The Brief

There’s a term you’ve probably come across more than once while traveling around Southern California: SigAlert.

It’s one of the best ways to keep on top of traffic delays in near real-time, but they’re also a harbinger of stress. If a SigAlert is issued on your route, good luck getting to your destination on time. There could be a car stalled on the freeway, a car crash or any number of other problems shutting down lanes.

But do you know why they're called SigAlerts? They actually started out as a radio tool.

How did SigAlerts begin?

Before SigAlerts lived online in an interactive map, and were issued by the California Highway Patrol, they came from a specialized radio receiver that broadcast recorded messages.

In the early ‘50s, civil defense officials had been looking into how to make an alert system in case of an attack from the U.S.S.R., which became the brainchild of Loyd Sigmon, executive vice president at L.A.’s KMPC radio station.

The system was first officially tested in November 1954. In City Hall, officials pressed a red button that took KMPC off air and instead broadcast civil defense information to listeners. Think of it like a Cold War version of the emergency alert system — the idea was to get urgent updates out fast, like potential attacks or major flooding.

A number of Southern California broadcasters signed on to install the necessary equipment, including KNX. Devices were also installed at the offices of civil defense personnel to speed up the process.

Sigmon also thought of a more daily use for the system. He approached the L.A. Police Department with an idea: set up a process for police departments to call the station when major traffic jams occur. But that wasn't really feasible for officers to do every time.

It’s unclear how many times Sigmon customized devices to use the SigAlert system in different ways, but according to SigAlert researcher Harry Marnell, for the LAPD, he used a $600 shortwave receiver and tape-recording device that booted up with a special tone. The LAPD would receive details from other agencies and then press a button to record and send that special tone with the information to radio stations (like a high-stakes telephone game).

The system, which was put into widespread use in Greater L.A. on Labor Day 1955, was intended to tell the public about a range of concerns: major freeway tie-ups, smog alerts, fire, explosions, dense fog and “atomic” attacks.

Today, it’s just about major traffic delays. Relaying of emergency information lies with things like the emergency alert system. But Sigmon has gone down in history as pioneering a way for mass communication. He died in 2004 when he was 95.

How an early SigAlert caused traffic

Ironically, a SigAlert sort of created a big traffic jam.

In January 1956, a major train derailment happened — the Santa Fe train wreck — and an alert went out asking for any available doctors and nurses to respond. But so many people responded — including nosy onlookers — that it turned into an even bigger mess.

Priests, who were asked to come for spiritual help, were caught in traffic or turned away because of the amount of people driving over.

The derailment killed 30 people and injured 117. But the LAPD’s use of the SigAlert called into question exactly how effective (or ineffective) it was to broadcast such requests for help without a way to control the traffic build-up.

The L.A. Times put out an editorial days after the wreck that called out local authorities for poorly managing the emergency.

And while it praised how the SigAlert brought a swift medical response, the editorial board wrote that “nobody had the wit to stop” the onlookers on the highways.

L.A. County health officials Wednesday confirmed the county's seventh measles case this year — a traveler who passed through Hollywood Burbank Airport on the morning of June 17.

They're warning people who may have come in contact with the person of possible exposure to the highly contagious virus.

What you should know: Public health officials say the infected traveler arrived on Southwest Airlines Flight 4245 Gate A4 on June 17 at the Hollywood Burbank Airport. Anyone who was at that gate between 8:45 to 9:45 a.m. may have been exposed.

Officials also noted that people who were at the Thrifty Rental Car Service on June 17 from 9:20 to 10:20 a.m. and on June 18 from 10:25 to 11:25 a.m. may have been exposed. That's located at 2627 N. Hollywood Way in Burbank.

What if I was on the flight? Public health officials say passengers sitting next to the traveler will be notified by local health departments and should monitor for symptoms. Keep in mind those symptoms could appear up to three weeks after you were exposed.

Symptoms to look out for: Common symptoms include runny nose, fever cough, or a rash. It's also important if you develop these symptoms, don't just walk into a health care center without calling ahead first.

