Air Stagnation Advisory in Effect

The National Weather Service says a stagnant low level air mass will persist over Western Washington through Saturday morning, creating a temperature inversion that traps pollutants near the surface and reduces the air quality prompting an air stagnation advisory. These conditions have prompted stage one burn bans for Mason, Thurston, Kitsap, Pierce, King and Snohomish counties meaning the use of fireplaces and uncertified wood stoves is prohibited along with outdoor burning. An air stagnation advisory means that limited movement of the air mass will allow pollution to increase to dangerous levels. Persons with respiratory illness should follow their physician’s advice for dealing with high levels of air pollution.