Large swell to impact coast this weekend

Probably everyone knows we have a very large swell inbound for the weekend.  Should see super long period forerunners late Friday night into Saturday  - we're talking energy 5-6ft deepwater in the 25-27 sec band - quite high and unusual.  That type of energy will really jump when it shoals on Bay Area beaches.  Saturday, size will continue up all day - afternoon 8-10 ft deepwater - 18-20 seconds - maxing Sunday at 15-20 ft, long periods and long lulls, since the swell source was very far away.  Conditions should be close to perfect with light to variable/offshore winds as high pressure camps out over the Western US. Good conditions will continue into the early part of next week.  Cya in the water.