Folks across the central, eastern and southern U.S. are about to experience potentially record warmth over the next week or ...

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

The infamous weather pattern is actually partly influencing our weather as February ends. And it may again throughout the month of March.

While forecasters can't yet say for sure, a warmer stretch of weather appears likely for much of the nation. Here's when to expect a warm-up.

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.

While all the warmth of the past few days may make it feel like spring is in full effect, forecasters are saying otherwise.

The phenomenon could significantly disrupt U.S. weather later this month.

Add Yahoo as a preferred source to see more of our stories on Google. Michigan is set for several days of frigid temperatures and heavy lake-effect snow as Arctic air continues its slow march across ...

The next step upward to spring weather is showing in the extended forecast. This week and much of next week look and feel ...

The polar vortex is sending arctic blasts and chilly temperatures to most of the United States, and states from Texas to Oklahoma could see snow, sleet and ice. As of Wednesday, Jan. 21, millions of ...