A tornado watch is effect for south Florida until 10 pm and will likely be extended through 2 am tonight.
We've had some interesting squall line propagation across the Keys this evening and had to issue a few Special Weather Advisories, many Marine Warnings, and a Flood Watch for the Keys. The Flood Watch is particularly interesting in that Key West has had over 11 inches of rain, with several stations reporting between 12 and 15 inches over the past 3 days. There was 3 feet of water inside Harpoon Harry's and most of the west end of the Island was impassable.
Will post some pictures when I can upload them.
The front heading toward the southeastern Gulf of Mexico has a very good chance to be the end of wet season and mark the last chance for tropical development in the Gulf.

Cheers,
BC