Base flood elevations derived from detailed analyses are shown at selected intervals within these zones. These areas have a 26% chance of flooding over the life of a 30 year mortgage. Flood insurance rate zones that are outside the flood plain or the. A property in the X zone is not within what is called a Special Flood Hazard Area, meaning that there is a lower risk of flooding and there is likely no requirement to purchase flood insurance. For the least amount of risk, X is the way to go. VE - Coastal areas with a 1% or greater chance of flooding and an additional hazard associated with storm waves. By adopting the flood maps, Broward County is assured that FEMA will offer. The known low risk zones (less than 1 flood risk each year): 2. Average flood depths derived from detailed analyses are shown within these zones. Base flood elevations derived from detailed analyses are shown at selected intervals within these zones.ĪO - River or stream flood hazard areas, and areas with a 1% or greater chance of shallow flooding each year, usually in the form of sheet flow, with an average depth ranging from 1 to 3 feet. These areas have a 26% chance of flooding over the life of a 30 ‐ year mortgage. Because detailed analyses are not performed for such areas no depths or base flood elevations are shown within these zones.ĪE - The base floodplain where base flood elevations are provided.ĪH - Areas with a 1% annual chance of shallow flooding, usually in the form of a pond, with an average depth ranging from 1 to 3 feet. Areas that are outside the 0.2 annual chance of flooding. shown on flood maps as zones beginning with the letters B, C or X (or a shaded. A flood zone is an area designated on the Flood Insurance Rate Map (FIRM) that is. The SFHA designations which appear within Bay County are explained further below.Ī - Areas with a 1% annual chance of flooding and a 26% chance of flooding over the life of a 30 year mortgage. Flood maps, known officially as Flood Insurance Rate Maps (FIRMs). The areas of minimal flood hazard, which are the areas outside the SFHA and higher than the elevation of the 0.2-percent-annual-chance flood, are labeled Zone C or Zone X (unshaded). Moderate flood hazard areas, labeled Zone B or Zone X (shaded) are also shown on the FIRM, and are the areas between the limits of the base flood and the 0.2-percent-annual-chance (or 500-year) flood. SFHAs are labeled as Zone A, Zone AO, Zone AH, Zones A1-A30, Zone AE, Zone A99, Zone AR, Zone AR/AE, Zone AR/AO, Zone AR/A1-A30, Zone AR/A, Zone V, Zone VE, and Zones V1-V30. The 1-percent annual chance flood is also referred to as the base flood or 100-year flood. SFHA are defined as the area that will be inundated by the flood event having a 1-percent chance of being equaled or exceeded in any given year. Flood hazard areas identified on the Flood Insurance Rate Map are identified as a Special Flood Hazard Area (SFHA).
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