Canadian wildfires threaten towns, blow smoke into U.S.

Smoke from Canada wildfires pose health risk

Smoke from Canadian wildfires descends on Upper Midwest

Wildfires in Canada causing air quality alerts across parts of the US

#Florida haze caused by wildfires in Canada #shorts #10tampabay

Canadian wildfires send dangerous smoke to Minnesota

Tips to prepare your home during air quality concerns

Minnesota sends crew to help Canada rein in out-of-control wildfires

Washington among US states sending firefighting resources to Canada amid wildfires

Wildfires in Canada continue to rage

NYC AIR QUALITY: Canadian wildfire smoke creates thick haze across New York City

Wildfires in parts of Canada causing hazy skies in Ohio

Giant plume of wildfire smoke lights up sky across Alberta, Canada

Dense smoke from Canada wildfires blankets skies over U.S. cities; million under air quality alerts

Canadian wildfires cause hazy skies over Minneapolis

Hazardous smoke from wildfires hangs over millions in Canada, US

Hazardous smoke from wildfires hangs over millions in Canada, US

Hazy sky over St. Pete Beach, Florida, caused by Canadian wildfire smoke

WeatherMinds: Wildfire season

Devastation and smoke rise from the ashes of California wildfires

Wildfires in Canada bring smoke to United States

Minnesota air filled with wildfire smoke on Tuesday

Lynx, Liberty game plans go up in smoke due to raging Canadian wildfires

Hazardous air quality conditions in New York

Will Oregon get a break from the smoke? And where's former Hurricane Hilary?

Haze blankets Denver area Tuesday

Summer wildfire and drought outlook for Minnesota

Early-season wildfire smoke in western Washington a reminder to prepare for summer

Weather Impact Day: Wildfire smoke causes poor air quality Tuesday

Breathing wildfire smoke like smoking cigarettes imperfect, but effective comparison

Wildfires raging across central and western Canada send hazardous smoke to U.S.

Smoke, haze cover New York City — expected to linger for next few days

Wildfire smoke from Canada lingers over Colorado

Amid another air quality alert, Minnesotans reflect on lost summer

Air quality worsens in eastern US as Canadian wildfire smoke hangs over Midwest

Air quality alert lingers through Thursday