Hazard Report Provided By forecast.weather.gov

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
1145 AM PST Mon Dec 29 2025

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

...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.

&&

$$

JW

Hazard Report Provided By forecast.weather.gov