Southern Idaho’s water reservoirs are well-stocked heading into the irrigation season, offering a promising outlook despite a dry and warm early spring that has accelerated snowmelt and reduced runoff. Idaho Water Supply Committee officials warned that the state may need to rely more heavily on its reservoir systems this summer. Reservoirs across the state are in strong shape: the Owyhee River system is full, and reservoirs along the Boise and Payette rivers are expected to reach full capacity. The Upper Snake system is currently 88% full while eastern Idaho’s Henrys Fork, Island Park, Ririe, and American Falls reservoirs are all between 96% and 100% full. North Idaho’s snowpack and runoff are also improved compared to last year’s low levels.