Congress has cut federal funding for public media — a $3.4 million loss for LAist. We count on readers like you to protect our nonprofit newsroom. Become a monthly member and sustain local journalism.
Bobcat Fire: More Than 55K Acres Burned; Flames Close To Mt. Wilson

This story is no longer being updated. Follow our coverage of the Bobcat Fire for Friday, Sept. 18>>
Yesterday's coverage:
EVENING UPDATE
Jump to: Basics | Evacuations | Weather Conditions | About Mt. Wilson
The Bobcat Fire continues to grow in the Angeles National Forest as the firefight enters its 12th day.
Late Thursday, officials said firefighters are continuing to protect Mt. Wilson. Images from the fire scene show the flames getting increasingly close to the history observatory.
#BobcatFire or back fire? We can't tell from here, but we sure hope it's the latter. pic.twitter.com/cfq56Azdr8
— Mount Wilson Observatory (@MtWilsonObs) September 18, 2020
That fight continued a day after the Highway 2 yesterday, prompting new evacuation warnings for communities to the north of the fire's path where the San Gabriel Mountains meet the High Desert.
Here's what else we know about the fire so far today.
THE BASICS
- Acreage: 55,617 acres
- Containment: 9%
- Resources deployed: 1,158 firefighters
The blaze erupted on Sept. 6 near the Cogswell Dam and then spread rapidly amid an intense, record-breaking heat wave, prompting evacuation orders for Mt. Wilson Observatory. The cause is under investigation.
Firefighters continue to work in steep difficult terrain with help from helicopters and planes.
Firefighters had been working to contain a spot fire that had jumped Highway 2 and burned roughly 700-1,000 acres in the area of Cooper Canyon. Officials later confirmed the blaze had crossed fully the highway near the junction with Highway 39 and continued to advance, threatening communities to the north.
Mt. Wilson Observatory still stands after a second harrowing night thanks to the efforts of firefighters who dug in to defend the historic science station as the Bobcat Fire closed in.
On Tuesday afternoon, Angeles National Forest officials reported the blaze was within 500 feet of the facility, which is arguably one of the world's most important spots for scientific discovery. Firefighters have used a variety of tactics to protect the observatory, including carving out lines by hand and with bulldozers, setting strategic backfires and using aircraft to make water drops.
The facility continued to be threatened overnight Wednesday.
The #BobcatFire is still on our back. We thought we might have it down, but...... The more active area appears to be moving northward. pic.twitter.com/lCgOK3h0aO
— Mount Wilson Observatory (@MtWilsonObs) September 17, 2020
CLOSURES
- The Angeles National Forest remains closed through Sept. 21 — along with all other national forests in California
- State Route 39 is closed at Old Gabriel Canyon Road to State Route 2
- State Route 2 is closed from Upper Big Tujunga Canyon Road to Big Pines
- Upper Big Tujunga Canyon Road
- Mt. Wilson Road
- Glendora Mountain Road
- Glendora Ridge Road
EVACUATIONS
Emergency officials issued new evacuation warnings for residents in the following areas north of the fire's path:
- North of Angeles Crest North and between Clear Creek Station and Hwy 39
- Juniper Hills
- Devils Punchbowl
- Paradise Springs
- Area east of Devils Punch Bowl Road, south of the Big Pines Hwy, north of the Big Rock Creek, and west of Jackson Lake
"If you have not already done so, gather your family, pets, important papers, medications and any emergency supplies, and be preapred to evacuate the area if ordered," officials wrote in an alert.
On Wednesday afternoon, Arcadia city officials lifted evacuation orders for residents in Arcadia and the adjacent city of Sierra Madre who live north of Elkins Avenue and east of Santa Anita Avenue. Residents of those neighborhoods were allowed to return to their homes as of 4 p.m yesterday.
Evacuation warnings remain in effect for those neighborhoods and all other communities along the foothills:
Tonight authorities issued an evacuation warning for Wrightwood and Pinon Hills. Evacuation route is Hwy 2 to Phelan or Hwy 138 to I-15.
- Monrovia
- Arcadia
- Sierra Madre
- Bradbury
- Duarte
- Pasadena
- Altadena
"Residents should have evacuation plans in place, organize their emergency evacuation supplies, and have essential evacuation personal belongings easily accessible," U.S. Forest Service officials wrote on the fire incident page. "Vehicles should be fully fueled, facing out in their driveways and ready to leave."
Evacuation orders have been lifted for residents in the East Fork area, which includes Camp Williams and the River Community Center. Residents returning to their homes were advised to use Glendora Mountain Road, as State Route 39 remains closed.
SHELTER SITES
A Red Cross Evacuation Center was re-established at Santa Anita Park, 285 W. Huntington Drive (entry at Gate 5).
L.A. County officials said a shelter site for horses has been established at the Pomona Fairplex (entry at Gate 12).
For residents to the north of the burn zone, accomodations for 300 large animals are available at the Antelope Valley Fairgrounds, 2551 W. Avenue H, Lancaster.
AIR QUALITY
The South Coast Air Quality Management District extended a smoke advisory through Thursday as unhealthy air continues to blanket much of the L.A. Basin and Inland Empire. It's not just local fires though; smoke is also making its way to us from wildfires in Northern California, Oregon and Washington.
Air Quality Forecast (Thu, Sep 17): https://t.co/szsyGAX5fb
— South Coast AQMD (@SouthCoastAQMD) September 17, 2020
🏖 Coastal: Unhealthy for Sens. Gr. -to- Unhealthy
🏙 LA: Unhealthy for Sens. Gr. -to- Very Unhealthy
🌅 OC: Unhealthy for Sens. Gr. -to- Unhealthy
🌄 Inland Empire: Moderate -to- Unhealthy
🌴 Coachella Valley: Unhealthy pic.twitter.com/mfGV9wa7EJ
Look up the latest air quality info for your area at airnow.gov.
ABOUT MT. WILSON

