This is why I'm going out with locals, to try to learn what wave forecasts equal acceptable diving conditions. I have been using your website to monitor conditions. Great resource! I understand that if its coming in due west it will come right into BW... but what swell height/ period = ok for diving?
Excellent question. I don't have the answer, but I posed a similar question and received great responses.
http://www.scubaboard.com/forums/norcal/319340-interpreting-coastal-forecasts.html