 A strong ridge over the north Atlantic Ocean turned Emmy sharply eastward on August 29.The hurricane continued to strengthen, and Emmy attained a peak intensity of 105 mph (170 km/h) shortly after turning to the east while located 500 miles (800 km) northeast of Bermuda.The hurricane maintained its peak intensity for 42 hours while moving eastward at 17 mph (27 km/h), and slowly weakened after peaking in strength.