Hurricanes are tropical storms. There are usually 4-6 hurricanes a year. They can be seen from space. It can be 6 miles high and 400 miles wide. wind speed 74-95 miles per hour small damage. 96-110 miles per hour moderate damage. 111-130 miles per hour roof and tree damage. 131-155 miles per hour likely to cause death and extreme damage. 156+death and dreadful damage.