Frequently Asked Questions (FAQs)

  1. Why should I use the NOAA Weather Wire Service (NWWS)?
    NWWS is the fastest delivery method to receive text alerts, warnings, advisories, and weather information from the National Weather Service (NWS). Alerts and warnings are available to the NWWS user within seconds of issuance.

  2. What are the different methods of receiving NWWS products?
    NWWS can be received over Satellite or the Internet “Open Interface”.

  3. What steps are needed to receive the NWWS?
    Users are recommended to use SBN/NOAAPORT Channel 201 and Open Interface for high product availability.

    See CONFIGURATION for hardware and software requirements.

  4. What are the NWWS product formats?
  5. NWWS products start as text based messages using the World Meteorological Organization (WMO) standard format ( Most dissemination methods leave the NWWS product format unchanged.

    See DISSEMINATION for platforms and formats.


  6. What is the history of NWWS?
    NWWS was originally developed and leased from Computer Sciences Corporation (CSC) from 1999 to 2015. The NWS Enterprise Solution for NWWS was available April 1, 2015 for public evaluation and officially in operation on July 1, 2015.

  8. When will CAPv1.2 be available?
  9. Common Alert Protocol (CAP) version 1.2 is available experimentally. It's currently a WMO header wrapped message on SBN/NOAAPORT PID 101-105 only.


    Additional development is in process to place CAP v1.2 on Implementation Date - TBD

    More information on CAP v1.2 can be found at


  10. If I can't receive NWWS by the methods indicated, what other methods are available to receive weather alerts?
    NWWS products are available over radio, telephone, pager, and television. See PRODUCT DISSEMINATION.