FILE- In this Friday, Aug. 26, 2011 file photo, Home Depot employees, Richard Howell, left, and Farid Elattar, right, load up emergency generators for Virginia Beach residents in preparation for the arrival of Hurricane Irene in Virginia Beach, Va. The National Hurricane Center will start issuing advisories giving deadlines for when communities should complete their storm preparations. The experimental advisories will show when tropical-storm force winds may hit particular communities to help them understand when it's too late to put up storm shutters or evacuate. (AP Photo/Steve Helber, File)