Convection steadily deepened on September 11 east of the upper level low and the surface low; it was classified as Tropical Depression Nine the next day. The disorganized storm moved westward, then northward, where it strengthened into Tropical Storm Hanna later that day. After reaching a peak with winds of 55 mph (90 km/h), it made two landfalls on the Gulf Coast, eventually dissipating on September 15 over Georgia.[35]