Saffir–Simpson hurricane wind scale
Within the Atlantic Ocean to the north of the Equator, hurricanes are officially monitored by the United States's National Hurricane Center (NHC), however, other meteorological services, such as Météo-France, the United Kingdom's Met Office and Environment Canada also monitor the basin. Within the region, a Category 5 hurricane is considered to be a tropical cyclone that has 1-minute mean maximum sustained wind speeds of or greater on the Saffir–Simpson hurricane wind scale at above ground.