Key Facts
• Typhoon No. 15 made landfall in Sukumo City, Kochi Prefecture, early on September 5.
• It re-landed in northern Wakayama Prefecture around 9:00 AM the same day.
• The typhoon is moving eastward along the Pacific coast at 50 km/h.
• Heavy rain is expected to peak in the Tokai and Kanto regions from afternoon to evening.
• There is a risk of linear rainbands forming, increasing the danger of disasters.
• Linear rainbands may cause prolonged heavy rainfall in localized areas.
• Affected areas include Kanto-Koshin, Izu Islands, and Tokai, with specific peak times:
– Kanto-Koshin: Until early evening on September 5.
– Izu Islands: From early afternoon to early evening on September 5.
– Tokai: Until late afternoon on September 5.
• Potential hazards include landslides, flooding in low-lying areas, and river overflows.
• Strong winds, lightning, and tornadoes are also possible; safety precautions are advised.
• Linear rainbands are organized clusters of cumulonimbus clouds causing intense rainfall over 50–300 km areas.
Summary
Typhoon No. 15, which made landfall in Kochi and Wakayama Prefectures on September 5, is accelerating eastward along the Pacific coast. The Tokai and Kanto regions are expected to experience heavy rain peaking from afternoon to evening, with a risk of linear rainbands forming. These rainbands could lead to prolonged, localized downpours, increasing the likelihood of landslides, flooding, and river overflows. Affected areas include Kanto-Koshin, the Izu Islands, and Tokai, with specific peak times varying by region. Residents are urged to stay updated on weather and transportation information, take precautions against strong winds and lightning, and seek shelter if severe weather approaches. Linear rainbands, characterized by organized cumulonimbus clouds, can cause intense rainfall over extended areas, posing significant risks.
