Satellite images and tracking maps of Tropical Depression 25W 2022, October 18 - 22. Max wind speed 55km/h.
25W (Philippine name Obet) is located 432 km east-southeast of Hong Kong, and has moved westward at 19 km/h (10 knots) over the past 6 hours.
Infrared imagery shows a small ball of flaring convection obscuring a weak low-level circulation (LLC). Rain bands have mostly dispersed; however, a cold air stratocumulus field, associated with the northeast surge in the Taiwan Strait into the South China Sea, is continuously intruding into the LLC.
The current position is placed with medium confidence by tracing the initially-partly exposed LLC before it became obscured. The initial intensity is extrapolated from SHIP observations as close as 111 km to the west, likely in the gradient flow.
25W is in an unfavorable environment mostly due to the cold dry air intrusion at the low levels and the absence of ventilation aloft. It is expected to continue to weaken and dissipate in 12 hours.
This is the final warning on this system by JTWC. The system will be closely monitored for signs of regeneration.
Maximum significant wave height is 2.7 meters (9 feet).
Information provided by the Joint Typhoon Warning Center (JTWC).