Cat 4 possible Cat 5. I would not be taking a chance if i was in Galveston to NO. Anything within 15-20 miles of the coast, i would be loading up the car and heading inland. I would not want to take the chance of a wobble her or there bringing the most intense 25 miles of this storm overhead. I can see a Hugo type situation with a 10-20 mile wide stretch of heavy damage for up to 50 miles inland along the center of the storm. My advice to you if you are reading this board with in 15-20 miles of the coast in the warning area: Turn off the computer, pack the car and GO!