Hawaii braces for rough weather

Spectators line the coast to watch large swells generated by the approaching tropical storm Iselle in Pohoiki, on the Big Island of Hawaii.  (Bruce Omori / EPA)

A large wave generated by tropical storm Iselle sends whitewater high up the shoreline, surprising spectators in Pohoiki, on the Big Island of Hawaii.  (Bruce Omori / EPA)

Spectators line the coast to watch surfers riding large swells generated by the approaching tropical storm Iselle in Pohoiki, on the Big Island of Hawaii.  (Bruce Omori / EPA)

Crowds line up inside the departures terminal at the Honolulu International Airport. Hawaiian Airlines announced Thursday that it is waiving change fees for passengers trying to leave before the hurricanes hit the islands.  (Marco Garcia / Associated Press)

Workers at the Menehune Water Co. load five-gallon bottles of water into a customer’s truck in Aiea, Hawaii. Bottles of water are quickly disappearing off shelves in Hawaii ahead of predicted back to back hurricanes.  (Marco Garcia / Associated Press)

Staff members of the Royal Kona Resort in Kailua, Hawaii take down umbrellas as the resort prepares for Hurricane Iselle.  (Chris Stewart / Associated Press)

A couple read a weather update written on a white board in the lobby of a hotel in Waikiki in Honolulu on Thursday afternoon.  (Marco Garcia / Associated Press)

A satellite image taken at 5 a.m. PDT Aug. 7, shows Hurricane Iselle, left, and Hurricane Julio.   (NOAA / Associated Press)