 The bark Cavallo encountered experienced severe weather in the eastern Gulf of Mexico between September 13 and September 15 . It is believed that a tropical storm developed on September 14 . Moving northeastward , the storm made landfall near modern @-@ day Palmetto , Florida at 15 : 00 UTC , with winds of 70 mph ( 110 km / h ) . While crossing the state , the storm brought severe damage . Ships remained in port at river ports in the state and at St. Marys , Georgia . After emerging into the Atlantic Ocean near Oak Hill , Florida early on September 15 , the system reached hurricane status several hours later . Shortly thereafter , the storm intensified into a Category 2 hurricane , peaking with winds of 105 mph ( 165 km / h ) . On September 16 , the hurricane passed offshore North Carolina and then weakened to a Category 1 hurricane while east of the Mid @-@ Atlantic states . 
