Humboldt Bay crab question

I was thinking about a trip to the coast next week for some crab before the commercial season starts.  I checked the weather and saw rain is predicted most of next week.  How much rain does it take to cause the crabs to leave the bay and migrate back out into the ocean?  With the incoming rain I am torn between the bay or just heading up to Trinidad.  I was also thinking of soaking some squid for sharks or a late halibut, but it may be too late in the year for that.

The reason I ask is if I fish the bay I may take the jet boat over to take a few friends out and run more pots, if Trinidad then it will be off of the kayaks.

Thanks!