Residents in Seattle and across Puget Sound are waking up to hazy skies and reduced visibility as wildfire smoke continues to affect air quality. The primary source is the Bear Gulch Fire inside ...

Many across western Washington noticed hazy skies on Monday afternoon into the evening. The air quality forecast for the region is expected to remain at a healthy level through the week before ...

Seattleites awoke to find ash falling from the skies Tuesday morning, as Washington wildfires threatened communities on both sides of the Cascades. Two growing fires -- one near Crystal Mountain ski ...

Wildfire smoke from Washington, Oregon, and British Columbia has severely impacted air quality in eastern Washington. Winds from the east and northeast have largely contained the smoke east of the ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) For most of the past decade, forecasters have been able to use satellites to track ...

BISMARCK, N.D. (AP) — Much of the Upper Midwest on Saturday was dealing with swaths of unhealthy air because of drifting smoke from Canadian wildfires, covering the northern region of the U.S. at a ...

There’s one night of the year where celebrations across the United States light up the map like no other. It’s the Fourth of July — when fine particulates fill the air. The impact fireworks can have ...