Tasha Fire Prompts Evacuations Near Newhall Pass as Investigators Search for a Mercedes

The Tasha Fire Santa Clarita incident began just before 6 p.m. Saturday and moved fast enough to trigger evacuation orders within a short window, as crews confronted flames on steep hillside terrain south of the city.

By later in the evening, the fire had burned roughly 20 acres and reached 30 percent containment, according to the Los Angeles County Fire Department.

Where It Started and How Crews Responded

The fire ignited near Sierra Highway and the Newhall Pass, an area where highway corridors cut through hills covered in dry late-summer vegetation.

Aerial footage captured by NewsChopper4 showed the shape of the fight. Ground crews worked on slopes steep enough to make footing difficult, while aircraft made passes overhead, laying down bright red retardant lines along the fire’s edges.

That combination is standard for foothill fires in Southern California. Retardant does not extinguish flames outright. It coats vegetation ahead of the fire to slow its advance, buying time for hand crews and engines to build containment lines where they can safely reach.

Evacuations Issued, Then Partially Lifted

Areas north of the 5 and 14 freeway split were placed under an evacuation order shortly after the fire broke out. That order has since been lifted.

Zones surrounding the fire remain under an evacuation warning, meaning residents should stay prepared to leave quickly if conditions shift.

The distinction matters. A warning is not a suggestion to relax. It signals that the threat has not passed and that officials want people packed, alert, and ready to move without delay if the fire changes direction.

An Investigation With a Specific Lead

Both the fire department and the Los Angeles County Sheriff’s Department are looking into what caused the blaze, including whether it was set intentionally.

Deputies have been searching for a silver or gray Mercedes sedan believed to have been in the area around the time the fire started.

That level of detail suggests investigators have something concrete to work from, whether a witness account, camera footage, or observations from responding personnel. Authorities have not said whether the vehicle’s occupants are considered suspects or potential witnesses.

Arson investigations in brush country often hinge on establishing an ignition point and then reconstructing who was present nearby in the minutes beforehand. Traffic cameras, dashcams, and doorbell footage frequently supply the missing pieces.

One of Several Fires Burning Saturday

The Tasha Fire was not an isolated event. Southern California spent Saturday contending with multiple simultaneous incidents.

The Walnut Fire burned in Burbank on the Verdugo Mountain hillside, forcing evacuations at a golf course and nature center.

The Holser Fire broke out near Piru in Ventura County.

All three ignited under the same conditions: high temperatures paired with low humidity and vegetation that has been drying since spring.

Why Early August Is So Dangerous Here

By this point in the calendar, Southern California’s chaparral and grasses have gone months without meaningful rain. Fuel moisture drops to levels where a small ignition source can produce rapid spread within minutes.

Terrain compounds the problem. Fire moves uphill far faster than across flat ground, because rising heat preheats the vegetation above it. Canyon topography channels wind in unpredictable directions, which is why officials rarely make confident predictions about where a hillside fire will go next.

The Newhall Pass area combines all of these factors with heavy traffic corridors, which raises ignition risk from vehicles alongside everything else.

Multiple fires burning at once also strains resources. Aircraft, hand crews, and engines have to be allocated across incidents, and a fire that might otherwise receive an overwhelming initial response sometimes gets less.

What Residents Should Do

For anyone in the warning zones or nearby communities, a few steps are worth taking now rather than later.

Keep a go bag ready with identification, medications, phone chargers, and essentials so departure requires no thinking.

Park vehicles facing outward and keep the fuel tank reasonably full.

Sign up for county emergency alerts rather than relying on social media, where outdated information circulates freely during active incidents.

Check on neighbors who may have mobility limitations, livestock, or no reliable way to receive notifications.

If a warning becomes an order, leave immediately. Roads in canyon areas narrow quickly and congest fast when everyone moves at once.

What Happens Next

Crews will work through the night and into Sunday raising containment and mopping up hot spots, the unglamorous phase that prevents a fire from reigniting days later.

Investigators will continue pursuing the cause, including the search for the Mercedes sedan.

Twenty acres is a modest footprint by California standards, and the fact that it stayed that small on steep terrain in August reflects a rapid, well-supported initial attack. That said, evacuation warnings remain active, and residents in the surrounding zones should treat the situation as unresolved until officials say otherwise.