According to the Puget Sound Clean Air Agency, air quality in the region will be moderate to unhealthy for children, the elderly and individuals with respiratory illnesses over the
weekend. Easterly winds are blowing wildfire smoke from eastern Washington this way.
Try to find clean indoor air if possible. If you experience respiratory distress, you should speak with your doctor. The Clean Air Agency offers additional tips.
King County issued a burn ban for all cities in the county, starting Friday, Sept. 9. Recreational fires, such as those in backyard fire pits and outdoor fireplaces are banned in Bellevue,
as well as all neighboring jurisdictions, until further notice. Outdoor cooking in approved containers such as barbecue grills is still allowed.
A storm system should help clear out the smoke late Sunday or Monday.
Original source can be found here.