For people exposed on June 17, the last day to monitor for symptoms is July 8. For those exposed on June 18, the last day to monitor for symptoms is July 19.

How can I protect myself?: It's important to check if you are vaccinated against the measles. As health officials noted in the news release reporting the latest case: "The most effective way to protect yourself and your family is with the measles-mumps-rubella (MMR) vaccine."

The Los Angeles Unified Board voted unanimously to appoint Andres Chait, a longtime district administrator, as superintendent days after his predecessor resigned.

 “This board's decision reflects the confidence in Mr. Chait's leadership, his decades of service to Los Angeles Unified, and his demonstrated ability to guide the district during this period of transition,” said board President Scott Schmerelson.

The board met privately to discuss the district’s top job three days after Alberto Carvalho resigned. Carvalho wrote in a letter that he was leaving “because I believe our schools must remain focused on students and learning without distraction.”

The board placed Carvalho on paid administrative leave following FBI searches of his home and district office in February and appointed Chait acting superintendent. Carvalho has not been charged with a crime and has maintained his innocence.

Who is Andres Chait?

Chait rose through the ranks from teacher to administrator at LAUSD over nearly three decades. The responsibilities of his most recent role, chief of school operations, included overseeing school safety, athletics and the district’s office of emergency management.

Chait thanked the board, the community and his family after the announcement Wednesday and reflected on his first day as a kindergarten teacher 30 years ago. “ I was probably more nervous than the kids were, but I knew then that this was a place where I could make a positive difference in the lives of students and families,” Chait said. “I've always known that there is no greater accelerator of change and opportunity than the schoolhouse, and that is still true today.”

What is the superintendent responsible for?

LAUSD is the country’s second-largest school district, employs 83,000 people and enrolls more than 400,000 students across more than 1,000 schools. Despite recent gains in student test scores, the majority of students are not proficient in reading and math skills for their grade level. The district also faces looming financial challenges from declining enrollment — which is tied to state funding — and federal investigations into programs designed to help underserved students succeed.

This is a developing story and will be updated.

A former state parks superintendent who oversaw Orange County beaches was charged Wednesday with secretly filming naked male lifeguards and other workers inside the locker room at Bolsa Chica State Beach. The former superintendent, Kevin Pearsall, is also accused of sending some of the images to two other men.

What charges does he face?

Pearsall, 59, of Long Beach, faces five felony counts of eavesdropping, 23 misdemeanor counts of secretly filming another and three misdemeanor counts of unlawful dissemination of private recordings. If convicted on all charges, he faces a maximum sentence of 18 years and eight months behind bars.

Scott C. Thomas, a defense attorney representing Pearsall, declined to comment in the wake of the charges being announced by the Orange County District Attorney's office. Pearsall is scheduled to be arraigned Aug. 6 and could enter a plea at that time.

Details of the investigation

In July 2025, a California State Parks officer discovered a USB stick with a hidden camera in the men's locker room at Bolsa Chica State Beach Lifeguard Headquarters. The officer contacted California Highway Patrol, which launched an investigation.

The investigation found Pearsall allegedly had recorded numerous secret videos in the locker room over an 11-month period beginning in August 2024, according to the DA's announcement. Pearsall retired from his job shortly after CHP served search warrants in the case. He turned himself in earlier this week.

State Parks reaction

Marty Greenstein, a spokesperson for California State Parks, told LAist the agency “takes these charges very seriously and has fully cooperated with law enforcement through every step of the investigation.” Greenstein declined to comment further, citing the active criminal investigation.

Making your way through South Coast Plaza — the sleek consumer cathedral in Costa Mesa, a sort of mall of malls — past Uniqlo window displays and Pop Mart blind boxes, there's a good chance you'll eventually land at Tiny's, the new casual restaurant from Chef Sang Yoon.

The burger shack-meets-Asian convenience store is the latest from Yoon, best known for Father's Office, the Los Angeles institution where he's spent two decades running one of the city's most uncompromising kitchens — no substitutions, no exceptions.

