Maven's Notebook
@mavensnotebook.com
Your website for up-to-the-minute California water news and information.
Flash flooding and mudslide risks continue in Northern California and will rise in Southern California through Christmas Day as heavy snow blocks Sierra Nevada roads. #cawater www.accuweather.com/en/weather-f...
Dangerous storm to flood California, threatening lives and property before Christmas
Flash flooding and mudslide risks continue in Northern California and will rise in Southern California through Christmas Day as heavy snow blocks Sierra Nevada roads.
www.accuweather.com
December 24, 2025 at 6:12 PM
Flash flooding and mudslide risks continue in Northern California and will rise in Southern California through Christmas Day as heavy snow blocks Sierra Nevada roads. #cawater www.accuweather.com/en/weather-f...
A rare weather setup may bring waterspouts and tornadoes to the coast Tuesday night to Friday, with the Central Valley at risk Wednesday. While the chance is low for any one spot, experts warn tornadoes are possible during this unusually long window. #cawater www.sfchronicle.com/weather-fore...
California storm is raising a rare threat: long-lasting tornado risk
A tornado threat was forecast to extend from San Francisco to Los Angeles beginning Tuesday night. Conditions for tornadoes were expected to last in parts of the state through Friday.
www.sfchronicle.com
December 24, 2025 at 6:11 PM
A rare weather setup may bring waterspouts and tornadoes to the coast Tuesday night to Friday, with the Central Valley at risk Wednesday. While the chance is low for any one spot, experts warn tornadoes are possible during this unusually long window. #cawater www.sfchronicle.com/weather-fore...
Lake Oroville surpassed 2 million acre feet of water around 10 a.m. Tuesday, according to DWR’s data exchange center, rising more than 23 feet in a three day period. #cawater www.chicoer.com/2025/12/24/l...
Lake Oroville rises 23 feet in 3 days
Lake Oroville surpassed 2 million acre feet of water around 10 a.m. Tuesday, according to DWR’s data exchange center, rising more than 23 feet in a three day period.
www.chicoer.com
December 24, 2025 at 6:09 PM
Lake Oroville surpassed 2 million acre feet of water around 10 a.m. Tuesday, according to DWR’s data exchange center, rising more than 23 feet in a three day period. #cawater www.chicoer.com/2025/12/24/l...
Atmospheric river threatens to unleash deadly debris flows through LA’s wildfire scars. Officials warn: “Get out of the way.” Evacuations are underway. #cawater calmatters.org/environment/...
Atmospheric river could again unleash ‘a flood on steroids’ across Southern California
A dangerous atmospheric river threatens Southern California with excessive rainfall, raising debris flow fears in wildfire burn scars. Evacuations are underway.
calmatters.org
December 24, 2025 at 6:09 PM
Atmospheric river threatens to unleash deadly debris flows through LA’s wildfire scars. Officials warn: “Get out of the way.” Evacuations are underway. #cawater calmatters.org/environment/...
For months, the seven states of the Colorado River basin have failed to reach an agreement on new rules to share the river’s dwindling supply of water. The Trump administration has largely left the states to their own devices. #cawater #coloradoriver www.washingtonpost.com/climate-envi...
The Colorado River is on the verge of crisis. No one has a solution.
The Colorado River faces a crisis as seven states struggle to agree on water-sharing rules.
www.washingtonpost.com
December 24, 2025 at 6:08 PM
For months, the seven states of the Colorado River basin have failed to reach an agreement on new rules to share the river’s dwindling supply of water. The Trump administration has largely left the states to their own devices. #cawater #coloradoriver www.washingtonpost.com/climate-envi...
Lakes Powell and Mead on the Colorado River are less than two-thirds full, leaving scientists, economists, and water law experts fearful that the reservoirs could soon be useless. #cawater www.nationalparkstraveler.org/2025/12/lake...
Lakes Powell And Mead Are More Than Two-Thirds Empty
Lakes Powell and Mead on the Colorado River are less than two-thirds full, leaving scientists, economists, and water law experts fearful that the reservoirs could soon be useless.
www.nationalparkstraveler.org
December 24, 2025 at 6:03 PM
Lakes Powell and Mead on the Colorado River are less than two-thirds full, leaving scientists, economists, and water law experts fearful that the reservoirs could soon be useless. #cawater www.nationalparkstraveler.org/2025/12/lake...
