![]() ![]() Flood insurance is not required within these zones. For more information on using the data in Google Earth™, please see Using the National Flood Hazard Layer Web Map Service (WMS) in Google Earth™. FEMA’s low and moderate-risk flood zones those outside the SFHA are those that begin with the letters X, B, or C. To do so, you will need GIS or mapping software that can read data in shapefile format.įEMA also offers a download of a KMZ (keyhole markup file zipped) file, which overlays the data in Google Earth™. This data can be used in most GIS applications to perform spatial analyses and for integration into custom maps and reports. Using the “Search All Products” on the MSC, you can download the NFHL data for a County or State in a GIS file format. You can also use the address search on the FEMA Flood Map Service Center (MSC) to view the NFHL data or download a FIRMette. Areas with a 1 chance or higher of flooding. For more information on available services, go to the NFHL GIS Services User Guide. According to FEMA, there’s no such thing as a no-risk zone, but buyers can see how prone their property is to flooding using the flood maps. A Special Flood Hazard Area (SFHA) is a high risk flood zone, and is the land area covered by the base flood on a FIRM. See how different areas are affected by floods and compare with other GIS tools. Technical GIS users can also utilize a series of dedicated GIS web services that allow the NFHL database to be incorporated into websites and GIS applications. Explore the ArcGIS Web Application that displays the FEMA National Flood Hazard Layer (NFHL), a comprehensive database of flood risk data for the United States. The new maps now factor in the lay of the land. These areas were drawn as rough limits around streams and rivers throughout the County and did not factor in the way the land slopes around these streams and rivers. In the NFHL Viewer, you can use the address search or map navigation to locate an area of interest and the NFHL Print Tool to download and print a full Flood Insurance Rate Map (FIRM) or FIRMette (a smaller, printable version of a FIRM) where modernized data exists. The Zone A floodplain limits that were originally adopted by FEMA were only an estimate of areas that may be prone to flooding. ![]() They are easy-to-use resources that go beyond the basic flood hazard information on flood maps.Įxamples of relevant Flood Risk Products for coastal areas include coastal depth grids (which show how deep the water would be during the 1%-annual-chance flood at any given location) and tools that show where the risks from wave heights, severity of flooding, and erosion may have increased.Or you you may view, download, and print current local digital effective flood hazard data in an ArcGIS map. ![]() ![]() These non-regulatory tools are called Flood Risk Products. With these new and updated maps, communities can make floodplain management decisions based on the best available scientific information.įEMA is working with local community officials to produce additional data and hazard mitigation tools that will enable more strategic emergency preparedness, planning and risk reduction in coastal communities. 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. Through Risk Mapping, Assessment and Planning (Risk MAP) , FEMA is updating the nation’s coastal Flood Insurance Studies (FIS) and Flood Insurance Rate Maps (FIRMs, or flood maps), where appropriate, and publishing new flood maps of densely populated areas that were not previously mapped. Flood zones are geographic areas that the FEMA has defined according to varying levels of flood risk. To help coastal communities understand and reduce their risks, FEMA has initiated coastal flood hazard studies for 100% of the populated coastline. ![]()
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