 6:40 PM MDT | Areal Flood Advisory | PUB | Pueblo | 110 min |
| Sep 2, 7:07 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 22 min |
| Sep 3, 4:40 AM MDT | Severe Thunderstorm Warning | PUB | Baca | 43 min |
| Sep 3, 1:02 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 58 min |
| Sep 3, 2:09 PM MDT | Severe Thunderstorm Warning | PUB | Crowley, Kiowa | 51 min |
| Sep 3, 2:13 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 27 min |
| Sep 3, 2:43 PM MDT | Mesoscale Discussion | SPC | Baca, Bent, Kiowa, Prowers | 2 hr |
| Sep 3, 2:58 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Crowley, Kiowa, Otero, Prowers | 62 min |
| Sep 3, 3:30 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Crowley, Kiowa, Otero | 60 min |
| Sep 3, 3:35 PM MDT | Tornado Warning | PUB | Crowley, Otero | 20 min |
| Sep 3, 4:31 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 37 min |
| Sep 4, 5:17 PM MDT | Severe Thunderstorm Warning | PUB | Custer, Fremont, Saguache | 58 min |
| Sep 4, 6:12 PM MDT | Areal Flood Advisory | PUB | Custer, Fremont | 106 min |
| Sep 5, 12:32 AM MDT | Dense Fog Advisory | GLD | Cheyenne, Kit Carson, Yuma | 9 hr |
| Sep 5, 3:56 PM MDT | Areal Flood Advisory | PUB | Las Animas | 2 hr |
| Sep 5, 4:48 PM MDT | Flash Flood Warning | BOU | Arapahoe | 104 min |
| Sep 6, 4:43 PM MDT | Areal Flood Advisory | PUB | El Paso | 94 min |
| Sep 6, 5:47 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 43 min |
| Sep 8, 1:53 PM MDT | Severe Thunderstorm Watch | SPC | Logan, Phillips, Sedgwick | 8 hr |
| Sep 8, 4:17 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln, Washington | 28 min |
| Sep 8, 4:25 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 35 min |
| Sep 8, 4:31 PM MDT | Areal Flood Advisory | BOU | Elbert | 75 min |
| Sep 8, 4:40 PM MDT | Areal Flood Advisory | PUB | El Paso | 65 min |
| Sep 8, 5:15 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Washington | 60 min |
| Sep 8, 5:17 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 28 min |
| Sep 8, 5:21 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 54 min |
| Sep 8, 5:58 PM MDT | Areal Flood Advisory | PUB | Prowers | 2 hr |
| Sep 8, 6:10 PM MDT | Mesoscale Discussion | SPC | Phillips, Sedgwick, Washington, Yuma | 2 hr |
| Sep 8, 6:18 PM MDT | Severe Thunderstorm Warning | PUB | Crowley, Kiowa | 39 min |
| Sep 8, 6:54 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 36 min |
| Sep 8, 7:16 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 44 min |
| Sep 8, 7:26 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson, Yuma | 64 min |
| Sep 8, 7:32 PM MDT | Areal Flood Advisory | BOU | Washington | 118 min |
| Sep 8, 8:27 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 63 min |
| Sep 8, 9:30 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 60 min |
| Sep 12, 5:14 PM MDT | Severe Thunderstorm Warning | GJT | Archuleta | 31 min |
| Sep 12, 5:47 PM MDT | Severe Thunderstorm Warning | GJT | Dolores, San Miguel | 28 min |
| Sep 12, 9:14 PM MDT | Areal Flood Advisory | PUB | El Paso | 3 hr |
| Sep 13, 4:40 PM MDT | Severe Thunderstorm Warning | BOU | Boulder, Gilpin, Jefferson | 50 min |
| Sep 14, 4:36 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 24 min |
| Sep 14, 4:55 PM MDT | Areal Flood Advisory | PUB | El Paso | 116 min |
| Sep 14, 5:27 PM MDT | Areal Flood Advisory | GJT | Eagle, Garfield | 3 hr |
| Sep 14, 6:06 PM MDT | Severe Thunderstorm Warning | PUB | Teller | 24 min |
| Sep 14, 6:40 PM MDT | Areal Flood Advisory | PUB | Teller | 3 hr |
| Sep 15, 12:46 PM MDT | Mesoscale Discussion | SPC | Delta, Dolores, Garfield, Mesa, Montrose, Ouray and 3 more | 89 min |
| Sep 15, 4:09 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 66 min |
| Sep 15, 4:40 PM MDT | Areal Flood Advisory | PUB | El Paso | 3 hr |
| Sep 16, 1:24 PM MDT | Areal Flood Advisory | PUB | El Paso | 2 hr |
| Sep 19, 3:17 PM MDT | Freeze Watch | GJT | Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 9 more | 36 hr |
| Sep 20, 3:01 PM MDT | Special Weather Statement | ABQ | Archuleta | 29 min |
| Sep 20, 3:17 PM MDT | Freeze Warning | GJT | Moffat, Rio Blanco, Routt | 14 hr |
