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Lake Berryessa News - May 7, 2025
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Glory Hole Watch 2025 Is Over! (5/7/25)
The Lake Berryessa water level is at 439.7 feet, 3.6 inches below Glory Hole.
The spill level reached 0 cfs at 439.88 feet on 5/2/25.
Days above Glory Hole (5/2/25) = 87.
Here are the 8 longest spills for Lake Berryessa...
1967-148 days
2006-142 days
1965-134 days
1983-133 days
1974-125 days
1969-111 days
1971-105 days
1998-105 days
The average spill length is 84 days so this year will be just over the average spill length.
Dam output is averaging 470 cfs in response to the springtime agricultural requirements of Solano County. The output will continue to rise all summer to a usual maximum of more than 700 cfs.
Lake capacity is at 1,546,953 A-F or 99.7%.
Water temperatures are rising with the surface hitting 70 degrees.
Glory Hole spilled on February 4, 2025
Its highest level was on Valentine's Day, 2/14/25, at 442.97 feet.
Rainfall total is 22.88 inches at Monticello Dam.
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See Lake Berryessa's Glory Hole from inside with water flowing (unknown date) at:
https://www.youtube.com/shorts/BuP_NGqjqtI
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Glory Hole Watch - The Series
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Free Book Chapters Available For Download
My sincere thanks to those of you who contributed to the future of the Lake Berryessa News. I challenge you to find any Lake Berryessa news anywhere. Hopefully, the many years of our intensive reporting about the latest Lake Berryessa issues will convince you of the truth of our motto, "Without The Lake Berryessa News there would be no Lake Berryessa news".
Here's a gift from The Lake Berryessa News to my readers - Free downloadable chapters from my books:
The Death of a Valley
Why Does Lake Berryessa Exist?
The Lake Berryessa Watershed
Rainfall and Lake Level History
How High Is Lake Berryessa?
How Deep is Lake Berryessa?
How Much Water Does Lake Berryessa Hold?
Mean Sea Level: Is There Such A Thing As Accurate Height?
Water In, Water Out, But From Where?
Does the WALROS Like Lake Berryessa?
Why is Lake Berryessa Not a Part of the Berryessa Snow Mountain National Monument?
East Side Story
Hiking and Wildlife Viewing
Are There Quail on Quail Ridge?
Why Does A Hiker Cross The Road? To Get To Stebbins Cold Canyon!
Private Houseboats - Yes; Private RVs & Trailers - No: Why?
Motorized Boats Banned From Big Island Lagoon! Why!
Archeologists Can't Dunk But Can Dig
What Can't You Do At Lake Berryessa?
Napa Opposes Building the Monticello Dam
Monticello Dam Construction
Raise Monticello Dam
Power Generation at Monticello Dam
Monticello Dam Failure Analysis
Predicting the Future & Glory Hole Drone Videos
As Lake Berryessa Turns!
The Ins and Outs & Ups and Downs of Lake Berryessa
Does Lake Berryessa Sweat in the Summer?
Glory Hole Introduction
How Does Glory Hole Work?
Glory Hole: Awesome, Frightening, But Dangerous?
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Lake Berryessa Political History (Free Downloads of Book Chapters)
Policy And Politics Betray The People: The Lake Berryessa Saga: 1958 - 2020, By Peter Kilkus
I. The Five Tragedies Of The Berryessa Valley: A History Of Heartbreak
II. Lake Berryessa Political History Timeline
III. The “Big Lie”: How It All Began
IV. The “Big Fail”: Napa Abandons Lake Berryessa (1975)
V. The “Big Picture”: Lake Berryessa Issues: 1957 - 2012
VI. The “Big Illusion”: Notice Of Intent
VII. The “Big Fight”: Facts Do Matter
VIII. The “Big Betrayal”: Perversion Of Public Law 96-375
IX. The “Big Mistake”: Pensus - The Beginning Was The End!
X. The “Big Hole In History”: Post-Pensus Blues
XI. The “Big Boondoggle”: Creation Of A Phony National Monument
Addendum 1. Dueling Napa Register Letters To The Editor
Addendum 2. The Napa Register View
Index Of Primary Documents
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Lake Berryessa Technical Manual: The Science, Engineering, History, and Humor of a Major Unnatural Resource
https://www.amazon.com/Lake-Berryessa-Technical-Manual-Engineering-ebook/dp/B0C21DZ9M9/ref=sr_1_3?
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Policy and Politics Betray the People: The Lake Berryessa Saga: 1958 - 2020
https://www.amazon.com/Policy-Politics-Betray-People-Berryessa-ebook/dp/B08MFSQDBR/ref=sr_1_1?
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Conspiracy Theory or Automatic Pilot: The Economic Roots of Environmental Destruction
https://www.amazon.com/Conspiracy-Theory-Automatic-Pilot-Environmental/dp/1676368302/ref=sr_1_3?
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The KPIX Eye on the Bay interview below is one I did in 2010 and a relevant introduction to the substance of the book. I did it after Pensus had been given the contract for 5 resorts. As we all know Pensus was subsequently kicked out in 2012.
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Lake Berryessa Data Sources
There are many sources of Lake Berryessa water and weather conditions available. The Solano County Water Agency site is good for real-time graphs of level, capacity, and water temperature. The California Data Exchange Center has data going back decades for level, capacity, capacity change, dam outflow, dam inflow, and rainfall. Anyone can research their own data and create custom charts. This is the source of many of the charts on the Lake Berryessa News website.
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An upgraded wildfire alert camera system will be keeping watch on Napa County day and night and notifying Cal Fire crews of potential fires. Twenty cameras will be part of a system that will use artificial intelligence and other technologies to identify fire and smoke. If they detect something, an alert will sound in the Cal Fire emergency command center near St. Helena.
Cal Fire has made a large investment into the ALERTCalifornia system, partnering with UC San Diego. There are 1,000 cameras across the state and Napa County is one of the test models. Cameras can see 60 miles during the day, and this can increase to 120 miles on clear nights, with the changes in the air. The system can differentiate among smoke, clouds and dust. A link to this camera system and other relevant weather data is available on the Lake Berryessa News website at: http://www.rntl.net/lake-berryessa-cams/
This website was created by Doug Kunst. It is an amazing resource for Lake Berryessa fire cameras and weather. His business website is http://www.rntl.net/
Lake Berryessa Fire Alert Cameras
http://www.rntl.net/lake-berryessa-cams/
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Real-Time Lake Level, Lake Capacity, Water Temperature
Solano County Water Agency
https://www.scwamonitoring.com/LakeBerryessa/
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Lake Detailed Historical Data
California Data Exchange Center
https://cdec.water.ca.gov/
Research historical data and create custom plots
Lake Berryessa Code: BER
https://cdec.water.ca.gov/dynamicapp/sensorplots?staid=ber&dur_code=D
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Local Weather Stations (Weather Underground Network)
Berryessa Highlands (Somewhere in the Berryessa Highlands)
Berryessa Highlands - KCANAPA20
https://www.wunderground.com/dashboard/pws/KCANAPA20
Skiers Cove (Below the Berryessa Highlands)
Skier Cove - KCANAPA228
https://www.wunderground.com/dashboard/pws/KCANAPA228
East Side Road (Across from Big Island)
East Side Road, Lake Berryessa - KCALAKEB2
https://www.wunderground.com/dashboard/pws/KCALAKEB2
Spanish Flat (Near the Spanish Flat Recreation Area)
Roger - KCASPANI1
https://www.wunderground.com/dashboard/pws/KCASPANI1