The National Digital Forecast Database (NDFD) is a suite of products generated by the National Weather Service (NWS) using data from regional NWS Weather Forecast Offices (WFOs) and the National Centers for Environmental Prediction (NCEP). Forecast products locally generated at WFOs are digitally entered into the NDFD. Additionally, forecasters at WFOs enhance gridded model data generated by NCEP and enter these data into the NDFD. The products in the NDFD are used by the NWS to make text, graphic, and digital products that are then made available to the public and emergency managers. The NDFD also provides data for commercial weather companies to generate their own products based off of NWS forecasts.

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