The Brief

Topanga Canyon’s nightmare fire scenario begins in the middle of the night when everyone’s asleep at home.

As blustery Santa Ana winds blow in from the east, a spark from a powerline or a passing car drops onto dry brush, starting a fire along the edge of the San Fernando Valley. As the flames grow, emergency services send out alerts, waking up thousands of residents throughout the area, telling some to shelter in place and others to leave.

It’s an increasingly likely situation as our vegetation dries out and winds pick up, according to Drew Smith, fire behavior analyst with L.A. County Fire.

“I would not be surprised,” Smith told me as we stood atop a helipad looking across the Transverse Ranges. “We are training for that.”

Emergency plans divide the area in and near Topanga Canyon into 10 evacuation zones.

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Courtesy Topanga Coalition for Emergency Preparedness

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With only a few arteries in and out of the canyon, Smith warns that a fast-moving wildfire could trap people on the canyon’s narrow roads, consuming everything in its path.

In a worst-case scenario, the fire explodes into a devastating tragedy akin to the 2018 Camp Fire in Butte County, which destroyed the town of Paradise, trapping people trying to escape. At least 85 people were killed.

“That’s one thing that keeps me up at night,” he said. “That worst-case scenario fire with our residents at home with limited options. It’s terrifying.”

Preparing for the worst-case scenario

A hilltop near the Eagle Rock fire road burns in Topanga Canyon State Park from the Palisades Fire on May 15, 2021 in Topanga, California.

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Brian Feinzimer for LAist

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It’s difficult to emphasize just how dangerous wind driven fires can be, especially where we were standing, near the top of Stunt Road, above Calabasas.

Looking out across the Santa Monica Mountains, you can see small communities tucked in between dense chaparral that hasn’t burned in 30 plus years. Meaning, there’s a whole lot energy ready to fuel fires that roll through.

If the Santa Ana winds are blowing, strong gusts can throw embers more than a mile ahead of a fire front, starting up spot fires all over.

And because of the steep and rocky terrain, firefighting hand crews and bulldozers might struggle to dig fire lines meant to help contain the fire.

Even with water drops from helicopters, containing a fire in nightmarish fall conditions can be all but impossible.

“We know that fire history tells us on a high risk day, if we don’t suppress a fire within the first 10 minutes, it has a high probability of extending to the Pacific,” Smith said.

Drew Smith is a fire behavior analyst with the Los Angeles County Fire Department.

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Jacob Margolis

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LAist

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Smith estimates that it'd take one of these worst case scenario fires about four hours to sweep westward, from the San Fernando Valley to the Pacific Ocean, destroying communities along the way. Just as we saw during the Woolsey Fire in 2018, which made its way 17 miles across L.A. to Malibu in less than 24 hours, destroying 1,600 structures and killing killing three.

"Don't get lured into a false sense of security because we've had a very passive fire season in Los Angeles County," said Smith. "Under the right conditions, we have a high potential for a devastating fire in the Santa Monica Mountains that hasn't seen fire frequency in 25 years."

Topanga isn't the sole community at risk, the threat really applies to those throughout the Santa Monicas.

A key staging area: 69 Bravo

The helipad Smith and I were standing on is called 69 Bravo, and it’ll likely be one of the most important staging areas for firefighters when one of these fires does break out.

It sits at about 2,600 feet above sea level, offering views of Newhall Pass on one side and the Pacific on the other. Below the pads are four 8,000 gallon water tanks that automatically refill, there to be drawn on by helicopters and fire trucks that are working to head off flames on their run to the ocean.

The 69 Bravo helipad sits at about 2,600 feet in the Santa Monica Mountains. It offers views of the Transverse Ranges, the San Fernando Valley and the Pacific Ocean. A critical spot for firefighters battling flames nearby.

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Jacob Margolis

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LAist

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The four, 8,000 gallon tanks at 69 Bravo have open tops so that firetrucks and helicopters can draw directly from them. They automatically refill.

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Jacob Margolis

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LAist

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You can see a live view here.

How do you know if conditions are ripe for an extreme fire?

