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Snowpack conditions as of early January were 40% to 70% below normal in the upper Colorado River basin, officials with the National Oceanic and Atmospheric Administration said Monday, and there ...
Despite those and other predictions of an impending shortage determination by 2020, snowpack of 140% of average in the Upper Colorado River basin as of April 2019 resulted in 128% above average inflow into Lake Powell, resulting in 1,090.20-foot (332.29 m) water level on Lake Mead.
The long-depleted Colorado River is getting a boost from the largest snowpack since 1997. Rising reservoirs offer some relief amid talks on needed water cuts.
The snowfall in that early-February storm had helped winter snowpack in the Upper Colorado River Basin to a good start, around 130% of normal for the date, he noted. “We need 200%,” he said.
The San Juan River is a major tributary of the Colorado River in the Southwestern United States, providing the chief drainage for the Four Corners region of Colorado, New Mexico, Utah, and Arizona. Originating as snowmelt in the San Juan Mountains (part of the Rocky Mountains) of Colorado, it flows 383 miles (616 km) [ 2 ] through the deserts ...
The Upper Basin covers only 45 percent of the land area of the Colorado River Basin, but contributes 92 percent of the runoff. [57] The entire eastern boundary of the Colorado River Basin runs along the North American Continental Divide and is defined largely by the Rocky Mountains and the Rio Grande Basin.
Lake Powell is a water storage facility for the Upper Basin states of the Colorado River Compact(Colorado, Utah, Wyomingand New Mexico). The Compact specifies that the Upper Basin states are to provide a minimum annual flow of 7,500,000 acre-feet (9.3 km3) to the Lower Basin states (Arizona, Nevada, and California).
According to the Colorado SNOTEL map maintained by the U.S. Department of Agriculture’s Natural Resources Conservation Service, the San Miguel-Dolores-Animas-San Juan rivers basin in southwest ...