The majority of the United States will experience chilling temperatures due to a blast of arctic air from Canada. The Midwest ...

The severe weather pattern is caused by disruption of the polar vortex, which normally remains uniform over the North Pole.

This article originally published at Polar vortex sends another arctic blast barreling toward Texas. In today's edition: ...

A crippling winter storm that could paralyze parts of the Southern and Central U.S. this weekend, and some of the effects ...

With San Antonio expecting its first official freeze of the season in less than 24 hours, meteorologists are already eyeing ...

High above the Arctic, scientists are tracking a major change in the atmosphere this January, an event similar to what ...

The Texas Panhandle is set to see the first of this frigid air blowing in from the north. By Thursday night, January 8, snow ...

The frigid weather will be felt through the Great Lakes Region and the Northeast, but is even extending to Texas. Multiple U.S. states face unusually cold temperatures due to a shifting polar vortex.

Alabama braces for another polar vortex blast bringing well below freezing temperatures. How cold will temperatures get? Here ...

Michigan is set for several days of frigid temperatures and heavy lake-effect snow as Arctic air continues its slow march across the eastern U.S.

Cross-polar flow describes a unique meteorological setup most common during the winter. This is often responsible for many of the intense Arctic outbreaks that occur in the U.S. each decade. For cross ...