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How is Flash flooding different from just flooding?

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How is Flash flooding different from just flooding?

Flash flooding is a sudden deluge after heavy rainfall. The flooding begins within six hours and often within three hours of heavy rain. Urban areas are particularly vulnerable to flash flooding because they have a lot of paved surfaces. The US Weather Service defines a flood as the inundation of a normally dry area with rising water from a river or stream. Flooding can last days or weeks, which is much longer than flash flooding._x000D_

London Flash Flooding News Fact

_x000D_Flash flooding paralyzed London’s transport network on 12 July 2021, as around 70 mm of rainfall fell in a short space of time over a highly populated urban area. Flash flooding is different from floodings, such as the extraordinary floods that caused the deaths of more than 180 people in Germany and Belgium.

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