A weak, non-tropical system is moving northwestward across far south Florida this Wednesday morning. The system, tied to an upper level closed low, was spreading cloudiness, rain, showers and thunderstorms northward and northwestward early this morning. As of 7:30 a.m. E.D.T., on Aug. 28, 2013, most of the precipitation associated with this system was located south of Alligator Alley.
With solar heating and a further drift to the northwest, showers and thunderstorms will redevelop across much of south Florida today. Some of the storms may produce local gusty winds (to 50 miles per hour) and locally heavy rainfall.
Given the amount of rain that has already fallen so far this month and this summer across south Florida, this system is bringing more unwanted rainfall.
Forecasters at the National Hurricane System do not expect the system to develop into anything of a tropical nature. This is because much of the cold upper level circulation is located, and will remain, over land.
However, the system’s slow movement and ample moisture field means that showers and thunderstorm activity will continue until further notice.
© 2013 H. Michael Mogil