A flood is an instance where large amounts of water overflow the coast line of a body of water and flow throughout the nearby land. Whether it is brought on by excess rain or certain weather conditions, a flood typically brings with it an ample amount of destruction due to the ferocity of the water. Here are the causes of floods:

Tropical Storms

When a tropical storm or hurricane hits land, it brings with it considerable amounts of water. Due to the way in which a hurricane is formed, large amounts of water are pulled from the ocean as the storm moves across the gulf. Once it hits land, that water suddenly begins to be released as pressure changes occur. Depending on the site of the storm, the amount of water that can be released can vary tremendously.What Causes Floods?

When all of this rain begins to hit the ground, bodies of water that are in the area begin to rise. If they rise above their natural barriers that are meant to hold them back, they flow over and flow through any land surrounding it. This is a flood. The damage that it can cause is tremendous.

Seasonal Storms

The same outcome is the same as in tropical storms; however, this is brought on by flooding that happens yearly due to excess storms in a particular season. According to some scientists, the increase in heat around the Earth, known as global warming, can cause increased amounts of evaporation. When that happens, more water enters the lower atmosphere; however, as it begins to cool, the water needs to be released. This release of the water is in the form of a seasonal storm that can cause bodies of water to overflow due to the extreme amounts.

Coastal Flooding

Brought on by either an earthquake at sea or tremendous winds, coastal flooding can do tremendous damage to the coasts of countries. Because there is already so much water in the oceans, as the storms hit and cause large waves, that water crashes down higher up on the shore than would normally. This results in flooding. Tsunamis, as well, cause this form of coastal flooding due to the severity of the storm.