Why does the Florida peninsula experiences the greatest frequency of midafternoon thunderstorms of any place in the US?

The Florida peninsula experiences the greatest frequency of midafternoon thunderstorms due to its unique geographical and meteorological conditions. The warm, humid air from the Gulf of Mexico and the Atlantic Ocean rises and cools, leading to convective storms. The intense solar heating during the day further enhances convection, causing frequent thunderstorms, particularly in the afternoon when the atmosphere is most unstable. Additionally, the peninsula's flat terrain allows for easy airflow and moisture accumulation, contributing to the development of these storms.