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    EDIS Registration Form:

    The RTH-Washington Email Data Input System (EDIS) is being upgraded for improved efficiency and to enhance security. The current EDIS system and all current EDIS user accounts will cease operation on 01 October 2016. All current EDIS account holders/users should re-register as soon as possible to create their new EDIS user account. Further information on the transition and use of the new EDIS will be published in a Service Change Notice on or about 01 September 2016.

    Please fill out the EDIS Registration Form

    EDIS User Guide


The US National Weather Service "International Services and Communication Systems" (ISCS) activity is a collective group of message dissemination systems used to provide weather, water and climate information to segments of the World Meteorological Organization (WMO) International community as described in WMO document No. 386 - Manual on the Global Telecommunication System. The ISCS systems provide service to WMO Regional Association IV (RA-IV) and are managed by the US National Weather Service (NWS) Dissemination Systems Branch (W/OPS17); they include:

  • GTS Internet File Service (GIFS)
  • GeoNetCast - Americas (GNC-A)
  • Emergency Managers Weather Information Network (EMWIN)

ISCS systems are an integral part of the RA-IV Regional Meteorological Telecommunications Network (RMTN), which focuses on the timely collection and delivery of both time-critical and routine watches, warnings, observations and forecasts.

Additional telecommunication systems are identified as part of the RA-IV RMTN which supplement the capabilities of the ISCS systems for the exchange of messages. These other systems include:

  • NWSTG FTPS Ingest Server [RTH Washington System]
  • Email Data Input Service (EDIS) [RTH Washington System]
  • WAFS Internet File Service (WIFS) receive service [WAFC Washington System (FAA/ICAO)]

ISCS Notification

11/13/2018 ISCS-0184

Restore FZUS61KCLE to AWDS table (QA)
10/31/2018 ISCS-0183

Add Public Information Statement (PNS) products for NHC and AK

DM10-18.02 GOES-15 (GOES-West) Satellite Drift to 128-degrees West
Commencing 2015 UTC, October 23, 2018

POSTPONED: Due Critical Weather Day (CWD) declaration, the GOES-15 (GOES-West) SXI Outage has been rescheduled to October 29, 2018.

For more information go to


GOES-13/14/15/16 Fall 2018 Solar RFI

NESDIS has provided the following information concerning the potential for outages of the GOES data stream, including EMWIN.

The potential for solar radio frequency interference (RFI) with a satellite downlink circuit will occur whenever the Sun passes into the beam of the ground station receiving antenna.

More information can be found here.



Add Other Surface Observations (OSO) product for Alaska.



Restore FZUS51KCLE to AWDS table.

ISCS Network

SSL-VPN Email Data Input Service (EDIS) Aviation Weather (WIFS) GeoNetCast Americas (GNC-A) EMWIN Antigua Bahamas Barbados Belize Costa Rica Curacao El Salvador Jamaica St. Lucia Trinidad GTS Internet File Service (GIFS) AWC Kansas City Guyana