By NBC News
February 13, 2015

Millions of Americans across the Northeast were warned by forecasters to prepare this weekend for some of the coldest temperatures in two decades.

The dangerously bitter conditions are expected to come on the back of yet another winter storm bringing more snow, ice, and high winds across the Northeast beginning Saturday.

The cold will start to creep in early Friday, according to The Weather Channel, and the mercury is expected to plummet until it hits the low single digits in New York City early on Monday. With the windchill forecast between -15 F and -30 F, it is set to be “one of the coldest air masses we have seen in the Northeast in 20 years,” according to Weather Channel senior meteorologist Michael Palmer.

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