Rich,
Don't worry about the circulation off of the Mississippi/Louisiana coast. It's not tropical, but it could produce a heck of a lot of rain. Here in Central Florida, we've had some pretty powerful storms rolling through in the last half an hour. Very heavy rain, excessive lighting (looks like some has been hiting ground, in the house we've had some lights glitching, thank god for a APC on the computer) and there has also been some wind gusts to about 30 or 35 MPh. There's more coming too. Looks like Tuesday could be even stormier than this as we could have even more radiational and surface heating with less debris cloudiness.

Could this weather mean trouble for Central Floridans?

Nah!

I love this stuff!