HEYBURN, Idaho – The Bureau of Reclamation will host an annual informational meeting to present streamflow forecasts and projected reservoir operations for Jackson Lake Dam and other upper Snake River reservoirs on Thursday, May 18. In-person and virtual options are offered.
The meeting will focus primarily on the runoff forecast, water supply outlook, river flow management, and snowpack conditions. The runoff forecast for the Snake River near Heise, Idaho, is 96% of average, and the current storage in Jackson Lake is at 36% of capacity.
Precipitation accumulation in the Snake River headwaters watershed above Palisades Dam has been just above average this year. The current water year to date precipitation is at 96% of average in the Snake River headwaters watershed.
With the current snowpack, the potential for flooding along the Snake River in Teton County related to Jackson Lake Dam releases and inflows from downstream tributaries is low. The tributaries may experience high flows; therefore, caution is advised in these areas during the snowmelt season. Flood operations are determined by a forecast coordinated by the U.S. Army Corps of Engineers and Reclamation. Flooding potential will be discussed in the meeting.
Current river and reservoir data are available at https://www.usbr.gov/pn/hydromet/uppersnake/ .
Meeting details:
When: Thursday, May 18, 2023
Location: Teton County Library, Ordway Auditorium, 125 Virginian Lane, Jackson, Wyoming.
Time: 3 p.m. Mountain Time
Virtual attendance link: Click here for the meeting link
Meeting ID: 226 896 080 914
Passcode: 3nUCHh
Or call in (audio only): +1 202-640-1187, 43202417#
Phone Conference ID: 432 024 17#
Jackson Lake Dam is located on the Snake River within Grand Teton National Park near Moran, Wyoming. The dam is part of the Minidoka Project and was originally constructed in 1911. Parts of the dam were later replaced in 1989 under the authority of Reclamation’s Safety of Dams Act.
Original source can be found here