California's Central Coast may have lost up to 50% of its grape crop after one of the worst spring frosts in history. With freezing temperatures between 8-10 April, initial estimates indicate a 30-50% crop loss, according to the Paso Robles Wine Country Alliance. 'The length of time temperatures were at or below freezing on April 8, 9 and 10 was the greatest the region has experienced in the last 10 years,' Stacie Jacob, the Alliance's executive director said. 'Although growers have a wide array of best management practices, which were fully executed, Mother Nature was in full control,' she added. Many earlier varieties like Pinot Noir and white grapes were affected. According to the Western Farm Press, some vineyards may not have a single crop to harvest this fall due to the frost.