By Ishika Satwika Singh
17th July, 2023
Flash flooding is a specific type of flooding that occurs in a short time frame after a precipitation event generally in less than six hours.
A flash flood is a rapid flooding of low-lying areas: washes, rivers, dry lakes and depressions. It may be caused by heavy rainfall.
It frequently occurs in locations near rivers or lakes and is brought on by high or excessive rainfall, though it can also occur in areas without any nearby bodies of water.
Flash floods are common in desert landscapes after heavy rainfalls and in areas with shallow soil depths above solid bedrock that limits the soil’s ability to absorb rain.
Unlike a regular flood, flash floods can happen lightning-fast, hence the name flash flood.
Delhi saw the highest rainfall in a single day in the month of July since 1982. The national capital received 153mm rainfall in the 24 hours