Major damage to lower floors of structures near the shore due to flooding and battering by waves and floating debris. Major erosion of beaches occurs. Considerable damage to roofs of buildings. Very severe and extensive window and door damage occurs. Complete failure of roof structures occurs on many residences and industrial buildings, and extensive shattering of glass in windows and doors occurs.
Some complete buildings fail.
Small buildings are overturned or blown away. Complete destruction of mobile homes occurs. Major erosion of beaches occurs. The Fujita Tornado Scale is a six-category wind speed classification scale used to classify tornado intensities. The values range from F0 to F5 and cover wind speeds up to 318 mph.