More than 18 million people are under winter weather alerts across the West and Midwest as storms are forecast to bring heavy ...

The Northeast is bracing for its coldest temperatures of the season as an arctic blast hits the Midwest and then moves east.

Snow, high winds and below-average temperatures are sweeping from the Rockies to the Midwest, while an atmospheric river threatens flooding in the Pacific Northwest.

The trip home from Thanksgiving for millions of travelers in the central U.S. will be disrupted by a "significant winter ...

A polar vortex broke, and severe temperatures are set to dominate most of the United States, including the Midwest, in the ...

Another winter storm is expected to bring more snow to the Midwest, further impacting holiday travel that was already ...

The polar vortex is a large upper-level, low-pressure area or circulation that typically resides above the Arctic Circle.

A winter storm is expected to move west to east across the Midwest tonight through Saturday night, bringing a pro ...

The active December winter weather pattern fueled in part by La Niña, is expected to bring another round of fast-moving ...