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
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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
Easy navigation and flood control encouraged trade along the river, which boosted the economy and led to an increase in jobs for traders, deckhands, etc. (US History TVA). In addition to providing increased trade opportunities, large amounts of money that would have been spent on the flood damage that were saved by the construction of these dams. A few years into the program, stations were created in the area to monitor flooding. Reports from these stations, in addition to computer calculations, show that the total cost of the flood damage up until 2007 would have been $5.8 billion (TVA River Neighbors). The flooding would have destroyed not only people’s homes, but also their businesses and livelihoods., which would have led to further unemployment.
For instance, around 500 people were violently drowned to death by the rapid waters rising into homes and communities. Many people lost friends, and loved ones to this flood. Many tragically lost their homes and jobs too. Homes were destroyed, jobs were taken down, and people became devastated and depressed. A lot of people were able to go live will relatives, or friends, but a majority of them had nowhere to go.
I was talking with a co-worker this evening about my assignments for the week in my online classes. When I told her we were studying the intermontane west; she told me about a place in eastern Washington State called the scablands. I had never heard the term before, so naturally I was intrigued. Luckily for me the topic was covered in our book when discussing the Great Missoula Flood. The Great Missoula Flood was caused over a period of time during the last ice age when a massive dam buckled under the weight of the water that melted from the polar ice caps (Hardwick, Shelley & Holtgrieve.) The scablands are only a portion of the total area that is encompassed in the area affected by the Great Missoula Flood. According to HugeFloods.com “The
Texas has received record amounts of rainfall, causing serious flooding all throughout the state of Texas. According to an article published on June 3rd, Houston is looking at an economic impact of roughly 550 million dollars. This interests me greatly because I live in Texas, and seeing prices going up, especially on local produces, is something that will directly impact me. Because of the record rain falls, local farmers are especially in a world of hurt as their crops were destroyed by the rain. For local farmers markets, and local grocery stores that support local farmers, I think you'll start to see a raise in prices as the farmers will be having to make up their margins somewhere. Also, I think you'll start to see Texas lean on other
Long ago at the time of Bernama lived a very poor family. In the family was the mom named Kate, the dad who was named Jason, the oldest girl Katrina and a younger sister named Gabby. There was a huge drought and none of the crops were growing. Everyone in the family was starving so it was up to Katrina to save her whole family.
The hydrographic basin area affected is around 435 miles in width and 723 miles in length which totals close to 320,000 square miles. The flood area was 30,000 square miles. In St. Louis, the floodwall built out of interlocking concrete blocks in the 1960’s, kept the flood out. If the flood had been 2 feet higher, the whole downtown area of St. Louis would have been under water. It is estimated that most of the 700 privately built levees failed or were destroyed on the Missouri River. River levels were almost 20 feet over flood stage. The Missouri River was flooded for nearly 100 days. (Wikipedia)
On August 12th, 2016, the southern part of Louisiana was flooded do to massive rain fall. I feel this is a big topic that should be talked about because of the eye opening things that have happened such as damage and the record breaking water levels recorded. This stuff really should be talked about but isn’t.
This disaster changed the country because it damaged 203,000 houses, but only 12,700 were destroyed. The FEMA (Federal Emergency Management Agency) has paid a total of 378 million dollars to the 738,000 people who have requested financial help. When the storm was
The current problem which the city of New Orleans is experiencing is flooding which is caused by heavy storms as well as hurricane Katrina. For instance, August this year, Louisiana governor John Bel Edwards acknowledged a state of emergency since city’s failure of water pumping system exposes the residents of the city to the greater menace of tainted –weather flooding. This was less than a week where a flash flood had completely overwhelmed the city's water pumping system, and the city officials were struggling to make some repairs to the fire-damaged equipment which are at a power station plant and also shore up its drainage system. Therefore several residents were inundated by this incident. However, hundreds of homes as well as businesses
The floods affected 75% of the state from Rockhampton to Brisbane in both inland and coastal areas. 500 000 km2 were affected – this is larger than the area of France and Germany combined.
As described above, the flash flood was caused by intense rainfall over several days during June 2012. The torrential rains led to record-breaking discharges in the Knife and St. Louis Rivers. The discharges from the Knife River and St. Louis River peaked at 25,000 ft3/s and 45,300 ft3/s respectively (Czuba et al., 2012). The Mississippi River and other nearby streams and rivers also experienced unusually high flow volumes. As rain rushed into and through these systems, flood mitigation and
Flood insurance covers a percentage of the damages cost depending on the following factors. They look at the coastal policies of the client. For example, living along a coast gives the insurance holder a high premium.
The flooding and raining in Texas is due to a storm system that has accumulated a lot of evaporation through the central and northern Rocky Mountains because of the water cycles track. It is also precipitating immensely over the central and northern plains. This huge amount of rain is giving Iowa, eastern Nebraska, and South Dakota a high flooding rate. The 2 feet of runoff from the rain will have a great affect on the flooding situation. Because of the excess groundwater the water levels are rising which also contributes to the flooding also. The erosion from the flooding and rain is going to damage people's backyards, deposit anywhere, and cause many problems.
Even now, with all of the flood channels and reservoirs that have been built, there are places that are still susceptible to flooding. I have experienced two flash floods, both times in the summer when the desert can experience two inches of rainfall in less than 30 minutes. If you don't know what to expect and you don't know where you're at, you can find yourself in trouble quickly. Anyway, this exhibit gives you an idea of what it is like to be caught in a flash flood, away from the city, without being in danger.
At least 9 tornadoes, accompanied by flash floods and extreme blizzard conditions claimed more than 40 lives, and destroyed thousands of homes and properties in a number of US states from south of the country to the Midwest, knocking off power, closing roadways and putting lives in complete disarray.