Extreme cold warnings span several eastern states as of Friday, with meteorologists warning of frigid wind chills.

Columbus is now expected to get 2-4 inches of snow on Feb. 6, an increase from earlier forecasts. A cold weather advisory with wind chills as low as -15 degrees follows on Feb. 7.

During winter in the Northern Hemisphere, the polar vortex can often expand and send cold air south, often referred to as an ...

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

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

A strong polar vortex moved across North America not long ago. Temperatures around Niagara Falls plunged below −20°C, far ...

Winter Storm Fern, which brought 14 inches of snow to Cornell's campus, was driven by Arctic air interacting with a low-pressure system and raises questions about the impact of climate change on ...

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

Niagara Falls turns into a frozen wonderland as a powerful polar vortex pushes temperatures below -20°C, freezing mist ...

There are strong upper-level winds rotating around the North Pole that normally keep all cold air contained, but in the ...

Ontario may be one of the coldest places on the planet this Friday as an airmass is expected to be centred over the province, says meteorologist Ryan Maue. Maue, former National Oceanic and ...

Temperatures will start free-falling into the single digits after Friday morning, likely the deepest freeze so far this winter.