Frigid temperatures are expected to impact much of the central and eastern United States in the coming weeks. The first of three polar vortex systems is expected this month, according to AccuWeather.

High above the North Pole, in a slice of atmosphere rarely noticed and even less understood, a transformation is underway. Over the next 10 days, changes in the stratosphere will upend weather ...

Nearly all of New England has seen its share of frigid cold days and record mountain snow so far this November — and looking ahead, we’re about to get hit with another blast of Arctic air from a ...

The polar vortex, a high-altitude ring of westerly winds that usually keeps Arctic air locked near the pole, is showing signs of unusual weakening. If that circulation falters or collapses, the result ...

COLUMBUS, Ohio — Frigid air that normally stays trapped in the Arctic has escaped, plunging deep into central Ohio and much of the northern 2/3 of the United States and bringing teeth-chattering but ...

A polar vortex collapse has been forecast to hit within weeks. The weather phenomenon will hit in mid-March and will affect the United States and Canada predominantly. It will be the second disruption ...

In an early sign of the winter weather that's coming, the dreaded polar vortex is making news yet again. The polar vortex is "ramping up from its summer slumber," said meteorologist Judah Cohen in an ...

Despite a warming climate, bone-chilling winter cold can grip parts of the U.S. In a study appearing in Science Advances, researchers found that two specific patterns in the polar vortex, a swirling ...

STATEN ISLAND, N.Y. — Despite Staten Island Chuck’s recent forecast for an early spring, it appears that New York City residents must brace for yet another wave of Arctic air. Last month, the five ...

Like much of the U.S., Wisconsinites woke up Tuesday morning to bitter cold conditions. Many schools and colleges throughout the Milwaukee area closed as the area braced for the dangerous freezing ...