Looks like the first squall line just passed and the winds have turned on from the NW. Seeing the SW flow in advance can be disturbing until the typical 90 degree wind shift kicks in with the passage of the leading edge. Another section of the leading edge of this wet front to go, looks like it is moving fast too.
http://fksa.org/showthread.php?t=5277
The livecam at the Tradewinds Resort on St. Pete Beach. You can see the windshift and squall line at the leading edge move through in the animation. The image above was taken after the wind shift to the NW.
http://www.baynews9.com/Sky9.html
Hope things come together real soon for a great race!