California
Historic California floods of 1861-62 featured 8 weeks of atmospheric rivers
What is an atmospheric river? The largest freshwater ‘rivers’ on Earth, atmospheric rivers are long, narrow bands of highly concentrated water vapor flowing in the atmosphere.
SACRAMENTO, Calif. – Imagine Disneyland under feet of water for weeks. Rivers swelling to levels never seen before and never seen since. Days of rain stretch into weeks as floodwaters rise to epic levels.
California may have endured an onslaught of tropically-infused atmospheric river storms that filled the calendar for months at the end of 2022 and the start of 2023 and is staring at another atmospheric river this weekend, but those storms pale in comparison to the historic floods during the winter of 1861-1862.
Floodwaters in Sacramento, California in January 1862.
(California State Library / FOX Weather)
The storms were a recipe for disaster for a young region that had recently been settled. Abraham Lincoln was president at the time, and America was embroiled in the first months of the Civil War. But out West, California’s population was bulging to about a half million in the wake of the great Gold Rush about a dozen years prior.
This 1861 photograph shows flooding at K and Front streets. A nine-year stretch of calm weather was broken with record flooding in the winter of 1861 to 1862. The What Cheer House saloon is prominent to the right of the photograph, as is Ebner’s Hotel. Boats and rafts are visible to the steepled structure in the distance, Saint Rose of Lima Catholic Church at Seventh and K streets.
(Sacramento Public Library / FOX Weather)
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Many of the newcomers settled in flat areas near the river for water supply and ease of commerce and transportation, with mining, ranching and agriculture the main fuel for the economy. In the East, where many came from, floods occurred with thunderstorms in spring and summer, not during the fall and winter. They were also not accustomed to living near large mountain ranges that concentrate rainfall into confined riverbeds.
So when the first of a series of likely atmospheric river-type storms hit the West Coast on Dec. 2, 1861, it was a new experience for many.
30-foot-deep water in California’s Central Valley
The storm first struck Oregon’s Willamette Valley and southern Washington Territory, according to research by meteorologist Larry Schick. The temperature reading at Fort Vancouver in Washington Territory was 58 degrees at 7 a.m. – well above average and signaling a warm, tropically-infused atmospheric river-type storm that would have carried plenty of moisture.
A birds-eye view of a flooded street; brick buildings line both sides of the street; in the lower left is a sign “Dentist” on side of the building; in front of the store is another standing sign “WW.Thomas Dentist New York”; in front of second sign a man stands on a plank and looks into the distance; in middle distance a man poles his way across the street on a raft; another group is further down the street; on left side, a sign “Connell, Ryan & Co” and on right side “St. George Drug.”
(California History Room, California State Library, Sacramento, California. / FOX Weather)
Shick found the storm would dump so much rain it would flood the Willamette River with raging waters equal to the flow of the mighty Mississippi River – a river 100 times larger. Now 162 years later, that storm still remains the flood of record for the Willamette. It’s not alone.
Schick found the storm eventually pushed south and redeveloped into another atmospheric river-type storm as it crashed into southern Oregon, then Northern California.
SEE SOME OF THE MOST CATASTROPHIC ATMOSPHERIC RIVERS AND FLOODING IN CALIFORNIA HISTORY
The Sacramento River would jump from about 2-3 feet deep to 20 feet deep and set the first of four all-time records that winter.
Shows buildings including Baker & Hamilton, Gilday; flooded streets with men in rowboats.
(California History Room, California State Library, Sacramento, California / FOX Weather)
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“These sustained and multiple, building river level peaks are rare and are testimony to the consistent magnitude of the series of storms,” Schick said.
As the end of December neared, the storm track shifted to the south, now aiming one juicy storm after another at California, while the Pacific Northwest went into an eventual deep freeze.
Storms would keep smashing into California for the next 7-8 weeks. Schick estimated that six of the storms would be categorized as at least “exceptional” atmospheric river storms.
“Measurements on the Sacramento River indicate the first and most substantial rise in December peaking about Dec. 12,” Schick said. “The river did not recede much after that. Subsequent storms pushed it up to several more, even higher peaks into mid-January 1862. The flooding just wouldn’t quit.”
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Widespread flooding swamped large stretches of Central California’s valleys. In one stretch of valley that measured about 30 miles wide and 250 miles long, water depths ranged from a few inches to 30 feet in some areas. Telegraph poles were underwater.
“It’s documented that Leland Stanford, newly elected governor of California, was rowed to his inauguration in flooded downtown Sacramento during the floods,” Schick said. “Many wanted to move the capital from Sacramento to San Francisco because of the flooding. Damages to California included losing 25% of its tax base. The state teetered with bankruptcy.”
