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

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

Around 19 million people across the West and Midwest are under winter alerts as heavy snow and strong winds sweep through the ...

The blast of frigid temperatures follows days of snowy, icy conditions across much of the country. It's bringing the coldest ...

After surviving record cold temperatures, the Midwest and Northeast must now brace for an "arctic blast" set to bring low temperatures.

Tens of millions of Americans are under winter storm warnings as a "major" system is dumping snow and delaying flights.

The next arctic blast could drop high and low temperatures into record territory across the Midwest and Great Lakes. The ...

As the arctic blast settles across the U.S., the Midwest is bracing for subzero temperatures, with areas already reaching a ...

Snow was falling over the northern Rocky Mountains Saturday morning and it’s expected to spread into the upper Midwest.

Black ice, snow showers and fog are pestering post-holiday travelers in the Midwest, while the Northeast is gearing up for ...

Such events distort the polar vortex, which causes Arctic air to descend into the U.S. and causes temperatures to plummet.

The Pacific Northwest is expected to see up to seven inches of rain this week, as the eastern United States braces for arctic cold.