Key Facts
• A weather front extends from the Tohoku region to the Sanriku coast.
• The front is expected to move southward over the Kanto-Koshin region by July 11.
• Warm, moist air and rising daytime temperatures are causing atmospheric instability.
• Heavy rain with thunderstorms is forecasted for July 10 across Tohoku, western Japan, and the Nansei Islands.
• Predicted 24-hour rainfall totals (July 10, 6 AM to July 11, 6 AM):
– Kanto-Koshin: 120 mm
– Southern Kyushu: 150 mm
– Amami region: 120 mm
– Okinawa: 100 mm
• Risks include flooding in low-lying areas, river overflows, landslides, lightning, and tornadoes.
• Hail may occur, potentially affecting crops and agricultural facilities.
• Residents are advised to monitor weather updates and take safety precautions.
• Signs of approaching cumulonimbus clouds should prompt immediate sheltering indoors.
Summary
A weather front moving southward from Tohoku to the Kanto-Koshin region is causing significant atmospheric instability, leading to heavy rain and thunderstorms on July 10. Rainfall totals are expected to reach up to 150 mm in southern Kyushu and 120 mm in Kanto-Koshin and Amami regions. Authorities warn of potential flooding, river overflows, landslides, and severe weather phenomena like lightning and tornadoes. Residents are urged to stay updated on weather alerts, secure safety indoors during severe conditions, and protect agricultural assets from hail damage.
