An elevated flooding risk persists on Sunday for some parts of the Southeast as Alabama, Georgia and the Florida Panhandle brace for heavy rainfall.

States across the U.S. are feeling the impact of the Canadian wildfires as air quality takes a hit from the smoke, according to a government website that tracks air quality in the United States. As of Monday,

Millions from the Great Lakes to the Northeast are under air quality alerts – with the toxic smoke prompting a ground delay at Boston's Logan airport.

Canadian wildfires burning across northern Manitoba and Saskatchewan are sending smoke through central Canada, the Great Lakes region and the northeastern United States, reducing air quality and visibility in major cities.

An air quality alert is in effect for all of Massachusetts as smoke from Canadian wildfires descends into the Boston area.

Hundreds of wildfires still burning in Canada are expected to undermine air quality across the Upper Midwest and Northeast into Tuesday. At least 738 wildfires are currently burning in Canada, with at least 201 out of control,

Air quality concerns continue to expand from the Upper Midwest through the Great Lakes region and into the Northeast and New England as wildfire smoke from Canada drifts southward into the U.S.