#LakeMead ends 2017 not in shortage — @JFleck #ColoradoRiver #COriver

Lake Mead December 2017. Photo credit: Greg Hobbs

From InkStain (John Fleck):

Lake Mead ends 2017 at elevation 1,082.5, almost two feet above last year at this time. Lake Powell ends the year at 3,623, up more than 20 feet from a year ago. Combined storage in the two primary Colorado River reservoirs ends the year up more than 2 million acre feet.

This is in part the result of a good snowpack in the winter of 2016-17, but is more than that. Excess runoff into Powell this year from that snowpack was 1.14 million acre feet. The only way you get from there to an increase in storage of 2 million acre feet is by using less water. And that is perhaps the most remarkable piece of Colorado River news as we end 2017.

In the lower basin states of Arizona, Nevada, and California, this year’s preliminary estimate of total use – 6.77 million acre feet – is the lowest since 1987.

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