| Sep 21, 2:51 AM MDT | Freeze Warning | GJT | Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 9 more | 30 hr |
| Sep 21, 4:49 AM MDT | Freeze Watch | PUB | Alamosa, Conejos, Costilla, Rio Grande, Saguache | 11 hr |
| Sep 21, 3:29 PM MDT | Freeze Warning | PUB | Alamosa, Conejos, Costilla, Rio Grande, Saguache | 18 hr |
| Sep 21, 9:07 PM MDT | Frost Advisory | PUB | El Paso, Huerfano, Las Animas | 12 hr |
| Sep 21, 9:21 PM MDT | Freeze Warning | BOU | Arapahoe, Douglas, Elbert, Lincoln | 7 hr |
| Sep 22, 4:31 AM MDT | Winter Storm Watch | BOU | Arapahoe, Boulder, Clear Creek, Douglas, Elbert, Gilpin and 6 more | 9 hr |
| Sep 22, 1:06 PM MDT | Winter Storm Warning | BOU | Boulder, Clear Creek, Douglas, Gilpin, Grand, Jackson and 4 more | 16 hr |
| Sep 22, 1:06 PM MDT | Winter Weather Advisory | BOU | Arapahoe, Douglas, Elbert | 16 hr |
| Sep 22, 3:33 PM MDT | Winter Weather Advisory | PUB | El Paso, Fremont, Teller | 13 hr |
| Sep 24, 10:21 AM MDT | Special Weather Statement | BOU | Washington | 24 min |
| Sep 24, 4:29 PM MDT | Special Weather Statement | BOU | Morgan | 31 min |
| Sep 24, 4:45 PM MDT | Special Weather Statement | BOU | Lincoln | 30 min |
| Sep 27, 3:05 PM MDT | Fire Weather Watch | GJT | Dolores, Eagle, Garfield, La Plata, Mesa, Moffat and 5 more | 24 hr |
| Sep 28, 3:28 PM MDT | Red Flag Warning | GJT | Dolores, Eagle, Garfield, La Plata, Mesa, Moffat and 5 more | 36 hr |
| Sep 29, 3:27 PM MDT | Fire Weather Watch | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 13 more | 14 hr |
| Sep 30, 3:47 AM MDT | Freeze Watch | GJT | Delta, Dolores, Eagle, Garfield, Gunnison, Mesa and 4 more | 11 hr |
| Sep 30, 3:47 AM MDT | Wind Advisory | GJT | Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 7 more | 16 hr |
| Sep 30, 3:54 AM MDT | Winter Weather Advisory | GJT | Eagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt | 32 hr |
| Sep 30, 4:45 AM MDT | Winter Weather Advisory | BOU | Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more | 22 hr |
| Sep 30, 5:00 AM MDT | Red Flag Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 13 more | 15 hr |
| Sep 30, 7:18 AM MDT | High Wind Warning | GJT | Delta, Eagle, Garfield, Gunnison, Mesa, Moffat and 4 more | 12 hr |
| Sep 30, 12:07 PM MDT | Wind Advisory | GLD | Cheyenne, Kit Carson, Yuma | 7 hr |
| Sep 30, 2:21 PM MDT | Freeze Watch | BOU | Adams, Arapahoe, Broomfield, Denver, Douglas, Elbert and 4 more | 13 hr |
| Sep 30, 2:21 PM MDT | High Wind Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 7 more | 13 hr |
| Sep 30, 2:55 PM MDT | Freeze Warning | GJT | Delta, Dolores, Eagle, Garfield, Gunnison, Mesa and 4 more | 18 hr |
| Sep 30, 3:21 PM MDT | High Wind Watch | GLD | Kit Carson, Yuma | 11 hr |
| Sep 30, 3:21 PM MDT | Wind Advisory | GLD | Cheyenne | 28 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 | |
| Severe Thunderstorm Warning | 28 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 3 |
| Special Weather Statement | 8 |
| Flooding | |
| Flash Flood Warning | 1 |
| Areal Flood Advisory | 15 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 4 |
| Cold | |
| Freeze Warning | 5 |
| Freeze Watch | 4 |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 1 |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 2 |
| 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.
- Garfield County11
- El Paso County10
- Eagle County10
- Lincoln County9
- Washington County9
- Dolores County9
- San Miguel County9
- Mesa County9
- Pitkin County9
- Arapahoe County8
- Elbert County8
- Rio Blanco County8
- Routt County8
- Douglas County8
- Yuma County7
- Cheyenne County7
- Boulder County7
- Gilpin County7
- Jefferson County7
- Delta County7
- Montrose County7
- Moffat County7
- Montezuma County7
- Larimer County7
- Weld County6
- Morgan County6
- Kit Carson County6
- Gunnison County6
- Clear Creek County6
- Park County6
- Adams County5
- Crowley County5
- Kiowa County5
- Archuleta County5
- La Plata County5
- Logan County4
- Phillips County4
- Sedgwick County4
- Broomfield County4
- Denver County4
20 more counties
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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. Warning verification from the Mesonet's Cow. Rebuilt daily.