Lancaster, Penn.—Tornadoes by the hundreds; rain by the foot. What’s going on here, and what does it mean for the grape crop in the East? Extreme weather has dominated the headlines for most of the spring. More than 1,000 tornadoes have torn through the midsection of the country and parts of the East. Floods have inundated the Mississippi River region. The month of April was the wettest month on record in many areas: 13.52 inches of rain drenched the Cincinnati area. In Erie County, Penn., about twice the average amount of rain fell during May.