Air quality may become unhealthy, so monitoring the Air Quality Index and limiting outdoor activities is advised. An Air Quality Alert is in effect in Snohomish County and several Central Washington counties as wildfires push smoke into the region. Keep an eye on the Air Quality Index and avoid outdoor activities if air quality gets to unhealthy levels. Warm start to fall in SeattleBig picture view:Other than the smoke, we will be looking at sunny skies on Tuesday with warmer afternoon temperatures, in the mid 70s. Sunny skies will prevail through Friday.