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By NBC News
December 23, 2014

Good luck getting home for Christmas.

Delays began piling up at East Coast airports on Tuesday because of a storm system packing strong winds, thunderstorms, snow and perhaps even a tornado or two. Another system is threatening rain and heavy snow in the Northwest and Rockies.

Dozens of flights were scrapped at Philadelphia International and at LaGuardia in New York, and delays ran as long as two hours.

Farther south, the National Weather Service posted a tornado watch for parts of Alabama, Louisiana, Mississippi and Texas and warned of the possibility of 2-inch-wide hail. Roy Lucksinger, a meteorologist for The Weather Channel, said 3 to 5 inches of rain was possible across the South…

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