Hurricane Frederic tidal floods of September 12-13, 1979, along the Gulf Coast, Chickasaw 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 from about one mile north of Satsuma, Alabama, to Chickasaw, 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. Extensive wind damage occurred along the Mobile River in addition to minor flood damage to some houses and industrial complexes. (USGS)