These areas have a 26% chance of flooding over the life of a 30-year mortgage. 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. Base flood elevations derived from detailed analyses are shown at selected intervals within these zones. This is the base floodplain where the FIRM shows a BFE (old format)ДЄreas 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.

These are known as numbered A Zones (e.g., A7 or A14). AE Zones are now used on new format FIRMs instead of A1-A30 Zones The base floodplain where base flood elevations are provided. Because detailed analyses are not performed for such areas no depths or base flood elevations are shown within these zones. In communities that participate in the NFIP, mandatory flood insurance purchase requirements apply to all of these zones ZoneДЄreas with a 1% annual chance of flooding and a 26% chance of flooding over the life of a 30-year mortgage. Zone X is the area determined to be outside the 500-year flood and protected by levee from 100-year flood. Zone C may have ponding and local drainage problems that don't warrant a detailed study or designation as base floodplain. B Zones are also used to designate base floodplains of lesser hazards, such as areas protected by levees from 100-year flood, or shallow flooding areas with average depths of less than one foot or drainage areas less than 1 square mile.ДЄrea of minimal flood hazard, usually depicted on FIRMs as above the 500-year flood level.

In communities that participate in the NFIP, flood insurance is available to all property owners and renters in these zones: ZoneДЄrea of moderate flood hazard, usually the area between the limits of the 100-year and 500-year floods. Each zone reflects the severity or type of flooding in the area. These zones are depicted on a community's Flood Insurance Rate Map (FIRM) or Flood Hazard Boundary Map. Definitions of FEMA Flood Zone DesignationsДЇlood zones are geographic areas that the FEMA has defined according to varying levels of flood risk.

Fema region x