I am also concerned that Irma will ultimately end up slightly west of the official forecast. The WNW motion has definitely commenced, but it is more west than it is northwest. The last few radar frames even show a westward wobble, which means little for the overall forecast picture, but could make a big difference in the exact point of landfall on Florida's oblique coastline. Any prolonged westward movement will likely cause Irma to come ashore farther up the west coast. The next run of the Euro will be interesting.