A Flash flood is rapid flooding of geomorphic low lying areas, washes rivers, dry lakes and basins flash floods occur due to slow moving thunderstorms, heavy rains, glacial lake, out bursts or due to failure of artificial dams. Flash floods occur in fury and leads to destruction of life and property at a very considerable rate. The loss of precious lives carried off by the floods is a big score with rising number day by day. Markets offices, hospitals, educational institutions, roads etc are sounding feeling of fear, mental uneasiness grief, discomfort and anxiety are so deep rooted caused by disasterouss flash floods. Flash floods can impact hundreds of kilometers. These floods mostly occur in steep sloppy valleys in hilly and mountains areas, but can also occur in small waterways in urban environments.