The 2017 Atlantic hurricane season is an event in the annual cycle of tropical cyclone formation. The season began on June 1, 2017, and it ended on November 30, 2017, dates of which conventionally delimit the period of each year when most tropical cyclones form in the Atlantic basin. However, the season exceeded these bounds when the last storm, Subtropical Storm Alpha, dissipated on December 3 only a few days after the official end of the season. This season was extremely active and destructive, and produced a grand total of 23 tropical cyclones of which 22 became a named storm, 12 became hurricanes, and 6 further strengthened to major hurricane strength (C3+ on the Saffir-Simpson Hurricane Scale). The number of majors were the most since the 2005 season and the number of hurricanes is ti