NOAA intends to award a sole source purchase order to IC Weather LLC for integrating the MPAS atmospheric dynamical core into the existing PyTorch framework, with work performed in Silver Spring, MD. The effort will enable GPU acceleration, support machine learning-based parameterizations, and provide gradient access for 4DVAR data assimilation and FSOI studies. The government considers this vendor uniquely capable due to its proprietary MPAS-PyTorch software, and no competitive solicitation package is available. Interested firms that believe they can meet the requirement may submit substantiating documentation for consideration, but this notice is not a request for competitive proposals.