Winter Storm Harper a Major Snowstorm Friday Into the Weekend

Get the latest on storm system's track and timing.

Harper's Travel Troubles: Where to Expect the Worst

A look at the travel forecast for this holiday weekend.

How Much of the Snow Season Is Left?

In many U.S. cities, more than 50 percent of their season's snow falls after Jan. 15.

Antarctic Sea Ice is AWOL

It's the lowest extent for early January since satellites began monitoring.
Up-To-The-Minute Coverage

A Sharper Look at Global Weather

IBM will soon be releasing the world's highest-resolution global forecast model.
Up-To-The-Minute Coverage