![]() ![]() More rain is expected to come later this week with the arrival of a second atmospheric river slung off from a bomb cyclone over the Pacific. lBSUTqgkIP- Colin McCarthy December 30, 2022 Widespread snow totals of 100+ inches are expected above 8,000 feet in the Sierra, with 6-12" of rain in NorCal and 3-6" in SoCal. Lake Mead has not been positively affected by these storms, however, as they are fed by the Colorado River stretching to the east.ģ significant atmospheric rivers will batter California over the next 10 days, putting a sizeable dent in the ongoing severe drought. The most rain that fell within 24 hours in the city occurred in November 1994, when 5.54 inches were recorded.īetween December 27, 2022, and January 3, 2023, Lake Oroville, which is north of Sacramento and is the largest reservoir in California, had its water level rise from 676.54 feet above sea level to 713.56 feet. This marks the second wettest day in over 170 years. Parts of California have seen unprecedented rainfall in the past week, with 5.46 inches of rain falling in a single day in San Francisco on December 31. However, the heavy rainfall currently battering California may help offset the effects of the dry 2022 season. As of July 18, it was filled to just 27 percent of its full water capacity. In 2022, Lake Mead dropped to the lowest water levels seen since it was created in 1935. Lake Mead, a reservoir of the Colorado River on the border of Arizona and Nevada, provides water to 25 million people in California, Nevada and Arizona. ![]() Such was the case in water year 2022 (October 1, 2021, to September 30, 2022), Bales said, "resulting in very reduced deliveries of irrigation and municipal water during the dry season."Ī sunken boat, pictured this past September at Lake Mead, reemerged after unprecedented drought reduced water levels. In drier years, that may not fill all of their water-supply storage capacity." He continued: "In wetter years, such as water year 2017, they will store as much winter/spring runoff as they can for water supply, while still leaving some space for flood control in case of heavy rainfall. "They store winter and spring rainfall and snowmelt, releasing that stored water during the summer growing season for irrigation and for municipal use. "Reservoirs, mainly dams at the mountain front, provide seasonal storage for water supply, in addition to storage to reduce downstream flooding," Roger Bales, a water and climate engineer at the University of California, Merced, told Newsweek. Want to know why heavy rainfall isn't enough to solve California's drought crisis? Check out Newsweek's in-depth explainer Recent rainfall in Northern California may help refill many of the state's reservoirs. Stock images show rainfall and a drought-parched lake. ![]()
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