By Karen Chenard One of my favorite and most blissful winter pastimes in Maine is cross-country skiing. I started writing this post in February when the snow was plentiful, light, and powdery—the kind of idyllic conditions that every Nordic skier hopes for. But as Mark Twain so aptly observed about New England’s ever-changing weather, “There is a sumptuous variety about the New England weather that compels the stranger’s admiration—and regret. The weather is always doing some