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El Niño Anticipated to Continue Through the Northern Hemisphere Winter

/in , /by /NWS Climate Prediction Center

El Niño is anticipated to continue through the Northern Hemisphere winter (with a greater than 95% chance through January – March 2024). An El Niño Advisory remains in effect.

In August, sea surface temperatures (SSTs) were above average across the equatorial Pacific Ocean [Fig. 1], with strengthening in the central and east-central Pacific. All of the latest weekly Niño indices were in excess of +1.0°C: Niño-4 was +1.1°C, Niño-3.4 was +1.6°C, Niño-3 was +2.2°C, and Niño1+2 was +2.9°C [Fig. 2]. Area-averaged subsurface temperatures anomalies increased compared to July [Fig. 3] in association with anomalous warmth in the central and eastern equatorial Pacific Ocean [Fig. 4]. Tropical atmospheric anomalies were also consistent with El Niño. Over the east-central Pacific, low-level winds were anomalously westerly, while upper-level winds were anomalously easterly. Convection was slightly enhanced around the International Date Line, stretching into the eastern Pacific, just north of the equator. Convection was mostly suppressed around Indonesia [Fig. 5]. The equatorial Southern Oscillation Index (SOI) and the traditional station-based SOI were both significantly negative. Collectively, the coupled ocean-atmosphere system reflected El Niño.

El Niño Winter

The most recent IRI plume indicates El Niño will persist through the Northern Hemisphere winter 2023-24 [Fig. 6]. Despite nearly the same ensemble mean amplitude as last month, the shorter forecast horizon means that the odds of at least a “strong” El Niño (≥1.5°C for the November-January seasonal average in Niño-3.4) have increased to 71%. However, a strong El Niño does not necessarily equate to strong impacts locally, with the odds of related climate anomalies often lower than the chances of El Niño itself (e.g., CPC’s seasonal outlooks). In summary, El Niño is anticipated to continue through the Northern Hemisphere winter (with greater than 95% chance through January – March 2024; [Fig. 7]).

Next El Niño update in October

This discussion is a consolidated effort of the National Oceanic and Atmospheric Administration (NOAA), NOAA’s National Weather Service, and their funded institutions. Oceanic and atmospheric conditions are updated weekly on the Climate Prediction Center web site (El Niño/La Niña Current Conditions and Expert Discussions). Additional perspectives and analysis are also available in an ENSO blog. A probabilistic strength forecast is available here. The next ENSO Diagnostics Discussion is scheduled for 12 October 2023.

El Niño

El Niño is anticipated to continue through the Northern Hemisphere winter (with a greater than 95% chance through January – March 2024). An El Niño Advisory remains in effect. Graphic: NOAA

Full discussion on the latest El Niño update from the National Weather Service Climate Prediction Center: www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso_advisory/ensodisc.shtml

 

WaterSmart classes-landscapes-landscape-water conservation

Free WaterSmart Classes Help Residents Transform Landscapes

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The San Diego County Water Authority offers free WaterSmart classes, with both virtual and in-person options, taught by local landscape design professionals. Classes help participants understand landscape design and maintenance, soil identification and health, turf types and removal tips, plant selection, rainwater catchment, irrigation retrofits and project installation, whether completed as a DIY project or with contractor assistance.

Participants get the knowledge and skills they need to transform their yards into spaces that are water-efficient, sustainable, and beautiful year-round.  The workshops are typically offered in spring and in fall clusters, with fall classes scheduled for September through November.

Five topics are available to choose from, including:

  • Plan Ahead: Understanding Soil and Site Assessments
  • Design: Shape Your Space
  • Plants: Inspiring Choices for our Region
  • Water & Irrigation: Utilizing a Precious Resource
  • Installation and Maintenance: Protecting Your Investment
Plants in beautiful colors that attract pollinators highlight the plant palette. Photo: San Dieguito Water District

Residents will learn how to plan and design a landscape that is not only water-efficient, but also looks vibrant and attracts pollinators. Photo: San Dieguito Water District

Local professionals can help you create a customized plan

Participants who attend all five workshops and meet other program criteria can sign up to receive an in-home visit by a landscape professional who will help them create customized landscape transformation plans, through the Designer at Your Door service. For more information, visit sdcwa.org/your-water/conservation/classes.

“The workshops are designed to help residents create and maintain their own beautiful and water-efficient outdoor spaces,” said Debby Dunn, a water resources specialist for the Water Authority. “Most of our residential water use is outdoors in our landscapes. This is why learning how to create water-efficient spaces is a great way for San Diegans to continue doing their part to use water efficiently.”

Short videos offer an educational and entertaining experience

For people who prefer to learn at their own pace, the Water Authority offers short, entertaining and educational on-demand videos, with topics that mirror the workshops. To watch the videos go to sdcwa.org/your-water/conservation/classes and click on the videos link.

Low-water plants, improved irrigation technologies, and WaterSmart classes not only save water, but also reduce energy use, protect our natural resources, and create beautiful outdoor living spaces.

(Editor’s note: The “Thanks for Planting Me!” summer campaign offers gratitude to the hundreds of thousands of San Diegans who have transformed their landscapes using low-water and native plants as part of a larger effort to use water more efficiently.)

