Hurricane Frederic tidal floods of September 12-13, 1979, along the Gulf Coast, Bon Secour Bay quadrangle, Alabama

Shown on the Bon Secour Bay map are floodmark elevations and approximate areas flooded by Hurricane Frederic tides of September 12-13, 1979, along the shore of Bon Secour Bay, generally from Weeks Bay southward to Gasque, Alabama. Most homes along the northern shore of Bon Secour Bay were severely damaged by floodwater and tidal waves. Damage to homes along the southern shore was not as great. Storm-tide frequency and records of annual maximum tides at Mobile, Ala., since 1772, are presented. Offshore winds reached about 160 miles per hour. A wind-velocity of about 145 miles per hour was recorded near Dauphin Island, Ala. (USGS)