Heavy Rain Alerts Expand Across Kanto and Koshin Regions

The Japan Meteorological Agency has issued a Level 5 emergency warning for sediment disasters in the northern Izu Islands, urging maximum caution through early Monday. Heavy rain warnings may expand across the Kanto and Koshin regions. Record rainfall has hit the area, with 581.5 mm falling in Oshima, Tokyo, and 341.0 mm in Tateyama, Chiba Prefecture, both setting new records. The unstable atmospheric conditions are expected to persist through Thursday, with 24-hour rainfall forecasts reaching 100 mm in the Koshin region. The agency warns that even light rain could trigger landslides in areas where the ground has already loosened from previous downpours. Residents are advised to remain vigilant against flooding, rising rivers, and sediment disasters.