Over 13,000 flights have been canceled across the United States over the weekend, according to the website Flightaware. SAS has canceled flights to the United States from Copenhagen, while departures on various airlines have been delayed.
About 140,000 customers were without power in the United States on Saturday, according to the website poweroutage.us. Louisiana was worst affected, followed by neighboring Texas in the southern part of the country.
Federal emergency services have deployed personnel to several states. Clearance work on downed power lines is underway in some southern states.
In New Jersey, Governor Mikie Sherrill has issued restrictions on commercial vehicle travel and a speed limit of 56 km per hour on highways.
"We are expecting a storm the likes of which we have not seen in years," the governor said on Saturday.
A state of emergency is in effect in about 20 states. Nearly 180 million people, more than half of the US population, could be affected by the blizzard.
Americans have emptied grocery store shelves after the weather forecast showed massive snowfall in some areas.
