After a weekend of hazy skies, air quality throughout the state is improving as onshore flow pushes the smoke away. Most of the region observed moderate air quality over the weekend, with a few locations experiencing a few hours of USG and Unhealthy air quality.
Higher elevations observed smoke as it was transported aloft from Oregon and began mixing down to the surface--the air quality sensor at the Mt. Rainier Visitor Center observed increased PM2.5 concentrations starting last Thursday.
Monitoring sites in Vancouver recorded elevated PM2.5 concentrations on Thursday and Friday before conditions improved on Sunday.
Smoke from fires in Central Idaho impacted Southeast Washington over the weekend, and air quality is currently unhealthy in Clarkston. Smoke should decrease throughout the day today.
Outlook: Smoke will continue to move out of the region today. However, dry and windy conditions through this evening can lead to rapid fire spread. Please continue to be cautious with any potential fire sources. There are a couple fires to note--the ~100 acre Swauk Creek Fire 13 miles NE of Cle Elum began late yesterday afternoon and the Huckleberry Ridge Fire south of Pe Ell is now estimated at 293 acres. While there may be occasional localized smoke impacts, we don't expect substantial smoke production from these fires.
This week brings cooler temperatures and the potential for light precipitation across the state. Barring any additional fire starts, air quality should continue to improve. Enjoy the cooler temperatures and improved air quality!
Thank you Beth, great work.
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