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Floods are caused by many factors or a combination of any of these generally prolonged heavy rainfall (locally concentrated or throughout a catchment area), highly accelerated snowmelt, severe winds over water, unusual high tides, tsunamis, or failure of dams, levees, retention ponds, or other structures that retained the water.
These tactics guarantee uniform rates of penetration and robust plant coverage. [4] One serious environmental problem endangering sustainable development is gully erosion. Gullying prevention and control methods are dispersed and lacking, and they have low success and efficacy rates. [8]
Tornado safety tips Second only to hurricanes, tornadoes are among nature’s most destructive forces, with wind speeds ranging from 65 mph to over 200 mph, according to the NWS .
There are several types of urban flooding, each with a different cause. City planners distinguish pluvial flooding (flooding caused by heavy rain), fluvial flooding (caused by a nearby river overflowing its banks), or coastal flooding (often caused by storm surges). Urban flooding is a hazard to both the population and infrastructure.
Landscaping to prevent water from damaging your home or flooding your basement is a smart strategy. Learn seven easy steps that everyone, from gardening newbies to seasoned pros, can try.
If severe flooding is a risk in your area, use these tips to plan ahead. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ...
Flash flood emergency FFS – A flash flood emergency is a high-end usage of the flash flood warning. The flash flood emergency term is used when widespread flooding is occurring, and either, multiple water rescues have been reported in the past few hours, or if highly populated regions are undergoing significant flash flooding likely to cause ...
A flood barrier, surge barrier or storm surge barrier is a specific type of floodgate, designed to prevent a storm surge or spring tide from flooding the protected area behind the barrier. A surge barrier is almost always part of a larger flood protection system consisting of floodwalls , levees (also known as dikes), and other constructions ...