 Vera drifted northward until an upper level ridge forced the storm to the east , providing upper level outflow for Vera to strengthen to a typhoon on August 20 . On August 22 , Vera attained winds of 165 km / h ( 105 mph ) before the weakening ridge forced the typhoon to the west , retracing its path it took days before . The typhoon slowly weakened , and hit Okinawa on August 25 as a 155 km / h ( 100 mph ) typhoon . Vera turned to the northeast , hit South Korea on August 28 as a minimal typhoon , and became extratropical on August 29 in the Sea of Japan . A total of 23 people were killed from the storm , with moderate to heavy damage in its path as far north as the Soviet Far East . Damage totalled US $ 22 million ( 1986 dollars ) across South Korea . 
