Air Stagnation Advisory
Status
New Event Active alertStart Time
Mon 12/29/2025 02:45 PM ESTEnd Time
Thu 01/01/2026 03:00 PM ESTSignificance
AdvisoryImpacts
Low impact
Locations Affected
Spokane, WA ∙ Wenatchee, WA ∙ Omak, WA ∙ Miles, WA ∙ Espanola, WA ∙ Chattaroy, WA ∙ Asotin, WA ∙ Kingston, ID ∙ Cedonia, WA ∙ Four Lakes, WAFull Alert Message
URGENT - WEATHER MESSAGE National Weather Service Spokane WA 1145 AM PST Mon Dec 29 2025 ...AIR STAGNATION ADVISORY IN EFFECT UNTIL NOON PST THURSDAY... * WHAT...Stagnant conditions will have potential to trap pollutants near the ground with deteriorated air quality. * WHERE...Portions of North and North Central Idaho and North Central, Northeast, and Southeast Washington. * WHEN...Until noon PST Thursday. * IMPACTS...Periods of air stagnation can lead to the buildup of pollutants near the surface. PRECAUTIONARY/PREPAREDNESS ACTIONS... Buildup of fine pollution particles can be harmful to those sensitive to air pollution including people with lung and heart problems, people with diabetes, children and the elderly.
Technical Header
IDZ004-026-027-WAZ032-036>038-041-043-047>049-012000- /O.NEW.KOTX.AS.Y.0002.251229T1945Z-260101T2000Z/ Central Panhandle Mountains-Lewiston Area-Lewis and Southern Nez Perce Counties-Lower Garfield and Asotin Counties-Spokane Area- Northeast Mountains-Okanogan Highlands-Wenatchee Area-Okanogan Valley-Central Chelan County-Western Chelan County-Western Okanogan County- Including the cities of Spokane Valley, Winthrop, Pinehurst, Wauconda, Oroville, Clarkston, Brewster, Tiger, Boulder Creek Road, Gifford, Kamiah, Disautel Pass, Okanogan, Deer Park, Highway 20 Wauconda Summit, St. Maries, Soldiers Meadow Road, Chelan, Loup Loup Pass, Culdesac, Tonasket, Sherman Pass, Conconully, Fernwood, Chewelah, Holden Village, Kellogg, Chesaw Road, Methow, Mazama, Dobson Pass, Fourth Of July Pass, Kettle Falls, Nespelem, Twisp, Inchelium, Newport, Omak, Lookout Pass, Pangborn Airport, Metaline, Wallace, Davenport, Metaline Falls, Cashmere, Peck, Stevens Pass, Springdale-Hunters Road, Pomeroy, Winchester, Colville, Number 2 Canyon, Lewiston, Cheney, Plain, Airway Heights, Northport, Fairfield, Downtown Spokane, Stehekin, Bridgeport, Mullan, Flowery Trail Road, Craigmont, Entiat, Lewiston Grade, Rockford, Fruitland, Wenatchee, Leavenworth, Alpowa Summit, Republic, Number 1 Canyon, Nezperce, Osburn, Lapwai, Ione, and Orin-Rice Road 1145 AM PST Mon Dec 29 2025
