Alert archive / Colorado / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Colorado, 1991
222 severe thunderstorm warnings in 1991. 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 1991. Tap one for its archive.
- Severe Thunderstorm Warnings
- 222
- Busiest month
- June101 severe thunderstorm warnings
- Busiest day
- June 22, 199122 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 18, 5:51 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 69 min |
| May 2, 2:18 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 42 min |
| May 2, 2:55 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 35 min |
| May 2, 3:33 PM MDT | Severe Thunderstorm Warning | PUB | Crowley | 57 min |
| May 2, 4:00 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 30 min |
| May 3, 5:56 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 34 min |
| May 10, 5:43 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 62 min |
| May 11, 5:40 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Prowers | 20 min |
| May 11, 6:00 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 20 min |
| May 11, 6:25 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Washington | 20 min |
| May 11, 6:26 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 64 min |
| May 11, 6:47 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 58 min |
| May 11, 7:48 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 57 min |
| May 15, 3:09 PM MDT | Severe Thunderstorm Warning | BOU | Larimer | 6 min |
| May 15, 3:40 PM MDT | Severe Thunderstorm Warning | BOU | Larimer | 35 min |
| May 18, 6:59 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 61 min |
| May 19, 4:45 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 45 min |
| May 19, 4:52 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Weld | 53 min |
| May 19, 4:52 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe | 53 min |
| May 19, 5:30 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 25 min |
| May 19, 5:51 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 69 min |
| May 19, 6:51 PM MDT | Severe Thunderstorm Warning | GLD | Elbert, Lincoln | 69 min |
| May 19, 6:51 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 69 min |
| May 22, 6:22 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 68 min |
| May 22, 6:22 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 68 min |
| May 22, 6:37 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 68 min |
| May 22, 7:23 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 67 min |
| May 23, 1:25 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe | 35 min |
| May 23, 1:25 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 35 min |
| May 23, 1:26 PM MDT | Severe Thunderstorm Warning | BOU | Jefferson | 64 min |
| May 23, 1:58 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Denver, Jefferson | 62 min |
| May 23, 2:01 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe | 29 min |
| May 23, 2:01 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 29 min |
| May 23, 2:30 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe | 45 min |
| May 23, 3:03 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 27 min |
| May 23, 3:33 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Denver, Douglas | 57 min |
| May 23, 3:34 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 56 min |
| May 23, 3:45 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 60 min |
| May 23, 4:17 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Washington | 43 min |
| May 23, 4:25 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe | 65 min |
| May 23, 4:47 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 38 min |
| May 23, 5:00 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Washington | 60 min |
| May 23, 5:17 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Lincoln | 58 min |
| May 23, 6:00 PM MDT | Severe Thunderstorm Warning | BOU | Washington, Yuma | 60 min |
| May 23, 6:02 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 58 min |
| May 23, 6:02 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 58 min |
| May 23, 6:56 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 49 min |
| May 26, 3:33 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 57 min |
| May 26, 4:33 PM MDT | Severe Thunderstorm Warning | BOU | Washington, Yuma | 57 min |
| May 26, 4:33 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 57 min |
| May 26, 5:42 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 63 min |
| May 26, 11:19 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 41 min |
| May 26, 11:53 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 52 min |
| May 27, 6:02 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 58 min |
| May 27, 6:44 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 61 min |
