The reasons for this weakening are not completely known yet ; while the eye-wall replacement cycle played a part , slightly increasing shear , dropping sea-surface temperatures , dry air on the western semicircle of the storm and interaction with the continental landmass also may have played a role in weakening the cyclone .
The reasons for this weakening are not completely understood yet ; while the eye-wall replacement cycle played a part , slightly increasing shear , dropping sea surface temperatures , dry air on the western semicircle of the storm and interaction with the continental landmass also may have played a role in weakening the cyclone .