2021 Atlantic hurricane season (mfb)

The 2021 Atlantic hurricane season was an above-average and destructive Atlantic hurricane season, featuring 15 named storms, 9 hurricanes, and 3 major hurricanes, which caused a total of TBD in damages and TBD fatalities. 2021 was the first year that the New Atlantic Name List was enacted, resulting in an entirely new set of storm names. The season officially began on June 1, 2021 and ended on November 1, 2021. These dates historically describe the period each year when most tropical cyclones form in the Atlantic basin and are adopted by convention. However, the formation of Tropical Storm Aria on May 11, 2021 marked the earliest formation of a tropical system since 2017. Most of the season's damage was due to Hurricanes Harry and Marika, while Hurricane Kathleen was considered to be the worst natural disaster in the history of Jamaica. These three names were retired after the season's end because of the destruction they wrought.

Prior to the beginning of the season, most forecasting groups predicted a slightly above-average season due to warm ocean temperatures and the development of a La Niña, predictions which proved prudent.