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St. John's River Operational Forecast System (SJROFS)

Updated on March 13, 2014: CO-OPS is planning to turn off OPeNDAP services on the NOS OFS web pages on April 23, 2014. Please use the THREDDS URL and change your scripts if needed.

Updated on February 2014

  1. CO-OPS will update the URLs for all SJROFS map animation plots on March 5, 2014. Please visit the SJROFS main page on 3/5 and update your SJROFS animated map plots bookmarks.
  2. SJROFS forecast horizon was extended from 24 hours to 48 hours. Time series plots show 48 hours forecast guidance.
(Please click on the map pins below to access the time series plots)

Tide Icon
Water Level
Winds Icon
Water Temperatuer Icon
Water Temperature
Salinity Icon
Currents Icon
(Please click on the categories below to access animated map plots)
Nowcast Forecast Guidance Nowcast Nowcast Stations Nowcast
Forecast Guidance   Forecast Guidance Forecast Guidance Stations Forecast Guidance
        Field Nowcast
        Field Forecast Guidance

Special Notice

To be consistent and standardized for all NOS OFS, the SJROFS model output file names will be changed on January 26, 2011. The new file names will be:

YYY is year; MM is month, DD is date, HH is cycle
Please update your scripts accordingly, if you automatically download SJROFS model outputs.

where YYYY is year, MM is month, DD is day, and HH is cycle.

On October 1, 2005, NOAA's National Ocean Service (NOS) inaugurated the St. John's River Operational Forecast System (SJROFS). This system provides the maritime community with improved short-term predictions of water levels and currents in St. John's River.

SJROFS is a CO-OPS project aimed at providing improved predictions of water levels and currents in St. John's River. The objective of SJROFS is to produce hourly nowcasts and four times daily forecasts of total water level and current velocity in the River to be used by the commercial and recreational maritime community. SJROFS will provide important benefits to the local maritime community. SJROFS nowcasts and forecasts will provide an increased margin of safety and maximize the efficiency of maritime commerce throughout the Bay. SJROFS became continuously operational on September 30, 2005. SJROFS is a NOS joint project combining the efforts of CO-OPS and CSDL. For more information, click here.

The St. John's River Operational Forecast System (SJROFS) has been implemented by NOAA's National Ocean Service (NOS) to provide the maritime user community with short-term predictions of water levels, water currents, water temperatures and salinity of the St. John's River. SJROFS uses a numerical hydrodynamic model to generate the nowcast and forecast information; therefore, they should be considered as model-generated nowcast and forecast guidance. For more detailed information related to the OFS disclaimer, please visit at the Disclaimers web page.

Revised: 10/15/2013
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services