Deep penetration of cold temperatures and a coastal storm will bring bomb cyclone and polar vortex into your newsfeeds.

WASHINGTON (AP) — Warm Arctic waters and cold continental land are combining to stretch the dreaded polar vortex in a way ...

A polar vortex brings bitterly cold Arctic air into southern Ontario. Here’s what it is and what you can expect.

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

It seems like you cannot mention cold weather in the fall and winter without coming across the phrase “polar vortex.” Meteorologists often refer to this weather element as a potential culprit behind ...