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A Wet Start To The Winter Brings Piles Of Snow To California Mountains And High Hopes For Water Supply

/in , /by /Los Angeles Timesby Alejandra Reyes-Velarde

In a good sign for California’s water supply, the Sierra Nevada has been blanketed by heavy snow thanks to a series of recent storms. The snowpack measured 106% of average, according to the state’s snow survey taken late last week. That’s more than double the 47% of average measured on the same day last year. The Sierra Nevada is a key source of water for California, which is still recovering from years of drought conditions. Two storms beginning on Thanksgiving brought up to 2 feet of snow in parts of the northern Sierra, said Emily Heller, a meteorologist with the National Weather Service.

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Feinstein Pushes To Extend Controversial Water Law Despite Environmental Concern

/in , /by /San Francisco Chronicleby Kurtis Alexander

Sen. Dianne Feinstein is joining forces with House Republicans to try to extend a controversial law that provides more water for Central Valley farms, but with a sweetener for the environment: help with protecting California’s rivers and fish. The proposed extension of the WIIN Act, or Water Infrastructure Improvements for the Nation Act, would keep millions of federal dollars flowing for new dams and reservoirs across the West. It would also continue to allow more water to be moved from wet Northern California to the drier south.

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OPINION: Dan Walters: New Water Deal Isn’t A Political Certainty

/in , /by /Napa Valley Registerby Dan Walters

Water supply is clearly the most important long-term issue affecting California’s future. It’s also the most politically complicated. Incremental changes in California water policy typically take years, if not decades, to work their way through seemingly infinite legal, regulatory and political processes at federal, state and local levels – and the conflicts often are over the processes themselves.

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San Diego’s airport reported 3.98 inches of rain between the start of the 2019 water year on Oct. 1 and Dec. 7, according to the National Weather Service. Photo: James Arnott, Flickr/Creative Commons License Wat

Late-Fall Storms Improve Water Outlook Statewide

/in , /by by Water News Network Staff

San Diego welcomed an unexpectedly large amount of rain since mid-November, surpassing last year’s rainfall total in just the first 10 weeks of the season.

Following the latest storm, two-day precipitation totals on Dec. 7 showed rainfall of 2.6 inches at San Diego’s Lindbergh Field, San Diego’s official weather station. Regional readings ranged from a high of 3.23 inches in the University Heights area of San Diego, to 1.1 inches in Lakeside and less than an inch in the county’s desert areas.

San Diego’s airport reported 3.98 inches of rain between the start of the 2019 water year on Oct. 1 and Dec. 7, according to the National Weather Service.  Just over three inches of rain was recorded at Lindbergh Field between Oct. 1, 2017, and Sept. 30, 2018 – the second lowest total since 1850.

To put the water season in perspective, average rainfall at this time of year is about 1.8 inches.

Sierra Nevada Snowpack off to a Fast Start

In Northern California, late-fall storm systems have dropped a generous amount of snow in the Sierra Nevada, which had been very dry through mid-November. Many mountain areas are reporting twice the average snowpack for mid-December.

More than 60 percent of the state’s water supply comes from Sierra Nevada snowpack as it melts and releases water to lower elevations.  The more snow that falls each winter, the more protection the state builds against drought the following year. 

The news is also positive in the Rocky Mountains, though the Upper Colorado River Basin has been struggling with drought for nearly two decades. Rainfall was at 119 percent of average in mid-November.

San Diego Region has Sufficient Supplies for 2019

For San Diego County, the National Oceanic and Atmospheric Administration’s Climate Prediction Center’s three-month weather outlook for December through February predicts above-normal precipitation across all of California except the very northern tier. The agency also predicts above-normal temperatures for the western states, with a greater than 40 percent probability of above-normal temperatures this winter statewide.

Even if weather conditions were to dry out through September 2019, the Water Authority and its member agencies have enough water supplies to meet regional demands for the foreseeable future. This is possible due to a combination of drought-resilient local and regional water resources, including the Claude “Bud” Lewis Carlsbad Desalination Plant, conserved agricultural water transfers, savings from canal lining projects, and continued water-use efficiency measures.

A weak El Nino is expected to form and continue in the Northern Hemisphere this winter and into the spring. As a result, the U.S. Seasonal Drought Outlook released on Nov. 15 favors drought improvement or removal for California and the southern portion of the Southwest.

Meteorologist Alex Tardy of the National Weather Service San Diego office predicted near-average precipitation in the region in his 2018-2019 outlook, noting that “past precipitation events have been extreme” with extended dry periods between storm patterns that bring heavy rain.

Maximize your landscaping soil's ability to retain and save rainfall and irrigation for drier days. Photo: D. Douk/Creative Commons

Building a Water Savings Account

/in , /by

Managing water wisely in a landscape is a lot like managing a bank savings account.  

