The California 2015 vintage is turning up as one to seek out due to it's scarcity. Keep an eye on your favorites and snag them. It's great juice.
From 2012 -2014 there was very little rain. Vines eventually get weary by drought and pumping out three substantial vintages in a row. What occurs is the berries are smaller and quantity produced is less. Such is the California 2015 vintage. The earliest harvest in years. This production was most noticeable in Pinot Noir and Chardonnay volume. These small crops ripened in a hurry.
Hence, the low yields have resulted in extraordinary concentration and intensity and the wines may be able to compete with the extremely successful 2013 vintage (2012 was special too).
The 2015 quality is very high but the quantity is low. So, keep an eye out for them at the store.
It will be interesting to follow this vintage over next 5-7 and beyond.