Powerful Typhoon Talim strengthened west of Okinawa on Wednesday, while Typhoon Doksuri moved closer toward Vietnam. At 8:00 p.m. EDT on Wednesday the center of Typhoon Talim was located at latitude 26.6°N and longitude 124.6°E which put it about 210 miles (335 km) west of Okinawa. Talim was moving toward north-northwest at 7 m.p.h. (11 km/h). The maximum sustained wind speed was 130 m.p.h. (215 km/h) and there were wind gusts to 160 m.p.h. (260 km/h). The minimum surface pressure was 937 mb.
Talim evolved into a large powerful typhoon on Wednesday. A large circular eye with a diameter of 60 miles (95 km) developed at the center of Typhoon Talim. A ring of strong thunderstorms surrounded the eye and the strongest winds were occurring in those storms. Numerous bands of showers and thunderstorms were revolving around the core of Talim. The thunderstorms in the core of Talim were producing upper level divergence that was pumping mass away from the typhoon.
Typhoon Talim will move over water where the Sea Surface Temperature is near 30°C. The upper level winds are weak over the core of Talim, but there are stronger westerly winds north of the typhoon. Talim could strengthen some more during the next 24 hours. However, the stronger upper level winds will increase the vertical wind shear on Friday and the typhoon will start to weaken when that happens.
Typhoon Talim is moving around the western end of a subtropical ridge, which is steering the typhoon toward the north-northwest. Typhoon Talim will move north on Thursday as it rounds the western end of the ridge. The westerly winds north of Talim will turn the typhoon toward the northeast on Friday. On its anticipated track Typhoon Talim could approach Kyushu in two or three days.
Tropical Storm Doksuri strengthened on Wednesday as it moved closer to Vietnam. At 8:00 p.m. EDT on Wednesday the center of Typhoon Doksuri was located at latitude 16.2°N and longitude 112.2°E which put it about 470 miles (760 km) east-southeast of Vinh, Vietnam. Doksuri was moving toward the west-northwest at 14 m.p.h. (22 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 978 mb.
The circulation of Doksuri became much more organized on Wednesday. A primary rainband wrapped around the center of circulation and an eye appeared to be developing. Additional bands of showers and thunderstorms developed and began to revolved around the core of Doksuri. Thunderstorms round the core were generating upper level divergence which pumped mass away from the typhoon.
Typhoon Doksuri will be moving through an environment that will be favorable for intensification on Thursday. Doksuri will move over water where the Sea Surface Temperature is near 29°C. An upper level ridge over eastern Asia is producing easterly winds which are causing some vertical wind shear over Doksuri. The wind shear may slow intensification, but it will not stop it.
The ridge north of Doksuri is steering the typhoon toward the west-northwest. On its anticipated track the center of Typhoon Doksuri is forecast to pass south of Hainan Island. Typhoon Doksuri could approach the coast of Vietnam in a little over 24 hours. Doksuri could bring strong winds and heavy rain to northern Vietnam. The heavy rain could cause flash floods.