A flood that rises and falls quite rapidly with little or no advance warning, usually as the result of intense rainfall over a relatively small area. Flash floods can be caused by situations such as a sudden excessive rainfall, the failure of a dam, or the thaw of an ice jam.
FLASH FLOOD
Meaning of FLASH FLOOD in English
Weather and meteorology English vocabulary. Английский словарь погоды и метеорологии . 2012