Gary, No rain date necessary. We sailors are a hearty lot
The Pavilion where we will be has sides to it which can be rolled down to keep us dry if necessary creating a large dry area with tables which seats over 125. Right next to the parking lot.
This was one of the original reasons we have chose to have it at MYC, just in case the weather gods didn't shine on us, people could still get together, they may just come by car.
Weather right now looks hard to figure. This far out I would say it may shower T storm Friday with a chance on Saturday then clearing as the day goes on. Sunday looks great.
I will repost driving directions.