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The National Storm Surge Hazard Map is a risk analysis tool authorized by the National Hurricane Program (NHP) under the Stafford Act for the purposes of developing Hurricane Evacuation Studies and other hurricane planning and mitigation activities. This mapping dataset provides a more user friendly, seamless national map of near worst case storm surge flooding scenarios using the National Weather Service (NWS) SLOSH model Maximum of MEOWs (MOMs) product for Category 3 hurricanes at a HIGH tide scenario. The map adopts the GIS/Mapping process used for the National Hurricane Centers (NHC) real-time Potential Storm Surge Flooding map. However, this is not the real-time Potential Storm Surge Flooding map product.
Storm Surge Hazard Maps: https://www.nhc.noaa.gov/surge/nationalsurge/
Potential Storm Surge Flooding Map: https://www.nhc.noaa.gov/surge/inundation/
National Hurricane Program, Hurricane Planning and Response: https://www.fema.gov/emergency-managers/risk-management/hurricanes/ |
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The National Storm Surge Hazard Map is a risk analysis tool authorized by the National Hurricane Program (NHP) under the Stafford Act for the purposes of developing Hurricane Evacuation Studies and other hurricane planning and mitigation activities. This mapping dataset provides a more user friendly, seamless national map of near worst case storm surge flooding scenarios using the National Weather Service (NWS) SLOSH model Maximum of MEOWs (MOMs) product for Category 3 hurricanes at a HIGH tide scenario. The map adopts the GIS/Mapping process used for the National Hurricane Centers (NHC) real-time Potential Storm Surge Flooding map. However, this is not the real-time Potential Storm Surge Flooding map product.
Storm Surge Hazard Maps: https://www.nhc.noaa.gov/surge/nationalsurge/
Potential Storm Surge Flooding Map: https://www.nhc.noaa.gov/surge/inundation/
National Hurricane Program, Hurricane Planning and Response: https://www.fema.gov/emergency-managers/risk-management/hurricanes/ |
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Data processed by the National Hurricane Center (NHC) Storm Surge Unit. The primary elevation data used to compute inundation is provided by the NOAA Office for Coastal Management (OCM) and the USGS 3D Elevation Program (3DEP) is used outside the extent of OCM data. |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The Sea, Lake, and Overland Surges from Hurricanes (SLOSH) model is a numerical model used by NWS to compute storm surge. Storm surge is defined as the abnormal rise of water generated by a storm, over and above the predicted astronomical tides. Flooding from storm surge depends on many factors, such as the track, intensity, size, and forward speed of the hurricane and the characteristics of the coastline where it comes ashore or passes nearby.</SPAN></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The data and maps in this tool illustrate the scale of potential flooding, not the exact location, and do not account for erosion, subsidence, sea-level change, or future construction. Water levels are based on storm surge and high tide scenarios. The data, maps, and information provided should only be used as a tool for general education/awareness of the storm surge hazard at a city/community level (not for a parcel level or grid cell assessment) or should be used for analyses specified by the National Hurricane Program (NHP). The SLOSH MOM storm surge hazard data used to create these maps are constrained by the extent of the SLOSH grids and users should be aware that risk due to storm surge flooding could extend beyond the areas depicted in these maps. The data and maps in this tool are provided "as is", without warranty to their performance, merchantable state, or fitness for any particular purpose. The entire risk associated with the results and performance of these data is assumed by the user. This tool should be used strictly as a planning reference and storm surge risk awareness tool and not for navigation, permitting, or legal purposes. Consult local officials for evacuation decision making.</SPAN></P></DIV></DIV></DIV> |
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Category 3 SLOSH MOM Inundation (HIGH Tide Scenario) |
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["storm surge","storm surge flooding","storm surge risk","National Hurricane Center","SLOSH","SLOSH MOMs","inundation","tropical cyclones","hurricanes"] |
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en-US |
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