Steve: Don't let the 40% chance of rain on Sunday worry you.
I am presuming you will have more than one *real* Cobra in your bunch (no top or working windshield wipers), so I am guaranteeing the appearance of at least one similar beast from the deep south (south bay) for breakfast Sunday in Petaluma. I just located my parka I used to raft the Colorado back in the day and once I find my Rain-X I'm ready to go. Rich