Flash freeze of melting snowstorm seen icing over U.S. Northeast

Plunging temperatures after a wet winter storm dumped more than a foot of snow on parts of the U.S. Northeast were expected to flash freeze much of the region on Sunday and make travel dicey during the Martin Luther King Jr. holiday on Monday. "Any water that remains on the road will freeze into a sheet of ice and make conditions quite hazardous," said Rich Otto, a meteorologist with the National Weather Service (NWS). Sub-zero temperatures tied to gusting winds prompted the NWS to issue wind chill advisories and warnings for more than 10 states, from North Dakota and other parts of the central United States to East Coast metropolitan centers including Washington, New York and Boston.

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