A rising and overflowing of a body of water especially onto normally dry land.
Any land area susceptible to being flooded by water.
The flood having a one percent chance of being equaled or exceeded in any given year. Sometimes referred to as the “1-percent annual chance flood” or “100-year flood.”
Base Flood Elevation
The height of the base flood, usually in feet, above sea level.
Special Flood Hazard Area (SFHA)
Land within a floodplain subject to the base flood / 1-percent annual chance flood. Includes zones A, AE and AH on FEMA FIRMs.
Flood Insurance Rate Map (FIRM)
Official map of a community on which FEMA has delineated the Special Flood Hazard Areas (SFHAs) and Base Flood Elevations (BFEs).
The channel of a river or other watercourse and the adjacent land areas that must be reserved in order to discharge the base flood without increasing the water surface elevation by more than a designated heigh (City of Orlando allows a 0.00’ increase).
The boundary of the flood that has a 0.2 percent chance of being equaled or exceeded in any given year. This area is not considered a Special Flood Hazard Area (SFHA).