Isaac Storms Inland

Waves tear apart a pier along Mobile Bay near Dauphin Island on Tuesday, August 28, 2012 in Coden, Ala. Alabama took a glancing blow from Hurricane Isaac on Tuesday as it headed toward landfall in the northwestern Gulf of Mexico, but the storm still threatened the coast with high winds, torrential rain and pounding surf. (AP Photo/Butch Dill)

Gina Johnson wades through her front yard in Gulf Shores, Ala., on Wednesday, Aug. 29, 2012, after the coastal town took a glancing blow from Hurricane Isaac as it made landfall in Louisiana. While the storm brought heavy rain and wind to the Alabama coast, little significant damage was reported. (AP Photo/Jay Reeves)

Members of the Swift Water Rescue Team rescue stranded employees of WQRZ radio station in the Shoreline Park area of Bay St. Louis, Miss., during Hurricane Isaac on Wednesday, Aug. 29, 2012. Isaac was packing 80 mph winds, making it a Category 1 hurricane. It came ashore early Tuesday near the mouth of the Mississippi River, driving a wall of water nearly 11 feet high inland and soaking a neck of land that stretches into the Gulf. (AP Photo/Sun Herald, John Fitzhugh)

Lanny LaFrance, left, drives his boat while rescuing flood people from their flooded home as Hurricane Isaac hit Wednesday, Aug. 29, 2012, in Braithwaite, La. (AP Photo/David J. Phillip)

Carlo Maltese and his dog Pin ride in a boat after being rescued from his flooded home as Hurricane Isaac hits Wednesday, Aug. 29, 2012, in Braithwaite, La. (AP Photo/David J. Phillip)

Residents who were rescued from their flooded homes are transported to waiting assistance, after Hurricane Isaac made landfall and flooded homes with 10 feet of water in Braithwaite, La., Wednesday, Aug. 29, 2012. Isaac was packing 80 mph winds, making it a Category 1 hurricane. It came ashore early Tuesday near the mouth of the Mississippi River, driving a wall of water nearly 11 feet high inland and soaking a neck of land that stretches into the Gulf. (AP Photo/Gerald Herbert)

Homes are flooded as Hurricane Isaac hits Wednesday, Aug. 29, 2012, in Braithwaite, La. As Isaac made landfall, it was expected to dump as much as 20 inches of rain in several parts of Louisiana. (AP Photo/David J. Phillip)

A man holds a broken umbrella in the wind as Hurricane Isaac makes landfall, Wednesday, Aug. 29, 2012, in New Orleans, La. Isaac was packing 80 mph winds, making it a Category 1 hurricane. It came ashore early Tuesday near the mouth of the Mississippi River, driving a wall of water nearly 11 feet high inland and soaking a neck of land that stretches into the Gulf. (AP Photo/Eric Gay)

Members of the Army National Guard patrol Bourbon Street in the French Quarter as Hurricane Isaac makes landfall, Wednesday, Aug. 29, 2012, in New Orleans, La. Isaac was packing 80 mph winds, making it a Category 1 hurricane. It came ashore early Tuesday near the mouth of the Mississippi River, driving a wall of water nearly 11 feet high inland and soaking a neck of land that stretches into the Gulf. (AP Photo/Eric Gay)

Heavy rain and storm clouds from Hurricane Isaac blow across downtown New Orleans and the French Quarter Wednesday, Aug. 29, 2012. Hurricane Isaac began a slow, drenching slog inland from the Gulf of Mexico on Wednesday, pushing water over a rural Louisiana levee and stranding some people in homes and cars as the storm spun into a newly fortified New Orleans exactly seven years after Katrina. (AP Photo/Joey Bruett)

A research student from the the University of Alabama measures wind speeds as Hurricane Isaac makes landfall, Wednesday, Aug. 29, 2012, in New Orleans, La. Isaac was packing 80 mph winds, making it a Category 1 hurricane. It came ashore early Tuesday near the mouth of the Mississippi River, driving a wall of water nearly 11 feet high inland and soaking a neck of land that stretches into the Gulf. The storm stalled for several hours before resuming a slow trek inland, and forecasters said that was in keeping with the its erratic history. The slow motion over land means Isaac could be a major soaker, dumping up to 20 inches of rain in some areas. (AP Photo/Eric Gay)