... Air stagnation advisory remains in effect until 10 am PST Tuesday below 4000 feet...
An air stagnation advisory below 4000 feet remains in effect until 10 am PST Tuesday.
* Timing: through at least Tuesday morning.
* Locations include: valleys of the east slopes of the Cascades including Leavenworth... wintrhop... and the Lake Chelan area. Much of central and north central Washington including Wenatchee... Waterville... Republic and Omak. The valleys of the northeast Washington mountains including Colville... Chewelah... and Cusick.
* Impacts: air quality will likely decrease through the weekend into early next week.
Precautionary/preparedness actions...
An air stagnation advisory indicates that due to limited movement of an air mass across the advisory area... pollution has the potential to increase to dangerous levels. Please check with you local air quality agency for possible restrictions in your area.