![]() ![]() Know your zone and follow evacuation orders. Evacuation zone maps are based on ground elevation and the area’s vulnerability to storm surge. These maps are used for hurricane preparedness and planning.Įvacuation may be necessary due to the risk of storm surge from tropical storms or hurricanes. Storm surge maps display where flooding will occur when an abnormal rise of water generated by a storm is pushed toward the shore by strong winds. NOTE: Federal requirements for flood insurance are only based on the FEMA FIRM, not the Pinellas County flood maps.įind out what the flood hazard and required development standards are BEFORE you develop your plans. As with the high-risk flood zones on FEMA FIRM maps, these floodplain areas are also considered high-risk areas and are subject to specific development regulations. The FIRM is used to determine building and flood insurance requirements.Ĭounty floodplain maps, developed from detailed watershed and coastal studies, also show areas that have a 1% or greater chance of flooding in any given year. High-risk areas have a 1% or greater chance of flooding in any given year. You should check them all to understand what your flood risk is.įEMA flood zone maps, known as Flood Insurance Rate Maps (FIRMs), show areas of high and moderate to low flood risk. A home may be located in a non-evacuation zone, yet be located in a high-risk flood zone because of a nearby stream or pond. Flood zones can be low, moderate or high risk.įlood zones, evacuation zones and storm surge are different. They measure different conditions that may not occur at the same time, are determined by different methods and have different purposes. Everyone in Pinellas County is in a flood zone. And we can make site visits.Anywhere it rains, it can flood. Staff can assist with flood protection and mitigation design questions and with local flooding concerns. The City of Eugene provides free information regarding flood hazards for specific sites within the community and can answer many of your flood-related questions. B Zones may have local, shallow flooding problems. ’Shaded’ Zone X: Area of moderate flood hazard usually depicted on FIRMs as between the limits of the base and 500-year floods of the primary source of flooding. The shaded Zone X corresponds to Zone B and the unshaded Zone X corresponds to Zone C. Zone X: Newer FIRMs show Zones B and C as Zone X. Base flood depths (feet above grade) are provided. AO: SFHA with sheet flow, ponding, or shallow flooding.AE: SFHA where the base flood elevations are provided.A: SFHA where no base flood elevation is provided.The types of A Zones that are applicable to our community: Zone A: The SFHA shown on a community’s FIRM. The SFHA may not encompass all of the community’s flood problems. SFHA (Special Flood Hazard Area): The base floodplain delineated on a Flood Insurance Rate Map. The current effective date of our FIRM is 06/02/99.įIS (Flood Insurance Study): The study provided by FEMA that graphically represents flood heights for certain areas of the floodplain. The base flood is a statistical concept used to ensure that all properties subject to the National Flood Insurance Program are protected to the same degree against flooding.īFE (Base Flood Elevation): The expected elevation the base flood will reach.įIRM (Flood Insurance Rate Map): The flood hazard map provided by FEMA and adopted by our community. Definitions of flood zones and related terms are provided below.īase Flood: The flood having a 1% chance of being equaled or exceeded in any given year, also known as the "100-year" or "1% chance" flood.
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