In 2014, however, implementations will be rapid and substantial, so the content of the NWP and EPS matrices will become more outdated. Already in 2014, the Rapid Refresh Model (RAP) was upgraded to version 2, and the Short-Range Ensemble Forecast (SREF) system had a major upgrade. For more information on these changes, see the Technical Information Notice (TIN) at http://www.nws.noaa.gov/os/notification/tin13-38rap_aab.htm for the RAP, and http://www.nws.noaa.gov/os/notification/tin14-02sref_winter_aaa.htm for the SREF.
Changes to the Real-Time Mesoscale Analysis (RTMA) were also detailed on the NWP matrix through December 2008. See the RTMA module addendum for changes since then.