This map represents Urban Flooding values in NJ and is to be used in the Urban Flooding dashboard found within the Healthy Community Planning (HCPNJ) website.

The map was created to be shared within the Hudson County Place Vulnerability Instant App. Layers from the Hudson County Place Vulnerability Midterm Web Map were originally copied over and unneeded layers were deleted. The resulting map shows additional hazards other than flooding in Hudson County, NJ.LayersWildfire Hazard Potential: Shows the average wildfire hazard potential for the US on a scale of 1-5. The layer was obtained using ESRI's Living Atlas. Source: https://napsg.maps.arcgis.com/home/item.html?id=ce92e9a37f27439082476c369e2f4254 NOAA Storm Events Database 1950-2021: Shares notable storm events throughout the US recorded by NOAA between the years of 1950-2021. The layer was obtained using ESRI's Living Atlas. Source: https://gisanddata.maps.arcgis.com/home/item.html?id=88cc0d5e55f343c28739af1a091dfc91 Category 1 Hurricane Storm Surge: Includes the expected Inundation Height of areas within the US should a Category 1 Hurricane hit the area. The layer was obtained using the ArcGIS Online Portal. Source: https://gisanddata.maps.arcgis.com/home/item.html?id=49badb9332f14079b69cfa49b56809dc Category 2 Hurricane Storm Surge: Includes the expected Inundation Height of areas within the US should a Category 2 Hurricane hit the area. The layer was obtained using the ArcGIS Online Portal. Source: https://gisanddata.maps.arcgis.com/home/item.html?id=b4e4f410fe9746d5898d98bb7467c1c2 Category 3 Hurricane Storm Surge: Includes the expected Inundation Height of areas within the US should a Category 3 Hurricane hit the area. The layer was obtained using the ArcGIS Online Portal. Source: https://gisanddata.maps.arcgis.com/home/item.html?id=876a38efe537489fb3bc6b490519117f U.S. Sea Level Rise Projections: Shows different sea level rise projections within the United States. The layer was obtained via ESRI's Living Atlas. Source: https://gisanddata.maps.arcgis.com/home/item.html?id=8943e6e91c304ba2997d83b597e32861

These data were created as part of the National Oceanic and Atmospheric Administration Office for Coastal Management's efforts to create an online mapping viewer called the Sea Level Rise and Coastal Flooding Impacts Viewer. It depicts potential sea level rise and its associated impacts on the nation's coastal areas. The purpose of the mapping viewer is to provide coastal managers and scientists with a preliminary look at sea level rise and coastal flooding impacts. The viewer is a screening-level tool that uses nationally consistent data sets and analyses. Data and maps provided can be used at several scales to help gauge trends and prioritize actions for different scenarios. The Sea Level Rise and Coastal Flooding Impacts Viewer may be accessed at: https://coast.noaa.gov/slr. This metadata record describes the New Jersey, Southern digital elevation model (DEM), which is a part of a series of DEMs produced for the National Oceanic and Atmospheric Administration Office for Coastal Management's Sea Level Rise and Coastal Flooding Impacts Viewer described above. This DEM includes the best available lidar known to exist at the time of DEM creation that met project specifications. This DEM includes data for Atlantic, Camden, Cape May, Cumberland, Gloucester, and Salem Counties. The DEM was produced from the following lidar data sets: 1. 2018 New Jersey South Jersey FEMA 2. 2018 NJ Southern NJ 3. 2015 USGS Delaware Valley 4. 2014 NGS Coastal Mapping Program Topobathy Lidar: Post-Sandy Atlantic Seaboard The DEM is referenced vertically to the North American Vertical Datum of 1988 (NAVD88) with vertical units of meters and horizontally to the North American Datum of 1983 (NAD83). The resolution of the DEM is approximately 3 meters.

The Flood Risk Notice and property condition disclosure form requires you to disclose if the property is in the Special Flood Hazard Area (100-year or 1% annual chance floodplain) or the Moderate Flood Hazard Area (500-year or 1% annual chance floodplain). You will need to disclose all FEMA Flood Zones that overlap your property. There may be more than one, or there may be none. This includes any flood zones mapped according to preliminary maps. FEMA periodically re-assesses a community’s flood risk using updated data and modeling and mapping technology. These updated models are published as preliminary maps until they are made effective following a public comment or appeal period.

The absence of flood indicators does not mean that a property is free from flood risk. Flooding can occur anywhere. The geographic extent of flood-prone areas can change due to local factors including increases in impervious surface; changes to stream flow; natural impediments; or aging, poorly maintained, or failing infrastructure. The size and extent of flood prone areas are also expanding due to climate change-related impacts like increasing rainfall intensities and sea-level rise.This tool does not provide information regarding the applicability of any NJDEP regulations. The absence of flood indicators does not mean that a property is free from flood risk. Flooding can occur anywhere. The geographic extent of flood-prone areas can change due to local factors including increases in impervious surface; changes to stream flow; natural impediments; or aging, poorly maintained, or failing infrastructure. The size and extent of flood-prone areas are expanding due to climate change-related impacts like increasing rainfall intensities and sea-level rise.