From InkStain (John Fleck):
It’s one of those milestones that’s an entirely arbitrary result of the units we use to measure, but it’s probably nevertheless worth marking: for the first time since it was filled in the 1930s, Lake Mead ended the “water year” below 10 million acre feet of storage.
The finally elevation at midnight last Wednesday, Sept. 30, was 1,078.1 feet above sea level at the big Colorado River reservoir, which holds water for use in Nevada, Arizona, California, Sonora, and Baja. That translates to an estimated 9.854 million acre feet in storage, down from 10.121 maf a year ago. That is 38 percent of capacity.