 Wind shear briefly decreased , allowing the cyclone to peak with winds of 50 mph ( 85 km / h ) and a minimum pressure of 1 @,@ 001 mbar ( 29 @.@ 6 inHg ) at 12 : 00 UTC on September 21 . However , shear increased later that day , causing slow weakening . Ida then decelerated and began moving in a general eastward direction on September 22 after becoming embedded in the flow associated with a mid- to upper @-@ level trough . Early on September 24 , the storm weakened to a tropical depression . During the following day , the trough was replaced with a subtropical ridge , causing Ida to turn northwestward and then west @-@ northwestward on September 26 . After shear and dry air caused much of the convection to diminish , Ida degenerated into a remnant low around 12 : 00 UTC on September 27 while situated about 1 @,@ 000 mi ( 1 @,@ 610 km ) east @-@ northeast of Barbuda . 
