And along the upper mid-Atlantic and New England coastlines, sea level rise will dominate the future compound flood risk. Along the upper mid-Atlantic and New England coastlines, sea level rise causes the most impact (green). This change in flood risk is for sea level rise alone — additional increases in flood risk because of changes in precipitation are not included. (NOAA’s 2022 sea level rise forecast gives 50% odds that sea level rise along the contiguous U.S. coast by 2100 will exceed 0.7 meters.) This change in flood risk is for sea level rise alone — additional increases in flood risk because of changes in precipitation are not included.