Alert archive / Colorado / Severe Thunderstorm Warnings / 2020
Severe Thunderstorm Warnings in Colorado, August 2020
152 severe thunderstorm warnings in August 2020. 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 August 2020. Tap one for its archive.
- Severe Thunderstorm Warnings
- 152
- Busiest day
- August 5, 202030 severe thunderstorm warnings
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, 7:12 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 33 min |
| Jul 31, 7:29 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Weld | 15 min |
| Jul 31, 7:37 PM MDT | Severe Thunderstorm Warning | PUB | Otero, Pueblo | 23 min |
| Jul 31, 8:20 PM MDT | Severe Thunderstorm Warning | BOU | Boulder, Larimer, Weld | 25 min |
| Jul 31, 8:49 PM MDT | Severe Thunderstorm Warning | BOU | Boulder, Weld | 26 min |
| Aug 1, 6:03 PM MDT | Severe Thunderstorm Warning | BOU | Larimer | 42 min |
| Aug 1, 6:45 PM MDT | Severe Thunderstorm Warning | BOU | Larimer | 45 min |
| Aug 2, 2:47 PM MDT | Severe Thunderstorm Warning | PUB | Custer, Huerfano, Pueblo | 20 min |
| Aug 2, 3:20 PM MDT | Severe Thunderstorm Warning | GJT | La Plata | 31 min |
| Aug 2, 3:47 PM MDT | Severe Thunderstorm Warning | GJT | La Plata | 28 min |
| Aug 2, 6:04 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 41 min |
| Aug 2, 6:21 PM MDT | Severe Thunderstorm Warning | PUB | Crowley, Kiowa | 39 min |
| Aug 2, 6:44 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 23 min |
| Aug 2, 8:21 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 39 min |
| Aug 2, 8:52 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 38 min |
| Aug 2, 9:31 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 25 min |
| Aug 3, 1:43 PM MDT | Severe Thunderstorm Warning | PUB | Custer, Fremont | 30 min |
| Aug 3, 2:31 PM MDT | Severe Thunderstorm Warning | BOU | Larimer | 13 min |
| Aug 3, 2:56 PM MDT | Severe Thunderstorm Warning | PUB | Custer, Huerfano, Pueblo | 34 min |
| Aug 3, 3:11 PM MDT | Severe Thunderstorm Warning | PUB | Costilla, Custer, Huerfano | 34 min |
| Aug 3, 3:15 PM MDT | Severe Thunderstorm Warning | PUB | Saguache | 45 min |
| Aug 3, 3:41 PM MDT | Severe Thunderstorm Warning | BOU | Douglas, Jefferson, Park | 36 min |
| Aug 3, 4:00 PM MDT | Severe Thunderstorm Warning | PUB | Costilla, Huerfano, Las Animas | 30 min |
| Aug 3, 5:09 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 7 min |
| Aug 3, 5:15 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 30 min |
| Aug 3, 5:52 PM MDT | Severe Thunderstorm Warning | PUB | Las Animas | 23 min |
| Aug 3, 6:14 PM MDT | Severe Thunderstorm Warning | PUB | Las Animas | 46 min |
| Aug 3, 6:58 PM MDT | Severe Thunderstorm Warning | PUB | Las Animas | 47 min |
| Aug 3, 8:27 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 33 min |
| Aug 4, 2:52 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 38 min |
| Aug 4, 3:10 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 50 min |
| Aug 4, 3:47 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 43 min |
| Aug 4, 3:57 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 48 min |
| Aug 4, 4:30 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 45 min |
| Aug 4, 4:37 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 53 min |
| Aug 4, 5:03 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 42 min |
| Aug 4, 5:13 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Elbert, Lincoln, Washington | 47 min |
| Aug 4, 5:42 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 48 min |
| Aug 4, 5:43 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 32 min |
| Aug 4, 5:57 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Boulder, Broomfield, Weld | 48 min |
| Aug 4, 5:58 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 35 min |
| Aug 4, 6:06 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 39 min |
| Aug 4, 6:15 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 17 min |
| Aug 4, 6:17 PM MDT | Severe Thunderstorm Warning | PUB | Bent | 28 min |
| Aug 4, 6:40 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Denver | 23 min |
| Aug 4, 6:43 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Prowers | 32 min |
| Aug 4, 7:09 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 51 min |
| Aug 4, 7:09 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 36 min |
| Aug 4, 7:33 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 42 min |
| Aug 4, 7:43 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 32 min |
