Flash Flood: A flood that rises and falls quite rapidly with little or no advance warning, usually as the result of intense rainfall over a relatively small area. Flash floods can be caused by situations such as a sudden excessive rainfall, the failure of a dam, or the thaw of an ice jam.

 

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Flash Flood: A flood that rises and falls quite rapidly with little or no advance warning, usually as the result of intense rainfall over a relatively small area. Flash floods can be caused by situations . . . View Full Definition

Flood Tide: A tidal current that generally moves landward and occurs during the part of the tide cycle when sea level is rising. (See neap tide for contrast.)

Flooding: A behavior therapy procedure for phobias and other problems involving maladaptive anxiety, in which anxiety producers are presented in intense forms, either in imagination or in real life. T . . . View Full Definition

Floodlight: Artificial light source with a dish shaped reflector and a 125-500+ watt tungsten filament lamp producing evenly spread illumination over the subject.

Flood Strength: Phase of the flood tidal current at the time of maximum speed. Also, the speed at this time. See strength of current.

Green Flash: A brilliant green coloration of the upper edge of the sun, occasionally seen as the sun's apparent disk is about to set below a clear horizon.

Flood Stage: The level of a river or stream where overflow onto surrounding areas can occur.

Flood Hazard Areas: Locations specified on Federal Emergency Management Agency (FEMA) maps indicating areas that are subject to flooding. The sellers agent is required to inform potential buyers if the agent ha . . . View Full Definition

Flood Current: The movement of a tidal cur-rent toward the shore or up a tidal river or estuary. In the mixed type of reversing current, the terms greater flood and lesser flood are applied respectively to . . . View Full Definition

Flood Interval: The interval between the transit of the Moon over the meridian of a place and the time of the following flood strength.