For folks from Northern Arizona, one of the big questions from recent years is whether or not the Castle Rock Cut is open. As of Friday, the water level, at 3611.74 feet, was 3.74 feet above the absolute minimum usable level, and just under the 3612 feet safe usable level. With the water level rising about a quarter of a foot per day, lake level should allow for safe passage this weekend. Again, this season’s levels will rise similar to last year.
I’d like to thank MN for putting me on the path to finding this link to more detail about estimated lake levels for this summer. Bureau of Reclamation – Glen Canyon/Lake Powell
Here is their future water level outlook. Visit their site for the deeper technical details.