Area-average rainfall variations on sea-breeze days in south Florida.

Abstract

Area-averaged rainfall and the time variations of peninsula-scale surface divergence and hourly rainfall on sea-breeze days are affected by the value of midtropospheric humidity, and lower tropospheric lapse rate, wind speed, and wind direction measured at 0700 EST. Days with relatively high humidity and steep lapse rates typically have deep convective activity that tends to develop sooner and reach its peak earlier than normal. Also, on such days surface convergence is significantly less than average in the late afternoon and early evening.-from Authors