Overview

• Typhoon 8 regained strength near Okinawa Main Island on July 28 and is moving slowly into the East China Sea with a central pressure of 990 hPa and maximum winds of 20 m/s.
• Okinawa Prefecture has invoked the Disaster Relief Act for Minami-Daito and Kita-Daito villages after 72-hour rainfall topped 500 mm, marking a regional record.
• The JMA has warned of heavy rain and unstable atmospheric conditions in Okinawa and Amami through July 29, with localized 24-hour rainfall forecasts reaching 150 mm.
• The Ministry of the Environment and the JMA have urged proper use of air conditioning and frequent hydration to ward off heatstroke during ongoing high temperatures.
• The back-to-back heatwave and Typhoon 8 rainfall underscore mounting climate extremes and have tested Japan’s public health and emergency response systems.