New Modeled Water Data: Data Companion Release January 2026

This recorded webinar demonstrates how to access and use new modeled water data delivered through the National Water Availability Assessment Data Companion (NWDC). The NWDC is a centralized website providing USGS model-derived water availability, supply, and use information that underlies the National Water Availability Assessment Report. Newly released datasets provide model-based estimates of natural water supply, including variables like precipitation, baseflow, and soil moisture, and a novel integrated surface water supply and use index. Speakers presented an overview of the NWDC and the motivation for developing it, discussed selected key findings from the National Water Availability Assessment, and demonstrated how to retrieve data supporting those findings from the NWDC. Learn more and explore the data here.