Zone A - used to designate an area with a one percent chance of flooding in any given year - which equates to a 26 percent chance of the property being flooded during a standard 30-year mortgage period. There are several different zones that help to describe the specific nature of the flood risk. Special Flood Hazard AreasĪreas that have a one percent or greater chance of being flooded in a given year are designated as Special Flood Hazard Areas (SFHAs) by FEMA. Within these broader categories of high-risk and low-risk flood zones, there are several letter designations that explain in greater detail the severity and type of flood threat an area may face. The 100-year floodplain standard (also known as the base flood) is the baseline for determining an area’s risk for flooding, and plays a direct role in whether an area will be given a high-risk or moderate to low-risk designation. Of course, there are many locations that could experience flooding on a much more frequent basis. Breaking Down FEMA Flood ZonesįEMA determines flood hazard based on the likelihood that an area will experience one flood during a 100-year period - or in other words, that an area has a one percent chance of experiencing a major flood event in any given year. Here’s what you need to know about the different FEMA flood zones (including Florida Keys flood zones), and what they mean for your flood insurance needs. FEMA flood zone designations are available to assess an area’s flood risk, and will go a long way in helping you decide if you need flood insurance for your property. The good news, however, is that you don’t have to leave the question of whether you should leave flood insurance to guesswork. While obtaining flood insurance can increase your annual premium by several hundred dollars, its benefits can well outweigh the costs if your property was to suffer flood damage. Flood insurance covers water damage that stems from heavy rains, storm surges, high tides and other natural disasters.
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