I don't want to be a panic-mongerer but the advisories are all about like this one:
Very powerful winds are going to continue to spread onshore quite a distance away from the center. The effects of Isaac, including wind, are going to be felt along a large portion of the northern Gulf Coast as well as points further inland. PLEASE do not take this Category 1 hurricane lightly. With extreme rainfall and Category 3 type storm surge, Isaac is likely to be the costliest Category 1 hurricane in United States history.
