expect plenty of rainfall throughout the bay area, the wet weather could hit the bay area hard and tara moriarty is in napa county where there is growing concern. reporter: well farmers are wasting no time they have been working around the clock for about the past week and we are at the develop yard where we have seen vin yard where we are seeing many people trying to get as many grapes off the vines before the rains come this afternoon. we have been watching them picked by a machine and they have it lit up sorting through the bunches and that s because rain is expected and once the rain hits the vin yard, it could destroy the crops. about one 5th of the grape harvest is already in. some grapes could suffer. again those rains could suffer with the second cool rain storm blowing in on wednesday and there is a silverling in all of this for wine lovers and we will tell you what it s all about coming up. right now we will check in with steve paulson. now today s system is n