Maximum sustained wind 50% of the geostrophic wind speed aloft; while over open water or ice, the reduction is between 10% and 30%. In most basins, maximum sustained winds are used to define their category. In the Atlantic and northeast Pacific oceans, the Saffir–Simpson scale is used. This scale can be used to determine possible storm surge and damage impact on land. In most basins, the category of the tropical cyclone (for example, tropical depression, tropical storm, hurricane/typhoon, super typhoon, depression, deep depression, intense tropical cyclone) is determined from the cyclone's maximum sustained wind. Only in Australia is this quantity not used to
1925 Florida tropical storm by the storm as vessels were forced to seek shelter at port. Due to the large size of the storm as an extratropical cyclone, gale and storm warnings in force from Beaufort, North Carolina to Eastport, Maine. In North Carolina, heavy rains and strong winds were reported along the coast. Near record high water rises were recorded around Wilmington. Cape Hatteras was temporarily isolated from the surrounding areas as the high winds from the storm knocked down power lines throughout the area. Several buildings along the coast and numerous boats sustained considerable damage. As far north as New Jersey, gale-force