States that can expect "moderate" impacts on Wednesday include Wyoming, Utah, Colorado, Arizona, New Mexico, Iowa, Indiana, Kentucky, Illinois, and Maine. The majority of the remainder of the U.S.

Though some areas are all but guaranteed a white Christmas, nationally, it's looking rather bleak for many snow lovers.

The northern lights are expected to grace the skies of some northern states tonight and tomorrow, according to NOAA.

As tens of thousands of Americans hit the roads and airways this Thanksgiving week to reunite with family, challenging weather conditions threaten to complicate their journeys across multiple regions.