The Mt. Wilson Observatory houses 18 telescopes, many of which were used to make some of the greatest astronomical discoveries of the last century. They include the 100 inch Hooker telescope that Edwin Hubble used in the 1920s to prove that our universe is still expanding.
What appeared to be thick smoke was seen near the observatory mid-day Thursday.
This is not an image we enjoy posting. A drop by a large tanker would be good right now #BobcatFire pic.twitter.com/cjfZfFujcN
— Mount Wilson Observatory (@MtWilsonObs) September 17, 2020
Observatory Director Tom Meneghini said he's afraid they could be seriously impacted if the fire gets close enough.
"The heat can do irreparable damage. Our two big telescopes are historically significant and irreplaceable," Meneghini said.
However, he said fires have gotten close before and the decades-old firefighting setup at the Observatory is ready to be used again. "We have an inground system of hoses and pumps," he said.
"We have half a million gallons of water ready to pump so that’s all been prepared for any fire professional to come in and take over."
The fire also threatens a seismic station that has recorded earthquake activity for 100 years, seismologist Lucy Jones said via Twitter.
Numerous television and radio stations have transmitters in the area, including our newsroom which broadcasts on the radio at 89.3 KPCC.
HOW WE’RE REPORTING ON THIS
Ryan Fonseca and Mike Roe are gathering updates on the fire.
This is a developing story. We fact check everything and rely only on information from credible sources (think fire, police, government officials and reporters on the ground). Sometimes, however, we make mistakes and/or initial reports turn out to be wrong. In all cases, we strive to bring you the most accurate information in real time and will update this story as new information becomes available.
FIRE RESOURCES
- Every Day Is Fire Season. Here's How Angelenos Can Prepare Right Now
- How To Find Out About Fire Evacuations In Your Area
- How To Keep Yourself Safe From Wildfire Smoke
- The Air Is Brown — Should I Wear A Mask?
- This Is Why Fire Officials Don't Want You To Stay And Defend Your Home
- What Does 'Containment' Of A Fire Mean, Exactly?
- What Does A 'Red Flag Warning' Mean, Exactly?
- What To Do — And Not Do — When You Get Home After A Wildfire
- How To Avoid Getting Towed During LA's Red Flag Parking Restrictions
- If You Want To Help Fire Victims, Resist The Urge To Volunteer
YOUR QUESTIONS OR IDEAS
Our news is free on LAist. To make sure you get our coverage: Sign up for our daily newsletters. To support our non-profit public service journalism: Donate Now.
As Editor-in-Chief of our newsroom, I’m extremely proud of the work our top-notch journalists are doing here at LAist. We’re doing more hard-hitting watchdog journalism than ever before — powerful reporting on the economy, elections, climate and the homelessness crisis that is making a difference in your lives. At the same time, it’s never been more difficult to maintain a paywall-free, independent news source that informs, inspires, and engages everyone.
Simply put, we cannot do this essential work without your help. Federal funding for public media has been clawed back by Congress and that means LAist has lost $3.4 million in federal funding over the next two years. So we’re asking for your help. LAist has been there for you and we’re asking you to be here for us.
We rely on donations from readers like you to stay independent, which keeps our nonprofit newsroom strong and accountable to you.
No matter where you stand on the political spectrum, press freedom is at the core of keeping our nation free and fair. And as the landscape of free press changes, LAist will remain a voice you know and trust, but the amount of reader support we receive will help determine how strong of a newsroom we are going forward to cover the important news from our community.
Please take action today to support your trusted source for local news with a donation that makes sense for your budget.
Thank you for your generous support and believing in independent news.

-
The union representing the restaurant's workers announced Tuesday that The Pantry will welcome back patrons Thursday after suddenly shutting down six months ago.
-
If approved, the more than 62-acre project would include 50 housing lots and a marina less than a mile from Jackie and Shadow's famous nest overlooking the lake.
-
The U.S. Supreme Court lifted limits on immigration sweeps in Southern California, overturning a lower court ruling that prohibited agents from stopping people based on their appearance.
-
Censorship has long been controversial. But lately, the issue of who does and doesn’t have the right to restrict kids’ access to books has been heating up across the country in the so-called culture wars.
-
With less to prove than LA, the city is becoming a center of impressive culinary creativity.
-
Nearly 470 sections of guardrailing were stolen in the last fiscal year in L.A. and Ventura counties.