Fm Odbc Installer more. Note: While we are transitioning our web pages, products marked with an (*) link to product pages on the old system. Products on those pages are up-to-date, but links on those pages may go to old information or may be broken. Thank you for your patience! About the NDFD GRIB Decoder The National Digital Forecast Database (NDFD) is a database put together by the National Weather Service (NWS) to provide forecasts of sensible weather elements (e.g., cloud cover, maximum temperature) on a seamless grid. Erd Commander 2008 Isotope more. The NDFD is currently given out to the public as a GRIB2 file. For more information about how and why the NDFD was created, please see the GRIB2 is the second version of the World Meterological Organization's (WMO) standard for distributing gridded data.