A large U.S. flag, left, waves in gusty winds as pedestrians cross the street under streetlights in Newark, N.J. on Sept. 18. A tornado watch has been issued for parts of New Jersey, New York City and New York's lower Hudson Valley until 7 p.m. The National Weather Service Storm Prediction Center says lightning, hail and wind gusts up to 70 mph are possible. Read more.
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