Flaming Gorge Reservoir Storage

Current Status: 2.73 million acre-feet (af) — 14% below the 5-year median Last Updated: 2026-07-07

Overview

Flaming Gorge Reservoir, located in the Green-Colorado basin on the Utah/Wyoming border, is currently tracking 13.7% below year-ago levels and showing a downward seasonal trend. The week-over-week decline is modest (-0.7%), but month-over-month drawdown (-3.3%) and annual deficit (-13.7%) indicate tighter supply conditions in the Green River system compared to recent years.

Trend Summary

• This week: Slight decline of -0.7% from 2.75M af — normal summer drawdown pace
• This month: -3.3% drawdown from peak-month levels (2.82M af in early June)
• Year-over-year: Significant deficit of -13.7% vs. 3.16M af at this time last year
• Long-term baseline: Currently 14% below the 5-year median, reflecting sustained drought stress in the upper Colorado River basin

Context

At 2.73M af, Flaming Gorge is in the lower-normal range for early July. The year-over-year gap reflects above-average 2025 (benefiting from winter snowpack) and current-year lower precipitation / higher upstream demand. Watch for further decline into late summer if inflow from snowmelt diminishes faster than typical.