W. Exception Of Some WA Watersheds, Long-Term Drought Prevails Across The Western States
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This year, though, the cycle is in disarray. Outside of the Olympic and Cascade ranges of Washington state, winter snows were subpar. The spring melt has been a dud. From the Klamath to the Colorado and Rio Grande, watersheds are under stress once again, and water managers face difficult tradeoffs between farms, fisheries, and at-home uses. The main thing being renewed is concern over the seeming inadequacy of the region’s water supply. “This is a drought emergency,” said Becky Bolinger, the Colorado assistant state climatologist.
Bolinger was referring to the latest runoff forecast for Lake Powell, a large reservoir on the Colorado River. The amount of water projected to flow into the country’s second-largest reservoir this spring and summer is 28 percent of the 30-year average. Dan Bunk of the Bureau of Reclamation said this year’s inflows are on pace to be the third or fourth lowest in the last century. Today, the lake is just 34 percent of capacity — or, looking at the math another way, about two-thirds empty. Downstream states like Arizona are bracing for mandatory cutbacks next year.
What is worrisome is that Bolinger could have been discussing any number of western watersheds. In California on Monday, Gov. Gavin Newsom expanded a drought declaration to include 41 of the state’s 58 counties. Water levels in the state’s two largest reservoirs — Oroville and Shasta — are about half of what they usually hold this time of year.
In the Klamath basin of southern Oregon and northern California, there are already lawsuits over how the Bureau of Reclamation is allocating scarce water from Upper Klamath Lake. The drought is forcing the federal agency to balance the needs of endangered fish species both upstream and downstream. It told farmers in the upper basin to expect very little irrigation water this summer. In New Mexico, water managers say the Rio Grande through Albuquerque could run dry this summer, which would complicate efforts to protect the endangered silvery minnow.
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https://www.circleofblue.org/2021/world/extremely-dry-conditions-spill-across-the-american-west/