Southern California’s turn to feel the historic wrath of the atmospheric rivers
Southern California wasn’t spared as the relentless storm track moved south into the region in January 1862. The Santa Ana River in Southern California measured water flow on Jan. 22 at 318,000 cubic feet per second – about half the flow of the Mississippi River despite being a tiny fraction of its size.
Shows buildings including Coffee Wareroom; flooded streets with men in rowboats in Sacramento, Calif. during 1861-62 floods.
(California History Room, California State Library, Sacramento, California.)
Floodwaters stretched across the Los Angeles Basin and parts of Orange County, south into San Diego. Where Disneyland sits today would have been flooded under 2-4 feet of water for 3-6 weeks, according to Schick.
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“Poor little Snow White would have been doing the backstroke to get to Tomorrowland,” he said.
Pacific Northwest goes into deep freeze
Finally, some of the cold air that had been freezing the Pacific Northwest sinks down and shuts off the storm track. But not before leaving its icy mark across that region.
The Seattle area would drop below 0 degrees, while the temp dropped to -29 degrees in Walla Walla and just 23 degrees in San Francisco. The Columbia, Willamette and Fraser rivers all froze solid.
The final tallies
It was the incredible amounts of water that fell from the sky that would leave the greatest mark.
Eight major rivers in the West still have the 1862 floods as their high-water marks: The Willamette, Rogue and Klamath rivers in Oregon, and the Stanislaus, American, Tuolomne, Salinas and Santa Ana rivers in California. Schick pointed out that the large floods of 1964 and 1996 on the Willamette may have reached those lofty levels if not for more modern-day flood control efforts.
“Proves dams and reservoirs can help,” Schick said.
It might seem impossible for some of America’s hottest cities to get snow, but it has happened before. Los Angeles, San Francisco, Las Vegas, Tucson, and New Orleans have all seen measurable snow within the last century.
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The Salinas River caused major flooding earlier this year with the train of atmospheric rivers and reached a peak flood of 27 feet. In 1862, the river reached 32 feet.
In addition, the Colorado River’s largest flow measurement is also from 1862 at an incredible 400,000 cubic feet per second due to massive snowmelt later in the spring.
The 50-day rainfall in San Francisco during last winter’s relentless storms peaked at 20.49 inches, according to John Christy, Ph.D., with the University of Alabama. It’s a mere 63% of the 32.43 inches that fell during the 1861-62 storms.
70 feet of snow in the Sierra?
Schick estimated that as impressive as the snowpack was in the Sierras this past winter, it was likely 10-20% more in the winter of 1861-62. California’s Mammoth Mountain had 715 inches of seasonal snowfall in 2022-23, but Schick estimates snowfall reached around 840 inches in 1862. Some 16 feet of snow fell in the Holcomb Valley on the eastern slopes of the San Bernardino Mountains in 1862.
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An onslaught of storms pummeling the West Coast brought feet of snow to California’s Sierra Nevada, including up to 15 feet of snow in areas of Yosemite National Park.
Schick said to put that winter in perspective, take the flooding storms of this past year, then add in the major flooding storms in Northern California in 1964, 1986 and 1997 plus the major Southern California rainstorms of 1938 and 1969, and then you’ll see rivers approach or exceed those all-time records.
About 4,000 people died in the floods, and the damage cost in today’s dollars is around an estimated $3 billion, according to NOAA.
“We must prepare, but nothing will stop a repeat of 1861-62 … or something even worse,” Schick said. “Most disturbing is that climate models suggest stronger atmospheric rivers in the future.”
WHAT DOES THE TERM ‘100-YEAR FLOOD’ ACTUALLY MEAN?
Climatologists estimate a storm of the magnitude of 1861-62 would occur about every 200 years. Schick said his recent research using paleo sediment profiles indicated another series of atmospheric rivers that hit the area in the early 1600s may have even been much worse than 1862.
“So, understanding, modeling, and preparing for repeat is really important,” Schick said.
California
AP Decision Notes: What to expect in California’s state primary
WASHINGTON — Two candidates for California governor will emerge from a massive field of 61 hopefuls in a state primary on Tuesday, when voters will also select U.S. House nominees using a new map they approved in a 2025 ballot measure.
Also on the ballot is a long list of state and local contests, including a Los Angeles mayoral race where the Democratic incumbent mayor faces more than a dozen challengers. Among them is a former reality TV personality whose candidacy has caught the eye of another former reality TV personality, President Donald Trump.
California’s top-two primary format, where all candidates run on the same ballot regardless of party, has complicated the campaign calculus in several high-profile races, including the one to replace term-limited Democratic Gov. Gavin Newsom. While Democratic candidates often welcome the opportunity to run head-to-head against a Republican in the dark blue state, the number of well-known Democrats in the race threatens to split the vote and inadvertently clear the path for two Republicans to advance to the general election, which would guarantee a Republican governor.
