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    EDIS Registration Form:

    The Email Data Input System (EDIS) will be upgraded on or around August 30, 2016. All EDIS partners are required to register for the new system as soon as possible. The proposed schedule has the NWS shutting down the legacy EDIS service by September 15, 2016. The following webpage is activated allowing partners to register for a new account on the new EDIS system.

    Please fill out the EDIS Registration Form


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



San Juan (TJSJ) Baseline Cleanup - EMWIN



Assign Airport Weather Warning (AWW) Products Priority 1 - EMWIN

7/5/2016 ISCS-0126A

Tropical Cyclone Product Harmonization - EMWIN

7/5/2016 ISCS-0125A

Tropical Cyclone Product Harmonization - GIFS

7/5/2016 ISCS-0124A

Tropical Cyclone Product Harmonization - GNCA

6/10/2016 ISCS-0123A

Tsunami Product Harmonization - GIFS GNC-A

5/26/2016 ISCS-0122

Tsunami Product Harmonization - EMWIN

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