It’s quite likely that many fires will be started – all by people – in the coming months. Though, each won’t become a Woolsey level event.

So how do you know if you should be worried?

Smith laid out some of the key conditions he looks for to figure out if a fire is going to move fast:

• Temperatures above 80 degrees
• Relative humidities in the single digits
• Live plants with moisture levels at 80% or less (they’re usually around 55% by the fall)
• Strong, gusty winds

If you want to keep it simple, look out for red flag warnings from the National Weather Service, which indicate that extreme fire behavior is possible.

Check out their Fire Weather Snooper, which presents data from weather stations that are entering or in red flag territory.

On average we get eight red flag events per year, according to Smith, and on average each lasts three days.

How you can prepare and respond

If you live in a high risk area like Topanga Canyon and a red flag event is on its way:

Unsure if you live in a high risk area? Check out the state's Fire Severity Zone map for your county.

Listen to our podcast

How did wildfire risks get so bad? What can you do to stay safe? We have answers in our 2022 podcast, "The Big Burn," from LAist Studios.

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Jacob and retired L.A. County Fire Captain Derek Bart answer your burning questions.

The Big Burn: The Advice Episode

Jacob and retired L.A. County Fire Captain Derek Bart answer your burning questions.

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WASHINGTON — The Department of Transportation is doubling down on its campaign against "DEI bike lanes," as Transportation Secretary Sean Duffy called them in a social media post earlier this month.

The Federal Highway Administration has quietly stripped bike lanes, speed cameras and several other best practices from a list of "Proven Safety Countermeasures," as they're known, that have been shown to reduce crashes and save lives.

The FHWA says the changes to its website, which have not been previously reported, are part of a broader review of safety countermeasures to ensure they align with current DOT policies and the administration's priorities. But critics say the Trump administration is undermining safety strategies that have already been proven to work.

"We should be making decisions about safety based on evidence," Stephanie Pollack, the former acting administrator of the FHWA under President Joe Biden, told NPR. "It's hard for me to understand how you could say you're putting safety first, and then make arbitrary decisions about what does and doesn't improve safety."

Pollack oversaw the most recent expansion of the Proven Safety Countermeasures program in 2021, when the list grew to a total of 28 recommended strategies for state and local planners to consider. In recent weeks, she said, the FHWA has removed five of those strategies, including bike lanes, speed safety cameras, variable speed limits and two other recommendations.

The FHWA has not publicly announced or explained the decision to cut the list of safety strategies from 28 items to the current total of 23.

In a statement to NPR, an FHWA spokesperson said the DOT is "taking action to reverse the last administration's policies that decreased lane capacity and increased congestion."

"Drivers paying taxes and vehicle fees expect their dollars to be reinvested into our roads, not social initiatives that burden their commutes," the statement said. "Under Secretary Duffy, the Department is getting back to basics and putting safety first."

Bike lanes are not a new target for the DOT. The Trump administration previously tried to remove a stretch of bike lanes around the National Mall in Washington, D.C., and pulled back funding for projects across the country that it deemed "hostile" to cars.

It's not clear exactly when the FHWA dropped these safety strategies from its website. Safety advocates say they first noticed the change late last week, after the DOT announced more than $1.7 billion in discretionary grants that included no funding for bike lanes or pedestrian projects. The Biden administration, by contrast, had used the same program to fund hundreds of millions of dollars in bike lanes and trails nationwide.

On Tuesday, July 7, the same day DOT announced the grants, Transportation Secretary Sean Duffy said in a post on X that the Biden administration "used YOUR MONEY for DEI bike lanes and climate change." In response, some of the administration's critics noted that the federal government itself had previously acknowledged that bicycle lanes make roads safer.

By last weekend, bike lanes and the four other strategies had been stripped from the FHWA's website.

The list of Proven Safety Countermeasures does not directly affect how the government funds projects. FHWA distributes tens of billions of dollars each year to the states, which decide how to spend them. But safety advocates say the list can have a big influence on decisions at the state and local level.

