defines a flood as a temporary covering by water of land not normally covered by water. In the sense of "flowing water", the word may also be applied to the inflow of the tide
Flooding may result from the volume of water within a body of water, such as a river
, which overflows or breaks levees, with the result that some of the water escapes its usual boundaries.
While the size of a lake or other body of water will vary with seasonal changes in precipitation and snow melt, it is not a significant flood unless such escapes of water endanger land areas used by man like a village, city or other inhabited area.
Floods can also occur in rivers, when flow exceeds the capacity of the river channel, particularly at bends or meanders.
1874 A flood on the Mill River in Massachusetts destroys much of four villages and kills 139 people.
1970 In Vietnam, the worst monsoon to hit the area in six years causes large floods, kills 293, leaves 200,000 homeless and virtually halts the Vietnam War.
1996 Storms provoke severe flooding on the Saguenay River, beginning one of Quebec's costliest natural disasters ever.
2004 Hurricane Jeanne: At least 1,070 in Haiti are reported to have been killed by floods.