A winter buzzword, explained.

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

What is polar vortex and how much snow is expected in US? A winter storm linked to polar vortex disruption has impacted millions. Snow, ice, and cold are affecting travel, power supply, and daily life ...

You've probably come across the words polar vortex a few times already during this winter season. Maybe you're familiar with what it truly means, or maybe not. We're here today talking about exactly w ...

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 ...

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