NOUS41 KWBC 231157



Service Change Notice 11-44

National Weather Service Headquarters Washington DC

700 AM EST Fri Dec 23 2011


TO:       Regional Meteorological Telecommunications Network

          (RMTN) Users of the International Satellite

          Communications System (ISCS) in WMO Regions III and IV


FROM:     Craig Hodan

          Chief, NWS Dissemination Systems Branch


SUBJECT:  ISCS Broadcast Ending and Being Replaced by the

          GTS Internet File Service (GIFS) Effective
          June 30, 2011


ISCS Broadcast will end June 30, 2012, when the FAA ISCS contract expires. NWS is replacing the ISCS satellite broadcast service, which provides meteorological and aviation weather products to WMO Regional Association IV members and participating states, with the Global Telecommunication System (GTS) Internet File Service (GIFS)


GIFS will make the ISCS broadcast products available for download via https over the Internet as a data pull service. GIFS will allow the current set of WMO Regional Association IV (RA-IV) ISCS users and other select Member States to access products through the NWS issuance of authorized service usernames and passwords. The new system will be available for preliminary use and assessment by April 1, 2012. All RA-IV
ISCS users will need to transition from ISCS to GIFS by
June 30, 2012.


Coordinating information and status updates on the GIFS implementation and transition is provided on the NWS ISCS Webpage:


This Website will be updated to keep you informed on the schedule, progress and status of this transition.


If you have questions or comments, please contact:


  Robert Gillespie, PMP

  Program Manager, ISCS

  Silver Spring , MD 20910

  301-713-9478 x 140


National Service Change Notices are online at: