Major winter storm to bring temperatures of 0°F or colder to 55M in U.S.

Forecasters are warning of holiday travel disruption as about 270 million people in the Lower 48 states are expected to see temperatures plunge to 32°F or below during the next seven days.

That's according to National Weather Service forecast data analyzed by Weatherbell.com.

About 55 million people in the Lower 48 states are expected to see temperatures hit 0°F or below during the next seven days, per NWS forecasts.