Tropical Depression 12L (2021)

Tropical Depression 12L was the final storm of the near-average 2021 Atlantic hurricane season. Even though peak only reached 35 miles per hour, its large size combined with slow movement caused destructive flooding in Puerto Rico. It formed on November 4, and didnt intensify due to the relatively cold temperatures of the area. As the temperatures got hotter near the coast, it intensified to its peak of 35 miles per hour, only to weaken again and touch down on the Mayaguez-Rincon area of Puerto Rico. It spent 1/2 days until moving into the northern Atlantic ocean, where high shear and very frigid temperatures ripped it apart. It dissipated on November 9.

Damage
Damage on the Lesser Antilles was minor, the only major being flooding in the Virgin Islands. However, on Puerto Rico, vast flooding and landslides occured, which flooded many small towns. Government response was delayed due to these landslides, and thus, minor outbreaks of mosquito-related diseases appeared. Damage totaled to about $3.23 billion, and 35 deaths were reported.