از: 31/07/2026, 12:56
به: 31/07/2026, 23:00

...PARTICULARLY DANGEROUS SITUATION (PDS) RED FLAG IN EFFECT 2PM UNTIL 8PM SATURDAY FOR THE FOLLOWING AREAS: KITTITAS VALLEY (ZONE 690) - LOWER COLUMBIA BASIN OF OREGON AND WASHINGTON (ZONE 691) - NORTHERN BLUE MOUNTAINS OF OREGON AND WASHINGTON (ZONE 692) - CANYON GRASSLANDS OF WALLOWA COUNTY AND SOUTHEAST WASHINGTON GRANDE RONDE VALLEY (ZONE 693) - GRANDE RONDE VALLEY OF OREGON (ZONE 694) - EAGLE CAP WILDERNESS (ZONE 695) - JOHN DAY VALLEY (ZONE 696) - AND CENTRAL MOUNTAINS OF OREGON (ZONE 700)... .A strong cold front will pass through the Pacific and Inland Northwest on Saturday. Very warm, dry, and windy conditions will result, leading to extreme fire weather concerns and the potential for rapid fire spread for any new or ongoing fires. * AFFECTED AREA...Fire Weather Zones 690 Kittitas Valley, 691 Lower Columbia Basin of Oregon, 691 Lower Columbia Basin of Washington, 692 Northern Blue Mountains of Oregon, 692 Blue Mountains of Washington, 693 Canyon Grasslands of Wallowa County, 693 Southeast Washington Grande Ronde Valley, 694 Grande Ronde Valley of Oregon, 695 Eagle Cap Wilderness, 696 John Day Valley and 700 Central Mountains of Oregon. * TIMING...From 11 AM to 11 PM PDT Saturday. * WINDS...West 20 to 30 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...This is a PARTICULARLY DANGEROUS SITUATION as extreme Fire Weather concerns will be present. Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.

از: 31/07/2026, 14:03
به: 01/08/2026, 00:00

A strong cold front will sweep across the Inland Northwest Saturday. Very warm dry conditions and gusty winds will contribute to rapid fire spread for any new or ongoing fires. ...PARTICULARLY DANGEROUS SITUATION (PDS) RED FLAG IN EFFECT 2 PM UNTIL 8 PM SATURDAY FOR THE FOLLOWING AREAS: OKANOGAN VALLEY (ZONE 703) - COLVILLE RESERVATION (ZONE 702) - WATERVILLE PLATEAU (ZONE 706) - WESTERN COLUMBIA BASIN (ZONE 707) - EASTERN COLUMBIA BASIN (ZONE 708) AND LOWER PALOUSE AND SNAKE RIVER (ZONE 709). WIND GUSTS OF 40 TO 50 MPH COMBINED WITH HUMIDITY LEVELS OF 15 TO 20 PERCENT WILL CREATE EXTREME FIRE WEATHER CONDITIONS... * Affected Area: Colville Reservation (Zone 702), Okanogan Valley (Zone 703), Waterville Plateau (Zone 706), Western Columbia Basin (Zone 707), Eastern Columbia Basin - Palouse - Spokane Area (Zone 708) and Lower Palouse -Snake River (Zone 709). * Winds: Southwest 20 to 30 mph with gusts up to 50 mph. * Relative Humidities: 15 to 20 percent. * Impacts: Ongoing fires or new fire ignitions will be favorable for very rapid fire spread and extreme fire behavior, which would threaten life and property.

از: 31/07/2026, 14:03
به: 01/08/2026, 00:00

A strong cold front will sweep across the Inland Northwest Saturday. Very warm dry conditions and gusty winds will contribute to rapid fire spread for any new or ongoing fires. * Affected Area: Methow Valley (Zone 704) and Foothills of Central Washington Cascades (Zone 705). * Winds: West 15 to 30 mph with gusts up to 50 mph. * Relative Humidities: 20 to 27 percent. * Impacts: Rapid fire spread is expected with any new or ongoing fires.

از: 31/07/2026, 12:29
به: 03/08/2026, 12:00

An Air Quality Alert has been issued by the following agencies: Washington Department of Ecology Colville Confederated Tribes Environmental Protection Agency Spokane Regional Clean Air Agency An Air Quality Alert has been issued for Asotin, Chelan, Douglas, Ferry, Okanogan, Pend Oreille, and Stevens Counties until further notice due to current and expected wildfire smoke from regional fires. Extremely critical fire weather Saturday will produce significant smoke from ongoing and emerging fires. Particulate matter (PM2.5) may reach unhealthy levels through the weekend, especially in areas downwind from active wildfires in Washington, Oregon, and British Columbia. An Air Quality Alert has also been issued for Grant, Lincoln, and Spokane counties until further notice due to expected smoke impacts from ongoing and emerging fires. Shifting winds will likely bring smoke into these counties beginning Saturday evening. PM2.5 may reach unhealthy levels. When air quality is unhealthy, everyone should reduce exposure. Limit time outside, avoid strenuous outdoor activity, and follow tips for cleaner indoor air.