BUFFALO, N.Y. (AP) — Brutally cold temperatures and dangerous wind chills stayed put across much of the U.S. Monday, promising the coldest temperatures ever for Iowa's presidential nominating contest, holding up travelers, and testing the mettle of NFL fans in Buffalo for a playoff game that was delayed a day by wind-whipped snow. Saco, Montana, dropped to minus 51 F (minus 26 C). Subzero lows reached as far south as Kansas, Missouri, Illinois and parts of Indiana, Taylor said. The person killed — the fifth death nationwide attributed to the Arctic cold — was among four snowmobilers attempting to cross U.S. Highway 40 in the Strawberry Reservoir area. Ice jam warnings were issued in Wyoming and Montana, where the bitter cold could cause rivers and streams to lock up with ice and overflow their banks.

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Persons: —, Zack Taylor, Taylor, Crews, shovelers, Bob Isaacs, Buffalo, “, Monday, Julie Walker, John Wawrow, Matthew Brown, Jack Dura Organizations: U.S, NFL, National Weather Service, Buffalo Bills, South Buffalo, Presidential, Republican, Utah, Patrol, Authorities, Washington, D.C, Associated Press Locations: BUFFALO, N.Y, Buffalo, College Park , Maryland, Montana . Saco , Montana, Kansas , Missouri , Illinois, Indiana, Highmark, Orchard Park , New York, Lake Erie, Hamburg, Angola, West Seneca, Blasdell, South, Iowa, United States, Utah, Salt Lake City, Colorado, East, Vail , Colorado, Jackson County, Wyoming, Montana, New York City, Billings , Montana, Bismarck , North Dakota