Ten million people along the East Coast of the US are preparing for a powerful storm with the first blizzard warnings in the region in four years and thousands of flights cancelled.
The Nor'easter is forecast to impact New England and the Middle Atlantic region this weekend, bringing potential coastal flooding, power outages and travel disruption.
Airlines have already cancelled more than 5,000 flights scheduled to depart between Friday and Saturday, according to flight-tracking service FlightAware. More than 8,500 flights have been delayed.
More than 90% of Saturday schedules at Boston's Logan Airport and New York's LaGuardia were scrapped, according to FlightAware.
Shoppers rushed to stores on Friday to stock up on food and buy generators and snowblowers ahead of the nor'easter - so named because its winds typically blow from the northeast as it churns up the East Coast.
Warnings to stay home and off the roads
Officials from Virginia to Massachusetts have rushed to declare an emergency, imposing parking bans and restricting travel in advance of the snow, which is anticipated to fall as fast as five inches per hour.
Boston - which could get two feet - declared a snow emergency, with the Massachusetts governor urging people to stay home.
Massachusetts has also banned heavy trucks from interstate highways for most of Saturday.
Officials from Virginia and Maine have warned people to stay off the roads amid potential whiteout conditions.
Rhode Island, all of which is under a blizzard warning, has banned all non-emergency road travel, starting at 8am.
Deleware allowed only essential personnel to drive in two of its three counties, starting Friday night.
Parts of 10 states have been placed under blizzard warnings.
The National Weather Service said the storm was developing as a low pressure system off the Southeast coast and would likely gain in intensity as it moves up the East Coast.
It issued a blizzard warning for the Boston metropolitan area and its nearly 4.9 million residents on Friday.
"Expect whiteout conditions and nearly impossible travel at times. The strong to damaging winds will lead to scattered power outages. Also, significant coastal impacts are possible, including coastal flooding and beach erosion," the weather service said.
Fast-falling snow and high winds
Forecasters said up to 2ft of snow could fall across the region, as fast as 5 inches per hour, along with gusts of 70mph early on Saturday.
Winter storm advisories and warnings have been put into effect from the Carolinas through Maine, where snow was forecast to start falling on Friday afternoon and expected to continue on Saturday.
Photos on social media showed shoppers crowding into grocery stores and stocking up on essentials ahead of the storm.
New Englanders respond calmly
A number of New Englanders have taken the impending forecast in their stride.
Marc Rudkowski, 28, bought French bread and wine Friday at the Star Market in Cambridge, Massachusetts, along with balloons and toys for his dog, who turned one on Friday.
"He's going to love it," he said. "He's a snow dog."
Meanwhile, Merrick McCormack, 51, was calm as he unloaded his groceries at a supermarket in Warwick, Rhode Island.
He said: "I don't fuss with storms. I know in a couple of days, we're going to be free and clear. No need to panic."
However, there have been some concerns about the ongoing supply chain issues in the region, which have been exacerbated by the pandemic.