Weather alerts in Colorado, 1986
172 weather alerts in 1986, 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 1986. Tap one for its archive.
- Alerts
- 172
- Warnings
- 172
- Watches
- 0
- Advisories
- 0
- Busiest month
- August74 alerts
- Busiest day
- August 2, 198620 alerts
Over time
By month
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 |
|---|---|---|---|---|
| Apr 2, 7:06 PM MST | Severe Thunderstorm Warning | BOU | Yuma | 54 min |
| May 12, 10:30 PM MDT | Tornado Warning | GLD | Cheyenne | 30 min |
| May 12, 11:00 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 60 min |
| May 12, 11:10 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 50 min |
| May 14, 8:05 PM MDT | Tornado Warning | BOU | Washington, Yuma | 35 min |
| May 15, 4:45 PM MDT | Severe Thunderstorm Warning | BOU | Washington, Yuma | 60 min |
| May 15, 5:45 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 45 min |
| May 15, 5:48 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 57 min |
| May 15, 6:05 PM MDT | Tornado Warning | GLD | Kit Carson | 29 min |
| Jun 2, 8:18 AM MDT | Severe Thunderstorm Warning | BOU | Washington, Yuma | 57 min |
| Jun 4, 7:45 PM MDT | Flash Flood Warning | GLD | El Paso | 75 min |
| Jun 6, 2:07 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 53 min |
| Jun 6, 4:00 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 60 min |
| Jun 6, 6:35 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 25 min |
| Jun 7, 3:50 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 70 min |
| Jun 7, 4:45 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 45 min |
| Jun 7, 6:10 PM MDT | Tornado Warning | PUB | Crowley | 50 min |
| Jun 7, 6:45 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Lincoln | 75 min |
| Jun 7, 7:37 PM MDT | Severe Thunderstorm Warning | BOU | Morgan | 53 min |
| Jun 7, 7:40 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 60 min |
| Jun 8, 2:45 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Kiowa | 60 min |
| Jun 8, 3:26 PM MDT | Severe Thunderstorm Warning | BOU | Adams | 54 min |
| Jun 8, 3:55 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa, Otero | 60 min |
| Jun 8, 4:40 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 65 min |
| Jun 8, 5:17 PM MDT | Tornado Warning | BOU | Adams, Arapahoe | 23 min |
| Jun 8, 5:44 PM MDT | Tornado Warning | BOU | Adams | 26 min |
| Jun 8, 6:00 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 60 min |
| Jun 9, 9:49 AM MDT | Tornado Warning | BOU | Adams, Arapahoe, Boulder, Jefferson | 26 min |
| Jun 9, 10:27 AM MDT | Tornado Warning | BOU | Weld | 23 min |
| Jun 9, 3:00 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 60 min |
| Jun 9, 3:46 PM MDT | Tornado Warning | BOU | Adams, Arapahoe | 24 min |
| Jun 9, 4:05 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 55 min |
| Jun 9, 4:35 PM MDT | Tornado Warning | GLD | Lincoln | 40 min |
| Jun 13, 3:00 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Lincoln | 65 min |
| Jun 13, 3:15 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 3 hr |
| Jun 13, 4:05 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 2 hr |
| Jun 13, 5:00 PM MDT | Tornado Warning | GLD | Cheyenne | 65 min |
| Jun 14, 4:45 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 45 min |
| Jun 14, 5:29 PM MDT | Severe Thunderstorm Warning | BOU | Morgan | 61 min |
| Jun 14, 6:00 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 60 min |
| Jun 14, 6:52 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Morgan, Weld | 68 min |
| Jun 14, 7:00 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 60 min |
| Jun 14, 7:46 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Phillips, Sedgwick | 59 min |
| Jun 14, 8:00 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 60 min |
| Jun 14, 9:00 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 60 min |
| Jun 16, 3:05 PM MDT | Severe Thunderstorm Warning | BOU | Washington, Yuma | 55 min |
| Jun 16, 3:05 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 55 min |
| Jun 16, 4:35 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 70 min |
| Jun 16, 7:16 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 60 min |
| Jun 20, 4:44 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Washington | 56 min |
| Jun 20, 4:44 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 56 min |
| Jun 23, 2:08 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 52 min |
| Jun 23, 2:20 PM MDT | Severe Thunderstorm Warning | PUB | Las Animas | 40 min |
| Jun 23, 2:25 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 60 min |
| Jun 23, 3:20 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 60 min |
| Jun 23, 3:50 PM MDT | Severe Thunderstorm Warning | PUB | Crowley, Otero, Pueblo | 60 min |
| Jun 23, 5:45 PM MDT | Severe Thunderstorm Warning | PUB | Otero | 60 min |
| Jun 23, 6:08 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 52 min |
