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was carved out of Sandstone by flash floods]]

Flash flooding occurs when the ground becomes Saturated with Water having fallen too quickly to have been Absorbed . The Runoff collects in low-lying areas and rapidly flows downhill. Flash floods most often occur in normally dry areas that have recently received Precipitation , but may be seen anywhere downstream from the source of the precipitation (even dozens of Mile s from the source).

The United States ' National Weather Service gives the advice "Turn Around, Don't Drown" in reference to flash floods; that is, it recommends that people get out of the area of a flash flood, rather than trying to cross it. Most people tend to underestimate the dangers of flash floods.



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FURTHER READING

  • Karl-Erich Schmittner and Pierre Giresse (1996), "Modelling and application of the geomorphic and environmental controls on flash flood flow", ''Geomorphology'' 16(4):337–347.



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