U.S. Bureau of Reclamation

Five-Year Probabilistic Projections of future conditions in the Colorado River system currently extend through 2027. They are typically updated every January, April, and August, while probabilistic results for the 2-year period are updated every month. The 5-Year Probabilistic Projections are generated using the Colorado River Mid-Term Modeling System (CRMMS) in Ensemble Mode.

The decision is to adjust the 2007 Interim Guidelines for Lower Basin shortages and coordinated operations of Lake Powell and Lake Mead as described under Section IX of this 2024 Near-term Colorado River Operations ROD.

This Record of Decision (ROD) constitutes the Department’s final decision after facilitating, analyzing, and considering public input over the past two and one-half years, during which the ongoing drought continued to focus nationwide attention on the Basin.

It being agreed that a three-party memorandum should be utilized to give guidance to officials and personnel having responsibilities for managing lands withdrawn for Salt River Project Reclamation purposes within Forest Service boundaries.