A new atmospheric river will unfold by midweek with torrential rain lingering through Thursday and into Friday. Snow levels may dip enough to bring snow to Interstate 5 near the California-Oregon border as well as the Grapevine in Southern California. #cawater www.accuweather.com/en/travel/ch...
Christmas travelers face delays due to snow, atmospheric river
Dangerous travel conditions will exist in California in the days leading up to Christmas with the Pacific storm potentially affecting airline travel throughout the U.S. Meanwhile, wintry travel will a...
www.accuweather.com
December 23, 2025 at 5:40 PM
A new atmospheric river will unfold by midweek with torrential rain lingering through Thursday and into Friday. Snow levels may dip enough to bring snow to Interstate 5 near the California-Oregon border as well as the Grapevine in Southern California. #cawater www.accuweather.com/en/travel/ch...
Opponents of a plan to remove two Pacific Gas & Electric Co. dams from the Eel River in Lake and Mendocino counties have gained a powerful ally: the Trump administration. #cawater www.marinij.com/2025/12/22/t...
US intervenes in North Coast dam controversy
The Trump administration has thrown a wrench into the plan by Pacific Gas & Electric Co. to decommission waterworks that serve the region.
www.marinij.com
December 23, 2025 at 5:38 PM
Opponents of a plan to remove two Pacific Gas & Electric Co. dams from the Eel River in Lake and Mendocino counties have gained a powerful ally: the Trump administration. #cawater www.marinij.com/2025/12/22/t...
Rocky Mountain ski resorts have become increasingly prone to scant early season snow. To match demands for skiable acreage amid a warming climate, resorts are doubling down on snowmaking technology and acquiring the water rights needed to make it happen. #cawater waterdesk.org/2025/12/clim...
Climate change makes snowmaking a necessity, not a backup, for the West’s ski resorts
Keystone Resort in Colorado was the first resort in the country to open in 2025, in part due to their emphasis on early-season snowmaking. As climate change amplifies drought in the Mountain West, ski...
waterdesk.org
December 23, 2025 at 5:37 PM
Rocky Mountain ski resorts have become increasingly prone to scant early season snow. To match demands for skiable acreage amid a warming climate, resorts are doubling down on snowmaking technology and acquiring the water rights needed to make it happen. #cawater waterdesk.org/2025/12/clim...
After experiencing one of the slowest starts to ski season in decades, snow has finally arrived in the Tahoe region — and more could be on the way, the National Weather Service’s Reno office says. #cawater www.sfgate.com/renotahoe/ar...
Snow finally arrives in Tahoe
As of Monday morning, several traffic cameras show layers of snow in the area.
www.sfgate.com
December 23, 2025 at 5:34 PM
After experiencing one of the slowest starts to ski season in decades, snow has finally arrived in the Tahoe region — and more could be on the way, the National Weather Service’s Reno office says. #cawater www.sfgate.com/renotahoe/ar...
Nothing but dirt and dry, brown chaparral rolled beneath skis and snowboards dangling from a chairlift at Big Bear Mountain Resort on Friday, as forlorn adventure seekers joked they should rename the place “Big Bare.” #cawater www.latimes.com/california/s...
Skiers call this resort 'Big Bare.' Will the coming storm save California's ski season?
California's snowpack is 12% of normal, leaving bare dirt on many ski runs statewide. But an atmospheric river this week is bringing hope to skiers and water managers.
www.latimes.com
December 23, 2025 at 5:31 PM
Nothing but dirt and dry, brown chaparral rolled beneath skis and snowboards dangling from a chairlift at Big Bear Mountain Resort on Friday, as forlorn adventure seekers joked they should rename the place “Big Bare.” #cawater www.latimes.com/california/s...
Pretty amazing what's coming at us. Stay safe, my #cawater friends! More from CW3E here: cw3e.ucsd.edu/cw3e-ar-upda...
December 23, 2025 at 4:43 AM
Pretty amazing what's coming at us. Stay safe, my #cawater friends! More from CW3E here: cw3e.ucsd.edu/cw3e-ar-upda...
Two main atmospheric rivers will force copious amounts of Pacific moisture into California this week. The Sierra Nevada will receive many feet of snow as freezing levels lower through the week and the region is affected by both atmospheric rivers. #cawater www.accuweather.com/en/severe-we...
2nd atmospheric river to flood California with firehose of rain into Christmas
Heavy rain and flooding problems experienced in the Northwest in recent weeks from atmospheric rivers will shift farther south into California through Christmas Day with major travel disruptions and s...
www.accuweather.com
December 22, 2025 at 5:40 PM
Two main atmospheric rivers will force copious amounts of Pacific moisture into California this week. The Sierra Nevada will receive many feet of snow as freezing levels lower through the week and the region is affected by both atmospheric rivers. #cawater www.accuweather.com/en/severe-we...
