Year 2100 Mean Higher High Water (MHHW) in Virginia. NOAA's intermediate-high climate scenario published in 2022 projected 5 to 6 ft of Sea Level Rise above current MHHW.

This dataset was created as part of the National Oceanic and Atmospheric Administration (NOAA) Office for Coastal Management's (OCM) efforts to create an online mapping viewer depicting potential sea level rise and its associated impacts on the nation's coastal areas. The purpose of the mapping viewer is to provide coastal managers and scientists with a preliminary look at sea level rise and coastal flooding impacts. The viewer is a screening-level tool that uses nationally consistent data sets and analyses. 

Data and maps provided can be used at several scales to help gauge trends and prioritize actions for different scenarios. The purpose of this dataset is to show potential sea level rise inundation of 5-6 ft above current Mean Higher High Water (MHHW) for the area. Tiles have been cached down to Level ID 15 (1:18,055). 

This dataset illustrates the scale of potential flooding, not the exact location, and does not account for erosion, subsidence, or future construction. Inundation is shown as it would appear during the highest high tides (excludes wind driven tides) with the sea level rise amount. The dataset should be used only as a screening-level tool for management decisions. As with all remotely sensed data, all features should be verified with a site visit. 

For more information visit the Sea Level Rise Impacts Viewer (http://coast.noaa.gov/slr).