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.

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 ...

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

Add Yahoo as a preferred source to see more of our stories on Google. There has been a persistent surge of Arctic air strengthening its hold on much of the United States after a significant winter ...

As the National Weather Service explains, the polar vortex is an area of low pressure and cold air that exists over both of Earth’s poles 10 to 30 miles above the surface. The term vortex is used to ...

There's a confounding dilemma for many folks trying to make sense of winter weather in the context of climate change.

As another winter storm hits Western North Carolina and other regions, here's what to know about deciphering forecaster terms.

Record cold temperatures are once again expected to hit a swath of the country this weekend—even plunging Florida into its coldest stretch of the last 15 years, potentially bringing snow to areas of ...

For folks who long for cold, the weeks after Thanksgiving might just be a tease for some intense Arctic cold that could arrive later in December.