Tropical Depression 28W – Tropical Cyclone Advisory #1: 1500 UTC 4 October 2025

Tropical Depression 28W forms near Iwo Jima. Forecast to become a significant typhoon by midweek.

Author

Will Weaver
October 04, 2025

…Tropical Depression 28W forms near Iwo Jima… …Forecast to become a significant typhoon by midweek…

Himawari-9 infrared satellite image (Weathernerds)

Current storm information:

  • Position: 24.8°N 143.3°E

  • Movement: Nearly stationary

  • Intensity: 30 knots (55 km/h)

  • Central pressure: 1003 hPa

Trend:

  • Some strengthening is forecast during the next 24 hours and the depression will likely become a tropical storm on Sunday.

Watches and warnings:

  • There are no coastal watches or warnings in effect.

Hazards affecting land:

  • Interests in the Ryukyu Islands, including Okinawa, should monitor the progress of this system.

The next advisory will be posted after 0000 UTC 5 October 2025.

Forecast positions and maximum winds

  • 000 hrs: 24.8°N 143.3°E – 30 kts

  • 012 hrs: 24.9°N 142.5°E – 40 kts

  • 024 hrs: 25.0°N 141.8°E – 50 kts

  • 048 hrs: 25.1°N 138.7°E – 65 kts

  • 072 hrs: 25.7°N 133.8°E – 95 kts

  • 096 hrs: 27.5°N 130.0°E – 110 kts

  • 120 hrs: 29.5°N 129.4°E – 105 kts

JTWC forecast map