 After passing about 350 miles ( 565 km ) east of Bermuda on September 10 , Erika turned to the east @-@ northeast in response to westerly steering currents . Increased upper @-@ level wind shear weakened the hurricane to a tropical storm on September 12 . Erika continued to weaken as it turned to the east @-@ southeast , though it maintained deep convection near the center despite unfavorable atmospheric conditions . On September 14 the storm turned to the northeast again , and re @-@ strengthened to reach winds of 70 mph ( 110 km / h ) while located 510 miles ( 820 km ) west @-@ southwest of the Azores . On September 15 Erika passed near the western Azores islands , and quickly weakened as deep convection diminished . Erika became an extratropical cyclone on September 16 north of the Azores , and after executing a clockwise loop , the extratropical storm dissipated on September 19 about 230 miles ( 370 km ) southwest of Ireland . 
