Alert archive / Colorado / 1999
Weather alerts in Colorado, August 1999
102 weather alerts in August 1999, 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 August 1999. Tap one for its archive.
- Alerts
- 102
- Warnings
- 98
- Watches
- 4
- Advisories
- 0
- Busiest day
- August 10, 199920 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 |
|---|---|---|---|---|
| Jul 31, 6:32 PM MDT | Flash Flood Warning | GJT | Delta, Montrose | 2 hr |
| Jul 31, 7:50 PM MDT | Flash Flood Warning | GJT | Mesa | 2 hr |
| Jul 31, 8:40 PM MDT | Flash Flood Warning | BOU | Lincoln, Washington | 3 hr |
| Jul 31, 11:05 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 60 min |
| Aug 4, 12:59 PM MDT | Tornado Warning | BOU | Weld | 31 min |
| Aug 4, 3:00 PM MDT | Flash Flood Warning | GJT | Dolores, Ouray, San Juan, San Miguel | 3 hr |
| Aug 4, 5:30 PM MDT | Flash Flood Warning | GJT | Delta | 3 hr |
| Aug 4, 8:08 PM MDT | Flash Flood Warning | PUB | Crowley | 3 hr |
| Aug 5, 12:31 AM MDT | Flash Flood Warning | PUB | Fremont | 3 hr |
| Aug 5, 1:35 PM MDT | Flash Flood Warning | GJT | Mesa | 3 hr |
| Aug 5, 2:46 PM MDT | Flash Flood Warning | GJT | San Miguel | 3 hr |
| Aug 5, 6:59 PM MDT | Flash Flood Warning | PUB | El Paso | 3 hr |
| Aug 5, 7:19 PM MDT | Flash Flood Warning | PUB | Kiowa | 2 hr |
| Aug 5, 8:57 PM MDT | Flash Flood Warning | BOU | Lincoln, Washington | 12 hr |
| Aug 5, 9:43 PM MDT | Flash Flood Warning | GLD | Kit Carson, Yuma | 4 hr |
| Aug 5, 9:43 PM MDT | Flash Flood Warning | GLD | Cheyenne | 4 hr |
| Aug 6, 3:36 PM MDT | Flash Flood Warning | BOU | Elbert, Lincoln | 3 hr |
| Aug 7, 2:37 PM MDT | Severe Thunderstorm Warning | BOU | Boulder | 38 min |
| Aug 8, 3:47 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 43 min |
| Aug 8, 6:23 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 42 min |
| Aug 10, 1:29 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Morgan, Washington | 46 min |
| Aug 10, 2:19 PM MDT | Flash Flood Warning | BOU | Clear Creek, Gilpin | 86 min |
| Aug 10, 2:22 PM MDT | Severe Thunderstorm Warning | PUB | Huerfano | 33 min |
| Aug 10, 2:43 PM MDT | Severe Thunderstorm Warning | BOU | Phillips | 37 min |
| Aug 10, 2:50 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 25 min |
| Aug 10, 3:08 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 47 min |
| Aug 10, 3:17 PM MDT | Flash Flood Warning | BOU | Logan, Morgan | 3 hr |
| Aug 10, 3:20 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Denver | 25 min |
| Aug 10, 3:25 PM MDT | Flash Flood Warning | BOU | Logan | 35 min |
| Aug 10, 3:25 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 35 min |
| Aug 10, 3:47 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Denver | 43 min |
| Aug 10, 4:00 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Arapahoe, Broomfield, Denver, Douglas, Elbert and 7 more | 5 hr |
| Aug 10, 4:05 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 50 min |
| Aug 10, 4:34 PM MDT | Flash Flood Warning | BOU | Logan, Morgan, Washington | 3 hr |
| Aug 10, 4:46 PM MDT | Tornado Warning | BOU | Weld | 29 min |
| Aug 10, 4:52 PM MDT | Severe Thunderstorm Warning | BOU | Phillips | 38 min |
| Aug 10, 5:01 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 49 min |
| Aug 10, 5:15 PM MDT | Tornado Warning | BOU | Weld | 45 min |
| Aug 10, 5:31 PM MDT | Severe Thunderstorm Warning | BOU | Morgan | 44 min |
| Aug 10, 5:52 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 48 min |
| Aug 10, 6:00 PM MDT | Tornado Warning | BOU | Weld | 20 min |
| Aug 10, 6:12 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Morgan, Washington, Weld | 63 min |
| Aug 10, 6:41 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 34 min |
| Aug 10, 7:20 PM MDT | Tornado Warning | GLD | Yuma | 50 min |
| Aug 10, 7:28 PM MDT | Flash Flood Warning | BOU | Logan, Washington | 2 hr |
| Aug 10, 7:45 PM MDT | Flash Flood Warning | BOU | Phillips | 3 hr |
| Aug 11, 12:09 PM MDT | Severe Thunderstorm Warning | GJT | Mesa | 31 min |
| Aug 11, 12:39 PM MDT | Severe Thunderstorm Warning | GJT | Garfield | 46 min |
| Aug 11, 12:54 PM MDT | Severe Thunderstorm Warning | GJT | Delta, Mesa, Montrose | 61 min |
| Aug 11, 1:23 PM MDT | Severe Thunderstorm Warning | GJT | Garfield | 62 min |
| Aug 11, 3:39 PM MDT | Severe Thunderstorm Warning | GJT | Mesa | 31 min |
| Aug 17, 1:25 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 50 min |
| Aug 17, 2:00 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Arapahoe, Elbert, Kit Carson, Logan, Morgan and 4 more | 5 hr |
| Aug 17, 2:01 PM MDT | Tornado Warning | BOU | Sedgwick | 29 min |
| Aug 17, 2:14 PM MDT | Tornado Warning | BOU | Sedgwick | 31 min |
| Aug 17, 2:45 PM MDT | Tornado Warning | BOU | Sedgwick | 30 min |
