- The Summit Fire in Antelope Valley has burned at least 2,690 acres, with 15% containment as of Sunday morning.
- Evacuation orders are in effect for zones LAC-E107 and LAC-E127-C, with warnings for nearby areas.
- Firefighters from Los Angeles County and Angeles National Forest are battling the blaze, aided by air tankers and military C-130 MAFFS aircraft.
- No injuries have been reported, but at least one structure has been destroyed and others are threatened.
- The fire is advancing toward San Bernardino County, driven by hot temperatures and difficult terrain.
Fast-Moving Wildfire Forces Evacuations in Llano
A rapidly spreading wildfire, dubbed the Summit Fire, erupted in the Antelope Valley community of Llano on Friday, July 10, scorching at least 2,690 acres and prompting evacuation orders. The fire was reported around 12:49 p.m. near Jesus Canyon Road and East Avenue Z, close to the Los Angeles-San Bernardino County line, according to ABC7 and CBS News. Initially burning through eight acres, the blaze exploded in size amid temperatures soaring into the mid-90s, reaching 2,021 acres by 7 p.m. and 2,677 acres by 9:21 p.m. following updated assessments from CAL FIRE. Cal Fire confirmed the fire is threatening structures and has a rapid rate of spread, with no containment lines established. By 10 p.m., the fire had grown to roughly 3,000 acres and crossed into the Angeles National Forest, prompting officials to bring in more crews and aircraft.
Evacuation Zones and Warnings
Authorities issued mandatory evacuation orders for zones LAC-E107 and LAC-E127-C, as reported by CBS News and the Desert Sun. Evacuation warnings are in effect for zones LAC-E107-B, LAC-E126-A, LAC-E127-A, LAC-E127-B, LAC-E127-D, LAC-E128-A, LAC-E1340, PIN006, PIN005, and WWD03. Residents in affected areas are urged to leave immediately and monitor emergency alerts. A map of impacted zones is available on the Los Angeles County website. The boundaries for LAC-E107 are north of Jubilee Road and south of Pearblossom Highway, while LAC-E127-C is north of Cardinal Road and south of Angeles Crest Highway. Additionally, evacuation orders cover areas south of State Road 138 and north of Big Pines Highway between Largo Vista Road and the western border of Piñon Hills. Warnings are in effect for areas south of Big Pines Highway and north of Antelope Highway, including for popular ski destination Mountain High Resort. The San Bernardino County Sheriff's Department urged residents who may need additional time to evacuate, including those with pets or livestock, to leave immediately. People in Zones LAC-E1340 and LAC-E127-C are under evacuation warnings and should pack essential belongings, keep an eye on emergency alerts and be ready to leave if conditions worsen.
Firefighting Efforts and Challenges
At least 10 air tankers were dispatched to combat the fire, with incident commanders requesting additional aerial support, including a Very Large Airtanker, according to Yahoo News. An Aerial Quick Strike of military C-130 Modular Airborne FireFighting System (MAFFS) airtankers was activated and is supporting the Summit Fire, adding surge capacity to ongoing wildfire suppression efforts. The Los Angeles County Fire Department is leading the response in a unified command with CAL FIRE San Bernardino Unit, San Bernardino County Fire, and USFS Angeles National Forest. Steep, rugged terrain is making access difficult, but crews will remain engaged throughout the night with support from night flying helicopters. The fire is currently burning toward the Bridge Fire burn scar, where reduced vegetation is expected to help slow fire spread and support suppression efforts. No injuries have been reported, but crews have reported damage to outbuildings and threats to occupied structures. At least one structure was destroyed. Authorities have not said whether any homes or other buildings have been damaged or destroyed, though they warned that structures remain under threat as crews continue working to contain the fire.
Environmental Impact
The inferno is destroying centuries-old Western Joshua trees, a culturally iconic and ecologically vital species protected as a threatened species under California law.
Air Quality Advisory
The South Coast Air Quality Management District issued a wildfire smoke advisory for the Summit Fire. Smoke from the wildfire is being pushed south towards the San Gabriel Mountains and the San Bernardino area. Smoke levels may rise if the fire spreads further south. Residents in the San Gabriel Mountains, Big Bear Lake, Lake Arrowhead and other communities in the San Bernardino Mountains may reach a level unhealthy for sensitive groups by Friday night. The advisory will last until at least 5 p.m. Saturday. By that time, the wind should push the smoke north and away from the San Gabriel and San Bernardino mountains. AQMD urged residents in the affected area to stay indoors and keep their doors and windows closed. They recommended that residents run their air conditioners or air purifiers. Officials recommended that anyone going outside should wear an N95 or P100 respirator.
