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Worsening Dry Spell Won’t Tip Lake Mead Into Shortage — Yet

An already dry winter for the Colorado River has gotten worse in recent weeks, but it won’t be enough to send Lake Mead to a record low — at least not right away. Despite worsening conditions in the mountains that feed the Colorado, forecasters still expect the reservoir east of Las Vegas to contain just enough water by the end of the year to avoid a first-ever federal shortage declaration. A month ago, the Colorado River Basin was on track for its seventh-driest winter in more than half a century.

California Was In For One Of The Driest Winters On Record. Then March Happened

Heavy rain and snow is in the forecast for California this week including local areas that are at risk of mudslides because of recent wildfires. But there is an upside. All that precipitation is chipping away at a snowpack deficit in the Sierra Nevada mountains – the source of one-third of the state’s drinking water supply. December, January and February were unusually hot and dry. But March has been a different story. Since the beginning of the month, the Sierra snowpack has gone from 23 percent to 48 percent of average in terms of its snow to water equivalent.

Atmospheric River May Dump Up To 4 Feet Of Sierra Snow In What Could Be The Last Big Storm Of The Season

An atmospheric river is predicted to dump more rain on Southern California and the Central Coast than any other storm this year, and is expected to drop up to 4 feet of snow in the Sierra Nevada and 2 inches of rain in Sacramento before dissipating over the weekend. The National Weather Service expects a weak preliminary storm to hit Tuesday afternoon. Light rain and snow above 5,000-6,000 feet elevation is expected before a short break Wednesday morning, followed by a second system’s arrival that afternoon.

Giant Storage Batteries Help San Diego County Water Authority Cut Costs

The San Diego County Water Authority will save approximately $100,000 annually with commercial-scale storage batteries recently installed at the agency’s Twin Oaks Valley Water Treatment Plant near San Marcos. The energy storage system is designed to reduce operational expense at the facility by storing low-cost electricity for use during high-demand periods when energy prices increase. The batteries were installed at no charge as part of an agreement with Santa Clara-based ENGIE Storage. The system charges from either the electric grid at times when rates are low, or from some 4,800 solar panels at the treatment plant.

Nature Hits It Out Of The Ballpark With Rain, Snow

Nature bats last and the weather in March is hitting a grand slam for the outdoors. The latest storms to sweep across the Bay Area, Sierra Nevada and Northern California are a game changer for the snowpack, reservoir levels — and the imminent blossoming of spring across the parklands and greenbelt in the Bay Area. In a two-week span, the bottom of the ninth for winter, the storms arrived in time to transform the prospects for camping, hiking, boating, fishing and wilderness for the spring and summer recreation season.

Fellow Californians, Keep Your Hands Off My Lake

Stay away from my lake, Californians. It’s too important, for the likes of you. Yes, as a legal matter, I don’t own Lake Mathews. But I’ve always felt a kinship with a Riverside County reservoir that spells our mutual name the correct way, with just one “t.” What’s more, Lake Mathews serves as the beating heart of the system that supplies water for me and millions of Southern Californians. Lake Mathews represents an end and a beginning.

San Diego’s Water Authority Has Reignited a Century-Old Water Dispute with Local Tribes

A century ago, a handful of Indian tribes in North County lost their water as settlers began drying up the San Luis Rey River. For 50 years, the tribes fought to get back their water — water that’s used today by Escondido and Vista. They spent over a decade in lower courts and in 1984 took a fruitless trip to the Supreme Court. Several years of negotiations went nowhere and a 1988 act of Congress intended to settle the matter instead caused more confusion. That led to another decade of negotiations, and then yet another act of Congress in 2016 to clear things up. Another several months passed while the paperwork was completed.

Big Improvement In Predicting Drought-Busting Atmospheric Rivers

Atmospheric rivers are vital to western water supplies, yet until very recently they were poorly understood: difficult to predict and measure, and very hard for scientists to estimate where they would make landfall. These are often erroneously called “pineapple express” storms, a term that applies to only a subset of atmospheric river events that originate near Hawaii. Most atmospheric river storms begin in the more distant tropical ocean and develop into a narrow band of strong winds that funnel huge quantities of moisture toward the West Coast of the United States.

Water Conservation In California Drops After Dry Winter

Less than a year after Gov. Jerry Brown declared the end of a statewide drought in April 2017, people are conserving less water and California’s water systems are once again vulnerable to drought. Following an unusually dry winter, water conservation this year has fallen far below the mandated levels during the state’s recent multiyear drought, resulting in a combination of factors that may potentially lead to another drought.

California Doesn’t Want This Towering Water Project. Trump Administration May Build It Anyway

The Trump administration is pushing forward with a colossal public works project in Northern California — heightening the towering Shasta Dam the equivalent of nearly two stories. The problem is that California is dead-set against the plan, and state law prohibits the 602-foot New Deal-era structure from getting any taller. But in these times of unprecedented tension between Washington and California, the state’s objection to this $1.3-billion project near the Sacramento River is hardly proving a deterrent.