Tropical Cyclone Jangmi tracking westward across Philippine Sea toward Okinawa; 72-hour threat window for damaging winds, storm surge, and torrential rainfall.
🌀 OPEN LIVE 3D WEATHER ALERTSTropical Cyclone Jangmi is tracking westward across the Philippine Sea toward Japan's southern regions as of May 27, 2026, positioned at 15.4°N, 133.7°E. The system poses a direct threat to Okinawa Prefecture and the Ryukyu Islands chain, with potential for damaging winds, torrential rainfall, and coastal storm surge within 72 hours. Japan Meteorological Agency (JMA) monitoring indicates organized convection and strengthening atmospheric structure typical of pre-major typhoon development.
Tropical cyclones form over warm ocean waters when sea surface temperature exceeds 26.5°C, atmospheric moisture is abundant, and wind shear is minimal. The Philippine Sea in late May provides ideal conditions: water temperatures reach 28–29°C, the monsoon trough is established, and upper-level outflow channels redirect diverging air away from the developing vortex. As Jangmi moves westward, the Coriolis effect strengthens its rotation, intensifying organized convection around the eye.
Pandita Data integrates real-time satellite imagery (NOAA GOES, Himawari-8), microwave precipitation data, and JMA surface analysis to render 3D wind fields, cloud-top temperatures, and storm-relative moisture convergence. The simulation layer overlays sea surface temperature anomalies and upper-level outflow patterns, allowing users to visualize the exact mechanism driving intensification as Jangmi approaches Japan.
Primary Hazards: Storm surge (1–2 m above normal tide), destructive winds (60+ kt gusts in inner core), flash flooding from 150–300 mm rainfall in 24 hours, and dangerous seas. Timeline: Outer bands reach Okinawa within 48–72 hours; peak intensity expected before landfall.
Watch the 3D simulation of Jangmi's track and intensification structure on Pandita Data's tropical cyclone module to understand wind shear evolution and predict landfall timing.