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.

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 series of storms is set to move across the US this week, and some of them could help bring much needed relief to areas experiencing drought.

A winter storm will drop heavy snow on parts of the Midwest and Northeast on Thanksgiving, snarling holiday travel.

Winter storms could disrupt Thanksgiving weekend plans for some of the record 80 million Americans who traveled more than 50 miles from home this year. Heavy snowfall is expected in New England through Friday morning and areas along the Great Lakes through Saturday,

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.

Travelers already at their holiday destinations have much to be thankful for as a Thanksgiving Day storm dumps snow and rain on the East Coast, creating travel woes for thousands still on their journeys.

The National Weather Service has issued weather warnings across eight states with snow alerts due to lake effects.

Rain is falling across the northeast on Thursday morning, setting up what's bound to be a soggy Thanksgiving for dozens of states.