Hurricane Sandy was a tropical cyclone that devastated portions of the Caribbean, Mid-Atlantic and Northeastern United States in late October 2012. The eighteenth named storm and tenth hurricane of the 2012 Atlantic hurricane season, Sandy was the largest Atlantic hurricane on record, as measured by diameter, with winds spanning 1,100 miles. Sandy is estimated in early calculations to have caused damage of at least $20 billion. Preliminary estimates of losses that include business interruption surpass $50 billion, which, if confirmed, would make it the second-costliest Atlantic hurricane in history, behind only Hurricane Katrina.
Sandy developed from a tropical wave in the western Caribbean Sea on October 22, quickly strengthened and was upgraded to Tropical Storm Sandy six hours later. Sandy moved slowly northward toward the Greater Antilles and gradually intensified. On October 24, Sandy became a hurricane, made landfall near Kingston, Jamaica, a few hours later, re-emerged into the Caribbean Sea and strengthened into a Category 2 hurricane. On October 25, Sandy hit Cuba, then weakened to a to Category 1 hurricane. Early on October 26, Sandy moved through the Bahamas, and later began exhibiting both tropical and extra tropical characteristics. On October 27, Sandy briefly weakened to a tropical storm and then strengthened to a Category 1 hurricane. Early on October 29, Sandy curved north-northwest and became an extra tropical cyclone, then moved ashore near Atlantic City, New Jersey.
In Jamaica, winds left 70% of residents without electricity, blew roofs off buildings, killed one, and caused about $55.23 million in damage. In Haiti, Sandy's outer bands brought flooding that killed at least 52, caused food shortages, and left about 200,000 homeless. In the Dominican Republic, two died. In Puerto Rico, one man was swept away by a swollen river. In Cuba, there was extensive coastal flooding and wind damage inland, destroying some 15,000 homes,