Snow and ice in Christmas is expected to be much in the United States.

The diversity of the United States will never have to dream of a white Christmas window due to the winter weather in the Great Northwest, Midwest and Northeast. On Sunday, they will see snow from two separate storms.
More than 60 million people live in the area under winter weather alerts, including warnings, suggestions and snow warnings about lake effects.
The storm system passed Des Moines, Iowa and Kansas City on Sunday morning, moving eastward.
The storm began to affect Chicago around 10 o'clock, and Detroit and Cleveland from the afternoon. Heavy snowfalls will begin in Buffalo, New York and Pennsylvania after 8:00 pm and snow falls 2 to 4 inches in the northeast.
Some narrow bands in the state of New York can see large volumes of snow from two or more due to lake effects. Forecasts of the National Meteorological Service for a total site of 50 inches in a specific location.

In addition, the new storm system will move to the Pacific Northwest with 2 inches of snow expected in Seattle and a mixture of ice and snow in Portland, Oregon.
The system will be transferred to Colorado on Sunday night until Christmas, which may affect travel conditions.
Severe winter weather is likely in the southeastern part of Wyoming, where blizzard warnings will be effective on Monday morning. The Interstate 80 can see up to 6 inches of snow and 50 miles of wind per hour, resulting in white conditions.
Winter weather can cause delays and other problems in the streets and in the sky during the busiest times of the year.
According to FlightAware, more than 3,100 flights departing or departing in the United States will be delayed from 5:30 pm ET.