North Carolina Flooding Probabilities

State of North Carolina

This dataset was produced from five different return period flood events. The 3D water surface and depth rasters were computed for the 10-, 25-, 50-, 100-, and 500-year floods. Statistics were computed for the areas quantifying the threshold flooding event and the likelihood of flooding over a thirty-year period. This likelihood is rendered by color. The resulting products are used as a communication tool to display the cumulative risk for areas both inside and outside the 1 percent annual chance floodplain.

Courtesy of North Carolina Geospatial & Technology Management Office.

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