The 2001 Atlantic hurricane season was a fairly active Atlantic hurricane season that produced 17 tropical cyclones, 15 named storms, nine hurricanes, and four major hurricanes. The season officially lasted from June 1 to November 30, dates which by convention limit the period of each year when tropical cyclones tend to form in the Atlantic Ocean basin. The season began with Tropical Storm Allison on June 5, and ended with Hurricane Olga, which dissipated on December 6. 15 storms, 9 hurricanes, 4 major hurricanes (Category 3+). Strongest: Iris (145 mph). Accumulated cyclone energy ≈ 106. Wiki link