Why Does It Happen ?
A flash flood, sudden localized flooding, usually happens on a sloping
ground along a small creek over a relatively short time. Torrential rain, as
well as melting ice and snow, high up on a hill or in a mountainous area, charges
down and can change a 15 to 30-cm deep creek into a 1.5-m deep raging river in
one ot two hours. The roaring water will reach well above a creek’s banks. A
flash flood recedes as rapidly as it occurs. However, the damage to the
surrounding areas can be devastating because the extremely fast-moving water is
very powerful. It sweeps away people, animals, and objects such as houses and
vehicles in second.
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