"It's not just changing the web page, but it's really going to put lifesaving projects at risk," said Josh Naramore, a policy expert at NACTO, the National Association of City Transportation Officials.

"That list of approved safety countermeasures and all the research really helped change the game for local agencies and even for states to have conversations with the federal government, with state departments of transportation, and even with regional planning agencies," Naramore told NPR. "So you're essentially taking tools out of the toolkit that would be available for them."

For example, safety advocates worry it will now be harder for state and local authorities to make the case for speed cameras, which have faced significant pushback from drivers despite evidence that they make roads safer.

Speed cameras can reduce crashes on urban arterial roads by as much as half, according to a booklet published by the FHWA in 2021 when it announced the expanded list of Proven Safety Countermeasures. In the same document, the FHWA said that adding a bike lane could cut crashes on a two-lane road by as much as 30%. For a four-lane road, that number jumped to 49%.

Former FHWA staff say the agency based its conclusions on rigorous analysis.

"We had a team evaluate the research literature and identify countermeasures that are effective," said Michael Griffith, who worked for more than a decade in the safety office at FHWA before retiring from the agency in 2022. "'Proven' is basically backed by sound research, research that we have confidence in."

More than 36,000 people were killed on U.S. roads last year, though that number has declined since 2021. The number of pedestrians killed in the U.S. has also been falling since 2022, when it reached a four-decade high, though it's still higher than before the COVID-19 pandemic.

Overall, safety advocates say U.S. roads are far less safe than those in other developed countries that are equally attached to driving, including Canada.

"We're still struggling in the United States with a completely unacceptable number of roadway deaths," Pollack said. "These measures are one of the most important tools that the federal government has to help state and local transportation officials make smart decisions about how to make their roads safer. And they need to be credible."
Copyright 2026 NPR

U.S. Immigration and Customs Enforcement has detained more than 650 children in California under President Donald Trump’s second term, an EdSource analysis of federal data has found. Most arrests happened in California communities, rather than at the border, and involved minors who resided and attended school in the state.

The number of children detained in the state’s interior rose 90% during the first year of Trump’s second term compared to the prior year under the Biden administration, our analysis shows. More than 100 of the children detained under Trump were age 5 or under.

The rise in child detainments in the state’s interior began soon after Trump took office in January 2025. Trump won office on a promise to carry out mass deportations, vowing to deport “illegal immigrant killers, rapists, and drug dealers from our streets and [send] them back where they belong.”

Starting immediately and escalating over the summer of 2025, ICE agents have conducted large-scale operations in neighborhoods with large immigrant populations. Some children have been detained while accompanying parents to routine ICE check-ins. The practices reflect an escalation in enforcement activity that state education officials say has kept some students from attending school.

The children detained so far include a 17-year-old honors student from Los Angeles County who was detained in June 2025 and deported to Guatemala; a 9-year-old boy from Torrance who, along with his father, was detained at an immigration hearing that same month and deported to Honduras; and a 6-year-old deaf student who, in March, was detained without his hearing aids and deported to Colombia along with his mother and younger brother.

Medical professionals and advocates contend that no period of time in detention is safe for children. In 2016, a Department of Homeland Security Advisory Committee recommended discontinuing the use of family detention — the practice of detaining children with their parents as they await the outcome of their case — writing “detention is never in the best interest of children.”

“The kids that are in detention in these facilities, they’re losing their childhoods every single day that they’re in there,” said Wendy Cervantes, who oversees research and advocacy of immigrant families at the Washington, D.C.-based Center for Law and Social Policy.

A spokesperson from the Department of Homeland Security said in a statement to EdSource that this data is “being cherry-picked” to “peddle a false narrative.” ICE, the spokesperson said, is “not targeting children.”

“ICE does not separate families,” the unidentified DHS spokesperson said. “Parents are asked if they want to be removed with their children, or ICE will place the children with a safe person the parent designates.”

