Meteorology and Weather
Environmental Issues
Rain and Flooding
What causes a flash flood?
454647
Answer
Wiki User
06/15/2010
Flash Flood
A flash flood is caused by excess water, usually from a storm. This usually happens downstream from the storm as heavy rains produce more water than the area can handle with nothing to impede its buildup or soak it into the ground.As a weatherman in Oklahoma recently put it: "It is when a large rain and storm system hovers an area and does 'not leave' or 'move on' (as generally seen with systems) but instead stays, dumping supernatural amounts of water in a "flash," overwhelming even the more extraordinary and multi-competant drainage and levy systems."
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