| Jun 23, 6:08 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 52 min |
| Jun 23, 6:15 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 60 min |
| Jun 30, 4:23 PM MDT | Severe Thunderstorm Warning | PUB | Bent | 57 min |
| Jun 30, 5:10 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 60 min |
| Jun 30, 5:29 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Morgan, Weld | 46 min |
| Jul 1, 4:47 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 58 min |
| Jul 1, 4:47 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 58 min |
| Jul 1, 5:52 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Lincoln | 53 min |
| Jul 1, 6:45 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 60 min |
| Jul 1, 7:00 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 60 min |
| Jul 1, 7:41 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 64 min |
| Jul 1, 8:14 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 56 min |
| Jul 1, 8:21 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 54 min |
| Jul 7, 5:33 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 57 min |
| Jul 7, 6:00 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 60 min |
| Jul 7, 6:30 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 60 min |
| Jul 7, 6:30 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 60 min |
| Jul 9, 2:53 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Washington, Yuma | 52 min |
| Jul 9, 3:49 PM MDT | Severe Thunderstorm Warning | BOU | Phillips | 56 min |
| Jul 9, 5:45 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 60 min |
| Jul 10, 7:10 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 60 min |
| Jul 12, 7:05 PM MDT | Severe Thunderstorm Warning | PUB | Crowley, Pueblo | 60 min |
| Jul 12, 8:10 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Kiowa, Otero | 60 min |
| Jul 13, 12:40 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 3 hr |
| Jul 13, 6:21 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 54 min |
| Jul 13, 6:45 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 60 min |
| Jul 13, 7:32 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Morgan, Washington | 43 min |
| Jul 13, 7:45 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 60 min |
| Jul 19, 7:10 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Washington | 50 min |
| Jul 24, 2:50 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 40 min |
| Jul 31, 3:09 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 66 min |
| Jul 31, 4:14 PM MDT | Severe Thunderstorm Warning | BOU | Douglas, Elbert | 61 min |
| Jul 31, 4:15 PM MDT | Severe Thunderstorm Warning | BOU | El Paso | 60 min |
| Jul 31, 4:32 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 58 min |
| Jul 31, 6:19 PM MDT | Severe Thunderstorm Warning | BOU | Washington, Yuma | 56 min |
| Jul 31, 6:20 PM MDT | Severe Thunderstorm Warning | PUB | Baca, Las Animas | 57 min |
| Jul 31, 6:20 PM MDT | Severe Thunderstorm Warning | PUB | Otero | 57 min |
| Jul 31, 7:12 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Prowers | 58 min |
| Jul 31, 7:12 PM MDT | Severe Thunderstorm Warning | PUB | Otero, Pueblo | 58 min |
| Jul 31, 7:45 PM MDT | Severe Thunderstorm Warning | PUB | Crowley | 60 min |
| Jul 31, 8:49 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Weld | 71 min |
| Jul 31, 9:54 PM MDT | Severe Thunderstorm Warning | BOU | Park | 66 min |
| Jul 31, 10:01 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Morgan, Washington | 59 min |
| Jul 31, 11:00 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 60 min |
| Aug 1, 7:06 AM MDT | Severe Thunderstorm Warning | BOU | Washington | 69 min |
| Aug 1, 4:10 PM MDT | Tornado Warning | PUB | Baca | 60 min |
| Aug 1, 4:40 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 35 min |
| Aug 1, 5:20 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 55 min |
| Aug 1, 6:20 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 55 min |
| Aug 1, 6:20 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 60 min |
| Aug 1, 7:00 PM MDT | Severe Thunderstorm Warning | PUB | Baca, Prowers | 60 min |
| Aug 1, 7:15 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 60 min |
| Aug 1, 7:45 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 55 min |
| Aug 1, 8:50 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Prowers | 60 min |
| Aug 1, 8:50 PM MDT | Severe Thunderstorm Warning | PUB | Otero | 60 min |
| Aug 2, 1:09 AM MDT | Flash Flood Warning | GLD | El Paso | 111 min |
| Aug 2, 2:01 AM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 44 min |
| Aug 2, 2:03 AM MDT | Severe Thunderstorm Warning | GLD | El Paso | 87 min |
| Aug 2, 1:56 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 64 min |
| Aug 2, 3:00 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Washington | 60 min |
| Aug 2, 3:15 PM MDT | Severe Thunderstorm Warning | PUB | Custer, Fremont | 45 min |
| Aug 2, 3:18 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Elbert | 57 min |
