2010 Lake Level Forecast
The following graph shows the US Bureau of Reclamation's forecast for lake elevation at the 90% confidence level
(dark blue) and the 50% confidence level (light blue).
Last year, the 50% confidence level was
quite accurate. Lake outflow determinations are based upon the 50% confidence level.
Below the
chart are lake storage volumes that equate to the lake elevations in the graph.
View current lake storage...
Click on graph for full size version.
Corresponding acre-feet to ramp bottom elevation:
- 2,378' (Highest elevation on record, 1/19/74) 2,588,335 af
- 2,370' (Full lake) 2,447,700 af
- 2,338' (Stuart Fork ramp) 1,957,780 af
- 2,324' (Clark Springs ramp) 1,765,410 af
- 2,323' (Bowerman ramp) 1,751,280 af
- 2,313' (Fairview ramp) 1,621,240 af
- 2,295' (Trinity Center ramp) 1,403,878 af
- 2,243' (Water Year 2010 low water mark Dec 2009) 894,338 af
- 2,230' (Cedar Stock ramp) 794,700 af
- 2,170' (Minersville ramp) 424,340 af
- 2,120' (Lowest elevation on record, 11/9/77) 222,350 af
2010 River Release Hydrograph
This is the scheduled flow hydrograph for 2010. This year was declared a "normal" water year,
and that means some 647,000 acre-feet of water will be sent down the river for the restoration project.
For a high-resolution PDF copy of this graph, click here.
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