A 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, 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. Flash floods are distinguished from a regular flood by a timescale of less than six hours. The temporary availability of water is often utilized by foliage with rapid germination and short growth cycle, and by specially adapted animal life.
Read more about Flash Flood: Causes, Hazards, Significant Flash Floods
Famous quotes containing the words flash and/or flood:
“Here lies a man who was killed by lightning;
He died when his prospects seemed to be brightening.
He might have cut a flash in this world of trouble,
But the flash cut him, and he lies in the stubble.”
—Anonymous. From Booth, Epigrams Ancient and Modern (1863)
“Men hold themselves cheap and vile; and yet a man is a fagot of thunderbolts. All the elements pour through his system: he is the flood of the flood, and fire of the fire; he feels the antipodes and the pole, as drops of his blood: they are the extension of his personality.”
—Ralph Waldo Emerson (1803–1882)