As of 6:30 p.m. Friday, monitors and sensors recorded Good to Moderate particle pollution levels, with no widespread smoke impacts at the surface in the South Coast Air Basin, according to the district. The Los Angeles County Department of Public Health also issued a smoke advisory for portions of the county due to the fire, effective until 5 p.m. Saturday.
Nearly 600 people were under a combination of evacuation orders and evacuation warnings. All children and counselors were safely evacuated from the AYF Camp south of the fire's location. Residents captured images and video as smoke darkened the sky. Some residents, including Bud Horstmeyer of Piñon Hills, chose to remain and monitor conditions despite the fire's rapid spread. "Just wasn't enough work on it right away, and it just kind of got out of hand, but they'll get it out. These guys are the best," Horstmeyer said.
By 10 p.m., the fire had grown to 2,581 acres and was 0% contained, according to the California Department of Forestry and Fire Protection.
Evacuation orders have also been issued for an area roughly bordered by Highway 138 on the north, 263rd Street on the east, Largo Vista Road on the west and Big Pine Highway on the southern end.
Multiple structures are threatened by the fire, but there are protection measures in place.
A smoke advisory is in effect in portions of L.A. and Riverside counties until 5 p.m. Saturday, as smoke from the incident is being pushed south over portions of the San Gabriel Mountains, according to the South Coast Air Quality Management District. Residents are advised to monitor AQMD’s map for air quality conditions in their area and to remain indoors if they see or smell smoke.
The fire quickly ballooned from 600 acres to about 1,600 acres before reaching 2,271 acres as of 5:55 p.m., according to Watch Duty, a free app that offers real-time wildfire updates by drawing from firefighters' radio traffic and other sources.
The boundaries for LAC-E107 are north of Jubilee Road, Old Oak Spring Ranch Road, Panorama Road; south of Pearblossom Highway, Antelope Highway; east of Largo Vista Road; west of 263rd Street East. The boundaries for LAC-E127-C are north of Cardinal Road; south of Angeles Crest Highway; east of Timberline Drive; west of Cardinal Road.
Evacuation Shelter and Animal Services
An Evacuation Shelter is open at Antelope Valley Family YMCA, located at 43001 10th St W in Lancaster. Small pets are allowed. An animal shelter for small animals is available at Los Angeles County Animal Care Center located at 38550 Sierra Highway in Palmdale. An evacuation center for animals and livestock is also available at the same location.
Local California Context
The Summit Fire is burning in the Antelope Valley, a high desert region in northeastern Los Angeles County known for its hot, dry summers. The area includes the unincorporated community of Llano, near the San Bernardino County border. The fire threatens homes and infrastructure in a sparsely populated but fire-prone region, with winds and dry vegetation fueling its rapid spread. The Angeles National Forest, which spans hundreds of thousands of acres, is a key natural resource in Southern California, and the fire's encroachment raises concerns for local ecosystems.
Background
Southern California has experienced a series of wildfires in recent years, exacerbated by drought conditions and climate change. The Antelope Valley, in particular, has seen major fires like the 2020 Bobcat Fire, which burned over 115,000 acres in the Angeles National Forest. The Summit Fire's rapid growth mirrors these past events, highlighting the ongoing wildfire risk in the region. The cause of the fire remains under investigation.
Conclusion
The Summit Fire continues to pose a serious threat to the Antelope Valley, with evacuation orders in place and firefighting efforts ongoing. Residents should stay informed through official channels and be prepared to evacuate if conditions worsen. The situation is developing, and updates will be provided as more information becomes available.
Sources and Materials
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UPDATE 1: The Angeles National Forest says the fire has charred 2,677 acres as of Saturday morning. Containment remained at 0%.
The fire ignited in a sparsely populated area near the communities of Llano and Piñon Hills off Highway 138 before spreading into the Angeles National Forest.
Fire crews prepared for an extended battle as nearly a dozen aircraft hit the flames from above. Helicopters and fixed-wing aircraft dropped water on the flames, with helicopters refilling from an aqueduct. At least one military C-130 aircraft also assisted.
