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NWS > NCO > IDSB > NCEP Product Inventory > NOS Model Products

NCEP Products Inventory

National Ocean Service (NOS) Products

Updated: 06/11/2025

Operational Forecast System Regions: Atlantic
Operational Forecast System Regions: Gulf of America
Operational Forecast System Regions: Great Lakes
Operational Forecast System Regions: Pacific

Additional Information

* Latest upgrade SCN

* NOS OFS Models Page

File Naming Convention

For all products:

* cc is the model cycle runtime (i.e. 00, 06, 12, 18)

* YYYYMMDD is the 4-digit year, 2-digit month, 2-digit day of the model runtime (i.e. 00, 06, 12, 18)

* HHH is the HHH-th simulation hour (e.g., 001, 002)


For each basin:

* OFS is the domain:

  * Atlantic: cbofs - Chesapeake Bay, dbofs - Delaware Bay, gomofs - Gulf of Maine, nyofs - New York and New Jersey, sjrofs - St. John's River

  * Gulf of America: ngofs2 - Northern Gulf of America, tbofs - Tampa Bay

  * Great Lakes: leofs - Lake Erie, lmhofs - Lake Michigan and Huron, loofs - Lake Ontario, lsofs - Lake Superior

  * Pacific: ciofs - Cook Inlet, sscofs - Salish Sea and Columbia River, sfbofs - San Francisco Bay, wcofs - West Coast

 

Files Available May Vary By OFS

 

Files Descriptions and Access

DESCRIPTION NCEP FTP/HTTPS SERVER NWS FTP SERVER
Nowcast and forecast, station output
  Filename
  {OFS}.t{CC}z.{YYYYMMDD}.stations.[nowcast|forecast].nc
Available in NetCDF via ftp
Available in NetCDF via https
 Not Available
Nowcast (n) and forecast (n), three-dimensional fields' output
  Filename
  {OFS}.t{CC}z.{YYYYMMDD}.fields.[n|f]{HHH}.nc
Available in NetCDF via ftp
Available in NetCDF via https
 Not Available
Nowcast (n) and forecast (n), optional two-dimensional output
  Filename
  {OFS}.t{CC}z.{YYYYMMDD}.2ds.[n|f]{HHH}.nc
Available in NetCDF via ftp
Available in NetCDF via https
 Not Available
Model input files
  Filename
  {OFS}.t{CC}z.{YYYYMMDD}.init.nowcast.nc
Available in NetCDF via ftp
Available in NetCDF via https
 Not Available
Surface meteorological forcing files
  Filename
  {OFS}.t{CC}z.{YYYYMMDD}.met.[forecast|nowcast].nc
{OFS}.t{CC}z.{YYYYMMDD}.hflux.[forecast|nowcast].nc
Available in NetCDF via ftp
Available in NetCDF via https
 Not Available
Input forcing condition files
  Filename
  {OFS}.t{CC}z.{YYYYMMDD}.[obc|clim|river].nc
{OFS}.t{CC}z.{YYYYMMDD}.river.nc.tar
Available in NetCDF via ftp
Available in NetCDF via https
 Not Available
Runtime input files
  Filename
  {OFS}.t{CC}z.{YYYYMMDD}.[forecast|nowcast].in
Available in NetCDF via ftp
Available in NetCDF via https
 Not Available
Log files
  Filename
  {OFS}.t{CC}z.{YYYYMMDD}.[corms|forecast|jlogfile|nowcast].log
Available in NetCDF via ftp
Available in NetCDF via https
 Not Available
Tides files
  Filename
  {OFS}.t{CC}z.{YYYYMMDD}.roms.tides.nc
Available in NetCDF via ftp
Available in NetCDF via https
 Not Available
Nowcast and forecast average files
  Filename
  {OFS}.t{CC}z.{YYYYMMDD}.avg.[forecast|nowcast].nc
Available in NetCDF via ftp
Available in NetCDF via https
 Not Available

 

*Inventory Disclaimer*
Actual Parameters may Differ from Those Listed

 

Page last modified: 11 June 2025.