The federal government responded to calls to intervene in PG&E’s process to remove the Potter Dam project, filing a notice to intervene in the dam removal process with FERC. #cawater www.times-standard.com/2025/12/19/p...
Potter Valley Project | Feds intervene in Eel River dam removal
“If this plan goes through as proposed, it will devastate hundreds of family farms and wipe out more than a century of agricultural tradition in Potter Valley,” said Secretary of Agriculture Brooke…
www.times-standard.com
December 22, 2025 at 5:39 PM
The federal government responded to calls to intervene in PG&E’s process to remove the Potter Dam project, filing a notice to intervene in the dam removal process with FERC. #cawater www.times-standard.com/2025/12/19/p...
A controversial recent study highlights an old truth about the American West’s snowpack: it’s difficult to measure—and just as hard to forecast how much of its water will ultimately reach tens of millions of people and vast swaths of farmland. #cawater mavensnotebook.com/2025/12/22/w...
WATER DESK: Scientists clash over how to track the West’s vital snowpack
Supporters of airborne snow surveys dispute “hotspots” study on water forecasts By Mitch Tobin, The Water Desk A controversial recent study highlights an old truth about the American West’s snowpack: ...
mavensnotebook.com
December 22, 2025 at 5:37 PM
A controversial recent study highlights an old truth about the American West’s snowpack: it’s difficult to measure—and just as hard to forecast how much of its water will ultimately reach tens of millions of people and vast swaths of farmland. #cawater mavensnotebook.com/2025/12/22/w...
The training and use of artificial-intelligence systems such as ChatGPT might already result in more annual carbon emissions than New York City and more water consumption than all the bottled water drank globally, according to new research. #cawater www.sfexaminer.com/news/technol...
AI may need more water than drank from bottles
Study: Environmental impacts already huge.
www.sfexaminer.com
December 22, 2025 at 5:36 PM
The training and use of artificial-intelligence systems such as ChatGPT might already result in more annual carbon emissions than New York City and more water consumption than all the bottled water drank globally, according to new research. #cawater www.sfexaminer.com/news/technol...
California officials and researchers across the country are sounding the alarm about the Trump admin’s plans to dismember a global hub for weather, wildfire and climate science: the Colorado-based National Center for Atmospheric Research. #cawater mavensnotebook.com/2025/12/20/c...
CAL MATTERS: Trump move to break up atmospheric research center threatens wildfire, storm predictions
‘This is only going to hurt Americans.’ Scientists, California state officials say the Trump administration’s plans to dismantle a key climate science hub will put public safety at risk. By Rachel Bec...
mavensnotebook.com
December 22, 2025 at 5:36 PM
California officials and researchers across the country are sounding the alarm about the Trump admin’s plans to dismember a global hub for weather, wildfire and climate science: the Colorado-based National Center for Atmospheric Research. #cawater mavensnotebook.com/2025/12/20/c...
Just one year after the removal of the Klamath River dams, monitoring shows thousands of salmon pushing deep into newly reopened habitat—some reaching more than 360 river miles from the ocean into the Upper Klamath Basin for the first time in over a century. #cawater caltrout.org/news/klamath...
One Year After Klamath Dam Removal, Salmon Surge into Newly Opened Habitat: CalTrout and Partners Track Recovery Through Comprehensive Monitoring | California Trout
Just one year after the removal of the Klamath River dams, new monitoring results show thousands of Chinook salmon pushing deep into newly reopened habitat—some reaching more than 360 river miles from...
caltrout.org
December 22, 2025 at 5:35 PM
Just one year after the removal of the Klamath River dams, monitoring shows thousands of salmon pushing deep into newly reopened habitat—some reaching more than 360 river miles from the ocean into the Upper Klamath Basin for the first time in over a century. #cawater caltrout.org/news/klamath...
The Chiquita Canyon landfill blamed its own crew for an “operator error” that put more than 7,900 gallons of untreated leachate into an unlined ravine “not yet connected to the leachate collection system.” #cawater signalscv.com/2025/12/chiq...
