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

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 polar vortex is splitting — an exceedingly rare phenomenon for this time of year that will be an unusual driver of warmer ...

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

Wind chills as low as 30 degrees below zero are in the forecast for parts of New England and the interior Northeast.

The cold weather appears to be here to stay in South Jersey, at least until mid-February. A polar vortex is expected to keep ...

Georgia is nearing record highs, but a polar vortex surge could flip the forecast fast with storms and falling temperatures next week.

Snow and blowing snow will continue across Michigan as an Arctic cold front moves through the state. In the Upper Peninsula, ...

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 ...

Intense cold is settling in over the northeastern United States after winter storms brought snow and ice. Will the bitter ...

Scientists are investigating whether a warming Arctic is changing the behavior of the polar vortex, a natural atmospheric phenomenon responsible for recent waves of intense cold air.