Flows on Sunday were 1,600 cfs. Then on Monday the flows dropped to 1,000 cfs. After less than 24 hours flows dropped to 600 cfs.
Summer 2010 flow assessment
Today the flows at Anderson Ranch Dam were decreased by 200 cfs to the summer “normal” flow of 1,600 cfs (first graph). The salmon flow augmentation releases concluded July 15.
Trinity snowpack hangs on, then same ending
Finally some summer temperatures in southwest Idaho!
After the cool, wet May and (most of) June, the summer weather pattern is starting to take hold and the last of the mountain snow is making it way to feed Idaho’s great rivers. And on this blog we watch the upper South Fork Boise River has it has the heavy influence on the releases from Anderson Ranch Dam and the blue ribbon trout stream.
Tagged storage
Cold, wet mid May = more water later
Last weekend snow blanketed the Boise Front with 16 inches recorded at Bogus Basin. Trinity Mountain in the Upper South Fork Boise River picked up about four inches, but it’s the cool weather before and after that has kept more water stored in the mountain snow than in Anderson Ranch Reservoir.
The flows from Anderson Ranch were increased to 1,600 cfs during the week to help meet irrigation demand and this appears to have stopped the filling of Anderson Ranch because there is little snow melt in the high country.
Upward trend in run-off
And now, finally, the ascending upward trend in the run-off from the upper South Fork Boise River Basin. Flow usually peak just after Memorial Day.
Tagged flows
South Fork Partners
