NOAA intends to negotiate a sole source purchase order with Fathom Science, Inc. for services related to scalable coastal ocean modeling emulation for the National Ocean Service. The performance period is one base year plus one option year, running from September 15, 2026 to September 14, 2027. The work involves enhancing the existing AI-based NeuroCast system for NOAA's surge and tide operational forecast system using specialized neural operator technologies. Fathom Science is deemed the only qualified source because it possesses unique expertise and has no authorized partners or resellers. This notice is not a request for competitive proposals, though firms that believe they can fully meet the requirement may submit substantiating documentation for consideration.