Tropical Storm Danas moved near the southern Ryukyu Islands late on Wednesday. At 11:00 p.m. EDT on Wednesday the center of Tropical Storm Danas was located at latitude 23.9°N and longitude 124.1°E which put it about 30 miles (50 km) south of Ishigaki, Japan. Danas was moving toward the north at 21 m.p.h. (34 km/h). The maximum sustained wind speed was 45 m.p.h. (75 km/h) and there were wind gusts to 60 m.p.h. (95 km/h). The minimum surface pressure was 990 mb.
The circulation around Tropical Storm Danas exhibited a little more organization on Wednesday. More thunderstorms formed near the center of circulation and several bands of showers and thunderstorms formed in the eastern half of the circulation. The bands north and west of the center consisted primarily of showers and lower clouds. Storms near the center began to generate upper level divergence which pumped mass away to the northeast of the tropical storm. Winds to tropical storm force extended out about 125 miles (200 km) from the center of circulation.
Tropical Storm Danas will move into an environment somewhat favorable for intensification. Danas will move over water where the Sea Surface Temperature is near 30°C. A small upper level low near Taiwan will produce southwesterly winds which blow toward the top of the circulation around Tropical Storm Danas. Those winds were the reason why the stronger rainbands were in the eastern half of the circulation. Those winds will cause moderate vertical wind shear, which will inhibit intensification. However, the shear will have less of an effect since Danas will move in the same direction as the upper level winds. Tropical Storm Danas is likely to intensify during the next 24 hours and there is a chance it could strengthen into a typhoon.
Tropical Storm Danas will move around the western end of a subtropical ridge over the western North Pacific Ocean. The ridge will steer Danas toward the north-northeast. On its anticipated track Tropical Storm Danas will move through the southern Ryukyu Islands during the next few hours. Danas will bring gusty winds and locally heavy rain when it passes over those islands. Tropical Storm Danas will move over the East China Sea toward southwestern Japan and South Korea during the next several days.