West Wall of the Gulf Stream Average Positions

The 100 fathom line is sometimes used to approximate the west wall of the Gulf Stream. The following table lists the distance to the 100 fathom line from selected locations:

Ponce Inlet
Port Canaveral
Sebastian Inlet
Ft. Pierce
St. Lucie Inlet
44 nm
35 nm
30 nm
21 nm
13 nm

Note: The NWS west wall positions in the Coastal Waters Forecast are based on satellite derived Sea Surface Temperatures and often reflect warm eddies intruding onto the Continental Shelf.


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.