"I think we saw like seven or eight helicopters, and then five or six planes. There were some really big ones. Cal Fire is out here putting in their best efforts, for sure," said Nicholas Cox of Apple Valley.
The blaze erupted during the afternoon amid hot conditions.
"Temperatures were in excess of nearly 100 degrees here. I know we had some winds about 10 to 15 miles an hour coming out of the east," said Los Angeles County Fire Department Engineer Jonathan Torres.
Residents watched the fire spread across mountain terrain.
"We've definitely have seen it start down low. We've seen it work its way up the mountain, and it looks like its cresting over this ridge right now, but that's the biggest concern, honestly, going back toward Wrightwood," said Drew Everett of Apple Valley.
Fire officials said the blaze was burning toward the area of the Bridge Fire burn scar near Wrightwood, where nearly 100 structures were destroyed in a previous wildfire.
The Summit Fire damaged some buildings, though many others were saved.
For additional information, visit: lacounty.gov/emergency
UPDATE 2: Overnight weather conditions created tactical opportunities allowing crews to assume a defensive position, reducing the fire's ability to spread. Firefighters will continue to fight active fire sources while providing structure defense for residences in the affected areas. However, Saturday's forecast poses challenges: temperatures are expected to approach 100 degrees, combined with 25-mile-per-hour wind gusts and low humidity, creating potential for rapid fire growth and significant fire behavior.
UPDATE 3: The National Weather Service issued an Air Quality Alert after South Coast AQMD advised “high elevation areas in the San Gabriel and San Bernardino mountains including Big Bear Lake and Lake Arrowhead” could see “harmful” air pollution levels.
Residents in those areas should stay indoors if they see or smell smoke, officials said, and run an air conditioner or air purifier. If they believe the smoke is causing symptoms, they should go to their doctor or call 911 for life-threatening issues, officials added.
Three zones in San Bernardino County — PIN006, PIN005, and WWD03 — are also under an evacuation warning.
In Llano, where the blazes originated, temperatures are forecast to rise to a high of 102 degrees Saturday, according to AccuWeather.
The fire exploded over the course of Friday, growing from 309 acres to 1,600 acres in about 2.5 hours.
As of 8 a.m. Saturday, the fire had grown to 2,679 acres and was 0% contained, according to a CAL FIRE status report, which showed no reported injuries or damage to structures.
Two evacuation shelters are available to residents evacuated by the fire: the Antelope Valley Family YMCA, located at 43-001 10th St. W. in Lancaster (small pets allowed, call 661-723-9622 for more information), and the Los Angeles County Animal Care Center, at 38-550 Sierra Highway in Palmdale (accepting small animals, call 661-575-2888 or email palmdale@animalcare.lacounty.gov).
Angeles National Forest officials reminded people on social media early Saturday that drones are prohibited near wildfires, as aircraft are actively working the fire.
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UPDATE 1: The firefighting effort was being handled under the unified command of the LACFD, the U.S. Forest Service, San Bernardino County Fire, Cal Fire, the Los Angeles County Sheriff's Department and San Bernardino County Sheriff's Department.
Officials also announced that drones were prohibited over the area while crews were actively working the fire.
Correction: An earlier version of this article erroneously reported that firefighters halted the forward progress of the fire. The story has been updated.
Smoke from the Summit Fire was moving east into San Bernardino County on Friday evening and was expected to spread into the Mojave Desert as winds shifted, according to the National Weather Service's San Diego Office.
As of Saturday morning, air quality in the areas surrounding the fire measured largely at "moderate" levels.
You can search your address and find what zone you are in at protect.genasys.com.
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UPDATE 1: UPDATE 4: As of Saturday evening, the fire has burned 2,690 acres with 8% containment, according to the Angeles National Forest. "Growth is moderating. We're taking advantage of lower temperatures today to make some progress," San Bernardino Fire Department Capt. Eric Sherwin told City News Service on Saturday. "We're hoping to have some containment numbers by sunset." More than 500 firefighters are battling the fire, including L.A. County, San Bernardino County and U.S. Forest Service crews. The Red Cross has opened a shelter for Summit Fire evacuees and their pets at the Antelope Valley YMCA on 10th Street in Lancaster. Officials say pets must be in a travel carrier or pet crate. A small animal shelter was also established at the Los Angeles County Animal Care Center - Palmdale, located at 38550 Sierra Highway. Anyone affected who needs the shelter is urged to bring an emergency kit and any supplies they need to feel comfortable and safe. The shelter is open 24 hours a day for anyone who has to leave at any time.
