Coastal Flood Exposure Mapper

Created: 7/31/2017 - Updated: 2/27/2020


The Coastal Flood Exposure Mapper helps communities understand their risks and vulnerability to coastal flooding. The mapper was first developed following Hurricane Sandy to provide a tool to show areas susceptible to coastal flooding, storm surge, and inundation, and to inform communities and local authorities about the risks their communities face. Users are able to explore maps that show how natural resources, communities, and infrastructure and development will be exposed to coastal flooding hazards. Users can select a given area (data is available for 20 states on the East Coast and Gulf of Mexico), and create maps depicting Federal Emergency Management Agency flood zones, and showing risks from shallow coastal flooding, storm surge, sea level rise, or an aggregate of these risks. The mapper incorporates data from NOAA’s Sea Level Rise Viewer, but expands on the data presented there by showing risk and vulnerability for coastal hazards in addition to sea level rise.

Example in use: The Coastal Flood Exposure Mapper is based on the Roadmap for Adapting to Coastal Risk Approach for assessing coastal hazard risks and vulnerabilities. This approach has been applied in a variety of communities. Miami-Dade County in Florida is vulnerable to the effects of sea level rise, flooding, and other hazards on water availability, stormwater management, and infrastructure. The county developed a sustainability plan called GreenPrint to guide the integration of climate change into existing plans. Part of this effort included developing maps to visualize coastal hazards, climate-related vulnerabilities, and assets.

Phase of Adaptation: Awareness, Assessment, Planning, Implementation, Integration, Monitoring, Sharing

NOAA Office for Coastal Management


This organization was established in 2014 when NOAA combined two offices: the Coastal Services Center and the Office of Ocean and Coastal Resource Management. The basic missions of the two programs remain intact, but the new organizational structure is bringing value-added services to taxpayers.


Sector Addressed
Conservation / Restoration
Development (socioeconomic)
Disaster Risk Management
Land Use Planning
Transportation / Infrastructure
Target Climate Changes and Impacts
Sea level rise
Type of Tool
Habitat/Biome Type