#20: Flood Devastation
A flood is defined as water overflowing on land that is usually dry. Floods can occur for a variety of reasons, including increased runoff from melting snow, a lake overflowing, a dam breaking, or—frequently—severe weather causing an area to have more water than it can handle.
The danger of floods is not only that they immediately pose a threat to human life but that they could do a huge amount of damage to buildings and cities, especially if the floodwater stands for a while and doesn’t immediately drain away. As this poster points out, some communities never manage to bounce back from a flood; people are forced out of damaged homes and may, for one reason or another, never return.