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.

Parts of New York, Vermont, New Hampshire and Maine are under winter storm warnings, and precipitation is expected to begin as early as 1 a.m. on Thanksgiving Day. Higher elevations, including area ski resorts, will see snowfall that could continue through 1 a.m. on Black Friday.

A high-impact winter storm packing heavy snow and rain has moved into the Northeast, leading to last-minute travel troubles as millions of people across the U.S. gather with family and friends on Thanksgiving to celebrate the holiday.

Winter storm warnings have been issued for parts of the U.S. this Thanksgiving week—here's where snow could fall.

Millions of Americans flying or getting behind the wheel for the Thanksgiving holiday are bracing for flight delays and dangerous roads as bad weather sweeps the US in what’s forecast to be a record-breaking travel period.

Affected areas will see varying precipitation and cold temperatures. Storms which hit California and Nevada in the Sierra Nevada Range on Tuesday moved into Colorado and Utah on Wednesday,

A round of storms across the U.S. will potentially disrupt travel in the days leading up to Thanksgiving, with systems brewing over the West Coast before pushing to the East. The storms, which will begin Wednesday,

A high-impact winter storm packing heavy snow and rain has moved into the Northeast, leading to last-minute travel troubles as millions of people across the U.S. gather with family and friends on Thanksgiving to celebrate the holiday.