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Service Change Notice 25-82
National Weather Service Headquarters Silver Spring MD
320 PM EST TUE DEC 2 2025

To: Subscribers:
 -NOAA Weather Wire Service
 -Emergency Managers Weather Information Network
 -NOAAPort
 Other NWS Partners, Users and Employees

From: David Michaud, Director
 NCEP Central Operations

Subject: Termination of NCEP Model Data Service FTPPRD
Effective: Feb 23, 2026

The National Centers for Environmental Prediction (NCEP) is
terminating public access to the model data access service
FTPPRD, which corresponds to the URLs ftpprd.ncep.noaa.gov and
ftp.ncep.noaa.gov, effective 1200 UTC Feb 23, 2026. In the event
that the implementation date is declared a Critical Weather Day
(CWD), an Enhanced Caution Event (ECE), or other significant
weather is occurring or is anticipated to occur, implementation
of this change will take place at 1200 UTC on the next weekday
not declared a CWD and when no significant weather is occurring.

Users currently retrieving NCEP data from FTPPRD via FTP will be
able to access the same data on NOMADS via HTTPS. Both NOMADS
and FTPPRD utilize shared infrastructure, so data availability
and arrival times will not change.

FTPPRD paths:
ftp://ftpprd.ncep.noaa.gov/pub/data/nccf/com/
ftp://ftp.ncep.noaa.gov/data/nccf/com/

Equivalent NOMADS path:
https://nomads.ncep.noaa.gov/pub/data/nccf/com/

This termination is part of a larger effort to enable more
efficient offloading of model data traffic to NCEP`s Content
Delivery Network. This will not affect any other FTP protocol
services hosted by NCEP.

Please submit comments, questions, or requests pertaining to
this change to:

Margaret Curtis
NCEP Central Operations HPC Dataflow Team Lead
ncep.pmb.dataflow@noaa.gov

National Service Change Notices are online at:

https://www.weather.gov/notification/