“La Niña is still firmly in place as winter approaches. NOAA data released on Thursday shows cooler than average sea surface temperatures continuing across the central and eastern equatorial Pacific, and most models keep the pattern around through winter, although it is expected to remain weak.  That weak signal arrives at a time when many Californians still rely on an old rule of thumb: El Niño means wet and La Niña means dry.  It is an idea that stuck easily. It’s tidy and rooted in real science. But as recent winters have shown, it’s also incomplete and sometimes misleading. “When El Niño entered public consciousness in the early ’80s, it was tied to one of the wettest winters on record,” said longtime Bay Area meteorologist Jan Null. “Then we hit 1997-98 — another huge El Niño, another flood season. So that idea got cemented. Once it’s in the public psyche, it’s hard to shake.” … ”  Read more from the San Francisco Chronicle.

Fall Run Chinook salmon runs looking much better this year on the Sacramento and Klamath

“Fall-run Chinook salmon returns to the Sacramento River and Klamath River systems are looking much better this year, the third year of a total closure of commercial ocean salmon fishing in California coast, than they did last year, according to preliminary data.  An estimated 40,000+ king salmon have returned to Coleman National Fish Hatchery on Battle Creek, the hatchery that provides the salmon for the main stem Sacramento, according to James Stone, President of the Nor Cal Guides & Sportsmen’s Association.  Hatchery staff took in 28-30 million total eggs for Fall Run Chinook this year to date, a big improvement from last year when the facility had to obtain eggs from the Feather, Nimbus, and Mokelumne hatcheries to meet its production goal.  Due to the low numbers of fish that returned to Coleman the last 3 years, recreational salmon fishing on the Sacramento River was closed for the third year in a row, although a limited salmon season was allowed on the Feather, American and Mokelumne rivers this year. … ”  Read more from the Daily Kos.

SEE ALSO: Sacramento salmon success, from the Union Democrat

Solar panels built over California canals generate power, save water

“An irrigation district in California’s Central Valley region has installed arrays of solar panels atop a series of canals to demonstrate how such systems can generate electrical power and, through shading, reduce the loss of water from evaporation.  The solar arrays are also intended to reduce maintenance costs on the canals by limiting the amount of vegetation that forms in the canals and hampers water flow, explained Bill Penney, P.E., civil engineering department manager at the Turlock Irrigation District.  Founded in 1887 as California’s first publicly owned irrigation district, the TID helped bring water to the “dry land nestled between the Tuolumne, Merced, and San Joaquin rivers,” according to the district’s website. In the 1920s, the TID also began to generate electricity for its customers, first through a hydropower dam but now also via natural gas facilities as well as wind and solar generation, noted Penney. The canal solar arrays project is just the latest innovative concept to be tried in the TID’s nearly 140-year history, Penney said. … ”  Read more from Civil Engineering Source.

Into the fog: Researching the coastal staple

Sunrise on the Silverado Trail, Napa Valley. Photo by Seligmanwaite

“The future of coastal fog is anything but clear.  Daniel Fernandez, a Cal State Monterey Bay professor and electrical engineer-turned-fog researcher, recently launched the Pacific Coastal Fog Research project. Fernandez and a team of researchers around the U.S., the self-annointed “Fog Five,” were awarded a $733,000 grant from the Heising-Simons Foundation to study the impact of climate change on fog over the next five years through the project. The Fog Five hope to clear up the debated present and future state of the iconic scenery staple of California’s coast.  “It’s so ever-present in so many of our lives,” Fernandez says. “Whether we love it or hate it, it’s there.” … ”  Read more from the Monterey Herald.

How snowy could it be where you live this winter?  See how snowfall is changing across the United States and find out if this winter will be cold and snowy.

“The magic of a winter wonderland runs deep in American culture, from the prospect of spending the day by the fireplace as snow piles up outside to the promise of canceled classes for schoolkids.  But data shows there’s less of that magic in the last half decade than there used to be — particularly in the central and eastern United States. A new analysis by The Washington Post found that swaths of the Plains, Midwest and East Coast have received much less snow than average over the past five winters — a trend that may continue this season, unless the polar vortex makes an early winter visit. The biggest snow shortages have occurred near the East Coast, with the Carolinas, D.C., Rhode Island, Virginia, Maryland, Connecticut, Delaware and New Jersey all seeing snow decrease by at least 35 percent since 2020.  Around 70 percent of states in the contiguous U.S. have seen declining snowfall in recent winters, although parts of the West and some of the South have experienced more snow. … ”  Read more from the Washington Post.

California moves to fill climate void left by the federal government on the world stage

“Last week, people from around the world descended on Belém, Brazil, a gateway to the Amazon rainforest. They’re there through this week for the United Nations ’ annual climate summit, called COP30, so-named for the 30 years the meeting has been in existence.  But missing among them will be delegates from the federal government of the U.S., including President Donald Trump, who has denied the existence of climate change. The lack of federal officials does not mean the country won’t be represented, however. Filling the void are leaders from states and cities alike. And California is leading the pack.   “California is a stable and reliable partner in low-carbon green growth,” Gov. Gavin Newsom said while attending the gathering along with several of his top climate leaders. “I’m here because I don’t want the United States of America to be a footnote at this conference.” … ”  Read more from the LAist.