From the Bureau of Reclamation:

“As of May 4, 2023, the Fontenelle Reservoir pool elevation is 6475.71 feet, which amounts to 41 percent of live storage capacity. Inflows for the month of April totaled approximately 75,085 acre-feet (af) or 89 percent of average.

Ice along the Green River has thawed, and spring releases have started. Releases from the dam will increase throughout spring to meet elevation targets. Per the May final forecast, maximum total release rates are forecasted to occur in late June at approximately 5,000 cfs, subject to hydrology.

The May final forecast for unregulated inflows into Fontenelle for the next three months projects above average conditions. May, June, and July Most Probable inflow volumes amount to 240,000 af (137 percent of average), 335,000 af (109 percent of average), and 180,000 af (107 percent of average), respectively.

Please refer to the following link for Green River flow projections, through Green River, WY, provided by the Colorado River Basin Forecast Center: CBRFC Green River, WY Projection

To view the most current reservoir elevation, content, inflow and release, click on: Fontenelle Reservoir Data.”

What this means:

Releases from Fontenelle Reservoir are currently at 4,690 CFS. Water temps are around 48.7 degrees Fahrenheit. Snowpack in the Upper Green River Drainage is currently at 87 percent of normal. Snowpack in the Lower Green River Drainage is currently at 122 percent of normal.

Fishing has been slow lately, but as water temperature rises the fishing should begin to pick up.