'Siberian Express' Shatters Temperature Records

Updated: February 20, 2015 4:07 PM [ET] | Originally published: February 19, 2015 8:53 PM EST;

Relentless, teeth-chattering, record-shattering cold gripped the eastern United States on Friday as the next winter storm threatened to make an icy, snowy mess out of the weekend for tens of millions of people.

Flint, Michigan, dipped to 25 degrees below zero, tying the record for the coldest morning there since records were established in 1921. Philadelphia, Washington and Lexington, Kentucky, had their coldest morning in two decades.

Elsewhere, from Maine to Florida, temperatures were as much as 40 degrees lower than normal. Forecasters said it might turn out to be the coldest air of the entire winter…

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Here's What Niagara Falls Looks Like Frozen

A partially frozen American Falls in sub freezing temperatures is seen in Niagara Falls, Ontario, Canada, Feb. 17, 2015. Lindsay DeDario—Reuters

A snow-covered landscape is seen around the frozen Niagara Falls in Niagara Falls, Feb.17, 2015. — A snow-covered landscape is seen around the frozen Niagara Falls in Niagara Falls, N.Y. Feb.17, 2015. Lindsay DeDario—Reuters

A family walks through the snow near the frozen Niagara Falls in Niagara Falls, Feb. 17, 2015. — A family walks through the snow near the frozen Niagara Falls in Niagara Falls, N.Y.,Feb. 17, 2015. Lindsay DeDario—Reuters

A rainbow appears over the partially frozen American Falls in sub freezing temperatures in Niagara Falls Ontario — A rainbow appears over the partially frozen American Falls in sub freezing temperatures in Niagara Falls, Ontario, Canada, Feb. 17, 2015. Lindsay DeDario—Reuters

Visitors view frozen Niagara Falls in Niagara Falls, New York, Feb. 17, 2015. — Visitors view frozen Niagara Falls in Niagara Falls, N.Y., Feb. 17, 2015.Lindsay DeDario—Reuters

The Big Freeze Shatters Records on the East Coast

Here's What Niagara Falls Looks Like Frozen

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