Jisho

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Noun
1. flash flood
Wikipedia definition
2. Flash floodA flash flood is a rapid flooding of geomorphic low-lying areas—washes, rivers, dry lakes and basins. It may be caused by heavy rain associated with a storm, hurricane, or tropical storm or meltwater from ice or snow flowing over ice sheets or snowfields. Flash floods may occur after the collapse of a natural ice or debris dam, or a human structure such as a man-made dam, as occurred before the Johnstown Flood of 1889.
Read “Flash flood” on English Wikipedia
Read “鉄砲水” on Japanese Wikipedia
Read “Flash flood” on DBpedia

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