The polar vortex's blast of Arctic air from Canada brought the season's coldest weather to the majority of U.S. The vortex is ...

The cold temperatures are coming from a not uncommon expansion in the Polar Vortex, which are counter-clockwise rotating air ...

Even if you didn't see snow, the Arctic air blast from the polar vortex is still here. See how to get ready for the cold.

BOSTON (AP) — Residents across the country from the Northern Plains to the tip of Maine are bracing for dangerously low ...

A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...

Snow and winds are likely to disrupt traffic, trigger flight cancellations, and cause headaches for people traveling to D.C.

A lobe of the polar vortex will arrive in the United States this weekend, bringing the lowest temperatures in years and snow ...

NEW ORLEANS — The vast majority of Americans are about to get an extended taste of frigid Siberian weather. Another polar ...

A Siberian chill is on the horizon, threatening to plunge the U.S. into a deep freeze in parts of the east coast ...

So, as the Deep South grapples with the foreign language of snowflake icons making a (for some, repeat) appearance in weather ...