Yep, that picture looks the part !
We never get such high waves over here, but then again we never get long waves neither. By most standards we get relatively modest wave heights but with wavelengths of only 10 mtrs or less (2 boat lengths or less) therefor they are really close to one another and steep. The result of it being a rather shallow body of water which is still (by far) large enough to cause significant disturbance of the water surface.
Will there be a significant F18 segment at the next Tybee you think. That would be fun/interesting to see. I'm still hoping that the F18 segment in tybee will attract more international sailors to this event.
Wouter