Pumped Storage Hydropower is the Greenest Renewable Energy Technology, Study Says

/in , , /by /OPBby Monica Samayoa

Pumped storage hydropower is the greenest renewable energy technology for large-scale energy storage, a new study suggests.

Researchers with the National Renewable Energy Laboratory said closed-loop pumped storage hydropower will have a lower carbon footprint throughout the lifecycle of the technology, from construction to decommissioning, than other renewable energy storage technologies like lithium-ion batteries. Portland Business Journal first reported the study.

Closed-looped pumped storage hydropower uses two water reservoirs located at different elevations, one higher than the other, that generate power as water flows or gets pumped, from one reservoir to another. Closed-looped pumped storage hydropower is not connected to continuously naturally flowing water sources.

As the nation continues to push forward to reduce greenhouse gas emissions and transition from using fossil fuels to limit the effects of climate change, storing renewable energy in batteries or pumped storage hydropower has come up as a possible solution for creating cleaner energy at a large scale. Other grid-scale technologies have proven difficult to create, from gathering essential minerals to finding an area large enough to place these technologies. Researchers said closed-looped pumped storage hydropower could be the answer.

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Late Addition to Energy Bill May Help Develop a Pumped Storage Facility at San Vicente Reservoir

/in , , /by /The San Diego Union-Tribuneby Rob Nikolewski Quoted: San Diego County Water Authority

A wide-ranging bill at the State Capitol aimed at boosting renewable energy sources includes a provision that could help develop a proposed pumped hydroelectric facility at the San Vicente Reservoir near Lakeside.

Assembly Bill 1373 aims to make the state a centralized buyer for renewable energy sources such as offshore wind power and geothermal facilities. And in a late addition to the bill, it allows the state’s Department of Water Resources to procure funding for a pumped hydro project that “does not exceed 500 megawatts and has been directly appropriated funding by the state before January 1, 2023.”

The Union-Tribune received confirmation from legislative sources that the provision specifically refers to the San Vicente project.

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Earth is Outside its ‘Safe Operating Space for Humanity’ on Most Key Measurements, Study Says

/in , , /by /APby Seth Borenstein

Earth is exceeding its “safe operating space for humanity” in six of nine key measurements of its health, and two of the remaining three are headed in the wrong direction, a new study said.

Earth’s climate, biodiversity, land, freshwater, nutrient pollution and “novel” chemicals (human-made compounds like microplastics and nuclear waste) are all out of whack, a group of international scientists said in Wednesday’s journal Science Advances. Only the acidity of the oceans, the health of the air and the ozone layer are within the boundaries considered safe, and both ocean and air pollution are heading in the wrong direction, the study said.

“We are in very bad shape,” said study co-author Johan Rockstrom, director of the Potsdam Institute for Climate Impact Research in Germany. “We show in this analysis that the planet is losing resilience and the patient is sick.”

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Climate Change Making Summer Hotter Despite Mild Season in California

/in , , /by /ABC 10 by Brenden Mincheff

It wasn’t too bad of a summer season here in Northern California and really, when it comes to temperature, the entire state of California had a pretty mild summer.

Perhaps Kaitlyn Trudeau, a meteorologist with Climate Central, summed it up best: “Well, it wasn’t as hot as it’s been in recent years.”

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No Reprieve in Sight for Sewage Flow From Mexico as Repair Costs Continue to Climb

/in , , /by /The San Diego Union-Tribuneby Tammy Murga

Sewage from Tijuana will continue to foul South County beaches unchecked for at least a year before repairs can be made to an aging federal wastewater treatment plant at the U.S.-Mexico border, officials with the binational agency that operates the facility said Wednesday.

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Plans for Urgent South Bay Wastewater Plant Repairs Revealed

/in , , /by /10 Newsby Madison Weil

As calls to fix the sewage crisis in the South Bay continue to intensify, there were some heated moments inside Wednesday morning’s Regional Water Quality Control Board meeting.

“We continue to be woken up by the smell of chemicals and sewage in the middle of the night,” said Paloma Aguirre, Imperial Beach’s mayor, as she read an emotional letter from one of her constituents to the board.

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Pleasanton Residents Protest Water Rate Hikes

/in , /by /The Independent by Fay Yassini

 A petition that has garnered more than 1,800 signatures on change.org is challenging the accuracy of the data that the City of Pleasanton has presented about proposed water rate increases.

The Pleasanton City Council meets next Tuesday to consider raising water rates starting in November. The city says residents would be charged an average of $33 more every two months to start, but rates could go up as much as $75 for that same time period by 2026.

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Water, Sewer Bills in This SLO County City Could Rise by Nearly 20% Due to Deficit

/in , /by /The Tribune by John Lynch

Water and sewer bills in Grover Beach could increase by nearly 20% to make up for a $2 million deficit in revenue, the city announced Wednesday in a news release. At its Sept. 5 meeting, the Grover Beach City Council learned about the findings from a recent utility rate study, heard recommendations and unanimously instructed the city staff to start the Proposition 218 process, a step in notifying the public about proposed rate changes, the release said.

 

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