A line of heavy rainfall, known as a 'rain belt', has recently moved over Nagasaki Prefecture in Japan. Local authorities are urging residents to take all necessary precautions to ensure their safety. This is particularly relevant in the mountainous areas, where sudden heavy downpours can lead to floods and landslides. There is no specific timeline provided, but the concept of rain belt usually implies an ongoing weather event.

In Japan, the arrival of a rain belt often leads to warnings about potential floods and landslides. People are encouraged to stay safe by keeping abreast of the latest weather updates, preparing evacuation supplies in case of emergencies, and cooperating fully with any orders or suggestions from the local authorities.

In the US or EU, similar weather patterns would also lead to warnings about flash floods, especially in areas susceptible to such events. Residents would be encouraged to stay informed about the latest weather updates and to take necessary safety precautions.