Hazard Report Provided By forecast.weather.gov

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
1048 AM PST Sun Jan 18 2026

WAZ037-038-041-043-047>049-202000-
/O.CON.KOTX.AS.Y.0001.000000T0000Z-260121T0000Z/
Northeast Mountains-Okanogan Highlands-Wenatchee Area-Okanogan
Valley-Central Chelan County-Western Chelan County-Western
Okanogan County-
Including the cities of Number 1 Canyon, Colville, Ione, Pangborn
Airport, Springdale-Hunters Road, Cashmere, Disautel Pass,
Highway 20 Wauconda Summit, Conconully, Twisp, Entiat, Okanogan,
Boulder Creek Road, Number 2 Canyon, Leavenworth, Chelan, Deer
Park, Metaline, Wenatchee, Brewster, Chewelah, Omak, Oroville,
Methow, Winthrop, Wauconda, Newport, Kettle Falls, Loup Loup
Pass, Plain, Stehekin, Northport, Stevens Pass, Nespelem, Holden
Village, Fruitland, Mazama, Sherman Pass, Metaline Falls,
Bridgeport, Flowery Trail Road, Tiger, Republic, Chesaw Road,
Orin-Rice Road, Inchelium, and Tonasket
1048 AM PST Sun Jan 18 2026

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
TUESDAY...

* WHAT...Stagnant conditions will have potential to trap pollutants
  near the ground with deteriorated air quality.

* WHERE...Number 1 Canyon, Colville, Ione, Pangborn Airport,
  Springdale-Hunters Road, Cashmere, Disautel Pass, Highway 20
  Wauconda Summit, Conconully, Twisp, Entiat, Okanogan, Boulder
  Creek Road, Number 2 Canyon, Leavenworth, Chelan, Deer Park,
  Metaline, Wenatchee, Brewster, Chewelah, Omak, Oroville, Methow,
  Winthrop, Wauconda, Newport, Kettle Falls, Loup Loup Pass, Plain,
  Stehekin, Northport, Stevens Pass, Nespelem, Holden Village,
  Fruitland, Mazama, Sherman Pass, Metaline Falls, Bridgeport,
  Flowery Trail Road, Tiger, Republic, Chesaw Road, Orin-Rice Road,
  Inchelium, and Tonasket.

* WHEN...Until 4 PM PST Tuesday.

* 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.

&&

$$

OTX

Hazard Report Provided By forecast.weather.gov