"At least 170 million Americans are under winter weather alerts. "Bitterly cold temperatures and dangerously cold wind chills" will linger even after the storm is done dumping heavy snow, sleet, and freezing rain across the Southern Rockies all the way to New England through Monday, the National Weather Service (NWS) warned Friday. Forecasters expect low temperatures to break numerous records, with wind chills as frigid as -50 degrees Fahrenheit in the Northern Plains."
"It's been a bit difficult for forecasters to get a good sense early on of where this storm will be headed and who will be hardest hit. It's driven by complex factors scientists are still working to better understand, starting with bitter-cold Arctic air set on a collision course with a weather system moving inland from the Pacific ocean that's loaded with moisture."
Most of the United States will experience a prolonged period of extreme cold accompanied by a massive winter storm that could damage roads and power grids. At least 170 million people are under winter weather alerts. Bitterly cold temperatures and dangerously cold wind chills will persist after heavy snow, sleet, and freezing rain move from the Southern Rockies to New England through Monday. Forecasters expect record low temperatures and wind chills down to -50°F in the Northern Plains. The storm is driven by bitter Arctic air colliding with a moisture-rich Pacific system, creating forecasting challenges and varied local impacts.
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