The newest tropical depression in the northwestern Pacific Ocean formed Sunday, Sept. 11 far to the east of the big island of Japan. Tropical Depression 17W didn't have a long life, however, as the final warning on the system was issued 12 hours later. By Sept. 12 the storm lost its tropical characteristics.
At 5 a.m. (0900 UTC) on Sunday, Sept. 11 Tropical Depression17W formed about 590 nautical miles east-southeast of Misawa, Japan. Infrared data from Japan's Himawari satellite showed that the depression appeared somewhat elongated.