Winter in the United States has always carried an edge of unpredictability, but in recent years, the stakes for wildlife have ...

A persistent May cold pattern is bringing repeated frost risks to the Midwest and Northeast, threatening early crops and blooms. Meteorologists say the chill, linked to a weakened polar vortex and jet ...

Michigan and the Great Lakes are bracing for another cold shot later this month — down to single digits in places — as a polar vortex split in the stratosphere nudges frigid Arctic air southward.