These dates, adopted by convention, historically describe the period in each year when most tropical systems form.
While Lorenzo did not affect land as a Category 5 hurricane, it caused US$367 million in damage and killed 19, with over half of the deaths being attributed to the sinking of a tugboat known as the Bourbon Rhode.
[5][6][7] In March 2021, the name Dorian was retired from reuse in the North Atlantic by the World Meteorological Organization.
[8] This timeline documents tropical cyclone formations, strengthening, weakening, landfalls, extratropical transitions, and dissipations during the season.
Additionally, figures for maximum sustained winds and position estimates are rounded to the nearest 5 units (knots, miles, or kilometers), following the convention used in the National Hurricane Center's products.