Tropical Storm Dolphin passed southeast of Japan on Wednesday. At 11:00 a.m. EDT on Wednesday the center of Tropical Storm Dolphin was located at latitude 32.9°N and longitude 141.4°E which put it about 200 miles (320 km) south-southeast of Tokyo, Japan. Dolphin was moving toward the northeast at 19 m.p.h. (31 km/h). The maximum sustained wind speed was 65 m.p.h. (105 km/h) and there were wind gusts to 80 m.p.h. (130 km/h). The minimum surface pressure was 986 mb.
An upper level trough over eastern Asia steered Tropical Storm Dolphin quickly toward the northeast on Wednesday. The trough carried Dolphin southeast of Tokyo. Winds to tropical storm force extended out 175 miles from the center of Dolphin. The northern periphery of tropical storm Dolphin was bringing gustier winds to parts of the coast of Honshu. Most of the rain falling in Tropical Storm Dolphin fell southeast of Honshu.
The upper level trough will carry Tropical Storm Dolphin east of Japan. Although Dolphin is currently over water where the Sea Surface Temperature is near 28°C, the tropical storm will soon move over cooler water. The upper level trough and the cooler water will cause Tropical Storm Dolphin to make a transition to an extratropical cyclone during the next several days.