Some smoke also may be drifting over the Tri-Cities from other fires in the area, according to the National Weather Service.

Canadian wildfire smoke has returned to parts of Wisconsin and may last through Monday morning. Then comes more extreme heat ...

The biggest impact smoke has on weather is air temperature. The smoke in the air can reflect incoming sunlight back into ...

The 2026 World Cup being hosted by Canada, Mexico and the United States is less than a year away and FIFA's protocols for ...

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Their early findings suggest that wildfire smoke is broadly and especially toxic. Burning trees, soil, and vehicles can throw ...

It's been a hazy few weeks for parts of western and central Canada, as smoke from wildfires burning in Saskatchewan and ...

A growing body of research shows the cascading health impacts of wildfire smoke, from cognitive decline to heart issues.

Long-term exposure to fire smoke-specific fine particulate matter increases the risk for incident heart failure compared to nonfire pollution.

As fires burn through the Northwest, doctors are warning that flames aren’t the only dangers – smoke can also cause ...

Overnight lows will range from the 40s to the mid-50s. Sunday will have areas of smoke and otherwise sunny conditions.

A First Alert for wildfire smoke on Sunday into Monday, which will lead to poor air quality and reduced visibility at times.