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

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

Welcome to 'false spring,' New Jersey! A polar vortex split could bring bitter cold back to NJ, but how cold will it get and when? The latest forecast ...

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

Add Yahoo as a preferred source to see more of our stories on Google. There is a major weather pattern change underway across the U.S. As we get into next week, the storm track looks really ...

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

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

When the polar vortex stumbles, the weather at ground level can pivot from mild to brutal in a matter of days. A circulation that usually spins quietly above the pole can suddenly send lobes of Arctic ...

Don't be fooled by the string of uneventful weather — the polar vortex is rebooting and will take another swing, or several, at the greater Philadelphia region, leading to a turbulent weather pattern ...

In a new weekly update for pv magazine, Solcast, a DNV company, reports that destabilized polar circulation in February produced wet and cloudy conditions in some parts of North America, while the ...