Subfreezing temperatures across much of the U.S. left millions of Americans facing dangerous cold over the weekend as Arctic storms knocked out electricity to tens of thousands in the Northwest, brought snow to the South and walloped the Northeast with blizzard conditions that forced the postponement of an NFL game.

An estimated 95 million people nationwide were under weather warnings or advisories Sunday for wind chills below zero Fahrenheit. Forecasters said the severe cold was expected to push as far south as northern Texas while the bitter blast could push wind chills as low as minus 70 degrees in Montana and the Dakotas.

“It takes a matter of minutes for frostbite to set in,” the South Dakota Department of Public Safety said in a statement Sunday urging people to stay indoors.

In Buffalo, New York, where snowfall of 1 to 2 feet was forecast, severe conditions led officials to postpone the Buffalo Bills-Pittsburgh Steelers NFL playoff game from Sunday to today.

Workers with shovels and trucks worked to clear snow from the field at Buffalo’s Highmark Stadium as the Bills warned volunteers eager to help with the stadium shoveling to stay at home and not defy a travel ban on area roads.

“Looks like a pretty good day to not have a football game,” New York Gov. Kathy Hochul, a Buffalo native, posted on X with a video clip of whiteout conditions in the western New York city.

At least one Bills player was out in the bad weather Sunday putting his newfound free time to good use. Offensive tackle Ryan Van Demark shared a video on Instagram showing fellow lineman Alec Anderson helping a motorist struggling with icy road conditions.

“Good Samaritan, Alec, helping the people,” Van Demark narrates on the brief clip.

Zack Taylor, a National Weather Service meteorologist in College Park, Maryland, warned some parts of the Northeast would see intense snowfall and extreme winds, with gusts up to 50 mph possible.

“That’s why they’re expecting to see near-blizzard conditions at times,” Taylor said.

In Oregon, more than 137,000 homes and businesses were without electricity, most of them in the Portland metro area, a day after high winds and a mix of snow and ice brought down trees and power lines.

“Given the extent of the damage and the high level of outage events, restoration efforts will continue into the week and customers are encouraged to plan accordingly,” Portland General Electric said in a statement. The utility said it was watching a second weather pattern that could bring high winds and freezing rain on Tuesday.