There is a real nice twilight crit in Tampa on the 27th and a circuit race in Pinellas Park (just north of St. Petersburg) on the 28th.
http://www.floridacycling.com/
Probably some other races, but those are part of the 'circuit' that the FL rides race. A good resource is also
http://www.floridaracingmagazine.com/ an online magazine that covers FL racing.
Mark