Air Quality Alert issued August 7 at 11:41AM PDT by NWS Spokane WA
发布日期：2026-08-07T19:16+00:00
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 Adams, Asotin, Chelan, Douglas, Ferry, Garfield, Grant, Lincoln, Okanogan, Pend Oreille, Spokane, Stevens, and Whitman Counties until further notice due to current and expected smoke from regional fires. Critical fire weather this weekend will produce significant smoke from ongoing and emerging fires. Particulate matter (PM2.5) may reach Very Unhealthy levels for areas directly downwind from active wildfires. Other areas may reach Unhealthy for Sensitive Groups or worse. Intermittent clearing may occur due to windy conditions, but smoke production continues to be significant. When air quality is Unhealthy, everyone should reduce exposure. Limit time outside, avoid strenuous outdoor activity, and follow tips for cleaner indoor air. When air quality is Very Unhealthy, everyone should reduce exposure. Stay inside and filter indoor air to keep it cleaner. Go elsewhere for cleaner air, if needed.
Red Flag Warning issued August 7 at 11:40AM PDT until August 8 at 11:00PM PDT by NWS Spokane WA
发布日期：2026-08-07T18:40+00:00
A dry cold front will push toward and through the area Friday and Saturday, bringing breezy west to southwesterly winds. Winds will be strongest near the Cascades and Western Columbia Basin. Wind speeds on Friday and Saturday will be similar, though winds on Saturday will be more widespread, expanding into the eastern Columbia Basin. Combined with low afternoon relative humidity values, poor to fair humidity recoveries at night, hot temperatures, and dry fuels, the winds will bring critical fire weather conditions. * Affected Area: East Washington Central Cascades (Zone 696), East Portion of North Cascades National Park/Lake Chelan National Recreation Area (Zone 697), East Washington North Cascades (Zone 698), Foothills of Northeast Washington (Zone 701), Okanogan Valley (Zone 703), Methow Valley (Zone 704), Foothills of Central Washington Cascades (Zone 705), 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: For central Washington, west winds 10 to 20 mph with gusts up to 30 mph. For eastern Washington, southwest to west 10 to 20 mph with gusts up to 25 mph. * Relative Humidities: 8 to 20 percent in the valleys and 20 to 30 percent over the higher terrain. * Impacts: Rapid fire spread is possible with any new or ongoing fires.
