Within the North Atlantic Ocean, a Category 3 hurricane is a tropical cyclone, that has 1-minute sustained wind speeds of between 96–112 knots (110–129 mph; 178–207 km/h; 49–58 m/s).
The 1893 Sea Islands hurricane left over 1,000 casualties when it struck the U.S. state of Georgia.
The NHC considers these winds to be sustained for a one-minute period at 10 metres (32.8 ft) above the ground.
These winds are estimated using a blend of data from different sources, including observations from nearby ships, reconnaissance aircraft, automatic weather stations, and images from various satellites.
The winds are strong enough to knock down trees, blow out windows, destroy roofs, and cause lengthy power outages.