Large parts of the US eastern seaboard have been covered in snow by a winter storm that has already brought chaos to southern states.
Maryland, Virginia and North Carolina have declared states of emergency after winds of up to 45mph combined with the snow to caused blizzards.
Maryland, Virginia and North Carolina have declared states of emergency after winds of up to 45mph combined with the snow to caused blizzards.
South Carolina had its first Christmas snow since records began in 1887.
Virginia Governor Bob McDonnell told The Weather Channel that snow driven by strong winds would make travel conditions hazardous.
"We're urging extreme caution in travel. Try to get home early and if you don't have to travel don't go," he said.
New York City and the New England states have now been hit.
Airlines have grounded hundreds of flights along the northeast corridor and more cancellations are likely as the storm progresses.
A blizzard warning is also in effect for Rhode Island and most of eastern Massachusetts including Boston, with forecasters predicting 38 to 51cm of snow.
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