| May 27, 7:42 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Morgan, Washington | 63 min |
| May 28, 2:44 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 61 min |
| May 28, 3:08 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Weld | 52 min |
| May 28, 3:15 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 60 min |
| May 28, 3:42 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 48 min |
| May 28, 3:57 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 63 min |
| May 28, 4:14 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 46 min |
| May 28, 4:35 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 22 min |
| May 28, 5:01 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 59 min |
| May 28, 6:20 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 55 min |
| May 28, 9:52 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Denver, Jefferson | 53 min |
| May 29, 4:06 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 39 min |
| May 29, 4:47 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 43 min |
| May 29, 5:20 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 55 min |
| May 29, 7:20 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 25 min |
| May 31, 3:29 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Denver | 31 min |
| May 31, 3:29 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 31 min |
| May 31, 3:56 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Denver | 34 min |
| May 31, 4:20 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Denver | 40 min |
| May 31, 4:20 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 40 min |
| May 31, 4:30 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 45 min |
| May 31, 4:56 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Douglas | 49 min |
| May 31, 4:56 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 49 min |
| May 31, 5:14 PM MDT | Severe Thunderstorm Warning | BOU | Adams | 46 min |
| May 31, 5:45 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe | 60 min |
| May 31, 5:45 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 60 min |
| May 31, 6:09 PM MDT | Severe Thunderstorm Warning | BOU | Boulder, Jefferson | 51 min |
| May 31, 6:12 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 48 min |
| May 31, 6:12 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 48 min |
| May 31, 6:46 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 59 min |
| May 31, 6:46 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 59 min |
| May 31, 7:43 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 62 min |
| May 31, 8:38 PM MDT | Severe Thunderstorm Warning | BOU | Morgan | 67 min |
| May 31, 9:06 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 39 min |
| May 31, 9:44 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Weld | 46 min |
| May 31, 10:38 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 52 min |
| May 31, 10:48 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 42 min |
| May 31, 11:33 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Weld | 42 min |
| May 31, 11:49 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 26 min |
| Jun 1, 12:15 AM MDT | Severe Thunderstorm Warning | BOU | Washington | 30 min |
| Jun 1, 12:15 AM MDT | Severe Thunderstorm Warning | BOU | Weld | 45 min |
| Jun 1, 4:05 PM MDT | Severe Thunderstorm Warning | BOU | Denver, Jefferson | 40 min |
| Jun 1, 4:05 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 40 min |
| Jun 1, 4:57 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Boulder, Denver, Jefferson | 48 min |
| Jun 1, 5:44 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Denver, Jefferson | 46 min |
| Jun 1, 5:44 PM MDT | Severe Thunderstorm Warning | BOU | Boulder, Weld | 46 min |
| Jun 2, 5:27 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Boulder, Denver, Jefferson | 48 min |
| Jun 2, 5:27 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 48 min |
| Jun 2, 5:41 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan, Washington | 64 min |
| Jun 5, 3:20 PM MDT | Severe Thunderstorm Warning | GLD | Elbert, Lincoln | 55 min |
| Jun 5, 7:04 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 26 min |
| Jun 6, 3:59 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Denver | 46 min |
| Jun 6, 3:59 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 46 min |
| Jun 6, 4:41 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Denver | 64 min |
| Jun 6, 4:41 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 64 min |
| Jun 6, 4:53 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 52 min |
| Jun 6, 5:40 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Weld | 65 min |
| Jun 7, 3:42 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 48 min |
| Jun 8, 5:30 PM MDT | Severe Thunderstorm Warning | BOU | Sedgwick | 30 min |
