The reservoir east of Las Vegas is expected to reach a new record low this weekend and continue downward another 7 feet through June, as the drought-stricken Colorado River withers from its 12th dry year since 2000.

The latest projections by the U.S. Bureau of Reclamation call for the new record to arrive sometime after midnight Sunday, when the surface of Lake Mead dips below the current low-water mark, set on Aug. 13, 2014, of 1,080.19 feet above sea level.

The last time Lake Mead was this low was May 1937, the same month as the Hindenburg explosion. The reservoir then was filling for the first time behind the new Hoover Dam.

The bleak new milestone comes as federal forecasters slash their projections for how much water will make its way into the Colorado River in the coming months, as snow melts away in the mountains of Utah, Colorado and Wyoming.