Mono Lake rarely rises in August, but thanks to the still-large unmelted snowpack and the still-high flows in the creeks—and perhaps a few thunderstorms—we could easily see the lake as high or higher on September 1st, something that hasn’t happened since the wet periods 1998, 1995, and 1982–1983–1984.
http://www.monolake.org/today/2011/08/03/intense-thunderstorms-keep-mono-lake-rising-fast/