Northwest wildfire smoke to blanket Seattle, Portland

Key Points:

• Numerous large wildfires are currently burning across eastern Oregon and Washington, with significant destruction in the Spokane metro area, and additional fires in Idaho, Montana, and Utah.
• Changing wind patterns will push ground-level wildfire smoke westward into western Washington and Oregon cities such as Seattle, Portland, Tacoma, and Salem, causing unhealthy air quality that could persist through midweek.
• The same weather pattern drawing smoke west is also raising temperatures, with highs near 90°F in Seattle and upper 90s in Portland, though dense smoke may slightly reduce daytime heat.
• While cooler temperatures and potential monsoon thunderstorms are forecast for the weekend and next week, rain could trigger dangerous flash flooding and debris flows in recently burned areas.
• Wildfire smoke poses serious health risks due to fine particulate matter; residents are advised to monitor local air quality indexes and limit outdoor exposure, especially vulnerable groups such as children, the elderly, and those with respiratory or heart conditions.