The Democratic field includes former U.S. health secretary Xavier Becerra, former U.S. Rep. Katie Porter, San Jose Mayor Matt Mahan, billionaire 2020 presidential candidate Tom Steyer and former Los Angeles Mayor Antonio Villaraigosa. Republicans vying for the seat include Riverside County Sheriff Chad Bianco and conservative commentator Steve Hilton, who has Trump’s endorsement.
Democrats Eric Swalwell and former state Controller Betty Yee will also appear on the ballot, although both have withdrawn from the race. Swalwell was a top contender in the campaign but withdrew on April 12 following sexual assault allegations he has denied. He resigned from Congress two days later.
In the race for control of the narrowly divided U.S. House, a new congressional map favorable to Democrats has complicated the reelection bids of several Republican House incumbents. Voters approved the new district boundaries in a Nov. 2025 referendum, which was a response to Trump’s initiative in Texas and other states to maximize the number of GOP seats heading into the fall midterm election.
In the 6th Congressional District, U.S. Rep. Kevin Kiley considered his limited options and left the Republican Party in March to run for reelection as an independent.
Republican U.S. Reps. Ken Calvert and Young Kim are competing against each other in the 40th Congressional District. Democrat Esther Kim Varet is one of several challengers hoping to snag one of two spots in the general election.
Also on the ballot is a special election in the 1st Congressional District to complete the term of the late Republican U.S. Rep. Doug LaMalfa, who died in January. The five-person field pits the Democratic state Senate President against the Republican state Assembly Minority Leader. If no candidate receives a vote majority, the top two finishers will compete one-on-one on Aug. 4. The winner will serve under the current district boundaries, not the new map going into effect in the next Congress.
A special election to fill Swalwell’s vacant 14th Congressional District seat will be held June 16, also under the current boundaries.
In the race for Los Angeles mayor, Democrat Karen Bass seeks a second term in the nonpartisan office against tech entrepreneur Adam Miller, former MTV reality show cast member Spencer Pratt, City Councilmember Nithya Raman and others. Trump recently said of Pratt, “I’d like to see him do well.”
Democrats have a significant advantage over Republicans in statewide races based on their overwhelming support in the populous areas surrounding Los Angeles, San Francisco, Sacramento and San Diego. Republicans tend to perform best in the more sparsely populated areas of northern California and the Central Valley, while running competitively in Southern California suburbs outside of Los Angeles and San Diego. A Republican has not won statewide office in California since 2006.
Here are some of the key facts about the election and data points the AP Decision Team will monitor as the votes are tallied:
When do polls close?
Polls close at 8 p.m. PT, which is 11 p.m. ET.
What’s on the ballot?
The AP will provide vote results and declare winners in contested races for U.S. House, governor, lieutenant governor, secretary of state, controller, treasurer, attorney general, insurance commissioner, state school superintendent, Board of Equalization, state Senate, State House, mayor of Long Beach, mayor of Los Angeles and Los Angeles County sheriff.
Who gets to vote?
Any registered voter in California may participate in the state primary.
How many voters are there?
As of April 3, there were about 23.1 million registered voters in California, including about 10.4 million Democrats, about 5.8 million Republicans and about 5.3 million not registered with any party.
How many people actually vote?
About 7.3 million votes were cast in the U.S. Senate primary in 2024, roughly a third of registered voters.
How much of the vote is cast early or by absentee ballot?
About 89% of vote in the 2024 U.S. Senate primary was cast before primary day.
As of Thursday, about 2.6 million ballots had already been cast in Tuesday’s election.
When are early and absentee votes released?
About four out of every five California counties release some or most of their results from mail voting in the first vote report of the night, usually before any in-person Election Day results are released. Almost half the counties release most or all of their in-person early voting results in the first vote report.
Since mail voting tends to favor Democrats and in-person Election Day voting tends to favor Republicans, the release of mail voting results at the start of the night could result in an early lead for Democratic candidates, while Republican candidates may narrow the gap as more Election Day results are counted.
How long does vote-counting usually take?
In the 2024 primaries, the AP first reported results at 11:08 p.m. ET, or eight minutes after polls closed. The last vote update of the night was at 6:01 a.m. ET with about 52% of total votes counted. The count reached 99% of total votes about two weeks later on March 20 at 7:47 p.m. ET.
When will the AP declare a winner?
The Associated Press does not make projections and will declare a winner only when it’s determined there is no scenario that would allow a trailing candidate to close the gap. If a race has not been called, the AP will continue to cover any newsworthy developments, such as candidate concessions or declarations of victory. In doing so, the AP will make clear that it has not yet declared a winner and explain why.
How do recounts work?
There are no automatic recounts in California. Any registered voter may request and pay for a recount. The AP may declare a winner in a race that is subject to a recount if it can determine the lead is too large for a recount or legal challenge to change the outcome.
