Two bolts of lightning hit midtown Manhattan during a storm in New York on July 2, 2014. (Photo by Gary Hershorn/Corbis Images)

Lightning strikes One World Trade Center in Manhattan as the sun sets behind the city after a summer storm in New York on July 2, 2014. (Photo by Lucas Jackson/Reuters)

Lighting strikes over the Empire State Building in New York on July 2, 2014. (Photo by Timothy A. Clary/AFP Photo)

A rainbow forms over Lower Manhattan during an early evening storm in New York, July 2, 2014. (Photo by Gary Hershorn/Corbis Images)

Lightning hits One World Trade Center in Lower Manhattan during an early evening storm in New York, July 2, 2014. (Photo by Gary Hershorn/Corbis Images)

Lightning streaks in the sky over midtown Manhattan in New York on July 2, 2014. (Photo by Gary Hershorn/Corbis Images)

Lightning strikes above the Manhattan skyline during sunset after a summer storm in New York on July 2, 2014. (Photo by Lucas Jackson/Reuters)

With the United Nations and Tudor City in the foreground, lightning strikes in the sky over the East River as a major storm approaches New York City July 2, 2014. Tropical Storm Arthur, the first of the Atlantic hurricane season, gathered strength July 20, 2014 and would likely reach hurricane strength over the next couple of days. (Photo by Timothy A. Clary/AFP Photo)

In this handout provided by NASA from the the Earth-orbiting International Space Station, weather system Arthur travels up the east coast of the United States in the Atlantic Ocean near Florida on July 2, 2014 in space. The robotic arm of the Space Station Remote Manipulator System or Canadarm2 is seen at upper right. According to reports, Arthur has begun moving steadily northward at around 5 kt. and the tropical storm is expected to strike the North Carolina Outer Banks over the Fourth of July holiday. (Photo by NOAA via Getty Images)