The exceptionally heavy and much-appreciated rains seen in California this winter have people through the region feeling as though California’s recent drought is at least temporarily over. While vineyards throughout the lower-lying areas of California’s North Coast were under water in places, vines were dormant and there should be no negative effect during the growing season. On the positive side, water stores are refilled, and the aquifer is presumably at least partially replenished. Most of all, vines have access to natural groundwater in the soils again, which is a benefit as it serves overall vine health more readily than irrigation...