that's actually one of the things that makes the models so hard to get accurate...they are basically creating a model using model data, and if the model data is inaccurate, then the resulting model will be inaccurate also.

So basically the GFS is using the future model that was just posted, and that model is assuming that the ridge that Hanna is part of will be creating a northerly flow weakness in the high pressure over Florida. So this still fits into one of the two camps of scenarios that are possibilities at this point. Over the next 24 hours, as we see how quickly Hanna moves out and pulls the ridge with it, we will see if Ikes south movement takes it to far to follow this or not.