A dangerous cold snap gripped the northeastern United States on Saturday, with temperatures in some areas set to fall below zero and Boston facing its coldest Valentine's Day in almost four decades.
Officials warned people to stay indoors away from what the National Weather Service described as "life threatening" cold. Wind chill advisories were in effect over parts of nine states extending from northern Pennsylvania to western Maine, with forecasters expecting gusts up to 45 miles per hour (72 kph).
"Wind chills will be getting colder and colder as the day goes on," said Alan Dunham, a meteorologist with the National Weather Service in Taunton, Massachusetts.
The temperature in Boston was expected to drop to -7 degrees Fahrenheit overnight (-21.7°C), but feel as cold as -30 degrees Fahrenheit (-34.4°C) with the wind chill.
That would be below the record low of -3 degrees Fahrenheit (-19.4°C) set in 1979.
In Pennsylvania, more than 50 cars were involved in a collision on an interstate highway outside Harrisburg after a snow squall blew through the capital.
"There are multiple injuries," said Pennsylvania State Police Trooper David LeBron, saying that no detail was yet available on the number of people hurt or if anyone was killed.
New York City was bracing for its coldest night in 20 years. Mayor Bill de Blasio said officials had put on extra staff to help respond to residents who had lost heat.
"It's so important to take this seriously, to stay indoors to the maximum extent possible, go out for as little time as possible," de Blasio told reporters.
At Boston's Pine Street Inn 485-bed homeless shelter, workers were finding cots, mats and even chairs to accommodate the roughly 600 people they were expecting tonight, said spokeswoman Barbara Trevisan.
"No one will be turned out for lack of space," Trevisan said.
In Boston, some were hurrying through their mornings to get outdoor chores done before the worst cold set in.
"Right now I'm going to drink a coffee" to stay warm, said Carmen Pichente, 40, en route to her job at a Boston restaurant. "Tomorrow, I'm going to stay at home all day."
Others brushed it off as part of life in New England.
"It's nothing. I lived in Boston all my life," said Eddie Brown, 51, a delivery truck driver out on his rounds. Asked why he wasn't wearing a coat, Brown replied, "I got long underwear on."
