The 2010 Atlantic hurricane season was the most active hurricane season since 2005 and the first of three consecutive active hurricane seasons, each with 19 named storms. This well above average activity included 12 hurricanes, equaling the number that formed in 1969. The season officially began on June 1 and ended on November 30, dates that conventionally delimit the period during each year when tropical cyclone formation is most likely. The first cyclone, Alex intensified into the first June hurricane since Allison in 1995. The month of September featured eight named storms. October featured five hurricanes, including Tomas, which became the latest on record in a calendar year to move through the Windward Islands. Activity was represented with an accumulated cyclone energy (ACE) value of 165 units, which was the eleventh highest value on record at the time. The activity in 2010 was heightened due to a very strong La Niña, which also led to an very inactive Pacific hurricane season. 19 storms, 12 hurricanes, 5 major hurricanes (Category 3+). Strongest: Igor (155 mph). Accumulated cyclone energy ≈ 165. Wiki link