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97s

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By PDC’s Senior Weather
Specialist Glenn James

The Pacific Disaster Center’s (PDC Global) Sunday, November 16, 2025, Tropical Cyclone Activity Report…for the Pacific Ocean, the Indian Ocean, and adjacent Seas

Current Tropical Cyclones:

There are no Tropical Cyclones

Northeast Pacific Ocean: There are no Tropical Cyclones

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

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:

South Indian Ocean

>>> There’s an area of disturbed weather being referred to as Invest 97S, which is located approximately 219 NM west-northwest of Darwin, Australia

Multi-spectral satellite imagery shows a consolidating llcc with convective banding starting to wrap along the northern semicircle. A 161334z ascat pass depicts a very small circulation, with a swath of 25-30 kt winds over the western periphery of 97S.

Environmental analysis reveals a favorable environment for development with fair poleward outflow aloft, moderate vertical wind shear of 15-20 kts, and warm sea surface temperatures (sst) of 29-30 c.

Global models depict the slow consolidation of the system and agree upon a general eastward track. ECMWF is more aggressive and shows 97S consolidating faster than the other deterministic models, however, previous runs had NAVGEM showing a faster consolidation of the system but it since has backed off.
Maximum sustained surface winds are estimated at 13 to 18
knots.The potential for the development of a significant tropical cyclone within the next 24 hours is low.