 It remained fairly well organized with a distinct eye as it became wedged in a narrow zone of warm air between the cold front to the west and the upper-level low to the northeast.Despite slightly cooler water, Tanya strengthened a bit more that afternoon, reaching its peak intensity of 85 mph (135 km/h) with a barometric pressure of as the forward speed increased.That intensity was maintained until late on October 31, when Tanya began to weaken as it traveled over cooler waters and the eye became obscured.