Wyoming’s water managers continue to monitor reservoir storage as the state endures a prolonged drought. Data released by the Wyoming Climate Office shows that most major reservoirs are holding between 68% and 86% of their designed capacity, providing a modest buffer for agricultural, municipal, and recreational needs.
Current Reservoir Statistics
According to the agency’s August update, the following figures apply:
- Seminoe Reservoir: 760,332 acre‑feet of water, roughly 74.7% of its 1,017,273‑acre‑foot capacity.
- Pathfinder Reservoir: 916,896 acre‑feet, about 85.7% of its 1,070,000‑acre‑foot capacity.
- Alcova Reservoir: 157,306 acre‑feet, or 85.3% of its 184,405‑acre‑foot capacity.
- Keyhole Dam and Reservoir: 86,813 acre‑feet, approximately 68.7% full.
- Buffalo Bill Dam and Reservoir: 529,305 acre‑feet (capacity percentage not disclosed).
These numbers indicate that while some facilities, such as Pathfinder and Alcova, are nearing full storage, others like Keyhole remain below the 70% threshold. Overall, the major North Platte system reservoirs are reported to be between 70% and 80% full, a level described by the Climate Office as “stable‑to‑moderate.”
Historical Context and Drought Trends
Wyoming ranks as the fifth driest state in the nation, and drought has been a recurring challenge for the region. The Climate Office notes that the intensity of the current drought has fluctuated over the past decade, with periods of relief in 2008, 2014‑2015, and brief improvements in 2012. However, recent assessments show a return to severe and extreme drought conditions across much of the state.
Water managers routinely transfer water between sites to maximize storage and meet downstream demands. This practice explains why reservoirs such as Pathfinder and Seminoe, located in central Wyoming, may appear lower on the map while Alcova, situated further south, shows higher levels.
Implications for Residents and Agriculture
Stable reservoir levels help sustain irrigation for farms, support municipal water supplies, and maintain recreational opportunities like fishing and boating. Nonetheless, the continued presence of severe drought underscores the need for prudent water use and ongoing monitoring.
Local officials encourage residents to stay informed about water restrictions that may be enacted during peak demand periods. The Wyoming Climate Office’s online GIS platform provides real‑time updates on reservoir status, allowing stakeholders to plan accordingly.
Looking Ahead
As the summer progresses, officials will keep a close eye on precipitation trends and snowpack melt, which are critical drivers of reservoir replenishment. Continued collaboration between state agencies, water districts, and private landowners will be essential to navigate the challenges posed by a changing climate.
For the most current reservoir data, visit the Wyoming Climate Office’s website or consult the state’s GIS portal.
Original reporting: K2 Radio (Casper) — read the source article.
