Hurricane Ana (2021)

Hurricane Ana was a very unusual February category 1 hurricane that made landfall in Florida on Valentine's Day. Ana was a very surprising storm to form, because it nearly reached category 2 status in February, despite fairly strong wind shear and water temperatures of only in the upper 60s degrees Fahrenheit.

Meteorological History
On February 8, the NHC issued a special tropical outlook for the development of an upper-level low into a subtropical or tropical cyclone, giving the system a 10% chance of development in 48 hours and a 20% chance in 5 days. The next day, the system was designated "Invest 91L" by the NHC, and its development chances were raised to 20% in 48 hours and 40% in 5 days. Convection increased at the center of the storm, becoming less frontal in nature and more tropical. The next day, development chances were raised to 60% by the NHC.

On February 11, the system acquired significant convection and a moderately warm-core center, being designated Subtropical Storm Ana. Just hours later, Ana became fully tropical.