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- Dictionaryflash flood
noun
- 1. a sudden local flood, typically due to heavy rain.
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Rapid flooding of low-lying areas
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- A flash flood is a rapid flooding of low-lying areas: washes, rivers, dry lakes and depressions. It may be caused by heavy rain associated with a severe thunderstorm, hurricane, or tropical storm, or by meltwater from ice and snow.
en.wikipedia.org/wiki/Flash_flood
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A flash flood is a rapid flooding of low-lying areas: washes, rivers, dry lakes and depressions. It may be caused by heavy rain associated with a severe thunderstorm, hurricane, or tropical storm, or by meltwater from ice and snow.
- What Are Flash Floods?
- What Causes Flash Floods?
- Case Study: Boscastle Floods in 2004
Flash flooding happens when rain falls so fast that the underlying ground cannot cope, or drain it away fast enough. Roads can become like rivers and if there is a lot of water, it can flood buildings and carry cars away. So, if the rain is falling too fast for the ground or drains to cope, there is a risk of flash flooding.
Most rivers flow fairly gently as they slope slowly towards the sea. Therefore, when a river floods it does so quite slowly as it takes time for the rain to percolate through the ground and into the rivers and out to sea, allowing time for some warning. With flash flooding, there is often very little time between the rain falling and flash flooding...
The village of Boscastle in Cornwall experienced flash flooding on 16 August 2004 when an exceptional amount of rain fell over eight hours. Heavy thundery showers developed over the moors to the southwest of Boscastle. A small, steep river flows through Boscastle and the thundery showers came one after another in a short space of time, over the sam...
Oct 5, 2021 · What is flash flooding? Flash floods usually happen during intense rainfall - when the amount of water is too much for drains and sewers to deal with. It can occur very quickly and without...
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Nov 11, 2013 · Flash flooding can happen anywhere, in towns, cities and the countryside. It can also happen a long way from rivers, lakes and the sea. It can take different forms.
Oct 5, 2021 · What is flash flooding? Flash floods usually happen during intense rainfall - when the amount of water is too much for drains and sewers to deal with. It can occur very quickly and without...
Aug 2, 2022 · Flash flooding is a specific type of flooding that occurs in a short time frame after a precipitation event – generally less than six hours. It often is caused by...
A flash flood is a rapid rise of water along a stream or low-lying urban area. Flash flooding occurs within six hours of a significant rain event and is usually caused by intense storms that produce heavy rainfall in a short amount of time.