| Aug 2, 3:54 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Washington | 66 min |
| Aug 2, 4:26 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 44 min |
| Aug 2, 4:49 PM MDT | Severe Thunderstorm Warning | BOU | Boulder, Larimer, Weld | 56 min |
| Aug 2, 4:50 PM MDT | Severe Thunderstorm Warning | PUB | Las Animas | 60 min |
| Aug 2, 5:11 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 59 min |
| Aug 2, 5:27 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Weld | 63 min |
| Aug 2, 6:03 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 27 min |
| Aug 2, 6:38 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 67 min |
| Aug 2, 6:44 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 61 min |
| Aug 2, 6:44 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 26 min |
| Aug 2, 6:45 PM MDT | Severe Thunderstorm Warning | BOU | Adams | 35 min |
| Aug 2, 7:06 PM MDT | Severe Thunderstorm Warning | BOU | Boulder, Larimer, Weld | 54 min |
| Aug 2, 7:46 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Denver, Jefferson | 59 min |
| Aug 2, 7:46 PM MDT | Severe Thunderstorm Warning | BOU | Boulder | 59 min |
| Aug 2, 8:20 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 55 min |
| Aug 2, 9:23 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Weld | 52 min |
| Aug 2, 10:14 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Elbert | 46 min |
| Aug 3, 3:20 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 40 min |
| Aug 3, 4:08 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 52 min |
| Aug 3, 4:34 PM MDT | Tornado Warning | GLD | El Paso | 41 min |
| Aug 3, 4:48 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Washington | 57 min |
| Aug 3, 4:58 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 92 min |
| Aug 3, 4:58 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 47 min |
| Aug 3, 5:55 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 35 min |
| Aug 3, 6:34 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 56 min |
| Aug 4, 3:05 PM MDT | Severe Thunderstorm Warning | BOU | Morgan | 55 min |
| Aug 4, 3:18 PM MDT | Severe Thunderstorm Warning | GLD | Elbert, Lincoln | 57 min |
| Aug 4, 4:03 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 62 min |
| Aug 8, 9:15 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 60 min |
| Aug 8, 9:42 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 63 min |
| Aug 10, 4:18 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 60 min |
| Aug 11, 6:02 PM MDT | Severe Thunderstorm Warning | BOU | Phillips, Sedgwick | 58 min |
| Aug 14, 3:55 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 35 min |
| Aug 14, 4:30 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 30 min |
| Aug 14, 4:51 PM MDT | Severe Thunderstorm Warning | BOU | Baca | 39 min |
| Aug 14, 5:00 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 45 min |
| Aug 14, 5:09 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Weld | 56 min |
| Aug 19, 7:30 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 60 min |
| Aug 21, 7:40 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 60 min |
| Aug 21, 8:35 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 65 min |
| Aug 21, 8:50 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 60 min |
| Aug 21, 10:11 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 59 min |
| Aug 31, 4:03 PM MDT | Severe Thunderstorm Warning | GLD | El Paso, Lincoln | 57 min |
| Aug 31, 4:44 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 61 min |
| Aug 31, 4:44 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 61 min |
| Aug 31, 5:44 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 61 min |
| Aug 31, 6:44 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 61 min |
| Sep 9, 3:28 PM MDT | Flash Flood Warning | GJT | Montezuma | 62 min |
| Sep 10, 7:37 AM MDT | Flash Flood Warning | GLD | El Paso | 68 min |
| Sep 10, 5:47 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 28 min |
| Sep 18, 6:31 PM MDT | Tornado Warning | BOU | Logan, Weld | 29 min |
| Sep 18, 7:02 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Weld | 58 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 | 154 |
| Tornado Warning | 14 |
| Flooding | |
| Flash Flood Warning | 4 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- El Paso County22
- Washington County18
- Weld County17
- Yuma County16
- Lincoln County16
- Cheyenne County15
- Adams County13
- Elbert County13
- Kit Carson County12
- Kiowa County10
- Morgan County10
- Logan County10
- Arapahoe County9
- Prowers County8
- Pueblo County8
- Otero County7
- Baca County7
- Larimer County6
- Bent County5
- Crowley County4
- Boulder County4
- Phillips County3
- Las Animas County3
- Jefferson County2
- Sedgwick County2
- Douglas County1
- Park County1
- Custer County1
- Fremont County1
- Denver County1
- Montezuma County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
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.