Are we there yet?
As of Tuesday, there will be 14 days until the June 16 special primary in Congressional District 14, 63 days until the Aug. 4 special general election in Congressional District 1, 77 days until the Aug. 18 special general election in Congressional District 14 and 154 days until the Nov. 3 general election.
Copyright © 2026 by The Associated Press. All Rights Reserved.
California
‘Sneaker wave’ sucks California fisherman out to sea
A fisherman was pulled from the ocean and rushed to a hospital in critical condition after a powerful “sneaker wave” swept him off the shoreline at Baker Beach in San Francisco.
The dramatic May 29 rescue unfolded around 1 p.m. in the Presidio, where emergency crews responded to reports of a person sucked out to sea.
According to the San Francisco Fire Department, witnesses said the fisherman was standing along the shoreline when a sneaker wave suddenly surged ashore, knocking him to the ground and into the ocean, leaving him incapacitated.
Bystanders quickly called 911, helping launch a large-scale rescue effort that included San Francisco firefighters, an SFPD police boat, drone units and a helicopter.
Within minutes of being dispatched, three rescue swimmers from SFFD entered the water and reached the victim, officials said in a post on X. The crew conducted an open-water rescue and brought the fisherman safely back to shore.
Paramedic rescue swimmers and additional emergency medical personnel immediately began advanced life support measures and rushed the victim to a nearby hospital in critical condition, fire officials said.
Officials said the harrowing ordeal serves as a reminder of the dangers posed by sneaker waves, which can strike with little or no warning.
Unlike typical waves, sneaker waves can surge much farther up the beach than expected, even on days when ocean conditions appear calm. The powerful waves can easily knock people off their feet and drag them into the water before they have time to react.
Fire officials urged beachgoers to stay off wet sand and rocks, keep a constant watch on the ocean and never turn their backs to the water. Anyone who sees a person swept into the surf is asked not to enter the water, but instead to call 911 immediately and throw the victim a flotation device if one is available.
“Early calls to 911 save lives,” fire officials said.
California
California reports one of largest drops in homelessness in past year, Hud reports
California reported one of the largest decreases in homelessness over the past year, according to a new report from the US Department of Housing and Urban Development (Hud).
The Golden state recorded a total unhoused population of 181,934 in 2025 – an almost 3% decrease since the year prior, placing it among the five states with the largest decreases from 2024. However, more significant drops were recorded in Illinois (44%), Hawaii (41%), Florida (11%) and New York (8%).
The new data signals at least some success on the part of Gavin Newsom, the California governor who has intensified his crackdown on homelessness over the past year. In May 2025 he announced a new model ordinance for cities and counties to address “persistent” homeless encampments, as well as $3.3bn in voter-approved funding to increase housing and drug treatment programs.
California, along with New York, had the largest population of unsheltered people recorded in 2025. Homelessness has been a key issue in this year’s gubernatorial race, as well as in the Los Angeles mayoral race.
The data also showed that the national homeless population decreased for the first time since 2016, coming down 3% from 2024. The Trump administration attempted to downplay the small one-year decrease, instead highlighting the fact that homelessness has increased 27% since 2013.
“The data is clear that the status quo of ‘housing first’ has failed to meaningfully reduce homelessness, resulting in crisis levels of people living on the streets,” Scott Turner, the Hud secretary, said in a press release. “HUD is restoring its programs to advance recovery and self-sufficiency and to ensure that taxpayer-funded benefits serve American families.”
As the administration attempted to downplay the drop in homelessness, it also sought to connect the success to its immigration policies, stating that the 2025 decrease was “attributable to decreases in Sanctuary Cities”.
The data comes from the federally mandated homeless point-in-time count, which tallies people sleeping in shelters and outside on a given day. On a single night in January 2025, there were 745,652 homeless persons in the United States.
While anti-homelessness advocates cited the decrease in homelessness as a “relief”, they also pointed out that the Trump administration’s policies may erode the progress that has been made.
“So much of the progress reflected in the 2025 PIT Count is due to targeted housing and service resources that were available in 2024 to rehouse people, including the highly successful Emergency Housing Voucher program, and new funds to address rural and unsheltered homelessness,” Ann Oliva, the CEO of the National Alliance to End Homelessness, said in a statement.
“Unfortunately, the Trump Administration has largely deprioritized these tools and worked to dismantle the very systems that drove these reductions.” Oliva pointed to the administration’s proposed cuts to permanent housing programs, which the organization found would “force at least 170,000 formerly homeless people back on the streets”.
The government has also mandated treatment for recipients of federal housing vouchers, and penalized jurisdictions that employed harm-reduction strategies such as safe consumption sites. In April 2026, Hud introduced a proposed rule that would require federally funded shelters to house prospective tenants based on their birth sex alone.
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