Alert archive / Colorado / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Colorado, 1986
154 severe thunderstorm warnings in 1986. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in 1986. Tap one for its archive.
- Severe Thunderstorm Warnings
- 154
- Busiest month
- August71 severe thunderstorm warnings
- Busiest day
- August 2, 198619 severe thunderstorm warnings
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, 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 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 |
| Jun 2, 8:18 AM MDT | Severe Thunderstorm Warning | BOU | Washington, Yuma | 57 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, 6:45 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, 6:00 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 60 min |
| Jun 9, 3:00 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 60 min |
| Jun 9, 4:05 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 55 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 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, 4:40 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, 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, 4:48 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 10, 5:47 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 28 min |
| Sep 18, 7:02 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Weld | 58 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- El Paso County18
- Washington County17
- Yuma County15
- Lincoln County15
- Weld County15
- Cheyenne County13
- Elbert County13
- Kit Carson County11
- Kiowa County10
- Morgan County10
- Adams County9
- Logan County9
- Prowers County8
- Pueblo County8
- Otero County7
- Larimer County6
- Arapahoe County6
- Baca County6
- Bent County5
- Phillips County3
- Las Animas County3
- Crowley County3
- Boulder County3
- Sedgwick County2
- Douglas County1
- Park County1
- Custer County1
- Fremont County1
- Denver County1
- Jefferson 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. Warning verification from the Mesonet's Cow. Rebuilt daily.