Remnants of Co-May (11W) – Tropical Cyclone Advisory #18 (FINAL): 0000 UTC 1 August 2025

…After a long and strange journey Co-May is degenerating into a broad area of low pressure… …This is the last advisory…

Current storm information:

• Position: 31.7°N 117.6°E

• Movement: Nearly stationary

• Intensity: 25 knots (45 km/h)

• Central pressure: 996 hPa

Trend:

• N/A.

Discussion:

After stubbornly clinging to life for quite some time after landfall, Co-May’s circulation has become substantially more diffuse during the past few hours. Although there are a few small puffs of convection present, mainly to the south of the center, most of the circulation is fully embedded in dry air. Given that the circulation is rapidly losing definition, it does not seem likely that Co-May will remain a tropical cyclone much longer, and so this will be the last advisory.

The remnants of Co-May will likely begin drifting northeastward later today. Although they may move over the Yellow Sea this weekend, it is unlikely they will redevelop into a tropical cyclone.

This is the last advisory on Co-May. Again.

Forecast positions and maximum winds

• 00 hrs: 31.7°N 117.6°E – 25 kts remnants

• 12 hrs: Dissipated