Smoky and orange skies could be a new normal in the summer months in the Midwest and Northeast U.S., but it isn't a seasonal occurrence yet.

Orange skies and heavy smoke covered large parts of the U.S. on Thursday as Canada and Minnesota grapple with wildfires. Hazardous air quality is expected to continue.

US states near the Canadian border including Minnesota, Wisconsin, Michigan and Illinois were particularly choked, while the Northeast including New York was also experiencing…