Flood extent and uncertainty projections at Pierce County, Washington

Flood extents, upper and lower uncertainty bounds of flood extents, and low lying vulnerable areas associated with coincident compound coastal hazards—specifically sea-level rise (SLR), projected coastal storms, and streamflow—are provided for Pierce County, Washington. These products are consistent with other data in this release (for example, flood depths and water elevation), supporting integrated coastal hazard assessments for Washington communities. The data are provided as shapefiles for 42 storm and SLR combinations (SLR scenarios 0, 0.25, 0.5, 1.0, 1.5, 2.0, and 3.0 meters (m) combined with 1-year, 10-year, 20-year, 50-year, and 100-year storm return periods, as well as the background, no storm, conditions).