As many as 50 million people were in the path of the glacial weather, which will see temperatures far more frigid than normal, the National Weather Service warned, adding that the misery was forecast to last through much of the week for the eastern US.
"Incredibly, another arctic front will arrive to the East Coast by tonight, and this will bring some truly frigid conditions with it," it said.

"Some places from the Carolinas to the Mid-Atlantic may see some of the coldest weather since the mid-1990s! Numerous record low temperatures are expected." Southern states not used to such cold weather were also hit.
The storm followed a track from eastern Kansas through Tennessee and West Virginia to the mid-Atlantic Coast, media said.
Most of the affected areas can expect a snowstorm about once a year. But states like Kentucky were seeing snowfall well above average, said Jim Hayes, a meteorologist at the weather service's Weather Prediction Center in Maryland.

"This is going to be a big event for them," he said. "They don't get that much snowfall very often," he said, according to the media.
The Massachusetts Bay Transportation Authority said that after a series of mammoth storms in recent weeks it could take up to a month to restore the ageing system to full operation, if no more storms blow in. Boston braced for one to six inches more of snow, forecasters said, according to the Boston Globe.
Snowfall amounts of six to 15 centimeters to 30 centimeters were anticipated in much of the mid-Atlantic, which includes Washington DC as well as New York City some 350 kilometers to the north.
US forecasters said the storm will buffet a wide swath of the eastern United States with snow, gale-force winds and brutal cold.

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