Types of Floods

flood typesBelieve it or not, there are several types of floods. You already know what flooding is. To refresh your memory, flooding involves the overflowing of water onto land.

There are more than 20,000 communities in the United States which are classified as highly susceptible of being flooded. These communities may be near rivers, small streams, beneath hillsides, or even near the deserts.

The point of the matter is, flooding can occur in any place and in any time. The degree of flooding will vary from place to place. Some floods can only be a few inches high while others can be as high as ten feet with strong current. Some floods will last for just a few minutes while other areas can remain flooded for days or even weeks.

The River Flood

This kind of flood occurs because of the sudden rise of the water in the river. Commonly attributed reasons for the rise of the water level in rivers is too much rain which usually comes from atmospheric conditions like tropical storms.

Sometimes, the combination of rainfall and snow melt can be disastrous for communities living near river systems. The rising river can attack without warning. It is best that you monitor how fast the river rises during extremely strong and long downpours.

The Coastal Flood

Quite similar to river floods in a sense that both are caused by hurricanes, tropical storm, or tropical depressions. The only difference is that coastal floods happen in the coastlines. The strong winds and rains can produce storm surges that not only overwhelms coastal areas but also pushes the sea water towards the shores.

If you add in the element of tides, then it is more than enough to make people worry. Normal tides when it sets in can already cause some minimal coastal flooding, but with the storm tides, strong winds, surging waves and nonstop rains can cause massive coastal floods and can increase the average water level by more than 15 feet.

The Inland Flood

Flooding inland can still be attributed to tropical storms, hurricanes or cyclones. The rains that accompany these kinds of storms can be enough to cause floods in low areas, in places where the ground cannot absorb that too much water, and in places where there’s no outlet for the the excess rain water.

When storms move slowly over land, the flooding problem gets worse. Moreover, the problem with inland floods is that certain areas tend to retain flood waters longer. Maybe because of the ground composition or due to human infrastructures or obstacles, these areas will remain flooded for days prolonging the agony of the flood victims.

The Flash Flood

This is perhaps the most dangerous kind of flood there is. Please understand that we are not underscoring the dangers present in the other kinds of floods. Flooding as a rule is very dangerous. However, the thing with flash floods is that they can occur really without significant warning. They cannot be predicted accurately.

And because of these things, many have died from flash floods. Normally, a flash flood will occur within six hours of a very strong downpour. Mountain lakes or rivers swelling due to the heavy rainfall can cause massive flash flooding. Dam or levee failures can also cause flash floods. The sudden release of water by an ice jam can also bring forth floods that can damage nearby communities with one quick and giant sweep.

 
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