Alert archive / Washington / Air Stagnation Advisories
Air Stagnation Advisories in Washington, 2020
9 air stagnation advisories in 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 air stagnation advisories reaches back to 2005.
Air Stagnation Advisories by county
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Air Stagnation Advisories
- 9
- Busiest month
- October4 air stagnation advisories
- Busiest day
- October 26, 20202 air stagnation advisories
Over time
By month
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 |
|---|---|---|---|---|
| Oct 1, 12:31 PM PDT | Air Stagnation Advisory | PQR | 46 hr | |
| Oct 26, 9:36 AM PDT | Air Stagnation Advisory | PDT | Kittitas, Klickitat, Yakima | 4 days |
| Oct 26, 10:49 AM PDT | Air Stagnation Advisory | OTX | Chelan, Douglas, Ferry, Grant, Okanogan, Pend Oreille and 2 more | 4 days |
| Oct 31, 2:56 PM PDT | Air Stagnation Advisory | OTX | Chelan, Douglas, Ferry, Grant, Okanogan | 4 days |
| Nov 25, 9:45 AM PST | Air Stagnation Advisory | PDT | Yakima | 5 days |
| Nov 30, 1:57 PM PST | Air Stagnation Advisory | PQR | 8 days | |
| Nov 30, 2:32 PM PST | Air Stagnation Advisory | OTX | Adams, Chelan, Douglas, Ferry, Grant, Lincoln and 4 more | 9 days |
| Dec 1, 2:20 PM PST | Air Stagnation Advisory | PDT | Benton, Columbia, Franklin, Kittitas, Klickitat, Walla Walla and 1 more | 7 days |
| Dec 23, 2:46 PM PST | Air Stagnation Advisory | PQR | 24 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
The busiest days
Days with the most alerts issued, by UTC date.
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.