In Idaho, current reservoir and dam observations indicate varying conditions across major water storage systems as of the last observation on April 26, 2025. Priest Lake is notably below its average gage height, with a current measurement of 1 ft against an average of 1.92 ft, suggesting potential issues with inflow or increased demand. Conversely, the Coeur d'Alene and Henrys Lake have slightly exceeded their average gage heights, indicating healthy storage levels. Noteworthy is the Salmon River Canal Co Reservoir near Rogerson, showing a significant gage height increase to 29 ft from its average of 25.05 ft, and Mackay Reservoir near Mackay with a current gage height of 57 ft, well above the average of 44.73 ft. Mud Lake near Terreton also shows an increase from an average of 3.6 ft to 6 ft. However, Little Wood Reservoir near Carey is experiencing less water than usual with a current storage of 13,380 acre-feet against an average of 17,024 acre-feet. Other reservoirs like Milner Lake, CJ Strike, and Payette Lake are relatively close to their average measurements.

These irregularities may be linked to regional snowpack conditions and river flows. According to KSL News, the snowpack in the Western US has been near-normal, which might typically lead to average reservoir levels. However, localized variations can occur due to differences in watershed characteristics and water management practices. For instance, the elevated levels in some reservoirs could be due to controlled releases to manage flood risks or accommodate anticipated snowmelt. The lower water levels in places like Priest Lake and Little Wood Reservoir could be related to reduced snowpack in specific catchments, higher water usage, or operational changes at the dams. Understanding these conditions is crucial for water resource management, especially for agriculture, which relies heavily on consistent water supply, and for maintaining ecological balance in the state's waterways.