Former Tropical Storm Nakri strengthened into a typhoon and started to move toward Vietnam on Friday. At 4:00 p.m. EST on Friday the center of Typhoon Nakri was located at latitude 12.9°N and longitude 114.9°E which put it about 395 miles (635 km) east of Quy Nhon, Vietnam. Nakri was moving toward the west 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 977 mb.
The distribution of thunderstorms around Typhoon Nakri was asymmetrical. A broken ring of showers and thunderstorms surrounded the center of Nakri. The strongest thunderstorms were in the southern portion of the ring. Most of the strongest rainbands were in the southern half of the typhoon, although there was one strong rainband along the northern periphery of the circulation. Many of the other bands on the eastern and northern sides of Typhoon Nakri consisted primarily of showers and lower clouds. It appeared that sinking, drier air was limiting the development of thunderstorms in the northern half of the circulation.
In spite of the effects of the drier air, the size of the circulation around Typhoon Nakri increased on Friday. Winds to typhoon force extended out 45 miles (75 km) from the center of circulation. Winds to tropical storm force extended out 175 miles (280 km) from the center.
Typhoon Nakri will be moving through an environment marginally favorable for intensification during the next 12 to 24 hours. Nakri will move over water where the Sea Surface Temperature is near 28°C. It will move around the southern side of an upper level ridge over southeast Asia and the South China Sea. The ridge will produce easterly winds which will blow toward the top of the circulation. Those winds will cause moderate vertical wind shear which will inhibit intensification. Drier air to the north of Typhoon Nakri will also inhibit intensification. Nakri is likely to maintain its intensity during the next day or so, but it could start to weaken if the wind shear increases or more drier air sinks over the circulation.
The ridge over southeast Asia and the South China Sea will steer Typhoon Nakri toward the west during the next two to three days. On its anticipated track Typhoon Nakri could approach the coast of Vietnam in about 48 hours. Typhoon Nakri could bring gusty winds and a storm surge for the central coast of Vietnam. Nakri could drop locally heavy rainfall when it moves inland and flash floods could occur in some locations.
Elsewhere over the Western North Pacific Ocean, Tropical Storm Halong was speeding away from Miami Tori Shima, Japan. At 4:00 p.m. EDT on Friday the center of Tropical Storm Halong was located at latitude 30.9°N and longitude 161.1°E which put it about 580 miles (935 km) northeast of Minami Tori Shima, Japan. Halong was moving toward the northeast at 14 m.p.h. (22 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 983 mb.