From the Bureau of Reclamation:

“As of December 03, 2025, the Fontenelle Reservoir pool elevation is 6486.95 feet, which amounts to 59 percent of live storage capacity. Inflows for the month of November totaled approximately 37,097 acre-feet (af) or 89 percent of average.

Current releases are 800 cfs. This release is expected to remain constant throughout the winter base flow period, pending significant hydrologic changes or emergencies. The winter base flow is typically from mid-November to mid-March, pending icing conditions on the Green River downstream of the dam this coming spring.

The December final forecast for unregulated inflows into Fontenelle for the next three months projects below average conditions. December, January, and February Most Probable inflow volumes amount to 28,000 af (88 percent of average), 23,000 af (76 percent of average), and 21,000 af (74 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..”

What this means:

Water releases from Fontenelle Reservoir are currently around 850 CFS.

Brown trout are currently spawning on the entire Green River system. Please be mindful of spawning fish to ensure the future of the fishery.

There are currently less weeds than normal for this time of the year on the Wyoming Green due to a spike in river flows to 5,600 CFS in early November. Fish are beginning to move into their winter holding lies. Look for trout in deeper, slower runs. The streamer fishing has been more productive than usual this Fall due to the lack of moss in the water. I have found ginger, white, gold, and black to be the best colors lately.

Current snowpack in the Upper Green River Drainage is sitting at 90 percent. Snowpack in the Lower Green River Drainage is sitting at 80 percent of normal. Current water year to date precipitation in the Upper Green River Drainage is 116 percent of normal. Current water year to date precipitation in the Lower Green River Drainage is 107 percent of normal.