Snow falls on parked cars in Concord, New Hampshire, on January 16.
Mandatory Credit:	Will Lanzoni/CNN

Snow falls on parked cars in Concord, New Hampshire, on January 16.
Mandatory Credit: Will Lanzoni/CNN

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At least 21 dead from barrage of winter storms and cold – and there’s more on the way

An unrelenting series of winter storms and an outbreak of cold air have killed several people across a half-dozen states since Friday. Now, another round of extreme cold and snow will march across the central and eastern US, setting up more hazardous travel and a brutally-cold weekend. Here’s the latest: