Heavy rain warning possible across western and eastern Japan through Thursday

The Japan Meteorological Agency warns of potential heavy rain requiring emergency warnings from western to eastern Japan through Thursday, September 10, due to a stagnant autumn rain front. The agency issued this forecast on Monday, September 7. The Pacific high-pressure system is expected to extend south of Japan, keeping the autumn rain front stalled over the region. Heavy rain may occur due to the front and warm, moist air, with the possibility of warning-level downpours depending on front activity and inflow from Tropical Depression 24. The weekly forecast covers September 8-14. The front is expected to remain stalled even after the high-pressure system weakens, sustaining the risk of significant rainfall across the affected areas.