Alert archive / Colorado / Mesoscale Discussions / 2026
Mesoscale Discussions in Colorado, May 2026
17 mesoscale discussions in May 2026. 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in May 2026. Tap one for its archive.
- Mesoscale Discussions
- 17
- Busiest day
- May 21, 20264 mesoscale discussions
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 |
|---|---|---|---|---|
| May 9, 12:10 PM MDT | Mesoscale Discussion | SPC | Logan, Weld | 3 hr |
| May 14, 1:03 PM MDT | Mesoscale Discussion | SPC | Baca | 117 min |
| May 14, 2:39 PM MDT | Mesoscale Discussion | SPC | Cheyenne, Kit Carson, Phillips, Yuma | 2 hr |
| May 15, 1:34 PM MDT | Mesoscale Discussion | SPC | Las Animas | 116 min |
| May 16, 1:36 PM MDT | Mesoscale Discussion | SPC | Kit Carson, Phillips, Washington, Yuma | 84 min |
| May 17, 2:08 PM MDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Cheyenne, Denver, Douglas, Elbert and 9 more | 3 hr |
| May 21, 12:10 PM MDT | Mesoscale Discussion | SPC | Baca, Bent, Crowley, Huerfano, Kiowa, Las Animas and 3 more | 2 hr |
| May 21, 2:19 PM MDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Elbert, Kit Carson, Logan, Morgan and 5 more | 116 min |
| May 21, 3:02 PM MDT | Mesoscale Discussion | SPC | Baca, Bent, Kiowa, Las Animas, Otero, Prowers | 88 min |
| May 21, 5:16 PM MDT | Mesoscale Discussion | SPC | Kit Carson, Logan, Washington, Yuma | 119 min |
| May 23, 12:24 PM MDT | Mesoscale Discussion | SPC | Phillips, Sedgwick, Yuma | 3 hr |
| May 25, 4:13 PM MDT | Mesoscale Discussion | SPC | Cheyenne, Kit Carson, Yuma | 2 hr |
| May 28, 6:15 PM MDT | Mesoscale Discussion | SPC | Alamosa, Boulder, Broomfield, Clear Creek, Costilla, Custer and 12 more | 2 hr |
| May 29, 2:19 PM MDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Bent, Cheyenne, Crowley, Elbert and 11 more | 116 min |
| May 29, 5:05 PM MDT | Mesoscale Discussion | SPC | Cheyenne, Kit Carson, Yuma | 115 min |
| May 30, 1:14 PM MDT | Mesoscale Discussion | SPC | Logan, Morgan, Phillips, Sedgwick, Washington, Weld and 1 more | 2 hr |
| May 30, 5:20 PM MDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Denver, Elbert, Logan, Morgan and 2 more | 85 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Yuma County10
- Kit Carson County8
- Logan County7
- Phillips County7
- Washington County7
- Cheyenne County5
- Morgan County5
- Weld County4
- Las Animas County4
- Adams County4
- Arapahoe County4
- Elbert County4
- Sedgwick County4
- Baca County3
- Denver County3
- Bent County3
- Kiowa County3
- Otero County3
- Prowers County3
- Douglas County2
- El Paso County2
- Lincoln County2
- Crowley County2
- Huerfano County2
- Pueblo County1
- Alamosa County1
- Boulder County1
- Broomfield County1
- Clear Creek County1
- Costilla County1
- Custer County1
- Fremont County1
- Gilpin County1
- Grand County1
- Jefferson County1
- Larimer County1
- Park County1
- Summit County1
- Teller County1
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.