Sandy Fire in Simi Valley Explodes to 1,386 Acres With Thousands Evacuated

A fast-moving wildfire ripped through Simi Valley on Monday, growing from a small brush fire to nearly 1,400 acres in roughly 12 hours. The Sandy Fire forced tens of thousands of residents from their homes, destroyed at least one house, and had firefighters scrambling to build containment lines as wind gusts and bone-dry conditions pushed the flames across Ventura County. By Tuesday morning, the fire sat at just 5% contained.

Here's everything you need to know about where the fire started, who's been affected, and what's happening right now.

How the Sandy Fire Started

The Sandy Fire was first reported around 10:30 a.m. on Monday, May 18, 2026, in the 600 block of Sandy Avenue in Simi Valley, near Sycamore Park. The city sits about 37 to 40 miles northwest of downtown Los Angeles, right up against the foothills where dry brush and residential neighborhoods press up against each other.

Residents who called 911 initially thought someone was having a barbecue. That misread didn't last long. Within minutes, wind-driven flames were tearing across the hillside.

As for what actually sparked it, the Simi Valley Police Department reported that an individual "hit a rock with a tractor" near the 2600 block of Rudolph Drive. According to Sgt. Rick Morton, when people are clearing large properties, they sometimes strike something hidden beneath the surface, and whatever they're clearing catches fire. Ring doorbell video captured a tractor leaving the area right around the time the fire ignited. The cause remains under official investigation, but that tractor footage and the police report paint a pretty clear picture of what likely happened.

How Fast the Fire Spread

The speed of this fire is what made it so dangerous. At initial report, the Sandy Fire was just 10 acres. By shortly before noon on Monday, it had already hit 184 acres. By the time evening rolled around, it had blown past 720 acres. And by early Tuesday morning, it sat at 1,386 acres with zero percent containment.

Ventura County Fire Department Public Information Officer Andrew Dowd called it a "wind-driven fire," which is really the worst kind you can get in Southern California. Morning wind gusts topped 30 mph, and the National Weather Service had advisories out for northeast winds with gusts of 40 to 50 mph in nearby mountain areas, including the Santa Susana Mountains. Combine that with high temperatures, low humidity, and extremely dry brush, and you get a fire that moves faster than crews can get ahead of it.

Simi Valley resident Ron Weschler described what it was like on the ground. "All of a sudden, everything just turned black," he said. "The wind was blowing so hard, you couldn't breathe."

Evacuations Hit Thousands of Residents

This is where the human cost really starts to register. An estimated 17,000 residents were placed under mandatory evacuation orders, according to some reports. Other sources put the number closer to 24,000 people and more than 10,000 homes. Either way, a huge chunk of Simi Valley emptied out in a matter of hours.

Evacuation orders were issued for multiple zones, including Simi Valley zones 32, 33, 34, and 35, along with zones labeled MEIC-01, BURR-01, BELL-01, BELL-02, BELL-04, BELL-05, CHES-01, SASU-01, and SASU-02. The fire moved southwest toward Bell Canyon, prompting emergency alerts telling residents to get out immediately.

By Tuesday morning, evacuation warnings had spread beyond Ventura County into Los Angeles County. Communities including Agoura Hills, Calabasas, Hidden Hills, Chatsworth, and West Hills were all placed under evacuation warnings. Aerial footage from news helicopters showed neighbors loading animals into crates and spraying down dry vegetation with garden hoses, doing whatever they could before leaving.

An emergency shelter was opened at Rancho Santa Susana Community Park at 5005 E Los Angeles Avenue in Simi Valley for displaced residents.

One Home Destroyed, a Retired Couple Lost Everything

As of Tuesday, fire officials confirmed that at least one home was burned to the ground. It was located on Trickling Brook Court, where at least two burned-out cars were also found at the property. Neighbors and officials said the home belonged to a retired couple who had lived there for decades.

