Lake Powell could reach a four-year high this spring and summer as snowmelt supplements the reservoir's water levels. Lake Mead in Nevada and Arizona and Lake Powell in Utah and Arizona have suffered from a regional drought for years, and excessive water usage is slowly depleting the Colorado River faster than natural weather patterns can fill it. An above-average snowfall and excessive precipitation last spring and this winter have bolstered the water levels at Lake Powell and Lake Mead, and new data from the U.S. Bureau of Reclamation revealed that the nation's second-largest reservoir could rise by up to 50 feet by mid-summer.