Snow, high winds and below-average temperatures are sweeping from the Rockies to the Midwest, while an atmospheric river threatens flooding in the Pacific Northwest.

As the arctic blast settles across the U.S., the Midwest is bracing for subzero temperatures, with areas already reaching a whopping -28 to -31 degrees due to wind chill, breaking four records in Iowa.

Winter storms are forecast to bring heavy snows and bitter winds across the regions.

Temperatures plunged as low as 14 degrees below zero on Thursday and will remain dangerously cold on Friday as well.

The beginning of December has meant lots of snow and low temperatures in the Midwest and Northeast United States.

A polar vortex broke, and severe temperatures are set to dominate most of the United States, including the Midwest, in the coming days.