More than 200 million people are under winter storm threats as officials brace for power outages and travel difficulties.

As millions of Americans hunker down for the winter storm, 17 states and Washington, D.C., have declared states of emergency.

How much snow will Boston get from a monster winter storm this weekend? Here's the latest weather forecast.

The National Weather Service calls the system "a significant long-duration winter storm," which is expected to bring heavy ...