Here is an interesting article to explain the rising water level you see in the graph above . . .
https://www.msn.com/en-us/weather/topstories/lake-mead-is-finally-rising-again-here-s-why/ar-AA10Y54X?cvid=f00851c74a0749fe9fdcc3e49b7ac817
“ WHY IS IT RISING?
One of the most common questions when talking about the water level at Lake Mead is speculating why the lake is rising. The prevailing thought is because of the recent monsoonal flow that has brought rain to the area for almost four weeks.
While this has added to the lake level it’s not the only reason according to the Bureau of Reclamation.
“Recent storm events and runoff into the tributaries that enter Lake Mead as well as reduced releases from Hoover – due to a decrease in downstream demand – are the leading cause for the recent increases in Lake Mead’s elevation,” Bureau of Reclamation Public Affairs Officer Michelle Helms told 8 News Now. Helms added that as of Aug. 19 there are no significant changes to operations at Glen Canyon Dam.”