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Hurricanes are known for their damaging wind. They are rated in strength by their wind also. However, when the NWS's National Hurricane Center issues a statement concerning the wind and category, that value is for sustained wind only. This hurricane scale does not include gusts or squalls.
Gusts are short but rapid bursts in wind speed and are primarily caused by turbulence over land mixing faster air aloft to the surface. Squalls, on the other hand, are longer periods of increased wind speeds and are generally associated with the bands of thunderstorms which make-up the spiral bands around the hurricane.
Learn more about hurricanes in JetStream - An Online School for Weather.