Probably it will not have a lasting effect, but there is always a chance the weatherman is wrong. The Forecasters at NHC are Pretty good and They have a good track record, However Weathermen are not perfect, Well Tom Terry at WFTV is a real good one, he is one of the few that predicted Charley in 04 would take a right turn and would pass over OrlandoActually the forecast hasn't changed much... You look at the big cone, not the line. Anyone getting worried about this event has never seen a strong thunderstorm before, as it won't have any lasting impact on Jacksonville.
I'll be the first to admit I've messed up a forecast or two over my years...However Weathermen are not perfect
I don't think anyone is saying they should... Anyone in the path of a hurricane (and in the threat area too!) should always be paying attention to the latest information. But I don't think they need to start packing up and heading to Georgia...they don't need to let their guard down either, that is irresponsible.