 On September 8 , an upper @-@ level trough spawned a tropical depression southeast of Bermuda ; the next day it was upgraded to Tropical Storm Henri . Struggling against strong westerly wind shear , the system attained a peak intensity of 50 mph ( 85 km / h ) and a minimum pressure of 1003 mbar ( hPa ) , possibly due to baroclinity . Thereafter , increasing interaction with the same upper @-@ level trough to the west degraded Henri 's circulation . It opened up into a trough on September 11 ; the remnants were later absorbed into a non @-@ tropical cyclone over the North Atlantic several days later . 
