Winter is tightening its icy grip across much of the country, with a string of states slapped with weather warnings this week amid fears of treacherous conditions. Reduced visibility and heavy snow—up to 6 feet of snow accumulation in some parts—are forecast just days away from Thanksgiving.

Snow is headed to the Midwest and the West ahead of Thanksgiving, while rain will target the East Coast on Thanksgiving Day.

Forecasters in the U.S. have warned of another round of winter weather that could complicate travel leading up to Thanksgiving.

Looking ahead to Thanksgiving, there may be issues for travelers across parts of the country due to cold temperatures and possible rain and snow across the country.