On the WV loop you can see the high to the west of Florida and the high to the east of Florida that's building in over the Bahamas. Unfortunately you can see the trough currently right over Florida. This is the "alley" that Ivan will eventually take. If the high builds to the west further Ivan gets forced more into the GOM. High recedes back to the east and Ivan makes the north turn early and stays off the coast of Florida. The two highs stay where they are and Ivan tracks up the state, either along one of the two coasts or up the middle.