Arctic air will continue below normal temperatures across the eastern half of the U.S. into Tuesday with heavy lake effect snow taking a short reprieve across the Great Lakes. A strengthening clipper storm will track north of the Great Lakes midweek with a widespread snow and gusty to strong winds through the region and into the Northeast U.S. followed by the potential for more lake effect snow. Read More >
International Services and Communication Systems
National Program
Response: ISCS is a satellite data distribution system operated by the United States National Weather Service (NWS), providing support to (1) the World Area Forecast System (WAFS), and (2) the Region IV Meteorological Telecommunications Network (RMTN). ISCS support for WAFS is on behalf of the International Civil Aviation organization (ICAO) and World Meteorological Organization (WMO).
ISCS/WAFS purpose is to provide the worldwide aviation community with operational meteorological forecasts and information about meteorological phenomena required for flight planning and safe, economic, and efficient air navigation. The ISCS operates on a 24-hour/365-day basis. ISCS support for RMTN is part of a cooperative effort between NWS and WMO to improve the Global Telecommunications System (GTS), in WMO Region IV (North and Central America).
Response: The WAFS portion of ISCS is moving away from satellite broadcast of aviation related data products, and a WAFS Internet File Service (WIFS) has been established as the replacement. WIFS is currently available for access over the Internet to ISCS/WAFS users.
Response: The ISCS satellite broadcast of both WAFS data and RMTN data will be terminated simultaneously for all users of ISCS the end of June 2012. However, alternative methods will be available to WMO RA-IV users within the next 12 months.
Response: ISCS WAFS users can obtain WAFS related data today by accessing the WAFS Internet File Service (WIFS) over the Internet.
ISCS RA-IV RMTN users can obtain RA-IV related GTS and WAFS data by accessing the Global Telecommunications Internet File Service (GIFS) over the Internet. The GEONetcast-Americas (GNC-A) satellite broadcast is a backup for the NWS GIFS.
Response: The primary difference between WIFS data GIFS data is that WIFS will provide only WAFS data products. GIFS will provide both WAFS and GTS data products in a fashion similar to the current ISCS broadcast.
Response: WAFS users can register by the Internet for access to WIFS at – https://aviationweather.gov/wifs
Response: When GIFS is available; users should contact the ISCS Program Office for access authorization.
Response: The NWS, ISCS Program Office is planning to migrate away from the NOAAnet (now called OPSNet) circuits provided to RA-IV users by June 2012. Users will be notified of the plan to move away from these circuits by June 2012. ISCS users in WMO RA-IV can submit their data by using the Email Data Ingest Service (EDIS) currently available at the NWS Telecommunications Gateway (NWSTG). Users that have not already established an EDIS account with the NWSTG should contact the ISCS Program Office for access authorization. Only text data will be accepted via email from the Users. Users may also FTP their data if they are subscribers to the NWSTG FTP Input (Ingest) Service. Information on the NWSTG FTP Input Service can be found on the Internet at https://www.weather.gov/tg/ftpingest.
Response: All of the ISCS data (WAFS and WMO RA-IV data) is also available on the GTS and via the Internet from the NWSTG FTP File Service (https://www.weather.gov/tg/dataprod). In addition; the NWS is also investigating the GEONetcast-Americas (GNC-A) satellite broadcast as a backup for the NWS GIFS. Additional information on GNC-A can be found on the Internet at https://www.geonetcastamericas.noaa.gov/.
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
International Services and Communication Systems
1325 East West Highway
Silver Spring, MD 20910
Comments? Questions? Please Contact Us.