The Five Types of Floods

For the most part there are five different types of floods: flash floods, coastal floods, urban floods, river floods, and ponding floods. The two most common being river and flash floods. River flooding tends to be more widespread, encompassing huge swaths of land while flash floods tend to be more dangerous.

# 1 Flash Flood

Flash floods are floods caused by heavy rainfall or rapid snow melt. They can happen almost out of no where sometimes and occur within few minutes of rainfall but generally last for no longer than 6 hours. The flood water can be very powerful and sometimes can even move cars.

#2 River Flood

River floods occur when excess rain fall and snow melt move downstream causing an overlap on the banks. This overlap then spills the extra water onto the nearby land.

# 3 Coastal flood

When ever there is a coastal process such as waves, tide, storm surge, or heavy rainfall from coastal storms create a flood, it is referred to as Coastal flooding. Coastal flooding tends to be the most extreme when the storm surge is high.

# 4 Pluvial Flood

Pluvial floods happen when there is flooding independent from an overflowing body of water due to extreme rain fall. The most common example of this is when the drainage system is overwhelmed and the excess water pours out into the streets.

# 5 Urban Flood

Urban flooding is flooding that is caused by excess runoff water in developed areas, where the water doesn’t have any where else to go.


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