Alert archive / Colorado / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Colorado, 1987
128 severe thunderstorm warnings in 1987. 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 1987. Tap one for its archive.
- Severe Thunderstorm Warnings
- 128
- Busiest month
- June65 severe thunderstorm warnings
- Busiest day
- June 24, 198717 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 |
|---|---|---|---|---|
| May 17, 3:42 PM MDT | Severe Thunderstorm Warning | BOU | Adams | 58 min |
| May 17, 3:57 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 63 min |
| May 17, 3:57 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 63 min |
| May 17, 6:08 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 67 min |
| May 18, 7:03 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 32 min |
| May 20, 6:51 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 39 min |
| May 20, 8:32 PM MDT | Severe Thunderstorm Warning | PUB | Otero | 58 min |
| May 20, 9:34 PM MDT | Severe Thunderstorm Warning | PUB | Bent | 41 min |
| May 22, 2:13 PM MDT | Severe Thunderstorm Warning | BOU | Morgan | 62 min |
| May 23, 4:12 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Weld | 63 min |
| May 23, 7:52 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 68 min |
| May 26, 1:33 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 57 min |
| May 26, 3:24 PM MDT | Severe Thunderstorm Warning | BOU | Morgan | 61 min |
| Jun 9, 3:30 PM MDT | Severe Thunderstorm Warning | BOU | Denver | 60 min |
| Jun 9, 3:30 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Douglas, Jefferson | 60 min |
| Jun 17, 6:24 PM MDT | Severe Thunderstorm Warning | BOU | Washington, Yuma | 61 min |
| Jun 17, 6:24 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 61 min |
| Jun 18, 4:11 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Denver, Jefferson | 59 min |
| Jun 18, 4:11 PM MDT | Severe Thunderstorm Warning | BOU | Boulder | 59 min |
| Jun 18, 5:42 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 63 min |
| Jun 18, 6:29 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 61 min |
| Jun 18, 9:06 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 54 min |
| Jun 18, 11:03 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 57 min |
| Jun 19, 1:16 AM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 59 min |
| Jun 19, 1:16 AM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 59 min |
| Jun 19, 1:55 AM MDT | Severe Thunderstorm Warning | PUB | Bent, Otero | 65 min |
| Jun 20, 2:42 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe | 38 min |
| Jun 20, 3:02 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Weld | 58 min |
| Jun 20, 4:16 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 59 min |
| Jun 20, 4:16 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 59 min |
| Jun 20, 4:35 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Morgan, Weld | 50 min |
| Jun 20, 5:06 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 69 min |
| Jun 20, 5:06 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 69 min |
| Jun 20, 6:43 PM MDT | Severe Thunderstorm Warning | GLD | El Paso, Lincoln | 57 min |
| Jun 20, 6:43 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 57 min |
| Jun 20, 6:55 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 75 min |
| Jun 20, 7:39 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Elbert, Lincoln | 56 min |
| Jun 20, 7:39 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 56 min |
| Jun 20, 8:44 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 56 min |
| Jun 21, 3:11 PM MDT | Severe Thunderstorm Warning | BOU | Washington, Yuma | 29 min |
| Jun 21, 4:58 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 77 min |
| Jun 23, 2:34 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 56 min |
| Jun 23, 2:54 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Douglas | 61 min |
| Jun 23, 2:54 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Denver | 61 min |
| Jun 23, 3:17 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Douglas, Jefferson | 58 min |
| Jun 23, 3:17 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Denver, Weld | 58 min |
| Jun 23, 3:17 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 58 min |
| Jun 23, 4:11 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan, Weld | 59 min |
| Jun 23, 4:11 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Denver | 59 min |
| Jun 23, 5:53 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 42 min |
| Jun 23, 6:04 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 66 min |
| Jun 23, 6:12 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 48 min |
| Jun 23, 6:24 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 56 min |
| Jun 23, 6:31 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Morgan, Washington | 59 min |
| Jun 23, 7:02 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 58 min |
| Jun 23, 7:12 PM MDT | Severe Thunderstorm Warning | GLD | Elbert, Lincoln | 68 min |
| Jun 23, 7:12 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 68 min |
| Jun 23, 7:29 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 51 min |
| Jun 23, 7:29 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 51 min |
| Jun 23, 8:34 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 56 min |
| Jun 23, 9:26 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Otero | 59 min |
| Jun 24, 3:58 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 62 min |
| Jun 24, 3:58 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 62 min |
| Jun 24, 4:00 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 60 min |
