Flood water usually comes from one of two sources, ice pack from the winter build up of snow in higher elevations, and rainstorms. In most cases, the amount of water being sent down the watershed is not enough to overflow the banks of a body of water, but in extreme circumstances the water can overflow. Natural disasters can also cause flooding. This is especially the case with hurricanes and earthquakes. Not only are hurricanes associated with large amounts of rain, the extreme wind gusts can also be devastating.
A flood is an overflow of water that submerges land that is usually dry.
Cars:
Floods can pose the same threats of a car crash in some instances. Floods, especially in urban areas, can cause minor to irreparable damage to cars.
Homes:
Floods can do a lot of damage to homes from the foundation to the roof, resulting in damage from the outside walls to the floor boards.
By: Matthew K.
As little as 2 feet (0.61 m) of water is enough to carry away most SUV-sized vehicles. The U.S. National Weather Service reported in 2005 that, using a national 30-year average, more people die yearly in floods, 127 on average, than by lightning (73), tornadoes (65), or hurricanes (16).
http://www.ehow.com/info_8066168_kinds-damage-can-floods-do.html
http://en.wikipedia.org/wiki/Flood
http://environment.nationalgeographic.com/environment/natural-disasters/floods-profile/
http://en.wikipedia.org/wiki/Flash_flood
some types of floods are:
~Urban floods
~River (or fluvial) floods
~Ponding (or pluvial flooding)
~Flash floods
~Coastal floods