Between 1200
UTC September 14 and 0000
UTC September 15, visible satellite imagery of the vortex revealed a resemblance to a
tropical cyclone, with an eye-like feature about 19 miles (30 km) wide.
[1] In addition to the eye, convective clouds had also formed, creating the eyewall of a tropical cyclone.
[2] Furthermore, feeder bands of convective showers continued extending westward to about 310 miles (500 km). Soon after the cyclone passed buoy 45008, winds turned to the east-northeast and rapidly increased. In contrast to earlier in the storm's life, which had more energy in the high levels, now it was near the surface. Surface analysis indicated that a weaker cyclonic circulation perisisted over the eastern shore of
Lake Huron with another center north of
Lake Ontario.
[1] During this 12-hour period, the cyclone diminished rapidly, mainly in the lower troposphere. Twelve-hour height rises also occurred ranging from 66 – 197 feet (20 – 60 m). The cyclone decayed and left Lake Huron September 15.
[1]