| Jun 24, 4:00 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 60 min |
| Jun 24, 4:59 PM MDT | Severe Thunderstorm Warning | GLD | El Paso, Lincoln | 76 min |
| Jun 24, 5:52 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 58 min |
| Jun 25, 6:02 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 63 min |
| Jun 25, 6:02 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 63 min |
| Jun 28, 1:14 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 61 min |
| Jun 28, 3:27 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 63 min |
| Jun 28, 5:06 PM MDT | Severe Thunderstorm Warning | BOU | Washington, Yuma | 59 min |
| Jun 28, 5:06 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe | 59 min |
| Jun 28, 5:06 PM MDT | Severe Thunderstorm Warning | GLD | Elbert, Lincoln | 59 min |
| Jun 28, 5:06 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 59 min |
| Jun 28, 7:10 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 60 min |
| Jun 30, 3:49 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 41 min |
| Jun 30, 3:49 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 41 min |
| Jul 1, 6:29 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 56 min |
| Jul 1, 7:13 PM MDT | Severe Thunderstorm Warning | BOU | Phillips, Sedgwick | 42 min |
| Jul 1, 9:09 PM MDT | Severe Thunderstorm Warning | BOU | Larimer | 51 min |
| Jul 2, 3:02 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Douglas | 53 min |
| Jul 2, 4:02 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Weld | 63 min |
| Jul 2, 4:46 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan, Washington | 59 min |
| Jul 2, 5:45 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 60 min |
| Jul 2, 5:45 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 60 min |
| Jul 2, 9:02 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 58 min |
| Jul 2, 9:02 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 58 min |
| Jul 2, 9:10 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 65 min |
| Jul 2, 10:00 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 60 min |
| Jul 2, 10:00 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 60 min |
| Jul 2, 11:02 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 63 min |
| Jul 2, 11:02 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 63 min |
| Jul 3, 9:00 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 60 min |
| Jul 3, 10:31 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Washington | 59 min |
| Jul 4, 12:30 AM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 60 min |
| Jul 4, 12:30 AM MDT | Severe Thunderstorm Warning | GLD | Elbert, Lincoln | 60 min |
| Jul 4, 4:04 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 56 min |
| Jul 4, 4:15 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe | 60 min |
| Jul 4, 5:04 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 61 min |
| Jul 4, 5:45 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 60 min |
| Jul 4, 6:29 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 61 min |
| Jul 7, 4:15 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Weld | 60 min |
| Jul 7, 5:17 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 58 min |
| Jul 7, 6:53 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 67 min |
| Jul 7, 7:42 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 58 min |
| Jul 8, 6:59 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 61 min |
| Jul 8, 6:59 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 61 min |
| Jul 9, 4:08 PM MDT | Severe Thunderstorm Warning | BOU | Sedgwick | 42 min |
| Jul 11, 6:45 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 60 min |
| Jul 17, 4:30 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 65 min |
| Jul 17, 5:11 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 59 min |
| Jul 17, 5:11 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 59 min |
| Aug 7, 5:45 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Morgan, Weld | 60 min |
| Aug 9, 3:43 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 62 min |
| Sep 5, 5:08 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe | 32 min |
| Sep 6, 7:51 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 39 min |
| Sep 7, 6:54 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 56 min |
| Sep 10, 4:19 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 56 min |
| Sep 10, 6:10 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Morgan, Weld | 50 min |
| Sep 10, 8:20 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 55 min |
| Sep 10, 8:20 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 55 min |
| Sep 10, 9:08 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 67 min |
| Sep 10, 9:08 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 67 min |
| Sep 17, 2:10 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 65 min |
| Sep 17, 3:10 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 65 min |
| Sep 20, 3:12 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 28 min |
| Sep 20, 3:12 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 28 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Elbert County20
- Arapahoe County19
- Adams County18
- Weld County18
- Lincoln County13
- Morgan County12
- Douglas County11
- Kit Carson County11
- El Paso County11
- Washington County9
- Kiowa County6
- Yuma County5
- Denver County5
- Cheyenne County5
- Pueblo County4
- Logan County4
- Otero County3
- Bent County3
- Jefferson County3
- Sedgwick County2
- Boulder County1
- Phillips County1
- Larimer County1
- Prowers County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive19861988
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.