Approximately half of the water spent by average California homes is used outdoors, mostly for irrigation. Unfortunately, up to half of commercial and residential irrigation water is squandered by evaporation, wind, improper system design, or overwatering, according to the U.S. Environmental Protection Agency.  

Using landscape irrigation efficiently can significantly reduce overall household water consumption while leaving adequate water in the ground to cover your plants’ needs. 

During the winter in metropolitan San Diego County, healthy soil can absorb water in surprisingly large quantities to be released slowly to plants as they use it during drier months – like using a savings account to pay for expenses over time.  

That’s particularly true during wet spells like we’ve had in late November and early December 2018; no need to spend irrigation water when Mother Nature is making the deposits for you. 

Balance your water bank account 

Water that enters the soil as rain or irrigation is like a deposit into a soil checking account.  

By keeping track of those transactions of water in and water out, it is possible to know how much water in the soil “reservoir” is available in the landscape at any given time for the plants to access. 

The initial soil bank balance is determined by direct observation or is assessed after a thorough wetting of the soil by irrigation or winter rains. Every day, plants take small amounts of water from the soil. Rain and irrigation fill up the water bank again. The trick is to make sure this “account” does not get overdrawn. 

How can you tell when the account is depleted? Smart irrigation controllers and landscape professionals can calculate this for you. You can also rely on a soil probe, or even testing the landscape by feeling the soil surface with your fingers. 

 

When oxygen and water are balanced in the soil, the amount of water lost through evapotranspiration is similar to paying fees on your savings account. Shading the soil surface with plant materials and mulch protects water in the soil by slowing evapotranspiration and leaving more water in your soil’s account. 

 This article was inspired by the 71-page Sustainable Landscapes Program guidebook available at SustainableLandscapesSD.org. The Water Authority and its partners also offer other great resources for landscaping upgrades, including free WaterSmart classes at WaterSmartSD.org. 

 

 

Sierra Snowpack Well Above Average After Storms

/in , /by /NBC 4 (Los Angeles)

Back-to-back California storms blanket the Sierra Nevada in snow, more than twice the snowpack level compared to this time last year, with winter still nearly two weeks away. At the same time last year, the Sierra snowpack was 47 percent of average, the San Francisco Chronicle reported Friday. A series of systems starting around Thanksgiving dropped several feet (meters) of fresh powder in some mountain areas.

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Late-Fall Storms Improve Water Outlook Statewide

/in , /by /Water News Network

San Diego welcomed an unexpectedly large amount of rain since mid-November, surpassing last year’s rainfall total in just the first 10 weeks of the season. Following the latest storm, two-day precipitation totals on Dec. 7 showed rainfall of 2.6 inches at San Diego’s Lindbergh Field, San Diego’s official weather station. Regional readings ranged from a high of 3.23 inches in the University Heights area of San Diego, to 1.1 inches in Lakeside and less than an inch in the county’s desert areas.

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IID OKs Possible Drought Measures, But Reserves Right To Vote Last On 7-State Deal

/in , , /by /The Desert Sun (Palm Springs)by Janet Wilson and Ian James

The Imperial Irrigation District, which holds some of the oldest and largest rights to Colorado River water, on Monday tentatively agreed to a one-time contribution of up to 250,000 acre-feet of surplus water if needed to stave off shortages in Lake Mead. But they tacked on several last-minute conditions aimed at easing farmers’ fears of permanently losing water, and to force federal and state officials to guarantee funding for clean-up of the Salton Sea.

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7 Southwestern States, Including California, Expected to Miss Deadline on Colorado River Drought Plan

/in , /by /KTLA 5 (Los Angeles)

With drought entering a second decade and reservoirs continuing to shrink, seven Southwestern U.S. states that depend on the overtaxed Colorado River for crop irrigation and drinking water had been expected to ink a crucial share-the-pain contingency plan by the end of 2018. They’re not going to make it — at least not in time for upcoming meetings in Las Vegas involving representatives from Arizona, California, Colorado, Nevada, New Mexico, Utah, Wyoming and the U.S. government, officials say.

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MarketInk: Airport Helps Promote Water Authority’s ‘Brought to You by Water’ Campaign

/in , /by /Times of San Diegoby Rick Griffin

The San Diego County Regional Airport Authority is donating free digital advertising space at Lindbergh Field to the San Diego County Water Authority. The advertising is valued at tens of thousands of dollars. Starting the day before Thanksgiving, monitors at the airport’s baggage claim carousels in both Terminal 1 and 2 began announcing that San Diego is “Brought to You By Water.” The Water Authority said the ads’ takeaway message is the importance of water reliability to the region’s core industries, including tourism, manufacturing, agriculture and brewing.

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