Winemakers in Napa Valley are breathing a sigh of relief this week.  There has finally been a reprieve in the weather that has been blistering through Northern California.  However, I send my sympathies to our winemaking friends in Sonoma County where “all bets are off” and winegrowers and winemakers have been out picking Pinot Noir and Chardonnay grapes over the last eight to ten days like it was the last harvest before Armageddon.  So what has happened the last two weeks?  As I mentioned in my previous post, it has been hot.  The weather stations at the vineyard have recorded eight 100+ degree days over the last 14.  The heat has caused many to scramble to irrigate vines and sample grapes for ripeness to determine ideal harvest dates.