Abstract
During October 12–15, 1965, the southern part of Florida received an unusually heavy and prolonged rainstorm. Although the conventional isobaric analyses did not reveal any obvious pre-existing disturbance which would be expected to produce such a result, isentropic charts suggest that intense convection was being initiated and sustained by an organized lift of conditionally unstable air to saturation. Accompanying the heavy rainfall was the formation in the lower troposphere during the 14th of a tropical depression which is thought to have been of convective origin.
