Boundary Bay is very fickle based on my almost 20 years of sailing there. It can deliver the best day of your life, but sometimes the forecast can be perfect but no wind is delivered.
If coming from a long way away make sure all forecasts are in agreement and try to leave when the wind is already blowing and it's forecast to get stronger. If on a windsurfer, a weed fin is definitely required. Even catching one strand of weed is enough to slow you down.
Based on the GFS forecast you might be in luck at 12 pm but anything can happen, 0 or 30 knots. No guarantees at all.
All details here,
viewtopic.php?f=36&t=896Thanks to C36 and others