Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States ...

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

Much of the nation east of the Rocky Mountains is hunkered down for what could be the worst winter storm of the season.

In the wake of the historic winter storm that blasted 40 states this weekend, a dome of Arctic air associated with the polar ...

A chilling polar vortex is set to bring snow and ice to the South and East this week. We show where.

Niagara Falls has turned into a breathtaking icy landscape after a powerful polar vortex swept across the region, sending ...

A severe polar vortex has frozen Niagara Falls’ mist into ice, coating cliffs and riverbanks, creating a breathtaking winter spectacle as parts of the river partially freeze and rainbows appear.

WASHINGTON (AP) — Warm Arctic waters and cold continental land are combining to stretch the dreaded polar vortex in a way that will send much of the United States a devastating dose of winter weather ...