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Coastal Flooding Maps

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Here are mapping tools and data layers to help you analyze and assess vulnerabilities in coastal communities from the combination of sea level rise, storm surges, and sinking lands. These resources aim to help coastal communities identify and reduce vulnerabilities to inundation and improve their resilience.

Note: Images have embedded links

Sandy Sea Level Rise Planning Tool – New York City

The Sandy Sea Level Rise Planning Tool – New York City maps sea level rise risk scenarios in New York City, NY, based on Hurricane Sandy impacts. Contributors: NOAA

Map of NYC sea level rise scenarios for the 2050s

Sea Level Rise Viewer

The Sea Level Rise Viewer is an interactive map viewer that displays areas of sea level rise and potential coastal flooding impacts. Contributors: NOAA

Map of sea level rise scenarios in the southeastern U.S.

Historical Hurricane Tracks Tool

The Historical Hurricane Tracks Tool allows users to visualize historic hurricane paths and intensities along their path. Contributors: NOAA

Path and intensity of Hurricane Harvey in 2017

International Best Track Archive for Climate Stewardship (IBTrACS)

The International Best Track Archive for Climate Stewardship (IBTrACS) project compiles recent and historical global tropical cyclone data from various centers to improve data availability and discovery. Contributors: NOAA, NCEI

The International Best Track Archive for Climate Stewardship homepage

NOAA nowCOAST Web Mapping Portal

NOAA’s nowCOAST Web Portal for Near-Real-Time Coastal Information provides users with near-real-time coastal observations, forecasts, and warnings. Contributors: NOAA

Radar image of Tropical Cyclone Idalia and active alerts

NOAA Coastal Change Analysis Program (C-CAP) Land Cover Atlas

NOAA’s Coastal Change Analysis Program (C-CAP) Land Cover Atlas is an online data viewer for coastal land cover and land cover change information, such as forest loss or new urban development. Contributors: NOAA

Map of land cover change in the Lower Mississippi-New Orleans Watershed

FEMA National Flood Hazard Layer (NFHL)

FEMA's National Flood Hazard Layer (NFHL) Viewer is a visualization tool that allows users to view, download, and print flood hazard data. Contributors: FEMA

Map of the FEMA National Flood Hazard Layer

FEMA Hazus Average Annualized Loss Viewer

FEMA’s Hazus Average Annualized Loss Viewer to assess and mitigate risks and vulnerabilities associated with flooding using FEMA MOTF and Hazus Loss Estimation Model. *Requires ArcGIS FEMA user account to view. Contributors: FEMA

Map of FEMA Hazus flood risk in the U.S.

Coastal Change Hazards Portal

The Coastal Change Hazards Portal is an interactive data viewer that provides access to coastal change data such as shoreline change and sea level rise. Contributors: USGS

Map of historic shoreline positions in the U.S.

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