The storm is at 45MPH sustained this morning. I agree with Tavores, this is way too much shifting they're doing, but each time the models are. Still, the track is generally towards Florida and Cuba. Whether or not it goes up the East or West coast of Florida, we need to think about what we'd (People living there, not all of us) do in the event that it does. Generally the median of the models are centered over Florida, although GFS has shifted this latest run. Even though this might sound idiotic, we should probably hope it does go over or towards the East coast. If it goes into the Gulf there will be some serious trouble given the SST's out there. Some of you have already said that much though. I'm wondering if the trof that will be left over the eastern half of the US will pick the system up if it's still in place as in the upper-levels it likely will be.
Edit: If anything in here didn't make sense, blame it on the 'Case-of-the-Morning'.
That's what makes the Euro scary, it still wants to blow Isaac up in the Central Gulf and send it west of New Orleans. It's the only model going that far west so it's technically an outliner, but that doesn't mean it's not right or doesn't have the right idea overall.
If anyone doesn't quite understand why the difference between the GFS/ECMWF is the way it is, part of it is because of the timing of how fast the Central Atlantic ridge breaks down allowing for a weakness/opening for Isaac to go through, but another reason is the GFS manages to keep Isaac's circulation in tact even after taking what seems like a vacation across all of Cuba, I don't buy into that. Meanwhile the ECMWF keeps Isaac disorganized and the circulation decoupled (not vertically stacked together from low/mid/upper levels) along with the fact that the Central Atlantic Ridge is still strong and further west towards the East Coast. It doesn't get it's act together until it's in the Gulf exploding. I don't really buy into this either, more so because it lacks any model support for this.
EDIT: Just looking at the 5am NHC track again, the center track of the cone wouldn't interfere with Haiti too much if at all and it would only brush over the Eastern edge of Cuba after that so I guess it's plausible for it to still be a Cat 1 hurricane once it's near the S. FL/FL Keys. Something else to take note of concerning the center track of the cone, Isaac will have to start moving WNW by later today, if not and it's still moving west the NHC will have to shift their track back to the south and west again. Also if it's south of Haiti by 75W, I think a SE/E Coast track can be taken off the table.