Explanation of a Chart Comment

[Peter J]

On the Chart by Durleston Head it says "Race on the SW-going stream"

What does that mean?

It is that is gets a bit lumpy if the wind is in the SW and the tide is going out?

Peter.

[Simon B]

See what a tidal stream atlas of the area says, I should imagine it will be when the tide is heading that direction likely on springs. So expect overfalls/standing waves etc

[rbw156]

It means that you should expect over falls when the tide is running SW. These over falls will be bigger on spring tides and also with wind against tide. I'd avoid areas like this as any breaking wave is dangerous, especially when the wave height exceeds a third of your boat length.