At first light on Tuesday, workers began bringing the first grapes of harvest 2019 -- 17 tons of Pinot Noir from Rogers vineyard in Yountville for Mumm Napa Valley.

Sparkling winemakers kick off the harvest in the valley, followed by white wine grapes, which will be mostly harvested by the end of August. The Cabernet Sauvignon harvest will likely begin in mid-September.