Rich,
I don't have a count from the North Bay folks but we have about 12-15 who said they are coming.
I see 30% change of precip with "few showers". Seems we go through this weather issue anytime there's a chance of rain.
When we were coming back from BACC-Santa Barbara earlier this year, the forecast was 60% rain in San Jose, we actually got a few light showers in Paso Robles and stayed dry all the way home. Point is it's not an accurate science and "showers" means that somewhere in the area someone might get a little wet.
Remember 30% chance of precip means 70% chance it will stay dry
Mike