Japan's Kanto region, including major urban areas like Tokyo, is forecasted to face heavy rainfall potentially reaching alarm levels on the 18th. The unexpected weather system poses a risk of flash floods and landslides, necessitating prompt preventive and preparedness measures. Residents have been urged to stay informed and to follow any evacuation advisories or orders issued by local authorities.

In Japan, accurate and timely weather forecasting is highly valued as the country regularly faces natural disasters such as typhoons, earthquakes, and rainfall-induced landslides. Communities usually react promptly to forecasts and alerts, putting in place measures to minimize damage and protect people. Public safety is a significant social value, and the law necessitates municipalities to establish evacuation centers and plans.

In the US and EU, similar weather alerts are issued, prompting readiness activities. However, due to Japan's high population density and unique topography, the impact of such extreme weather conditions can be more pronounced. Moreover, the preparedness level in Japan, including early warning systems and resident responsiveness, are often held as benchmarks.