Hurricane specialist Dan Brown reviews the tracks and intensity of Hurricane Irene at the National Hurricane Center on Friday, August 26, 2011, in Miami.The hurricane warning was extended into the Chesapeake Bay as far as Drum Point, and existing warnings remained in effect from North Carolina to New Jersey. A hurricane watch was in effect even farther north and included Long Island, Martha's Vineyard and Nantucket, Mass.   (AP Photo/Jeffrey M. Boan)

Photo by: Jeffrey Boan

Hurricane specialist Dan Brown reviews the tracks and intensity of Hurricane Irene at the National Hurricane Center on Friday, August 26, 2011, in Miami.The hurricane warning was extended into the Chesapeake Bay as far as Drum Point, and existing warnings remained in effect from North Carolina to New Jersey. A hurricane watch was in effect even farther north and included Long Island, Martha's Vineyard and Nantucket, Mass. (AP Photo/Jeffrey M. Boan)