What the data shows

EdSource analyzed federal detainment data obtained by the Deportation Data Project at UC Berkeley and UCLA, capturing federal detainments between October 2022 and March 2026. The analysis found:

• There were 666 Californian children detained during the Trump administration. Of those, 408 children — or 61% — were deported. Under the Biden administration, 8% were ultimately deported. 
• Nationally, children have been held longer in detention under Trump than under Biden. The median length of detention jumped from one day under Biden to eight days under Trump. This does not include 335 children who had not yet been released from detention as of March 11, the last day for which data was available.
• Nationally, the average number of children in detention jumped nearly 10-fold under Trump, due in part to these longer detention stays. Under the last year of the Biden administration, there were, on average, 23 children held in detention each day. During Trump’s first year of his second term, that figure rose to 219.

The Trump administration is going after “the worst of the worst,” including pedophiles and rapists, a DHS spokesperson said.

“Many of the individuals that are counted as ‘non-criminals’ are actually terrorists, human rights abusers, gangsters and more; they just don’t have a rap sheet in the U.S.,” the DHS spokesperson said. “Further, every single one of these individuals committed a crime when they came into this country illegally.”

According to EdSource’s analysis of ICE’s data, none of the 666 detained children in California under Trump had any felonies or previous convictions listed. Twelve minors were listed as having pending criminal charges, including three girls between ages 6 and 9. The nature of those pending charges is not disclosed. The ICE data does not include information about any connected family members or their cases.

During his second term, Trump reopened family detention facilities, including the South Texas Family Residential Center in Dilley and the Karnes County Immigration Processing Center in Texas. In California, 250 detained children were ultimately sent to these family facilities.

A 12-year-old from Los Angeles, identified by the initials G.S., gave a declaration in federal court describing their experience living inside the South Texas Family Residential Center during a 64-day detainment with their parents and younger sister.

The child said ICE agents detained the family during a routine ICE check-in in Los Angeles. The family lost their apartment and belongings, according to the May 22 declaration. The status of the child and their family is unclear.

“It makes me feel hopeless to be here for so long, because now it’ll take me and my whole family a long time to get back to normal because of how much money and education we have lost,” the child said in their declaration. “If I could change one thing here, it would be to shut down the whole facility.”

Trump vs. Biden

One major difference between the Trump and Biden presidencies has been the number of children who arrived at the border. Of the 5,676 children detained in California between October 2022 and when Trump started his second term, 94% were apprehended at the border.

Biden prioritized placing some of the unaccompanied minors who arrived at the border with sponsors, Cervantes said, and ended the practice of family detention that resumed under Trump. Cervantes said the Biden administration largely followed the Flores Settlement Agreement.

The 1997 agreement provided rights for immigrant children in U.S. custody and prohibited most detentions from lasting more than 20 days. The declaration from the detained Los Angeles minor is one of several included from children and parents in a lawsuit claiming their rights under the Flores agreement have been violated.

Attorneys representing the Trump administration in this case argued in court in June 2025 that conditions at detention centers for children have “drastically improved” since the original agreement. Referencing the high number of immigrants at the border, the administration said the Flores Settlement Agreement “hamstrung the government in addressing this catastrophic illegal migration.”

Apprehension in California

During the first year of Trump’s second term, adults were detained in California’s interior at more than four times the rate they were held during the last year of Biden’s administration, while the rate of child detainments rose by 90%.

California has passed laws and issued guidance with the aim of shielding schools from federal immigration enforcement. For instance, under California law, school officials cannot allow immigration officials on campus without a judicial warrant.

In some California communities, parents, teachers and neighbors have formed rapid-response networks to report sightings of ICE agents for students and their families to avoid while commuting to and from school.

The sites of some immigration enforcement operations, such as job sites, may be more likely to target adults than children. However, Cervantes notes that some teens working at restaurants or as lifeguards at pools have been apprehended in ICE raids while they’re on the job. She also disputes the Trump administration’s claim that children have not been targets of immigration enforcement.

Children may not be detained at the same rates that adults are, but medical experts warn that any time spent in detention is too long for their well-being.

Shortly after Trump began his second term, medical professionals wrote an open letter to the president and then-Department of Homeland Security Secretary Kristi Noem warning that “detention itself poses a threat to child health.”

