(Click the pic to see the animated loop...)
This view is too close-in to see Irma until it reaches Cuba -- but, when you click the pic to animate it, note the "river" of Pacific moisture streaming eastward across Mexico and the Gulf. Maybe that will help push Irma east of FL. OTOH, that red blob of moisture forming off of Mexico is labeled in NautiNurse's first graphic as a "Tropical Disturbance". Wherever that thing meets up with Irma ,things could get interesting...
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(H/T: raybbr)
This wide satellite composite shows both Irma, and the stream of Pacific moisture flowing eastward across the Gulf. It also shows that the "Tropical Disturbance" in the western gulf may be pooping out...