Question

What conditions are needed for flood to form?

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Answer 1

A flood occurs when water overflows or inundates land that's normally dry.

This can happen in a multitude of ways. Most common is when rivers or streams overflow their banks. Excessive rain, a ruptured dam or levee, rapid ice melting in the mountains,

Most floods take hours or even days to develop, giving residents ample time to prepare or evacuate

These flash floods can be extremely dangerous, instantly turning a babbling brook into a thundering wall of water and sweeping everything in its path downstream.

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Answer 2

hey mate ur ans
FLOOD - IT is actually a geographic term used to describe mainly the overflowing of Any water body or water collection in a place DUE TO EXCESSIVE RAINFALL

Now what are conditions necessary for flood to occur at a place

1) the palce should not be close or it should not be surrounded mainly by hill

2) the rainfall at that place should be medium because due to excessive rainfall the water may happen to collect and results in flood

3) Flooding occurs most commonly from heavy rainfall when natural watercourses do not have the capacity to carry excess water. However, floods are not always caused by heavy rainfall. In coastal areas, water inundation can be caused by a storm surge as a result of a tropical cyclone, a tsunami or a high tide coinciding with higher than normal river levels. If a dam fails, triggered for example by an earthquake, the downstream area will flood, even in dry weather conditions.

Other factors which can contribute to flooding include:

volume,
spatial distribution,
intensity and duration of rainfall over a catchment capacity of the watercourse or stream network to carry run off catchment and weather conditions before rainfall ground cover topography tidal influences.

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