| Aug 17, 3:09 PM MDT | Flash Flood Warning | BOU | Sedgwick | 2 hr |
| Aug 17, 3:15 PM MDT | Tornado Warning | BOU | Sedgwick | 30 min |
| Aug 17, 3:24 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Denver, Jefferson | 51 min |
| Aug 17, 3:44 PM MDT | Severe Thunderstorm Warning | BOU | Sedgwick | 31 min |
| Aug 17, 4:14 PM MDT | Severe Thunderstorm Warning | BOU | Sedgwick | 46 min |
| Aug 17, 4:40 PM MDT | Flash Flood Warning | BOU | Sedgwick | 4 hr |
| Aug 17, 4:45 PM MDT | Severe Thunderstorm Watch | SPC | Elbert, Kit Carson, Phillips, Sedgwick, Washington, Yuma | 6 hr |
| Aug 17, 4:57 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 63 min |
| Aug 17, 5:15 PM MDT | Severe Thunderstorm Warning | BOU | Phillips, Sedgwick | 30 min |
| Aug 17, 5:59 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 31 min |
| Aug 17, 7:08 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 42 min |
| Aug 19, 4:41 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe | 49 min |
| Aug 19, 4:43 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 62 min |
| Aug 19, 5:21 PM MDT | Flash Flood Warning | BOU | Arapahoe | 69 min |
| Aug 19, 6:29 PM MDT | Tornado Warning | PUB | Pueblo | 61 min |
| Aug 23, 5:47 PM MDT | Severe Thunderstorm Warning | GJT | La Plata | 28 min |
| Aug 23, 6:22 PM MDT | Flash Flood Warning | GJT | Gunnison | 3 hr |
| Aug 23, 6:52 PM MDT | Flash Flood Warning | GJT | Gunnison | 3 hr |
| Aug 26, 2:12 PM MDT | Flash Flood Warning | GJT | San Miguel | 3 hr |
| Aug 26, 2:14 PM MDT | Severe Thunderstorm Warning | GJT | Ouray | 61 min |
| Aug 26, 3:51 PM MDT | Flash Flood Warning | GJT | Montrose, San Miguel | 2 hr |
| Aug 26, 4:54 PM MDT | Flash Flood Warning | GJT | Mesa | 2 hr |
| Aug 28, 1:34 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 26 min |
| Aug 28, 1:57 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Douglas, Elbert | 33 min |
| Aug 28, 2:15 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Arapahoe, Elbert, El Paso, Logan, Morgan and 4 more | 5 hr |
| Aug 28, 2:17 PM MDT | Tornado Warning | BOU | Adams, Arapahoe | 28 min |
| Aug 28, 3:22 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 58 min |
| Aug 28, 3:33 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 62 min |
| Aug 28, 3:44 PM MDT | Severe Thunderstorm Warning | BOU | Adams | 31 min |
| Aug 28, 6:17 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 48 min |
| Aug 28, 6:19 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 46 min |
| Aug 28, 6:28 PM MDT | Tornado Warning | GLD | Yuma | 32 min |
| Aug 28, 7:07 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 63 min |
| Aug 29, 1:52 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 63 min |
| Aug 29, 2:55 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Elbert, Lincoln, Washington | 35 min |
| Aug 29, 3:58 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Elbert, Lincoln | 30 min |
| Aug 29, 4:49 PM MDT | Tornado Warning | BOU | Washington | 31 min |
| Aug 29, 5:10 PM MDT | Flash Flood Warning | GJT | Rio Blanco | 3 hr |
| Aug 29, 5:20 PM MDT | Tornado Warning | BOU | Washington | 30 min |
| Aug 29, 5:40 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 35 min |
| Aug 29, 5:51 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 64 min |
| Aug 29, 6:00 PM MDT | Tornado Warning | BOU | Washington | 30 min |
| Aug 30, 5:04 PM MDT | Severe Thunderstorm Warning | PUB | Saguache | 31 min |
| Aug 30, 6:50 PM MDT | Severe Thunderstorm Warning | GJT | Garfield, Rio Blanco | 60 min |
| Aug 30, 7:36 PM MDT | Severe Thunderstorm Warning | GJT | Moffat | 44 min |
| Aug 30, 8:21 PM MDT | Severe Thunderstorm Warning | GJT | Moffat | 49 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 | 53 |
| Tornado Warning | 15 |
| Severe Thunderstorm Watch | 4 |
| Flooding | |
| Flash Flood Warning | 30 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Washington County16
- Yuma County15
- Sedgwick County12
- Arapahoe County11
- Logan County10
- Elbert County9
- Adams County9
- Morgan County8
- Phillips County8
- El Paso County7
- Kit Carson County7
- Mesa County6
- Lincoln County6
- Weld County5
- San Miguel County4
- Denver County4
- Delta County3
- Montrose County3
- Douglas County3
- Garfield County3
- Ouray County2
- Pueblo County2
- Gunnison County2
- Rio Blanco County2
- Moffat County2
- Baca County1
- Dolores County1
- San Juan County1
- Crowley County1
- Fremont County1
- Kiowa County1
- Cheyenne County1
- Boulder County1
- Clear Creek County1
- Gilpin County1
- Huerfano County1
- Broomfield County1
- Jefferson County1
- La Plata County1
- Prowers County1
1 more counties
Nearby
Alerts in force nowTornadoes on recordThe radar archive19982000
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.