Typhoon Champi brought wind and rain to Iwo To on Friday night. At 11:00 p.m. EDT on Friday the center of Typhoon Champi was located at latitude 25.4°N and longitude 139.9°E which put it about 105 miles (165 km) west of Iwo To. Champi was moving toward the north at 13 m.p.h. (20 km/h). The maximum sustained wind speed was 75 m.p.h. (120 km/h) and there were wind gusts to 90 m.p.h. (145 km/h). The minimum surface pressure was 982 mb.

Bands of showers and thunderstorms on the eastern side of Typhoon Champi brought wind and rain to Iwo To on Friday night. Although the center of Champi was passing west of Iwo To, the circulation around the typhoon was producing gusty winds and rain over the island. The core of Typhoon Champi was passing west of Iwo To. Winds to typhoon force extended out 25 miles (40 km) from the center of Champi. However, winds to tropical storm force extended out 100 miles (160 km) from the center of circulation.

Typhoon Champi will move through an environment unfavorable for intensification during the next several days. Champi will move over water where the Sea Surface Temperatures are near 27°C. It will move under the southeastern part of an upper level trough over Japan. The trough will produce southwesterly winds which will blow toward the top of the typhoon. Those winds will cause moderate vertical wind shear. The wind shear will inhibit intensification, but Typhoon Champi could maintain its intensity during the next 12 hours. The vertical wind shear will increase on Saturday, when Champi moves closer to the upper level trough. Typhoon Champi will weaken when the shear increases. Champi will also move over cooler water by Sunday.

The upper level trough over Japan will steer Typhoon Champi toward the northeast during the weekend. On its anticipated track Champi will move away from Iwo To on Saturday. Typhoon Champi could be southeast of Tokyo in 30 hours.