| Aug 4, 8:04 PM MDT | Severe Thunderstorm Warning | BOU | Larimer | 41 min |
| Aug 4, 8:11 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 49 min |
| Aug 4, 8:26 PM MDT | Severe Thunderstorm Warning | PUB | Crowley | 34 min |
| Aug 4, 8:56 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa, Prowers | 34 min |
| Aug 4, 8:58 PM MDT | Severe Thunderstorm Warning | PUB | Crowley, Otero | 32 min |
| Aug 4, 11:19 PM MDT | Severe Thunderstorm Warning | PUB | Huerfano, Pueblo | 26 min |
| Aug 5, 2:10 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Elbert | 50 min |
| Aug 5, 2:43 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 47 min |
| Aug 5, 2:47 PM MDT | Severe Thunderstorm Warning | PUB | El Paso, Teller | 28 min |
| Aug 5, 3:32 PM MDT | Severe Thunderstorm Warning | BOU | Adams | 14 min |
| Aug 5, 3:48 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 27 min |
| Aug 5, 4:03 PM MDT | Severe Thunderstorm Warning | BOU | Boulder, Gilpin, Jefferson | 42 min |
| Aug 5, 4:08 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 52 min |
| Aug 5, 4:30 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Weld | 45 min |
| Aug 5, 4:45 PM MDT | Severe Thunderstorm Warning | BOU | Morgan | 45 min |
| Aug 5, 4:46 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 44 min |
| Aug 5, 4:54 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 51 min |
| Aug 5, 5:30 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Washington | 45 min |
| Aug 5, 5:41 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 34 min |
| Aug 5, 5:45 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 60 min |
| Aug 5, 5:58 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 47 min |
| Aug 5, 6:06 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 25 min |
| Aug 5, 6:25 PM MDT | Severe Thunderstorm Warning | BOU | Phillips | 23 min |
| Aug 5, 6:30 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 75 min |
| Aug 5, 7:13 PM MDT | Severe Thunderstorm Warning | PUB | El Paso, Teller | 32 min |
| Aug 5, 7:20 PM MDT | Severe Thunderstorm Warning | PUB | Custer, Fremont, Pueblo | 25 min |
| Aug 5, 7:43 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 18 min |
| Aug 5, 7:44 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 31 min |
| Aug 5, 7:48 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 57 min |
| Aug 5, 8:46 PM MDT | Severe Thunderstorm Warning | BOU | Sedgwick | 44 min |
| Aug 6, 2:51 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 39 min |
| Aug 6, 3:02 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 28 min |
| Aug 6, 4:09 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 36 min |
| Aug 6, 4:19 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 41 min |
| Aug 6, 4:25 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 50 min |
| Aug 6, 6:00 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 45 min |
| Aug 6, 6:19 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 56 min |
| Aug 6, 6:25 PM MDT | Severe Thunderstorm Warning | PUB | Crowley, El Paso, Pueblo | 35 min |
| Aug 6, 6:57 PM MDT | Severe Thunderstorm Warning | PUB | Crowley | 24 min |
| Aug 6, 8:15 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 30 min |
| Aug 6, 8:27 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 48 min |
| Aug 8, 4:19 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 71 min |
| Aug 9, 3:49 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 71 min |
| Aug 10, 3:02 PM MDT | Severe Thunderstorm Warning | PUB | Crowley, Otero, Pueblo | 43 min |
| Aug 11, 2:43 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 62 min |
| Aug 11, 3:40 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson, Yuma | 65 min |
| Aug 11, 4:38 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson, Yuma | 97 min |
| Aug 11, 6:31 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 44 min |
| Aug 14, 4:16 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 44 min |
| Aug 14, 4:55 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 35 min |
| Aug 14, 5:20 PM MDT | Severe Thunderstorm Warning | PUB | Baca, Prowers | 25 min |
| Aug 14, 5:44 PM MDT | Severe Thunderstorm Warning | PUB | Baca, Prowers | 46 min |
| Aug 15, 3:26 PM MDT | Severe Thunderstorm Warning | PUB | Las Animas | 19 min |
| Aug 15, 3:43 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 47 min |
| Aug 15, 4:12 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 31 min |
| Aug 15, 4:39 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 51 min |
| Aug 15, 4:49 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 26 min |
