While it was a Category 2 storm off the coast of the Northeastern United States , the storm became the largest Atlantic hurricane on record ( as measured by diameter , with winds spanning 1,100 miles ( 1,800 km ) ) .
Hurricane Sandy was an Atlantic tropical cyclone which affected parts of the Caribbean , Mid-Atlantic and Northeastern United States in late October 2012 , and became the largest Atlantic hurricane in diameter , with winds spanning 1,100 miles ( 1,800 km ) .