Tropical Storm Wutip formed southeast of Chuuk on Tuesday. At 4:00 p.m. EST on Tuesday the center of Tropical Storm Wutip was located at latitude 4.6°N and longitude 155.2°E which put it about 295 miles (475 km) southeast of Chuuk. Wutip was moving toward the west at 15 m.p.h. (24 km/h). The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h). The minimum surface pressure was 1000 mb.
A Typhoon Watch was issued for Puluwat and Satawal. A Tropical Storm Warning was in effect for Nukuoro, Losep, and Chuuk. A Tropical Storm Watch was issued for Fananu and Ulul.
Thunderstorms developed near the center of a low pressure system southeast of Chuuk on Tuesday and the Japan Meteorological Agency designated the system as Tropical Storm Wutip. Thunderstorms continued to form near the center of Wutip and those storms were starting to generate upper level divergence. Bands of showers and thunderstorms formed in the northern and western portions of the circulation. Bands south and east of the center consisted primarily of showers and lower clouds although there were a few thunderstorms in some of those bands. Winds to tropical storm force extended out about 150 miles (245 km) from the center of circulation in the northern half of Wutip and out about 100 miles (160 km) in the southern half of the tropical storm.
Tropical Storm Wutip will move through an environment favorable for intensification. Wutip will move over water where the Sea Surface Temperature is near 30°C. An upper level ridge east of Tropical Storm Wutip will produce easterly winds which will cause some vertical wind shear. However, the wind shear will not be strong enough to prevent intensification. Tropical Storm Wutip will intensify during the next several days. Wutip could strengthen into a typhoon with 24 to 36 hours. A period of rapid intensification could occur once an inner core becomes more well organized. Tropical Storm Wutip could strengthen to the equivalent of a major hurricane in three or four days.
Tropical Storm Wutip will move around the western end of a subtropical ridge. The ridge will steer Wutip toward the northwest during the next few days. On its anticipated track Tropical Storm Wutip could approach Guam in three days. Wutip is likely to be a typhoon at that time.