| Aug 15, 5:11 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 14 min |
| Aug 15, 5:15 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Washington | 30 min |
| Aug 15, 5:30 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 45 min |
| Aug 15, 5:39 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 36 min |
| Aug 15, 5:55 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 20 min |
| Aug 15, 6:04 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 41 min |
| Aug 15, 6:38 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 52 min |
| Aug 15, 6:43 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 47 min |
| Aug 15, 7:20 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 40 min |
| Aug 15, 7:54 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 36 min |
| Aug 16, 2:12 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson, Yuma | 48 min |
| Aug 16, 2:29 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 31 min |
| Aug 16, 2:56 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson, Yuma | 64 min |
| Aug 16, 3:18 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 42 min |
| Aug 16, 3:34 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 41 min |
| Aug 16, 3:34 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 41 min |
| Aug 16, 3:40 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 50 min |
| Aug 16, 4:00 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 60 min |
| Aug 16, 4:28 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 32 min |
| Aug 16, 4:50 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 25 min |
| Aug 16, 4:51 PM MDT | Severe Thunderstorm Warning | PUB | Crowley, Kiowa | 24 min |
| Aug 16, 4:54 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson, Yuma | 96 min |
| Aug 16, 5:14 PM MDT | Severe Thunderstorm Warning | PUB | Crowley | 31 min |
| Aug 16, 6:13 PM MDT | Severe Thunderstorm Warning | PUB | Crowley | 32 min |
| Aug 16, 6:27 PM MDT | Severe Thunderstorm Warning | PUB | Crowley, Otero | 33 min |
| Aug 16, 6:28 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 29 min |
| Aug 16, 6:32 PM MDT | Severe Thunderstorm Warning | PUB | Otero | 43 min |
| Aug 16, 7:00 PM MDT | Severe Thunderstorm Warning | PUB | Otero | 18 min |
| Aug 16, 9:23 PM MDT | Severe Thunderstorm Warning | PUB | Crowley, Kiowa | 37 min |
| Aug 17, 1:55 AM MDT | Severe Thunderstorm Warning | BOU | Weld | 35 min |
| Aug 19, 6:59 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 46 min |
| Aug 19, 7:01 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 44 min |
| Aug 20, 4:40 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 35 min |
| Aug 20, 5:23 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 37 min |
| Aug 20, 5:24 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Elbert | 36 min |
| Aug 20, 5:52 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 23 min |
| Aug 20, 5:53 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 30 min |
| Aug 28, 7:22 PM MDT | Severe Thunderstorm Warning | PUB | Baca, Las Animas | 38 min |
| Aug 29, 1:45 PM MDT | Severe Thunderstorm Warning | PUB | Huerfano, Pueblo | 45 min |
| Aug 29, 2:28 PM MDT | Severe Thunderstorm Warning | PUB | Huerfano, Pueblo | 19 min |
| Aug 29, 2:59 PM MDT | Severe Thunderstorm Warning | GJT | Moffat, Rio Blanco | 31 min |
| Aug 29, 3:00 PM MDT | Severe Thunderstorm Warning | PUB | Las Animas | 45 min |
| Aug 29, 3:22 PM MDT | Severe Thunderstorm Warning | GJT | Garfield, Rio Blanco | 23 min |
| Aug 29, 3:48 PM MDT | Severe Thunderstorm Warning | PUB | Las Animas | 19 min |
| Aug 30, 2:58 PM MDT | Severe Thunderstorm Warning | GJT | Garfield, Mesa | 47 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Lincoln County24
- El Paso County21
- Kit Carson County13
- Weld County12
- Pueblo County11
- Crowley County11
- Elbert County11
- Yuma County9
- Las Animas County8
- Washington County8
- Prowers County8
- Huerfano County7
- Baca County7
- Cheyenne County7
- Adams County6
- Otero County6
- Larimer County5
- Custer County5
- Arapahoe County5
- Boulder County4
- Kiowa County4
- Morgan County3
- La Plata County2
- Fremont County2
- Costilla County2
- Jefferson County2
- Bent County2
- Teller County2
- Logan County2
- Rio Blanco County2
- Garfield County2
- Saguache County1
- Douglas County1
- Park County1
- Broomfield County1
- Denver County1
- Gilpin County1
- Phillips County1
- Sedgwick County1
- Moffat County1
1 more counties
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.