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Using the National Flood Hazard Layer Web Map Service (WMS) in Google Earth™: shows users how to use the NFHL in the Google Earth ™ application, including information on how to download Google Earth ™ onto your computer and how to download the NFHL or Stay Dry KMZ files.*Note: Shapefiles listed below use geographic coordinate system WGS 84 - EPSG:4326.However, to use the NFHL data for official purposes, you are responsible for making sure base map data meet FEMA’s accuracy standards and the locations depicted are interpreted properly.
The best way for you to access the data is through the NFHL Viewer.
From the NFHL Viewer, you may view, download, and print flood maps for your location.
The National Flood Hazard Layer (NFHL) is a database that contains current effective flood hazard mapping data.
FEMA’s Risk MAP program provides the data so that you can better understand your level of flood risk and type of flooding.
You can also use the address search on the FEMA Flood Map Service Center (MSC) to view the NFHL data or download a FIRMette.
Using the “Search All Products” on the MSC, you can download the NFHL data for a County or State in a GIS file format.
*Tip: For map layer attribute data in a tabular format you can open the file (part of the shapefile) in MS Excel. Layer includes interstate trunk lines and selected intrastate lines but excludes gathering lines.
Based on publicly available data from a variety of sources with varying scales and levels of accuracy.
GIS Web Services for the FEMA Flood Hazard Data: contains information regarding the various GIS Services available to access the NFHL.