Tropical Cyclone 02E (Barbara) / Tropical Cyclone 03E (Cosme) / Invest 92W – Pacific
Saturday, June 7, 2025

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By PDC’s Senior Weather
Specialist Glenn James

The Pacific Disaster Center’s (PDC Global) Sunday, June 8, 2025, Tropical Cyclone Activity Report…for the Pacific Ocean, the Indian Ocean, and adjacent Seas

Current Tropical Cyclones:

Tropical Cyclone 02E (Barbara)…is located about 235 miles west-southwest of Zihuatanejo, Mexico
Tropical Cyclone 03E (Cosme)…is located about 650 miles south-southwest of the southern tip of Baja CA

 

Northeast Pacific Ocean:  

Tropical Cyclone 02E (Barbara)

BARBARA EXPECTED TO BECOME A HURRICANE ON MONDAY

According to the NHC advisory number 4
Barbara is moving toward the west-northwest near 12 mph and this motion is expected to continue for the next couple of days. A turn toward the west at a slower forward speed is anticipated on Tuesday.
Maximum sustained winds have increased to near 60 mph with higher gusts. Additional strengthening is expected during the next day or so, and Barbara is forecast to become a hurricane later tonight.
Tropical-storm-force winds extend outward up to 70 miles from the center.

 

Tropical Cyclone 03E (Cosme)

COSME POISED TO STRENGTHEN ON MONDAY

According to the NHC advisory number 3
The depression is moving toward the northwest near 8 mph (13 km/h) and this general motion is expected to continue through tonight, followed by a decrease in forward speed and a turn toward the northeast on Monday. A turn back to the northwest with an increase in forward speed is then expected Monday night and Tuesday.
Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Steady strengthening is forecast during the next 48 hours, and the system is expected to become a tropical storm later today.

South of the Gulf of Tehuantepec

>>> An area of low pressure is forecast to develop late next week south of southern Mexico. Environmental conditions appear conducive for some gradual development of this system, and a tropical depression could form late next week or next weekend.

* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 7 days…medium…50 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:  There are no Tropical Cyclones

Western Pacific

>>> There’s an area of disturbed weather being referred to as Invest 92W, which is located approximately 394 NM south-southeast of Hong Kong

Animated multi-spectral satellite imagery (msi) depicts a broad, partially exposed low-level circulation with flaring convection along the western periphery of the system. Another image reveals 10 knot winds wrapping in from the north and east.

Environmental analysis reveals a moderately favorable environment, with moderate equatorward outflow aloft, warm sea surface temperatures and low to moderate vertical wind shear (vws) of
15-20 knots from the northeast.

Global deterministic and ensemble models are currently in good agreement on a westward track further into the South China Sea over the next 48 hours with steady intensification as the system continues to consolidate.

Maximum sustained surface winds are estimated at 10 to 15 knots.

The potential for the development of a significant tropical cyclone within the next 24 hours remains low.