Rain And Snow Spell Relief For Great Lakes
Twice as much autumn rain and early winter ice helped Lake Superior, the biggest of North America's Great Lakes, bounce back from record low water levels reached last year. The deep, cold lake on the Canada-US border -- the largest freshwater body of water in the world by surface area -- rose about 31 cm (1 foot) in seven months, with half of that in April alone as the spring thaw melted heavy winter snowfall that arrived late in the season.