Friday, May 19, 2023

When will the smoke in Central and Eastern WA clear out?

Smoke from the Canadian wildfires continues to impact Central and Eastern Washington, with monitors observing Air Quality Index values corresponding to Moderate and Unhealthy for Sensitive Group levels.


Due to the residual smoke lingering in the region, the Air Quality Alert has been expanded to include all Central and Eastern Washington counties. The Air Quality Alert will expire tomorrow morning at 10am.

Some haze and smoke will persist throughout today, and temperatures will get hot, but air quality should slowly improve thanks to a push from southwest winds. We'll return to our normal May air quality conditions by the end of the weekend with the arrival of a cold front.  The latest FireWork model forecast animation below shows the smoke plume moving away from Washington State:


  1. I am an asthmatic of 33 years old, born premature at 6 1/2 months. My lungs are sensitive to everything and my allergies are the same. I can not thank you enough for this blog. I rely on this and FMLA during smoke season to protect my health with the knowledge you provide and update us with. My dad has COPD and lives in the woods off the grid and so I help look out for him too. Thank you for being consistent and often posting.

  2. I feel bad for the East Coast; they get to experience the torment we went through last year. :(


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