Description: Observed storm surge flood elevations from Hurricane Sandy, collected by the U.S. Geological Survey (USGS). These elevations, expressed in feet referenced to the North American Vertical Datum of 1988 (NAVD88), represent provisional USGS high water marks and storm tide sensors. These elevations are provided as a point of context between the Advisory Base Flood Elevations (ABFEs) and the storm surge elevation from Hurricane Sandy.
Name: Limit of Advisory Base Flood Elevations (zoom in to make visible)
Display Field: STATE
Type: Feature Layer
Geometry Type: esriGeometryPolyline
Description: The Advisory Limit of ABFEs is the limit Advisory Base Flood Elevation data and approximate transition to the Effective FIRM BFEs in riverine areas.
Description: The FIRM issued by FEMA that is in effect as of the date shown in the title block of the map as "Effective Date", "Revised", or "Map Revised" and is to be used by the community and others for flood insurance and floodplain management purposes. The map area shown on each Advisory Map panel overlays exactly with the boundary of the respective effective FIRM panels for ease of comparison between the two products. Typically, the effective FIRM panels are at a scale of 1”=500’ scale, so four effective FIRM panels will fit within one Advisory Map panel shown at 1”=1000.’
Description: The Advisory Map Panels layer shows the map paneling scheme used to produce the New Jersey and New York Advisory flood hazard information. The symbology shown for each map panel in this layer indicates its current availability:
• Green: Advisory information for the panel is currently available
• Yellow: Advisory information for the panel is partially available
• Diagonal hatching: Advisory information is not yet available for the panel.
If there is no panel outline shown on the map, currently there are no plans to produce Advisory flood hazard information for that area.
To download a .pdf version of a map panel from the interactive ABFE map showing the Advisory information (once available), simply click on the desired map panel while the Advisory Map Panel layer is turned on and click on the ‘PDF Map Hyperlink’ field in the pop up window. The .pdf map panels are produced at a scale of 1” = 1,000 feet.
Color: [0, 0, 0, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: left Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 10 Font Family: Times New Roman Font Style: normal Font Weight: bold Font Decoration: none
Description: The U.S. Department of Interior, Fish and Wildlife Service, has designated areas on undeveloped coastal barriers in the Coastal Barrier Resources System. These areas are shown on the CBRA Zones map layer. These areas are identified because Federal funding prohibitions, including Federal flood insurance, Federal loans, and Federal subsidies, may apply depending on the date of CBRA Zone designation and the type of designation. Further information on the CBRA Zones can be found at www.fws.gov/cbra.
Name: Advisory Zone V-A Boundary (zoom in to make visible)
Display Field: SHAPE_Length
Type: Feature Layer
Geometry Type: esriGeometryPolyline
Description: The division between the Advisory flood hazard Zone V and Advisory flood hazard Zone A. This is where the high velocity wave action greater than 3 ft in height is anticipated to end for a coastal 1% annual chance flood. Zone V, also known as the coastal high hazard area, is subject to more stringent building requirements than other zones because these areas are exposed to a higher level of risk.
Name: Limit of Moderate Wave Action (LiMWA) (zoom in to make visible)
Display Field: STATE
Type: Feature Layer
Geometry Type: esriGeometryPolyline
Description: The LiMWA depicts the limit of the Area of Moderate Wave Action (MOWA), the portion of the 1% annual chance coastal Advisory flood hazard area referenced by building codes and standards, where base flood wave heights are between 1.5 and 3 feet, and where wave characteristics are deemed sufficient to damage many National Flood Insurance Program (NFIP)-compliant structures on shallow or solid wall foundations.
Name: Advisory Limit of the 1% Flood Hazard Area (zoom in to make visible)
Display Field: SHAPE_Length
Type: Feature Layer
Geometry Type: esriGeometryPolyline
Description: The limit of the Advisory 1% annual chance floodplain. The advisory 1% annual chance floodplain includes both V and A Advisory flood hazard zones.
Name: Advisory Shaded Zone X (zoom in to make visible)
Display Field: ZONE
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: The Advisory Shaded Zone X map layer shows areas of moderate coastal flood risk outside the regulatory 1% annual chance flood but within the limits of the 0.2% annual chance flood level.
Name: Advisory Base Flood Elevation Zones (zoom in to make visible)
Display Field: ZONE
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: A map layer which indicates whether a zone is designated as a V or A flood hazard zone and which provides the 0.2% Advisory Flood Elevation and the 1% Advisory Base Flood Elevation (ABFE) in feet referenced to the North American Vertical Datum of 1988 (NAV88) for the zone. Different ABFE zones are distinguished by yellow lines.
Name: Area of MOderate Wave Action (MOWA) (zoom in to make visible)
Display Field: SHAPE_Length
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: The portion of the 1% annual chance coastal Advisory flood hazard area referenced by building codes and standards, where base flood wave heights are between 1.5 and 3 feet, and where wave characteristics are deemed sufficient to damage many National Flood Insurance Program (NFIP)-compliant structures on shallow or solid wall foundations.
Name: Advisory Zones V and A (zoom in to make visible)
Display Field: ZONE
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: The Advisory 1% annual chance floodplain includes both A and V Advisory flood hazard zones:
Advisory Zone V is comprised of the area subject to high velocity wave action (a 3-foot breaking wave) from the 1% annual chance coastal flood. Zone V is subject to more stringent building requirements than other zones because these areas are exposed to a higher level of risk.
Advisory Zone A is comprised of the area subject to storm surge flooding from the 1% annual chance coastal flood. These areas are not subject to high velocity wave action but are still considered high risk flooding areas.