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It is referred to as the Oct. The rain actually began the previous evening and continued into the dark, deadly morning hours. That was the official reported rainfall, but unofficial amounts within the county approached 20 inches. It mercilessly rushed through the Brookside housing addition, which had low and high areas.
The Rev. Kenneth Wade, his wife and two sons lived up high and their home became one of the "rescue houses. Floods in particular more frequent or smaller floods can also bring many benefits, such as recharging ground water , making soil more fertile and increasing nutrients in some soils.
Flood waters provide much needed water resources in arid and semi-arid regions where precipitation can be very unevenly distributed throughout the year and kills pests in the farming land. Freshwater floods particularly play an important role in maintaining ecosystems in river corridors and are a key factor in maintaining floodplain biodiversity.
For some fish species, an inundated floodplain may form a highly suitable location for spawning with few predators and enhanced levels of nutrients or food. Bird populations may also profit from the boost in food production caused by flooding.
Periodic flooding was essential to the well-being of ancient communities along the Tigris-Euphrates Rivers, the Nile River , the Indus River , the Ganges and the Yellow River among others. The viability of hydropower , a renewable source of energy, is also higher in flood prone regions. In the United States, the National Weather Service gives out the advice "Turn Around, Don't Drown" for floods; that is, it recommends that people get out of the area of a flood, rather than trying to cross it.
At the most basic level, the best defense against floods is to seek higher ground for high-value uses while balancing the foreseeable risks with the benefits of occupying flood hazard zones.
Structures, such as bridges, that must unavoidably be in flood hazard areas should be designed to withstand flooding. Areas most at risk for flooding could be put to valuable uses that could be abandoned temporarily as people retreat to safer areas when a flood is imminent. Each topic presents distinct yet related questions with varying scope and scale in time, space, and the people involved.
Attempts to understand and manage the mechanisms at work in floodplains have been made for at least six millennia. In the United States, the Association of State Floodplain Managers works to promote education, policies, and activities that mitigate current and future losses, costs, and human suffering caused by flooding and to protect the natural and beneficial functions of floodplains — all without causing adverse impacts.
In many countries around the world, waterways prone to floods are often carefully managed. Defenses such as detention basins , levees ,  bunds , reservoirs , and weirs are used to prevent waterways from overflowing their banks. When these defenses fail, emergency measures such as sandbags or portable inflatable tubes are often used to try to stem flooding. Coastal flooding has been addressed in portions of Europe and the Americas with coastal defenses , such as sea walls , beach nourishment , and barrier islands.
In the riparian zone near rivers and streams, erosion control measures can be taken to try to slow down or reverse the natural forces that cause many waterways to meander over long periods of time.
Flood controls, such as dams, can be built and maintained over time to try to reduce the occurrence and severity of floods as well. In the United States, the U. Army Corps of Engineers maintains a network of such flood control dams.
In areas prone to urban flooding, one solution is the repair and expansion of man-made sewer systems and stormwater infrastructure. Another strategy is to reduce impervious surfaces in streets, parking lots and buildings through natural drainage channels, porous paving , and wetlands collectively known as green infrastructure or sustainable urban drainage systems SUDS.
Areas identified as flood-prone can be converted into parks and playgrounds that can tolerate occasional flooding. Ordinances can be adopted to require developers to retain stormwater on site and require buildings to be elevated, protected by floodwalls and levees , or designed to withstand temporary inundation.
Property owners can also invest in solutions themselves, such as re-landscaping their property to take the flow of water away from their building and installing rain barrels , sump pumps , and check valves. A series of annual maximum flow rates in a stream reach can be analyzed statistically to estimate the year flood and floods of other recurrence intervals there.
Similar estimates from many sites in a hydrologically similar region can be related to measurable characteristics of each drainage basin to allow indirect estimation of flood recurrence intervals for stream reaches without sufficient data for direct analysis. Physical process models of channel reaches are generally well understood and will calculate the depth and area of inundation for given channel conditions and a specified flow rate, such as for use in floodplain mapping and flood insurance.
Conversely, given the observed inundation area of a recent flood and the channel conditions, a model can calculate the flow rate. Applied to various potential channel configurations and flow rates, a reach model can contribute to selecting an optimum design for a modified channel.
Various reach models are available as of , either 1D models flood levels measured in the channel or 2D models variable flood depths measured across the extent of a floodplain. Physical process models of complete drainage basins are even more complex. Although many processes are well understood at a point or for a small area, others are poorly understood at all scales, and process interactions under normal or extreme climatic conditions may be unknown.
Basin models typically combine land-surface process components to estimate how much rainfall or snowmelt reaches a channel with a series of reach models. For example, a basin model can calculate the runoff hydrograph that might result from a year storm, although the recurrence interval of a storm is rarely equal to that of the associated flood.
Basin models are commonly used in flood forecasting and warning, as well as in analysis of the effects of land use change and climate change. Anticipating floods before they occur allows for precautions to be taken and people to be warned  so that they can be prepared in advance for flooding conditions.
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A tree trunk had torn through the rear wall, opening it to the cascading mud. In the frenzy, the couple became separated. He told me what Janie had done. Twenty years ago today, massive rainstorms and floods created one of the worst natural disasters in Orange County history. Five people were killed and 17 injured in the Silverado Canyon mudslide, the worst of many throughout Southern California. For a solid month, an average of 7 inches of rain had fallen each day, swelling creeks and flooding streets throughout the region.
Full Cast and Crew. Release Dates. Official Sites. Company Credits. Technical Specs. Plot Summary. Plot Keywords. Parents Guide. External Sites. User Reviews. User Ratings. External Reviews. Metacritic Reviews. Photo Gallery. Trailers and Videos. Crazy Credits. Alternate Versions.May 20, · breaking news; Historic US floods turns deadly as man, 69, dies in hospital. HISTORIC flooding along the Mississippi River has turned deadly after a year-old man pulled from the floodwater died.