Alert archive / Washington / Mesoscale Discussions / 2026
Mesoscale Discussions in Washington, May 2026
4 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
- 4
- Busiest day
- May 28, 20262 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, Pacific Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 11:29 AM PDT | Mesoscale Discussion | SPC | Klickitat | 3 hr |
| May 28, 2:34 PM PDT | Mesoscale Discussion | SPC | Adams, Asotin, Columbia, Ferry, Garfield, Lincoln and 4 more | 116 min |
| May 28, 5:42 PM PDT | Mesoscale Discussion | SPC | Adams, Asotin, Benton, Chelan, Columbia, Douglas and 14 more | 63 min |
| May 28, 8:01 PM PDT | Mesoscale Discussion | SPC | Adams, Asotin, Benton, Chelan, Columbia, Douglas and 14 more | 89 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Klickitat County3
- Adams County3
- Asotin County3
- Columbia County3
- Ferry County3
- Garfield County3
- Lincoln County3
- Pend Oreille County3
- Spokane County3
- Stevens County3
- Whitman County3
- Benton County2
- Chelan County2
- Douglas County2
- Franklin County2
- Grant County2
- Kittitas County2
- Okanogan County2
- Walla Walla County2
- Yakima County2
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.