<human>:  Explain the difference between a hurricane, tornado and a typhoon.
<bot>: A hurricane is a large tropical storm system with sustained winds of 74 miles per hour or greater that develops over an ocean and can cause widespread destruction when it makes landfall. Tornadoes are intense, rotating columns of air that extend from a thunderstorm to the ground. The rapidly rotating column of air can cause destructive winds, tornadoes are generally much smaller in scale than hurricanes, although some tornadoes can cover extensive areas of more than a mile in width. Typhoons are powerful storms originating in the Pacific Ocean, near the equator, that include extremely strong winds, heavy rains and dangerous storm surge. Typhoons can develop quickly and can be more destructive than hurricanes, however they tend to be smaller and more localized in their effects.