From email from Reclamation (Kara Lamb):
This evening [June 6], with the snow melt run-off picking up some more, the Colorado-Big Thompson Project’s junior water rights for east slope water have come into priority. This means we can cut back on project imports from Granby Reservoir via the Adams Tunnel and pull some of the native, i.e. east slope, inflow coming into Estes into the southern power arm of the project. It also means we can pull some water from the mouth of the Big Thompson canyon and send it over to Horsetooth Reservoir. As a result, tonight (early Tuesday morning) at 2 a.m., we will reduce the release from Olympus Dam to the lower Big Thompson River by 40 cfs. That means the release will be around 905 cfs.
Also, at 7 tomorrow [June 7] morning, we will increase the inflow to Horstooth Reservoir from 381 cfs to around 515 cfs. Horsetooth has been rising steadily, but slowly. This will speed the rate of fill just a little bit.
More Colorado-Big Thompson coverage here.