At 3:19 a.m. on the 2nd, the Japan Meteorological Agency issued a meteorological and disaster prevention bulletin warning of the occurrence of a "linear precipitation band" in the Aso region of Kumamoto Prefecture. A "linear precipitation belt" is a phenomenon in which a series of developed cumulonimbus clouds bring about heavy rain.The Japan Meteorological Agency says that the risk of life-threatening landslides and floods is rapidly increasing, and is calling for strict vigilance and ensuring safety.