| Jun 8, 5:44 PM MDT | Severe Thunderstorm Warning | BOU | Phillips | 46 min |
| Jun 8, 6:30 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Phillips | 45 min |
| Jun 9, 3:35 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 55 min |
| Jun 9, 5:10 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 35 min |
| Jun 9, 5:12 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Denver, Jefferson | 48 min |
| Jun 9, 5:59 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Denver | 61 min |
| Jun 10, 2:44 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 46 min |
| Jun 10, 2:44 PM MDT | Severe Thunderstorm Warning | GLD | El Paso, Teller | 46 min |
| Jun 10, 3:55 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 65 min |
| Jun 10, 3:55 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 65 min |
| Jun 12, 3:35 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 40 min |
| Jun 12, 3:38 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Weld | 37 min |
| Jun 16, 2:43 PM MDT | Severe Thunderstorm Warning | BOU | Jefferson | 32 min |
| Jun 16, 4:09 PM MDT | Severe Thunderstorm Warning | BOU | Morgan | 36 min |
| Jun 16, 5:12 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Phillips, Sedgwick | 48 min |
| Jun 16, 5:54 PM MDT | Severe Thunderstorm Warning | BOU | Phillips, Sedgwick, Yuma | 36 min |
| Jun 16, 6:28 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 32 min |
| Jun 16, 7:20 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 55 min |
| Jun 18, 6:04 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 26 min |
| Jun 18, 6:29 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Phillips, Sedgwick | 31 min |
| Jun 19, 3:19 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 56 min |
| Jun 19, 5:50 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Washington | 25 min |
| Jun 19, 7:23 PM MDT | Severe Thunderstorm Warning | BOU | Washington, Yuma | 37 min |
| Jun 19, 8:00 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 30 min |
| Jun 20, 8:59 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 31 min |
| Jun 20, 10:14 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 31 min |
| Jun 20, 10:45 PM MDT | Severe Thunderstorm Warning | BOU | Kit Carson, Washington, Yuma | 30 min |
| Jun 21, 1:51 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Denver, Jefferson | 39 min |
| Jun 21, 2:26 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Boulder, Jefferson | 34 min |
| Jun 21, 2:30 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Denver, Douglas, Jefferson | 45 min |
| Jun 21, 3:04 PM MDT | Severe Thunderstorm Warning | BOU | Denver, Jefferson | 41 min |
| Jun 21, 3:27 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Douglas | 33 min |
| Jun 21, 3:30 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 60 min |
| Jun 21, 3:45 PM MDT | Severe Thunderstorm Warning | BOU | Jefferson | 30 min |
| Jun 21, 4:40 PM MDT | Severe Thunderstorm Warning | BOU | Larimer | 35 min |
| Jun 21, 4:55 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 35 min |
| Jun 21, 5:29 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Douglas | 46 min |
| Jun 21, 5:50 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Denver, Jefferson | 25 min |
| Jun 21, 6:39 PM MDT | Severe Thunderstorm Warning | BOU | Jefferson | 21 min |
| Jun 21, 8:50 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Denver, Jefferson | 40 min |
| Jun 21, 9:25 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Denver | 25 min |
| Jun 21, 10:41 PM MDT | Severe Thunderstorm Warning | BOU | Denver, Jefferson | 29 min |
| Jun 21, 11:09 PM MDT | Severe Thunderstorm Warning | BOU | Denver | 26 min |
| Jun 21, 11:17 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 28 min |
| Jun 22, 1:18 PM MDT | Severe Thunderstorm Warning | PUB | Huerfano, Pueblo | 57 min |
| Jun 22, 1:57 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 33 min |
| Jun 22, 2:11 PM MDT | Severe Thunderstorm Warning | BOU | Boulder, Weld | 34 min |
| Jun 22, 2:11 PM MDT | Severe Thunderstorm Warning | BOU | Adams | 34 min |
| Jun 22, 2:21 PM MDT | Severe Thunderstorm Warning | PUB | Huerfano, Las Animas | 69 min |
| Jun 22, 2:45 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 30 min |
| Jun 22, 3:15 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 45 min |
| Jun 22, 3:26 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 34 min |
| Jun 22, 3:45 PM MDT | Severe Thunderstorm Warning | PUB | Crowley, Otero | 60 min |
| Jun 22, 3:50 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 40 min |
| Jun 22, 4:22 PM MDT | Severe Thunderstorm Warning | PUB | Otero | 53 min |
| Jun 22, 4:31 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 44 min |
| Jun 22, 5:10 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Kiowa | 50 min |
