The National Weather Service warned that some areas could see their biggest storm in more than a decade in parts of the U.S.

Millions of Americans are bracing for severe winter weather today as Winter Storm Blair moves across the country, bringing heavy snow, high winds, and dangerous travel conditions to 15 states. It comes after the NWS said Storm Blair will produce "Arctic outbreaks" in many areas of the country.

Here's the latest on how this winter storm's snow and ice are affecting tens of millions in the central and eastern U.S.