Smoke has already been detected drifting in through Montana, North Dakota and northern Minnesota, where air quality alerts have been issued.

More than 166 fires are actively burning across Canada, according to the Canadian Interagency Forest Fire Centre.

Manitoba Premier Wab Kinew said the fires have forced 17,000 people across several communities to flee.

Clouds of dust drifting from the Sahara Desert over the Atlantic Ocean could make for unusual-looking sunrises and sunsets, as well as potentially drier weather, over Florida and parts of the southea...

Smoke from wildfires in Canada has begun drifting across the border into the United States, raising concerns on Friday about possible health hazards in the Upper Midwest, the authorities said.

National Weather Service officials are expecting patchy smoke from Canadian wildfires to move into the Chicago area Friday along with a 30% chance of showers and thunderstorms.