| Jun 22, 5:44 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Kiowa, Prowers | 46 min |
| Jun 22, 5:47 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Morgan, Weld | 43 min |
| Jun 22, 5:47 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 58 min |
| Jun 22, 6:09 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 66 min |
| Jun 22, 6:32 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 28 min |
| Jun 22, 6:59 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Washington | 46 min |
| Jun 22, 7:30 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 60 min |
| Jun 22, 7:49 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 41 min |
| Jun 22, 8:29 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 31 min |
| Jun 22, 8:31 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 29 min |
| Jun 22, 10:38 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 37 min |
| Jul 2, 12:28 AM MDT | Severe Thunderstorm Warning | PUB | Bent | 47 min |
| Jul 2, 3:18 AM MDT | Severe Thunderstorm Warning | PUB | Baca | 27 min |
| Jul 2, 4:16 PM MDT | Severe Thunderstorm Warning | GLD | Teller | 59 min |
| Jul 2, 5:10 PM MDT | Severe Thunderstorm Warning | GLD | Douglas, El Paso | 65 min |
| Jul 2, 5:10 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 65 min |
| Jul 2, 6:17 PM MDT | Severe Thunderstorm Warning | GLD | El Paso, Lincoln | 58 min |
| Jul 2, 6:17 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 58 min |
| Jul 2, 7:55 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Washington | 38 min |
| Jul 8, 3:48 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 57 min |
| Jul 8, 4:12 PM MDT | Severe Thunderstorm Warning | GLD | Elbert | 63 min |
| Jul 8, 6:57 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 63 min |
| Jul 12, 2:13 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 47 min |
| Jul 12, 3:15 PM MDT | Severe Thunderstorm Warning | BOU | Adams | 30 min |
| Jul 12, 4:02 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Denver | 28 min |
| Jul 12, 4:15 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 30 min |
| Jul 19, 6:36 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 54 min |
| Jul 25, 3:49 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Denver | 26 min |
| Jul 26, 2:01 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 59 min |
| Jul 26, 2:59 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 61 min |
| Aug 5, 4:50 PM MDT | Severe Thunderstorm Warning | PUB | Crowley, Otero, Pueblo | 30 min |
| Aug 8, 3:38 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 22 min |
| Aug 8, 4:58 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 47 min |
| Aug 11, 6:40 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Morgan, Weld | 35 min |
| Aug 11, 7:05 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 65 min |
| Aug 11, 7:15 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Washington | 30 min |
| Aug 11, 8:15 PM MDT | Severe Thunderstorm Warning | GLD | Lincoln | 60 min |
| Aug 12, 4:25 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 65 min |
| Aug 12, 4:53 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 67 min |
| Aug 16, 3:25 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 50 min |
| Aug 16, 4:54 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 41 min |
| Aug 16, 6:26 PM MDT | Severe Thunderstorm Warning | GLD | El Paso | 64 min |
| Aug 19, 6:07 PM MDT | Severe Thunderstorm Warning | PUB | Custer, Pueblo | 68 min |
| Aug 19, 6:33 PM MDT | Severe Thunderstorm Warning | PUB | Huerfano, Pueblo | 42 min |
| Aug 19, 6:44 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 31 min |
| Sep 4, 5:35 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Sedgwick | 25 min |
| Sep 4, 7:11 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 34 min |
| Sep 4, 7:44 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 21 min |
| Sep 11, 7:47 PM MDT | Severe Thunderstorm Warning | BOU | Morgan | 43 min |
| Sep 11, 8:30 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Morgan, Washington | 30 min |
| Sep 12, 1:15 AM MDT | Severe Thunderstorm Warning | BOU | Phillips, Sedgwick | 30 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Weld County39
- Adams County35
- Arapahoe County34
- Washington County24
- Denver County24
- Jefferson County19
- Elbert County16
- Morgan County16
- El Paso County14
- Logan County14
- Douglas County12
- Yuma County11
- Pueblo County10
- Lincoln County8
- Baca County7
- Cheyenne County7
- Larimer County7
- Kit Carson County7
- Prowers County6
- Boulder County6
- Sedgwick County6
- Phillips County6
- Kiowa County5
- Bent County4
- Crowley County3
- Huerfano County3
- Otero County3
- Teller County2
- Las Animas County1
- Custer County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive19901992
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.