Breadcrumb Home Data Gridded Data Gridded Data NSF Unidata provides access to gridded data products from numerical weather prediction / forecasting models operated by the NOAA National Centers for Environmental Prediction (NCEP) and the Canadian Meteorological Centre (CMC). Gridded Data Products Available NCEP Data Products We provide access to a variety of gridded data products generated by the National Centers for Environmental Prediction (NCEP/NOAA). CMC Data Products We provide access to gridded data products from the Canadian Meteorological Centre (CMC).