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Flood and National Weather Service

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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, or tropical storm or melt water from ice or snow flowing over ice sheets or snowfields. Flash floods can also 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 less than six hours. The temporary availability of water is often utilized by plants with rapid germination and short growth cycle, and by specially adapted animal life.

Causes
Flash flooding occurs when a barrier holding back water fails or when …show more content…

Preliminary indications indicate that the floods caused a direct loss of about Rs. 450 crores (€80 million or US$100 million). The financial impact of the floods were manifested in a variety of ways:

* The banking transactions across the counters were adversely affected and many branches and commercial establishments were unable to function from late evening of 26 July 2005. The state government declared the 27th (and later, 28th) of July as a public holiday. ATM networks of several banks, which included the State Bank of India, the nation's largest national bank; ICICI Bank, HDFC Bank, and several foreign banks like Citibank and HSBC, stopped functioning from the afternoon of 26 July 2005 at all the centers of Mumbai. ATM transactions could not be carried out in several parts of India on 26 July 2005 or 27 July 2005 due to failure of the connectivity with their central systems located in Mumbai.

* The Bombay Stock Exchange and the National Stock Exchange of India, the premier stock exchanges of India could function only partially. As most of the trading are eTrading, trading terminals of the brokerage houses across the country remained largely inoperative. Ironically, in partial trading, the Sensex, India's most tracked equity index closed at an all time high of 7605.03 on 27 July 2005. The Exchanges, however, remained closed for the following day.

Effect on Mumbai's links to the rest of

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