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-34 degree Celsius in North Dakota
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Wind chills will drop to minus 50 in some places
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16 deaths reported from US

Nor’easter (extreme winter storm) has blasted north-eastern United States as snow and blizzard has affected 20 states. A state of emergency is in place in New York and New Jersey after a winter storm blanketed parts of the north-east of the US and Canada with up to 61 cm of snow.
The storm is said to produce coldest air in two decades since the wind chill would be below -50, exposed flesh can freeze in as little as five minutes.
(Reference CNN)