Air Stagnation Advisories in Washington
154 air stagnation advisories 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 air stagnation advisories reaches back to 2005.
Air Stagnation Advisories by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Air Stagnation Advisories
- 154
- Busiest year
- 201312 air stagnation advisories
- Average year
- 8over 20 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Yakima County55
- Douglas County44
- Okanogan County44
- Chelan County43
- Kittitas County42
- Grant County40
- Klickitat County40
- Benton County39
- Ferry County39
- Franklin County39
- Spokane County39
- Walla Walla County39
- Pend Oreille County38
- Stevens County38
- Columbia County37
- Lincoln County37
- Adams County34
- Asotin County24
- Garfield County24
- Whitman County22
- San Juan County12
- Clark County4
- Cowlitz County3
- Pacific County1
- Skamania County1
- Wahkiakum County1
The latest air stagnation advisories
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 2, 9:56 AM PST | Air Stagnation Advisory | PQR | Clark, Cowlitz | 5 days |
| Jan 15, 2:27 PM PST | Air Stagnation Advisory | PQR | Clark, Cowlitz | 8 days |
| Jan 15, 11:17 AM PST | Air Stagnation Advisory | OTX | Adams, Douglas, Grant, Lincoln, Okanogan, Spokane | 5 days |
| Jan 13, 12:24 PM PST | Air Stagnation Advisory | OTX | Chelan, Douglas, Ferry, Okanogan, Pend Oreille, Spokane and 1 more | 7 days |
| Jan 12, 11:51 AM PST | Air Stagnation Advisory | PDT | Benton, Columbia, Franklin, Kittitas, Klickitat, Walla Walla and 1 more | 8 days |
| Jan 8, 3:37 PM PST | Air Stagnation Advisory | PQR | Clark | 7 days |
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.