NOAA Sea Level Rise Viewer


The NOAA Digital Coast Sea Level Rise Viewer can be used to visualize community-level impacts from coastal flooding or sea level rise (up to 6 feet above average high tides). This viewer provides simulations of future flooding and how it might impact local landmarks, as well as data related to water depth, connectivity, flood frequency, socio-economic vulnerability, wetland loss and migration, and mapping confidence.

The purpose of this data viewer is to provide a preliminary look at sea level rise and coastal flooding impacts. The viewer is a screening-level tool that uses the highest accuracy elevation data sets available at the time maps were produced.

All coastal states and territories are included in the viewer except for Alaska. Currently there are no plans to map Alaska because of a lack of adequate statewide coastal elevation data. All Great Lakes states are included in a separate viewer, called the Lake Level Viewer ( These areas have been mapped for both inundation and lake level drop.

New elevation data are continuously being collected by various federal, state, and local entities, so it is possible that newer data have been collected since the mapping areas were originally populated.



To access the NOAA Sea Level Rise Viewer, visit

More information about the viewer can be found at

A tutorial for the local scenarios tab of the tool can be found at