Guerrilla rain

Back to the Future II-style weather forecasts developed by Japanese universities

New system can provide highly accurate 30-minute rain forecasts that update in real-time.

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Intense rainfall suddenly floods part of Tokyo’s Asagaya neighborhood【Video】

Japan’s “guerrilla rain” launches a summer squall sneak attack.

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Crazy-huge hail chunks pound Tokyo as “guerrilla rain” hits the capital【Videos, photos】

Summer may be the rainy season, but hail like this is freaky even for Japan.

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