Hurricanes are giant, spiraling tropical storms that can pack wind speeds of over 160 miles (257 kilometers) an hour and unleash more than 2.4 trillion gallons (9 trillion liters) of rain a day. These same tropical storms are known as cyclones in the northern Indian Ocean and Bay of Bengal, and as typhoons in the western Pacific Ocean.
50 Amazing Hurricane Facts | Hurricane & Typhoon Records | OurAmazingPlanet.com Rare phenomenon Only three Category 5 hurricanes (the highest category on the hurricane strength scale) have hit the United States since the beginning of the 20th century: the 1935 Florida Keys Labor Day Hurricane, Hurricane Camille in 1969, and Hurricane Andrew in 1992
50 Amazing Hurricane Facts | Hurricane & Typhoon Records | OurAmazingPlanet.com Hurricane Katrina is the costliest hurricane to have ever hit the United States, causing some $125 billion dollars worth of damage in New Orleans and across much of the Gulf Coast. It was a Category 5 storm at one point, but just Category 3 when it made landfall along the Louisiana-Mississippi border.