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Tijuana River Plume Trajectories

For purposes of tracking flow from Tijuana River, the trajectories are only relevant when the river is both flowing and open to the ocean. This display is not designed determine water quality measurements at the coast. For beach closures, please see the Beach Report Card.

Tijuana River Flow Rate

Latest Observations 24hr Maximum 24hr Minimum
0.00 cm/s 0.00 cm/s 0.00 cm/s
1970-01-01 00:00:00 UTC 1970-01-01 00:00:00 UTC 1970-01-01 00:00:00 UTC
MGD = Millions of gallons per day. cm/s = Cubic meters per second.
Values in red indicate the data is greater than 24 hours old. Otherwise values are displayed in black.

Tijuana River Plume Trajectories

Start Animation

An animated gif has been created as an alternative to this animation sequence.

Particle Tracking Plot
Particle Tracking Plot, Zoomed
Contour Plot by concentration and coastal distance

See the article about us in the Union Tribune, " Huge waves at the Tijuana Sloughs are tempting, but dangerous Surfing" (2007-01-02) by Brad Melekian.

How are trajectories calculated?

This display shows the results of a particle tracking algorithm applied to hourly surface currents of water flow just offshore Tijuana River. On an hourly basis, 100 particles are released at the rivermouth and tracked for a 3 day period to provide a better estimate of where the Tijuana River plume (when flowing) may be impacting the coast. New positions within the region are updated hourly and the color of the particle represents the age of the particle since it was released. Example animations are available from CORDC Documents.

These graphical displays are intended to be experimental. While considerable effort has gone into ensuring the highest quality data, significant differences between measured currents and actual currents can occur. This information should not be used to make any navigational or other decisions that might endanger public safety or put anyone at significant risk. We reserve the right to ADD, CHANGE or DELETE any product WITHOUT PRIOR NOTICE.

SoCal Map