Actually Hurricanes dont have a mind of their own. They are steered by the flow in the atmosphere. A hurricane can have a pressure of 898mb but still be pulled north by a strong trough. They do enhance a ridge by pumping more heat above but they dont crash thru fronts. Im sure you didnt mean that, but just saying hurricanes are controlled by ridges and troughs and strength is affected many other ways... windshear,ssts, etc...

Dean should continue a W-WNW path for 3 days and near the south coast of haiti. By then we will see if the Upper low just NE of the bahamas is moving quick enough into the eastern gulf or models might adjust in time...but this is almost 60-72hrs out. Models adjust from run to run. Anything more then 3 days can change...and even before that.