A Ventura County Fire spokesperson said, "Despite the incredible work that the firefighters did to protect homes in this neighborhood, we really feel for the residents that lost everything here."

That's the thing about these fires. You can have 750 firefighters on scene, helicopters dropping water around the clock, and dozers cutting lines through the brush, and it still only takes one bad gust to push flames past a defense line and into someone's living room. One home might not sound like much when you're reading numbers on a screen, but for the couple who lost it, that was everything.

Schools Shut Down Across the District

On Monday morning, with the fire burning dangerously close to several campuses, students from Crestview Elementary School and Mountain View Elementary School were evacuated by bus to Simi Valley High School at 5400 Cochran Street. By around 6:15 p.m. Monday, with at least seven schools sitting inside evacuation zones, the Simi Valley Unified School District made the call to cancel all classes on all campuses for Tuesday.

If you're a parent in the district, check the school district's website and local news for updates on when campuses will reopen. Given the 5% containment number and expected wind shifts, don't be surprised if closures extend beyond Tuesday.

The Firefighting Response

More than 750 firefighters from local and state agencies were assigned to the Sandy Fire by Tuesday morning. In the early hours of the blaze, 200 firefighters were on scene, supported by three air tankers and six helicopters running aggressive aerial suppression. The Los Angeles Fire Department deployed resources to support Ventura County crews as well.

Ventura County Fire spokesperson Rico Stanley said, "We have fixed-wings and we also have helicopters that are dropping water around the clock on this fire." Dowd added that night-vision-equipped helicopters were used overnight to target hotspots, which is not something you see on every fire.

Overnight, conditions finally cooperated a bit. Calmer winds and higher humidity levels tamped down fire activity, allowing crews to make real progress on containment lines. Dozers and hand crews worked directly along the fire's edge through the night, building and strengthening the perimeter. By Tuesday morning, that work pushed containment to 5%. That's still low, but it's a whole lot better than the zero they were sitting at all day Monday.

Governor Newsom and Federal Involvement

California Governor Gavin Newsom said he had been briefed on the fire and was actively monitoring the situation. His office activated state-level monitoring within hours of ignition, which tells you how seriously officials took this from the jump. Newsom also confirmed that California had secured assistance from FEMA, bringing federal resources into the response.

Los Angeles Mayor Karen Bass also said city officials were "closely monitoring" the fire, especially as evacuation warnings crept into LA County communities.

What's Coming Next

Fire officials were bracing for more trouble on Tuesday. Northeast winds with continued warm temperatures were expected, and the fire still had significant unburned areas within its interior that could flare up. The fire produced heavy smoke from those interior pockets, and terrain-driven winds were pushing fire activity toward the southeast.

PIO Andrew Dowd put it plainly: "This is a dynamic fire. We are expecting changes in the weather. We want to be prepared for it." Crews were being strategically positioned around the burn area to address potential flare-ups and hotspots as conditions shifted.

The broader outlook isn't encouraging either. Southern California precipitation since October was about 70% of average, temperatures in May have been consistently above normal, and dead fuel moisture is low. The coastal marine layer that usually brings some relief has been weaker than usual, especially in Southern California. All of that adds up to a landscape that's ready to burn at a moment's notice.

What to Do If You're in the Area

If you're under a mandatory evacuation order, leave. Don't wait. Don't try to save one more thing from the garage. Get your family, your pets, your documents, and go. The emergency shelter at Rancho Santa Susana Community Park (5005 E Los Angeles Avenue, Simi Valley, CA 93063) is open for displaced residents.

If you're under an evacuation warning in areas like Agoura Hills, Calabasas, Hidden Hills, Chatsworth, or West Hills, be ready to leave at a moment's notice. Pack a go bag, know your route, and keep your phone charged for emergency alerts.

No injuries have been reported so far, and keeping it that way means taking the warnings seriously. The firefighters working this fire are doing incredible work, but 5% containment with winds picking up means this thing is far from over. Stay aware, stay connected, and stay safe.