Heavy rain prediction method, heavy rain prediction device, system to which the heavy rain prediction device is applied, and program

摘要

According to one embodiment, a weather prediction apparatus includes a storage (9) configured to store weather data of a rain cloud observed by a weather radar (8); and a processor (10) configured to predict a torrential rain. The processor (10) is configured to detect a core of the rain cloud, based on the weather data; to acquire position information of the core, based on a detection result of the core; to determine a movement direction of the core, based on the position information; and to calculate information for predicting, as an area of occurrence of the torrential rain, an area on a ground, the area on the ground corresponding to the movement direction of the core.