Immediately after becoming a tropical storm, the movement of Tanya became hindered by a nearby upper-level low, and it quickly turned eastward before virtually stalling early on October 28. The upper-level low also influenced Tanya in giving it some subtropical characteristics, including a comma-shaped cloud band and maximum winds far from the center of the storm at the time. Despite that, the storm gradually strengthened as it remained over warm waters of about 81 °F (27 °C). That afternoon, it gained full tropical characteristics, as an eye featured was beginning to form in the central dense overcast. The eye became clearly defined, although it was small in size. Early on October 29, Tropical Storm Tanya was upgraded to a hurricane, the eleventh of the 1995 season, as it turned northward in response to the nearby low.