Chiquita Canyon lets hard-to-reach leachate spill ‘evaporate’
The discussion around Chiquita Canyon Landfill’s latest plan to address a leachate spill drew another violation but no financial penalty for the landfill, which closed off local assistance for impacte...
signalscv.com
December 22, 2025 at 5:33 PM
The Chiquita Canyon landfill blamed its own crew for an “operator error” that put more than 7,900 gallons of untreated leachate into an unlined ravine “not yet connected to the leachate collection system.” #cawater signalscv.com/2025/12/chiq...
Nature's resilience on full display: A year after devastating fires, Altadena's Rubio Canyon Preserve is thriving. Plants, wildlife, and even a long-lost waterfall are making a stunning comeback. 🌿🐾 #cawater www.dailynews.com/2025/12/19/n...
Nature is rebounding a year after January’s fires, as plants, wildlife – and even a waterfall – thrive
A year after the Eaton and Palisades fires, the natural areas, such as canyons and parks, were devastated. But nature has some things up her sleeve that may surprise you.
www.dailynews.com
December 22, 2025 at 5:31 PM
Nature's resilience on full display: A year after devastating fires, Altadena's Rubio Canyon Preserve is thriving. Plants, wildlife, and even a long-lost waterfall are making a stunning comeback. 🌿🐾 #cawater www.dailynews.com/2025/12/19/n...
The Eaton and Palisades fires exposed an array of public safety response issues. A year later, here's a look at some of them and what's been done to correct them #cawater www.ocregister.com/2025/12/22/9...
9 public safety issues raised by Eaton, Palisades fires – and what’s been done about them
The Eaton and Palisades fires exposed an array of public safety response issues. A year later, here’s a look at some of them and what’s been done to correct them.
www.ocregister.com
December 22, 2025 at 5:29 PM
The Eaton and Palisades fires exposed an array of public safety response issues. A year later, here's a look at some of them and what's been done to correct them #cawater www.ocregister.com/2025/12/22/9...
States that rely on the Colorado River have less than two months to agree on how to manage the troubled river – and pressure is mounting as the federal government pushes for a compromise and a troubling forecast for the river’s two biggest reservoirs looms #cawater mavensnotebook.com/2025/12/22/n...
NEVADA CURRENT: Feds demand compromise on Colorado River while states flounder despite water shortage
by Jeniffer Solis, Nevada Current Western states that rely on the Colorado River have less than two months to agree on how to manage the troubled river – and pressure is mounting as the federal govern...
mavensnotebook.com
December 22, 2025 at 5:28 PM
States that rely on the Colorado River have less than two months to agree on how to manage the troubled river – and pressure is mounting as the federal government pushes for a compromise and a troubling forecast for the river’s two biggest reservoirs looms #cawater mavensnotebook.com/2025/12/22/n...
The parade of Pacific storms is on the move and will focus farther south over much of California beginning during the week of Christmas. #cawater www.accuweather.com/en/weather-f...
Heavy rain, flooding from Pacific storms to focus on California leading up to Christmas
The parade of Pacific storms is on the move and will focus farther south over much of California beginning during the week of Christmas. Rounds of heavy rain will lead to flooding as snow piles up in ...
www.accuweather.com
December 19, 2025 at 5:53 PM
The parade of Pacific storms is on the move and will focus farther south over much of California beginning during the week of Christmas. #cawater www.accuweather.com/en/weather-f...
December has been a very dry month across California. But that’s about to change, with three atmospheric rivers forecast to hit the state through Christmas. #cawater www.washingtonpost.com/weather/2025...
What an onslaught of rain will mean for California’s water and wildfires
Atmospheric rivers are returning to California after record wet conditions in some areas during November, lowering wildfire risks but raising the flood threat.
www.washingtonpost.com
December 19, 2025 at 5:52 PM
December has been a very dry month across California. But that’s about to change, with three atmospheric rivers forecast to hit the state through Christmas. #cawater www.washingtonpost.com/weather/2025...
What drives atmospheric rivers? Da Yang explains how these “rivers in the sky” gain and lose momentum, and how researchers are studying their physical properties to improve forecasts and reduce risks. #cawater mavensnotebook.com/2025/12/19/s...
STANFORD: Physics of atmospheric rivers, explained
What drives atmospheric rivers? Da Yang explains how these “rivers in the sky” gain and lose momentum, and how researchers are studying their physical properties to improve forecasts and reduce risks....
mavensnotebook.com
December 19, 2025 at 5:51 PM
What drives atmospheric rivers? Da Yang explains how these “rivers in the sky” gain and lose momentum, and how researchers are studying their physical properties to improve forecasts and reduce risks. #cawater mavensnotebook.com/2025/12/19/s...