Non-emergency road travel is banned in New York City due to "dangerous blizzard conditions", as snow blankets the Big Apple.
Millions of New Yorkers, as well as much of the northeastern United States, were stuck at home, with forecasters warning of up to two feet of snow in some areas.
"We're expecting conditions to rapidly deteriorate," weather service meteorologist Frank Pereira said Sunday.
Pereira added the storm could possibly become a bomb cyclone, when a storm drops at least 24 millibars in pressure in 24 hours.
"I think when all is said and done, it will meet the definition of a bomb cyclone."
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Nearly 240,000 people were left without power as the storm intensified across several states in the northeast, according to the PowerOutage website.
School classes have either been cancelled or moved online in New York City, Boston and Philadelphia.
New York City Mayor Zohran Mamdani called it the "first old-school snow day since 2019".
"And to kids across New York City, you have a very serious mission if you choose to accept it: Stay cozy," he said.
Meanwhile, outreach workers worked to bring homeless New Yorkers off the street and into shelters and warming centres.
(c) Sky News 2026: New Yorkers told to stay at home as blizzard threatens to become 'bomb cyclone'
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