National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
NOUS41 KWBC 011630 AAA
PNSWSH

Service Change Notice 24-32 Updated
National Weather Service Headquarters Silver Spring MD
1230 PM EDT Mon Apr 1 2024

TO:  SUBSCRIBERS:
  -NOAA Weather Wire Service
  -Emergency Managers Weather Information Network
  -NOAAPort
  Other NWS Partners and NWS Employees

FROM:  Ben Kyger
  Director, NCEP Central Operations (NCO)

SUBJECT:  Updated: Transition of NOAA Weather Wire Service Open
Interface
  (NWWS-OI) to New Infrastructure Effective: April 23, 2024

Updated to include technical information to resolve connectivity
issues
for users to the new platform.

On or about April 23, 2024, at 1400 UTC, the NOAA Weather Wire
Service
Open Interface (NWWS-OI) will be transitioned to a new hardware
platform
on the Integrated Dissemination Program (IDP). In the event of a
Critical
Weather Day (CWD) or an Enhanced Caution Event (ECE), the changes
will
occur after the event expires. Details on critical weather can be
found at
https://www.nco.ncep.noaa.gov/status/cwd/

There are no functional changes to the services provided or top-level
application domain name (nwws-oi.weather.gov). Currently, port 5223
is the
port in use for NWWS-OI. During this transition, The service is being
moved to port 5222. Users who are specifically allowing connections
on
port 5223 to IPs currently associated with the domain name will need
to
make a network and connection update to continue using the service.
After
the go-live date, nwws-oi.weather.gov will resolve to either nwws-oi-
bldr.weather.gov or nwws-oi-cprk.weather.gov. If users need more
information about proper network configuration, please use the
contact
below.

During the 6-hr test conducted on March 26th, many users were
disconnected. With the migration of NWWS-OI to IDP, we are enforcing
connections to be Transport Layer Security version 1.2 (TLSv1.2) or
higher. As a result, users are advised that if you were unable to
connect
on March 26th, please update your client applications to newer
versions in
order to continue to use the service. Additionally, anyone using the
NWWS-
OI End-User Client listed at https://weather.gov/nwws will need to
migrate
to using a new client. The NWS support for this application has
ceased and
this client will not work when NWWS-OI is moved to IDP permanently.
Alternatives can be found from the NWWS website under the Access
Information section.



For technical questions regarding this notification, please contact:
Joshua Huber
Onboarding Team Lead
NCEP Central Operations
idp-support@noaa.gov

For Questions about the operational support of NWWS-OI, please
contact:
NCEP Central Operations
Operational Monitoring Branch Tech Control
nco.ops@noaa.gov

General NWWS description and user setup information are online at:
https://www.weather.gov/nwws/

For feedback about the functionality of NWWS-OI, please contact
NWWS.Help@noaa.gov

National Service Change Notices are online at:

https://www.weather.gov/notification