Arctic blast to bring temperatures of 0°F or colder to 55M in U.S., snarl holiday travel

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, and a major winter storm strikes the Midwest.

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.

Threat level: "The tandem of bitterly cold temperatures and an intensifying storm system over the Rockies and...