Nearly all of Michigan received an extreme cold warning yesterday. A surge of arctic air known as the polar vortex is the cause behind this abnormally cold weather. According to the National Weather ...

It's going to get cold in Tennessee. Meteorologists predict freezing temperatures for much of the state. Here's the latest.

People living "basically anywhere from the Rockies eastward" will see extremely cold temperatures over the next several days, ...

Stakeholders and opponents descended on the Calgary offices of the Alberta Energy Regulator as a hearing over the controversial Grassy Mountain project resumed. The AER is deciding whether to approve ...

The Arctic polar vortex has been pushing icy winds throughout the nation ... In an update from Atmospheric and Environmental Research (AER), a forecast map showed "normal to above normal temperatures" ...

A recent study explains how warmer temperatures at the top of the planet destabilize the jet stream and allow colder air to ...

An area stretching from Texas to Tennessee is bracing for the expected arrival of freezing rain and snow, as some other parts ...

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 ...