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February 2020

NOAA Atlas 14 Precipitation Frequency Atlas of the United States

NOAA Atlas 14 is a project of the National Weather Service’s Hydrometeorological Design Studies Center (HDSC) that provides precipitation frequency information for the U.S. states and territories. NOAA precipitation frequency estimates serve as the de-facto standards for designing, building and operating infrastructure to withstand the forces of heavy precipitation and floods.

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