Mesoscale Discussions in Washington
245 mesoscale discussions since 1986. 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 since 1986. Tap one for its archive.
- Mesoscale Discussions
- 245
- Busiest year
- 200624 mesoscale discussions
- Average year
- 10over 24 years on file
Over time
By year
Mesoscale discussions are counted from 2003.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Asotin County100
- Columbia County98
- Garfield County96
- Walla Walla County93
- Whitman County82
- Benton County76
- Klickitat County71
- Franklin County70
- Spokane County70
- Adams County61
- Yakima County60
- Lincoln County58
- Grant County49
- Stevens County49
- Skamania County48
- Pend Oreille County47
- Douglas County46
- Kittitas County46
- Ferry County42
- Chelan County37
- Clark County37
- Okanogan County31
- Lewis County27
- Cowlitz County25
- King County24
- Snohomish County23
- Pierce County22
- Skagit County21
- Thurston County19
- Wahkiakum County17
- Mason County16
- Pacific County15
- Whatcom County15
- Grays Harbor County13
- Jefferson County12
- Kitsap County12
- Clallam County10
- Island County7
- San Juan County4
The latest mesoscale discussions
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 3:04 PM PDT | Mesoscale Discussion | SPC | Chelan, Douglas, Ferry, Grant, Lincoln, Okanogan and 4 more | 116 min |
| Jul 23, 12:19 PM PDT | Mesoscale Discussion | SPC | Asotin | 116 min |
| May 28, 8:01 PM PDT | Mesoscale Discussion | SPC | Adams, Asotin, Benton, Chelan, Columbia, Douglas and 14 more | 89 min |
| May 28, 5:42 PM PDT | Mesoscale Discussion | SPC | Adams, Asotin, Benton, Chelan, Columbia, Douglas and 14 more | 63 min |
| May 28, 2:34 PM PDT | Mesoscale Discussion | SPC | Adams, Asotin, Columbia, Ferry, Garfield, Lincoln and 4 more | 116 min |
| May 28, 11:29 AM PDT | Mesoscale Discussion | SPC | Klickitat | 3 hr |
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. Rebuilt daily.