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

Shown on a topographic map are floodmark elevations and approximate areas flooded by Hurricane Frederic tides of September 12-13, 1979, along the western side of the Mobile River and Mobile Bay from Pritchard, Alabama, to the Forest Park section of Mobile, Alabama. Storm-tide frequency and records of annual maximum tides at Mobile, Alabama, 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, Alabama. Most of the waterfront improvements in Mobile Bay were either destroyed or heavily damaged. (USGS)