Atlantic hurricane
Tropical disturbances that reach tropical storm intensity are named from a pre-determined list. On average, 10.1 named storms form each season, with an average of 5.9 becoming hurricanes and 2.5 becoming major hurricanes (Category 3 or greater). The climatological peak of activity is around September 10 every season. Hurricane Wilma of 2005 was the most powerful hurricane ever recorded in history.