A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans.

The vast majority of Americans are about to get an extended taste of frigid Siberian weather. Another polar vortex disruption ...

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

Manatees and sea turtles are vulnerable to cold snaps like the Arctic blasts this month as cold air can drop the temperature ...

ANNAPOLIS, Md. (AP) — A huge swath of the U.S. was blasted with ice, snow and wind on Monday as the polar vortex that dipped south over the weekend kept much of the country east of the Rockies ...

Freezing weather is expected to hit the eastern US in the coming days as the polar vortex moves. Temperatures are expected to remain below average for the south-east and East Coast through the ...