nor'easters, hurricanes and tropical storms typically threaten only a small stretch of coastline about 100‑150 kilometers in width. A tropical storm is defined as a tropical depression with cyclonic wind circulation (counter‑clockwise in the Northern Hemisphere) of 39 to 73 miles per hour. A hurricane is defined as a tropical storm with cyclonic wind circulation of 74 miles per hour or higher. Any rotating storm is technically a cyclone, though such storms are called hurricanes in the Atlantic, typhoons in the Pacific, and cyclones in the Indian Ocean. Hurricane Barbara in August 1953 severely damaged the lantern of the 1791 Cape Henry Lighthouse in Virginia. The repairs took five years to complete.