Tiny’s marks Yoon’s first venture into Orange County — a deliberately accessible entry point for a chef who has spent decades at the top of L.A.'s gastropub scene.

The concept

Tiny's is the place Yoon wanted to exist as a kid.

Inside, you're greeted by shelves stocked in the style of a konbini, the beloved Japanese convenience corner store, with cilantro-flavored Doritos from China, elote-flavored Turtle Chips from Korea and, for the purists, the requisite Japanese Kit-Kats and Pocky too.

At the counter, a friendly employee greets you beneath a letterboard menu anchored by Yoon’s signature 30-day dry-aged beef burger. Starting at $9 for a plain burger, up to $12 for the Tokyo Dog dressed in bonito flakes and furikake, there's also salt and vinegar tots, french fries, miso mac 'n' cheese and soft serve that runs from Straus vanilla to Pineapple Dole Whip, available as a swirl, cup, cone or float. That's the menu, streamlined by design.

Chef Sang Yoon's cheeseburger and Tokyo Dog at Tiny's, his new fast-casual concept inside South Coast Plaza in Costa Mesa

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Courtesy Tiny's Burger

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For Yoon, the son of Korean immigrants who grew up between two worlds, the idea of opening a burger stand with a konbini was about tapping into the happy place of his memories: after school with friends, trying out the latest snacks to hit the market to Friday nights with the entire family celebrating after a long week of grinding it out with burgers and chili fries.

"The corner burger stand is where life happened. ... What if those two of my favorite things were under one roof?" said Yoon.

Tiny the dog

Inspiration for the name Tiny’s came from a somewhat unlikely place: Yoon’s beloved Cavalier King Charles Spaniel. Yoon describes her as appearing extremely cute and friendly, but in reality, she was actually sassy and judgmental. Illustrations bearing Tiny’s "don't mess with me" vibe can be seen throughout the restaurant.

“People would rather hear this from a sassy, cute dog than me. So I decided that we should channel Tiny. And let this belong to her," Yoon said.

The food

The cheeseburger itself is simple: a thin patty topped with melted American cheese and Tiny's signature sauce — a blend of Kewpie mayo, caramelized gochujang, ssamjang and tomato — finished with pickle chips and a bed of lettuce.

What sets it apart is what you can’t see, the same 30-day dry-aged chuck Yoon has used at Father’s Office for over 25 years.

“I still don’t think there’s any product superior to that for the purpose of a hamburger,” he said.

The spread at Tiny's includes the cheeseburger, miso mac 'n' cheese, chicken nuggets, tater tots, fries and a jammy egg sando — a konbini staple in Japan.

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Courtesy Tiny's Burger

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The nuggets ($10) had a crispy, craggy exterior finished with visible seasoning crystals, a small but deliberate touch, and came with a fresh herbaceous dipping sauce. As for the chili fries ($8), the chili itself was sufficient as an L.A.-style chili (think Tommy's), but since Lao Gan Ma chili crisp was promised in the name, I was expecting that distinctive, crunchy, fermented kick — but left wanting more of it. It felt more like a whisper than a statement.

The miso mac 'n' cheese ($6) was a highlight of the meal, especially for someone who doesn't usually order mac 'n' cheese. Fresh ridged elbow pasta with a proper chew in each bite, and salty morsels of miso folded into a tight cheese sauce had me picking up forkfuls until it was mostly gone. Consider my position reconsidered.

Encouraged, I went back and ordered a Dole Whip ($7). The electric, tangy flavor, paired with the soft creaminess, served as a suitable exclamation point for my lunch that day.

With Tiny's, Yoon has built his most personal restaurant — accessible in price, but uncompromising in intention.

Could mall food now be on a new trajectory? Perhaps we've finally transcended corn dogs at Hot Dog on a Stick and cinnamon rolls at Cinnabon.

After dining at Tiny’s, all signs point to yes.