Hazard Report Provided By forecast.weather.gov

URGENT - WEATHER MESSAGE
National Weather Service Spokane WA
515 AM PST Fri Jan 16 2026

WAZ038-041-043-047>049-162115-
/O.CON.KOTX.AS.Y.0001.000000T0000Z-260121T0000Z/
Okanogan Highlands-Wenatchee Area-Okanogan Valley-Central Chelan
County-Western Chelan County-Western Okanogan County-
Including the cities of Mazama, Conconully, Highway 20 Wauconda
Summit, Stevens Pass, Republic, Sherman Pass, Entiat, Chesaw
Road, Okanogan, Number 1 Canyon, Bridgeport, Omak, Nespelem,
Methow, Number 2 Canyon, Winthrop, Boulder Creek Road, Brewster,
Leavenworth, Tonasket, Wauconda, Oroville, Stehekin, Wenatchee,
Plain, Pangborn Airport, Holden Village, Disautel Pass,
Inchelium, Loup Loup Pass, Twisp, Chelan, and Cashmere
515 AM PST Fri Jan 16 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...Mazama, Conconully, Highway 20 Wauconda Summit, Stevens
  Pass, Republic, Sherman Pass, Entiat, Chesaw Road, Okanogan,
  Number 1 Canyon, Bridgeport, Omak, Nespelem, Methow, Number 2
  Canyon, Winthrop, Boulder Creek Road, Brewster, Leavenworth,
  Tonasket, Wauconda, Oroville, Stehekin, Wenatchee, Plain, Pangborn
  Airport, Holden Village, Disautel Pass, Inchelium, Loup Loup Pass,
  Twisp, Chelan, and Cashmere.

* 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.

&&

$$

Hazard Report Provided By forecast.weather.gov