Ohio and the Great Lakes are bracing for another cold shot later this month — down to single digits in places. When to expect ...

Michigan and the Great Lakes are bracing for another cold shot later month as a polar vortex split in the stratosphere nudges ...

DC swings from a warm 50 weekend to a cold start to the week, with highs in the 30s and a wintry mix as the polar vortex and ...

High above Earth, powerful jet streams act like invisible barriers that keep the freezing polar vortex trapped near the ...

When you flip the thermostat down on a sweltering afternoon, you might not think about what's happening five or six miles above your head. Yet the behavior of high-altitude winds called jet streams is ...

When Punxsutawney Phil popped up and saw his shadow on Feb. 2, a collective groan rippled across the Eastern United States, where freezing temperatures, ice and snow have cast a big chill for days.

The polar vortex is splitting — an exceedingly rare phenomenon for this time of year that will be an unusual driver of warmer temperatures, as the calendar flips to March and meteorological spring.

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...

Over the past decade, southern Australia has suffered numerous extreme weather and climate events, such as record-breaking heat waves, bushfires, two major droughts and even flash flooding. While ...

Florida has endured a winter few could have predicted. Since early November, the state has endured at least three rounds of ...

If you’re a climate-change denier in the eastern U.S., including the president, then the past few weeks have been a dream. It’s cold and snowy where I live, you might say, colder and snowier than in ...