Windchill temperatures as low as minus 30 degrees are a risk to life, forecasters said.

Major cities across the Northeast and Midwest are facing temperatures 10-20 degrees below average, according to forecasters.

Folks in the central and eastern United States may be wondering: Is winter on the way out? Here's what meteorologists say.

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. In an early sign of the winter weather that's coming, the dreaded polar vortex is making news yet again. The polar vortex is ...

The first of what is expected to be three December Polar vortex waves has blanketed the Philadelphia region with frigid temperatures. Many people may not realize what a Polar vortex is, and the ...

TOLEDO, Ohio (WTVG) - The polar vortex is a large area of low pressure encompassing the Earth’s poles. It can weaken and split up, causing the polar jet stream to move southward. This pushes cold ...

There's a confounding dilemma for many folks trying to make sense of winter weather in the context of climate change.

Intense cold is settling in over the northeastern United States after winter storms brought snow and ice. Will the bitter ...

Greetings from Ice Planet Hoth. Indeed, much of the eastern United States resembles the fictional frozen Star Wars world, and now folks there are now enduring some of the worst cold on Earth: "The ...