National Weather Service Weather Forecast Office

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

000
NOXX10 KWBC 052015
PNSWSH
Data Mgt Message 04.24-02

To:  NWWS-OI Users

From:  GISC Washington IDP DataFlow

Subject: Updated: Transition of NOAA Weather Wire Service Open
Interface (NWWS-OI) to New Infrastructure

Effective: April 23...2024 14UTC

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).

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.

With the migration of NWWS-OI to IDP we are enforcing connections
to be Transport Layer Security version 1.2 (TLSv1.2) or higher.
Existing End-User Client software will no longer work with the
new version and customers should move to using a supported
replacement.

Onboarding Team Lead
NCEP Central Operations
idp-support@noaa.gov

https://www.weather.gov/media/notification/pdf_2023_24/scn24-32_nwws-
oi_transition_aaa.pdf

This information is also posted on the NWS IDP DataFlow
change notices web page. The url is listed below.

https://www.weather.gov/datamgmt/notices

IDP DataFlow
NCO Implementation & Data Services Branch
College Park
GISC Washington Sends