Lake-effect snow blankets the Great Lakes as Thanksgiving travelers head home

ORCHARD PARK, N.Y. — Lake-effect snow blanketed swaths of the U.S. as Thanksgiving travelers journeyed home this holiday weekend, with more snow expected to fall over the Great Lakes region through the week.

While the weather event dumped dozens of inches of snow in upstate New York, including nearly 4 feet (1.22 meters) off Lake Ontario, as well as parts of Pennsylvania and Michigan, flinty fans scoffed at the flurries and numbing temperatures during Sunday's nighttime NFL game in Buffalo.

Lake-effect snow is caused when warm, moist air is blown across a body of water and mixes with colder, drier air, creating narrow bands of often heavy snow on land. The National Weather Service said additional snow was forecast to fall overnight Sunday into Monday — with more heavy lake-effect snow is expected to hit the Great Lakes area Wednesday and Thursday, along with gusty winds and freezing temperatures.

Buffalo Bills game played in wintry conditions

In Buffalo, officials with the NFL's Bills had sought stadium snow shovelers for the season, including ahead of Sunday night's game against the San Francisco 49ers. The team said it would pay $20 per hour and provide food and hot drinks.

The lake-effect storm began hitting the area Saturday near the Bills' stadium in Orchard Park, New York. Though the storm shifted south of the stadium by noon Sunday, snow continued to fall off and on through the day. Flurries began to fall more heavily just before kickoff. The game was played in chilly conditions with the game-time temperature at 27 degrees Fahrenheit (minus-3 Celsius), with the wind chill making it feel like 17 F (minus-8 C). The Bills often play in such conditions at home late in the season.

Tim LoTemple — a Bills season-ticket holder from Rochester, New York, and part of the team's rabid fan base known as ''Bills Mafia" — said the freezing temperatures and snow energize the players and fans. Still, the 49ers game was practically temperate compared to previous matchups at Highmark Stadium.

But for Jake Dyer, an Indianapolis Colts fan visiting from Southern California, a cold-weather game is a rarity.

''Only thing I didn't prepare for was shoes. I double up on everything else, but my feet are cold,'' he said. ''Mad respect for anybody who comes out. Anybody can sit at home, comfy in their chair to watch this game.''

Another one to two feet (about 30 to 60 centimeters) of snow were possible in western New York, and another two to three feet were possible in northern New York, Gov. Kathy Hochul's office said Sunday.

New York, Pennsylvania declare emergencies

A blast of Arctic air last week brought bitter temperatures of 10 to 20 degrees Fahrenheit below average to the Northern Plains, the National Weather Service said. Frigid air was expected to move over the eastern third of the U.S. by Monday, with temperatures about 10 degrees below average.

Michigan is battered, too

Parts of Michigan were battered by lake-effect snow as bands rolling off Lake Superior buried parts of the Upper Peninsula under 2 feet (61 centimeters) or more, said Lily Chapman, a meteorologist with the National Weather Service.

There were 27 inches (69 centimeters) of snow northeast of Ironwood, in the Upper Peninsula's western reaches. Over a foot (30.5 centimeters) could fall over the eastern Upper Peninsula through Monday morning, Chapman said Saturday.

A light dusting of snow fell across eastern Kentucky and West Virginia, making a beautiful backdrop for Christmas decorations and good practice for road crews.

Over the next few days, lows in the Appalachians are expected to dip between 10 to 20 degrees Fahrenheit (-12 to -7 degrees Celsius).