Factors That Contribute to The Creation of Flood

floodingA flood is simply an overflow of water. As simple as it may seem, it can cause a lot of damage to property as well as to one’s way of life. If limited to a small area, floods won’t be much to think about. But if they affect whole towns and communities, they become a threat and may become a great cause of concern for a great number of people.

A number of factors can contribute to the creation of floods. Heavy and intense rainfall would like bring about floods in an area. Snow run-off from elevated areas would also likely create floods although they usually become worse with continuous heavy rain or heavy snowfall. Floods can also be occur when the soil has become over-saturated with moisture that it can no longer hold any more water. Frozen soil would also a factor for flooding in some areas since the frost may prevent excess water to be absorbed below ground.

Floods can also be created by high water levels in rivers, lakes as well as man-made reservoirs due to large amounts of rain. Ice jams or ice chunks that pile up and block water flow can also be a cause of flooding in some areas. Urbanization can also be another cause of floods. Building cities require clearing up large areas of real estate, cutting up trees and removing natural ground cover in place of concrete structures and roads. Concrete in place of soil would prevent water from seeping down the ground and instead remain above the surface. This can make cities incapable of taking care of excess water during a heavy and intense downpour from flooding the area.

There are basically two basic kinds of floods. There’s the regular flood that is brought about by the gradual overflow of bodies of water to its surrounding areas. This usually occurs in rivers and lakes that cannot contain the increasing amounts of water brought about by heavy precipitation. Other factors such as snow melting and ice blocking water ways can also aggravate the effects of a regular flood. A regular river flood can happen gradually that people may still be able to have some time to prepare for the increasing water levels coming their way. Such floods may not be much of a threat to life but can surely cause a great deal of damage to property.

Predicting such floods are easier as the increase of water levels can be observed as they happen slowly. When an unusual amount of rain or snow is experienced, people may be able to notice water levels from a river or lake getting higher and higher. Observing the increase in water levels can help emergency officials gauge when to provide a flood warning to residents in the affected area. The effect of such floods may not be as sudden, but can be long lasting, river flooding may take days before all the water can go back to their normal levels.

Then there is the flash flood. Flash floods are characterized by a rapid increase or flow of water usually coming from an upland source streaming down to a low lying area. Flash floods can also be brought about by a sudden and heavy downpour that can cause an immediate overflow of water . The excess amount of water will try to find a place to settle in. The rapid increase in water level will cause a stream of water to rush out. They can occur so suddenly that it flash floods that emergency officials in an area may not be able to provide flood warnings on time.

The suddenness and unpredictability of flash floods is what makes them dangerous. They provide little time for people to prepare. Flash floods provide a few tell tale signs of their approach which at times may not be that dependable. That is why notable flash floods in the past have resulted in the loss of many lives. Floods in whatever form should not be handled lightly. They always pose a danger to life and property. Preparedness and vigilance may be the only weapons available to combat floods.

You can leave a response, or trackback from your own site.