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Extreme weather in the USA: A snowstorm passes over a farm in Galva on Highway 20. Large-scale power outages were reported in Michigan, New York, Pennsylvania and Wisconsin, affecting tens of thousands. In Oregon alone, more than 150,000 homes and businesses were reportedly without power on Sunday after heavy snow and ice storms.

Photo: Carolyn Kaster / dpa

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Arctic winds lead to a massive cold wave: This worker clears snow from a sidewalk in Des Moines, Iowa.

Photo: Brendan Mcdermid / REUTERS

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Cold and snow have also left their mark on this man: He helps clear snow at the Buffalo Bills football stadium.

Photo: Jeffrey T. Barnes/AP

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In the state of New York, where snowfall of up to 60 centimeters is predicted, the National Football League has to postpone a playoff game. The game between the Buffalo Bills and the Pittsburgh Steelers has been moved from Sunday to Monday.

Photo: Jeffrey T. Barnes/AP

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Snow at Highmark Stadium in Orchard Park, New York: "Looks like a pretty good day not to have a football game," wrote Buffalo Governor Kathy Hochul.

Photo: Jeffrey T. Barnes/AP

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For some, however, it's apparently not cold enough yet – as this fan at the NFL game between the Kansas City Chiefs and the Miami Dolphins suggests.

Photo: Ed Zurga / AP

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Snow-covered cars at Chicago's O'Hare International Airport: At many airports in the USA, the cold spell has brought flight operations to a standstill.

Photo: Nam Y. Huh / AP

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Indianola: Geese rest on a frozen stretch of the Des Moines River at the Center Street Bridge.

Photo: Douglas R. Clifford / dpa

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Portland, Oregon: According to meteorologists at the U.S. National Weather Service, about 95 million people are in areas affected by sub-zero temperatures. "It only takes a few minutes for frostbite to occur," reads a warning from the authorities in South Dakota.

Photo: Jenny Kane / AP

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These kids use the snow to toboggan – with a view of the Chicago skyline.

Photo: Pat Nabong / AP

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Mammoth Lakes in California: It also snows heavily in this ski resort.

Photo: Peter Morning / AP

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Snow-covered road sign in Prospect Heights, Illinois: The U.S. weather service warns of temperatures as low as minus 50 degrees Celsius in some regions due to the icy wind. Oregon, California, Idaho, Illinois and Wisconsin have already reported weather-related deaths.

Photo: Nam Y. Huh / AP

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Snow drifts at a building in Soda Springs: Meteorologists warn that heavy snowfall and wind could lead to drastic and sudden deterioration in visibility — snowpacks could form in a matter of minutes.

Photo: Stephen Lam / dpa

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