“We have endless amounts of research and expert testimony on how harmful detention is to children,” said Michelle Brané, who was the immigration detention ombudsman under the Biden administration and now leads the nonprofit Together and Free, which supports asylum-seeking families. “You see kids with extreme depression. You see kids really regressing, kids going back to wetting the bed after they’ve been trained for years.”

EdSource Reporter Zaidee Stavely and Data Journalist Daniel J. Willis contributed to this story.

A water main break near Palm Avenue and Harratt Street sent waters flooding through West Hollywood early Thursday, causing a massive sink hole.

Roads have been closed off and residents warned to stay out of the area, with dramatic footage posted online of water rushing down streets and cars slamming into each other:

Because of the highly pressurized water system, emergency crews said Thursday they must work slowly and carefully to avoid causing more damage. Several roads were closed and Metro system buses detoured — see details below.

A leak from an over 100-year-old trunk line caused the rupture, authorities said. The line has been shut down, as well as two large valves to the east and west. Anselmo Collins, chief operating officer of the Los Angeles Department of Water and Power, assured residents that drinking water is not affected and remains safe to drink.

“We are also coordinating on the ground with law enforcement and will be working with traffic control as we make progress and assess and begin repairs,” wrote LADWP in a statement.

Residents were are encouraged to take pictures of any damage from the flooding in case a claim needs to be filed later.

What you need to know about affected areas:

Avoid the area if at all possible. But if you need to venture in, here’s what you need to know:

Road Closures:

• Eastbound Sunset Boulevard is closed between Larrabee Street and Sherbourne Drive.
• Eastbound Holloway Drive is closed between Sunset Boulevard and Westmount Drive.
• Eastbound Santa Monica Boulevard is closed between San Vicente Boulevard and Hancock Drive.

The following bus routes have been delayed or detoured.

• 2 Line (Sunset)
• 4 Line (Santa Monica)
• 10/48 (Melrose)
• 14/37 (Beverly)
• 16 Line (3rd Street)
• 20 Line (Wilshire)
• 28 Line (Olympic)
• 30 Line (Pico)
• 35 Line (Washington)
• 134 Line (PCH)
• 217 Line (Fairfax)
• 602 Line (Sunset)
• 617 Line (Robertson)

LAist will continue to update this story as we learn more.

Potentially dangerous heat is still in store for Southern California Thursday, but there is some respite on the horizon.

An extreme heat warning from the National Weather Service remains in place for much of the region through 8 p.m. Thursday.

Inland valleys across L.A., Riverside and San Bernardino counties are expected to see highs of up to 104 degrees in some places. Temperatures in inland Orange County will likely get up into the 90s. Coastal areas and beaches will hover in the 80s.

The high temperatures are expected to pose a high risk of heat-related illnesses, especially for people over 65, young children and other sensitive populations. People who work outdoors or do not have air conditioning are also particularly at risk.

Heat wave review

NWS forecasters said Thursday that temperatures during this week’s heat wave peaked on Wednesday relatively close to what they expected: Woodland Hills hit 107 degrees, Burbank hit 97, and downtown Los Angeles hit 94.

High humidity also played into the heat this week, as expected, driven by tropical moisture flowing into the region from the south.

Forecasters said some coastal areas saw up to 70% humidity around midday Wednesday. Humidity in the valleys was generally between 30% and 40%.

“That's pretty muggy,” said National Weather Service meteorologist Mike Wofford. “It’s definitely not Miami humidity, but it’s definitely more than we’re used to.”

Cooldown in sight

Thankfully, more comfortable summer weather is on the way.

Temperatures will start to trend downward Thursday along the coast, while a more noticeable cooling trend will settle in across the region Friday.

The weather this weekend will still be warm, especially inland. But forecasters say temperatures will return to normal levels for this time of year by Saturday and could even dip lower than normal.

Weekend highs will be in the mid 80s in downtown L.A., up to 90 in the valleys and in the 70s along the coast.

Increased offshore winds are also expected to boost the marine layer and bring morning clouds and fog to many coastal areas Friday morning.