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By PDC’s Senior Weather
Specialist Glenn James

The Pacific Disaster Center’s (PDC Global) Wednesday, June 11, 2025, Tropical Cyclone Activity Report…for the Pacific Ocean, the Indian Ocean, and adjacent Seas

Current Tropical Cyclones:

Tropical Cyclone 01W (Wutip)…is located about 130 NM east-northeast of Da Nang, Vietnam

Northeast Pacific Ocean: There are no Tropical Cyclones

South of southern Mexico

Invest 93E

>>> A large area of disorganized showers and thunderstorms located several hundred miles southwest of the Gulf of Tehuantepec is associated with a broad area of low pressure. Environmental conditions appear conducive for development of this system, and a tropical depression is expected to form late this week or this weekend while it moves generally west-northwestward just offshore of the southwestern coast of Mexico.

* Formation chance through 48 hours…medium…60 percent
* Formation chance through 7 days…high…90 percent

Offshore of Central America and Southern Mexico

>>> An area of low pressure is forecast to develop late this weekend or early next week near the coast of Central America. Environmental conditions appear conducive for some gradual development of this system as it moves west-northwestward near the coasts of Central America and southern Mexico.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…low…20 percent

Central Pacific Ocean: There are no Tropical Cyclones

Tropical cyclone formation is not expected during the next 7-days.

Western Pacific, Indian Ocean, and adjacent Seas:

Western Pacific

Tropical Cyclone 01W (Wutip)

According to the JTWC Warning number 7, sustained winds are 40 knots with gusts to 50 knots

Animated enhanced infrared (eir) satellite imagery depicts deep convection building southwest of a partially obscured low-level circulation center. Divergent upper-level outflow southwestward is identifiable on water vapor imagery. Distinct cloud bands are apparent in clear air to the northwest, but the tilted and broad nature of the circulation provides a challenge in identifying the low-level circulation center on eir.

Tropical depression 01W is forecast to track northwestward on the southern periphery of a subtropical ridge to the northeast. the track speed will slow as the system approaches the ridge axis at 48 hours. A deep-layer trough will begin to interact with TD 01W after 72 hours, resulting in shallowing of the vortex and an increase in track speed.

The system will continue to combat high vertical wind shear introduced from a tropical upper tropospheric trough (tutt) cell to the northwest, but is expected to fill within the next 12 hours. By 24 hours, an upper-level shortwave trough will allow for a poleward outflow channel and a more favorable upper-level environment for development.

TD 01W will continue to intensify to a peak of 50 knots by 36 hours, at which time topographic interaction with Hainan Island will initiate a weakening trend. The system will continue to weaken as it passes over the Gulf on Tonkin, and continue to make landfall in mainland China between 48-72 hours. The system will dissipate by 96 hours.