At Fishing Bay Yacht Club, the year 2011 will probably be remembered as the year the tornado wiped out numerous trees and more than 20 buildings in Deltaville the day of the Club’s Opening Day ceremonies in April. In July, the scars left behind by that event are still plainly evident, and the week preceding Leukemia Cup was notable for a humid and unstable air mass that hung over southeastern Virginia all week, delivering daily thunderstorms. Though the torrential downpour on Friday turned the grassy parking area at regatta headquarters into a morass (in places, a pond), a front passed through the area Friday night, and by Saturday morning, the weather had cleared, with clear skies and light to moderate …