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IDAHO RESERVOIR LEVELS

January 6 2025

In Idaho, the health and levels of reservoirs and dams are critical for water management, agriculture, and maintaining local ecosystems. Recent observations indicate mixed conditions across the state's water storage systems. Notably, the storage at Little Wood Reservoir near Carey reflects a concerning drop, with current levels at 13,040 acre-feet against an average of 17,029.79 acre-feet. Similarly, the gage height at Mud Lake near Terreton has dipped to a mere 1 foot, starkly lower than its average of 3.71 feet. On the contrary, Mackay Reservoir near Mackay and CJ Strike Reservoir near Grand View are holding steady, showing gage heights very close to their typical averages.

The disparities in reservoir and dam levels may be indicative of underlying hydrological issues such as irregular snowpack accumulation or varying river flows, which are essential for replenishing these water bodies. Priest Lake at Outlet near Coolin is at an alarmingly low level of zero feet, a significant deviation from its average of 1.95 feet, pointing towards potential drought conditions. In contrast, Coeur d'Alene Lake at Coeur d'Alene and Henrys Lake near Lake are both slightly below average but maintain most of their typical water levels. These anomalies within Idaho's water storage infrastructure highlight the need for continued monitoring and potentially adaptive water management strategies to address the inconsistencies in water availability, which could be a result of climate variability or changing precipitation patterns affecting the region's hydrology.

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