KEY WEST, Fla. (AP) - Isaac could pack a watery double punch for the Gulf Coast.
The National Weather Service warns if it hits during high tide, Isaac could push floodwaters as deep as 12 feet onto shore in Louisiana, Mississippi and Alabama and up to 6 feet in the Florida Panhandle. Isaac could dump up to 18 inches of rain over the region.
Louisiana Gov. Bobby Jindal called a state of emergency, and 53,000 residents of St. Charles Parish near New Orleans were told to leave ahead of the storm.