A storm that was pounding California's Sierra Nevada with snow Tuesday took aim at the Colorado Rockies and could roll east and slam the Appalachians on Thanksgiving Day, bringing unsettled travel weather to millions of Americans hitting the skies and roads for the holiday weekend.

Colorado's mountains picked up an impressive amount of snow with this week's storm. For some areas, accumulations of between a foot and 2 feet were measured on Wednesday. If Thanksgiving holiday skiing is in your plans,

Heavy mountain snow will decrease Wednesday afternoon and end in the evening, but not before another two to six inches of snow stacks up, NWS forecasters said.