Hanna is being tilted to the east by the ULL. You can see the surface circulation.

http://www.ssd.noaa.gov/goes/flt/t2/loop-rgb.html

The ULL llooks to be sliding to the S or SW as it separates Hanna should be able to strenghten even more. Strong ridge over mid Atlantic states forecast to build in will help models verify. Only question mark is the gap in the ridge that the GFS is picking up on. This is reminding me of 04/05 when the Atlantic basin actually was ahead of the pacific in named systems which typically does not happen. Were not there yet but the next couple weeks could change things.