Columbia River Estuary Operational Forecast System (CREOFS)

Notice of NOS OFS product changes

Effective on or about August 2024, the names of the model output files will officially be transitioned to the following format:

  • Stations: OFS.tCCz.YYYYMMDD.stations.[nowcast|forecast].nc
  • 2-D surface field output: OFS.tCCz.YYYYMMDD.2ds.[n|f]
  • 3-D field output: OFS.tCCz.YYYYMMDD.fields.[n|f]
  • 3-D field output on a regular grid: OFS.tCCz.YYYYMMDD.regulargrid.[n|f]
  • Where:
  • OFS refers to the name of the model (e.g. cbofs, sfbofs, leofs)
  • [nowcast/forecast] or [n/f] denotes either the nowcast or forecast results
  • YYYYMMDD refers to the date of the model run
  • CC refers to the cycle of the day (e.g. 06, 12)
  • HHH is the nowcast or forecast hour (e.g. 001, 002)

Starting April 1, 2024, model output files with both the existing and the new file formats will be made available here for users to update and test code used to automate the download of the model output. As August 2024 draws near, this notice will be updated with the exact date of the transition.

(Please click on the map pins below to access the time series plots)

Each of the blue icons represent a different CREOFS subdomain. Click on an icon to open the main web page of that subdomain.

A Columbia River Estuary Operational Forecast System (CREOFS) has been developed to serve the Oregon and Washington maritime communities. CREOFS was jointly developed by the Oregon Health & Science University (OHSU), the NOAA/National Ocean Service's (NOS) Office of Coast Survey and Center for Operational Oceanographic Products and Services (CO-OPS), and the NOAA/National Weather Service's (NWS) National Centers for Environmental Prediction (NCEP) Central Operations (NCO). The NWS and NOS work together to run CREOFS operationally on NOAA's High Performance Computing System (HPCS). By running on NOAA's HPCS, CREOFS has direct access to National Weather Service operational meteorological products that are required for reliable operations. As its core ocean prediction model, CREOFS uses the Semi-implicit Eulerian-Lagrangian Finite Element (SELFE) model, which was also developed at OHSU.

CREOFS provides users with nowcast (analyses of near present) and forecast guidance of water levels, currents, water temperature, and salinity out to 48 hours, four times per day. The CREOFS model domain is also divided into five separate subdomains (Upper Columbia River , Middle Columbia River, Lower Columbia River, Columbia River Bar Entrance, and the mouth and offshore of the Columbia River), allowing users to focus on their area of interest. Animation maps of each of the five subdomains as well as time series at particular stations or points of interest are available at over 40 locations for winds, water level, currents, temperature, and salinity.

CREOFS is based on a three-dimensional, high resolution model. With the added reliability of running at NOAA's HPCS, CREOFS will assist U.S. port authorities and mariners to efficiently navigate the Columbia River without compromising safety.

For more detailed information about CREOFS, please click here.

For more information about SELFE, please click here.

The CREOFS model provides forecast guidance for water levels, currents, water temperature, and salinity within its domain. For the official NOAA water level forecast from the National Weather Service's Northwest River Forecast Center, please click here.