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.

The Transportation Security Administration expects to screen 18.3 million travelers over the next week, potentially making this the busiest Thanksgiving travel period ever.

Four Colorado towns have been voted as the best "Turkey Trails," or family road trip destinations for the Thanksgiving holiday. The married political consultants sold the coveted address near Audubon Park in 2021. “We’ve banned this customer from future United flights,” the airline confirmed in a statement shared with PEOPLE