UPDATE 2: As of Saturday evening, the acreage has ballooned to 2,690, according to Cal Fire. Containment had climbed to 8% as firefighters continued to gain the upper hand.
Firefighters assumed defensive positions on Saturday morning after overnight conditions created opportunities for crews battling a massive wildfire in Southern California's Antelope Valley, according to authorities.
The blaze, dubbed the Summit Fire, began on Friday near Jesus Canyon Road and E. Avenue Z in Llano. Crews responded at 1:12 p.m. to a then-8-acre fire.
The Angeles National Forest said on X that ideal overnight conditions allowed crews to assume a defensive position overnight, reducing the fire's ability to spread.
"Overnight weather conditions created tactical opportunities allowing crews to create defensive positions to reduce the fire's ability to spread," the post reads. "Firefighters will continue to fight active fire sources while providing structure defense for residences in the affected areas."
Still, favorable weather conditions for fire on Saturday could leave crews with a challenge. Temperatures are expected to approach 100 degrees, combined with 25-mile-per-hour wind gusts and low humidity.
"The current state of the weather and vegetation create the potential for rapid fire growth and significant fire behavior," Angeles NF said.
Second Brush Fire in Antelope Valley
A second brush fire, dubbed the Juno Fire, broke out in the Antelope Valley on Saturday evening, triggering evacuation warnings for some residents in the Fairmont area. The Juno Fire is burning at Lancaster Road and Munz Ranch Road, several miles away from the Summit Fire. According to the Los Angeles County Fire Department, the fire is at least 149 acres and growing at a rapid rate of spread, quickly expanding from an initial 30 acres. An evacuation warning has been issued for nearby residents. The Summit Fire, which has been active since Friday afternoon, grew to 2,690 acres, triggering evacuation warnings and orders for nearby residents. By Saturday, crews had made progress on the Summit Fire, but the evacuations remained in place.
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UPDATE 1: Evacuation warnings for the Juno Fire were lifted shortly before 8 p.m. Saturday after forward progress was stopped and the fire reached 42% containment. The Juno Fire ultimately burned 188 acres.
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UPDATE 1: UPDATE 1: Fire officials confirmed that one firefighter was injured, saying the injuries were only "minor and superficial." They are expected to be OK.
In an update on Saturday evening, officials said significant winds and weather presented the potential for established spots to spread rapidly on Saturday, plus steep and rugged terrain created access challenges. "Despite this, hard work on the ground in combination with persistent air attacks limited perimeter growth along the fire's edge," Angeles National Forest said in an update on social media. The potential for rapid fire growth with erratic fire behavior remains high heading into Sunday.
Firefighters have halted the destructive path of the fast-moving, 2,679-acre brush fire that erupted in the Antelope Valley community of Llano. The Summit Fire forced residents to flee their homes, damaged multiple structures, and triggered widespread smoke advisories across two counties before crews stopped its momentum early Saturday morning. By 9 p.m. Friday, the Los Angeles County Fire Department (LACFD) reported the fire had grown to 2,709 acres, though that acreage was later assessed at 2,679 acres when forward progress was successfully stopped early Saturday morning. No injuries have been reported. However, on-scene crews confirmed that several outbuildings were damaged or destroyed, and occupied structures were directly in the path of the flames. A massive aerial response was deployed to combat the blaze, including at least 10 air tankers alongside additional aerial support requested by incident commanders. Because of the heavy smoke, both the South Coast Air Quality Management District and the Los Angeles County Department of Public Health issued smoke advisories, which remain in effect until at least 5 p.m. Saturday. While the forward progress of the fire has been stopped, it remains at 0% containment. It is currently unknown how long it will take hand crews to establish secure containment lines. Officials have also not yet released information regarding the exact cause of the fire, or the exact number of occupied homes that remain threatened. Residents under evacuation orders are directed to the Antelope Valley Family YMCA located at 4300 110th St. West in Lancaster. If you have small pets requiring shelter, they can be taken to the Los Angeles County Animal Care Center-Palmdale at 38550 Sierra Highway. Due to the active smoke advisories across the region, residents in affected areas are advised to stay indoors, keep windows and doors closed, and avoid vigorous physical activity until smoke dissipates.
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UPDATE 1: As of Saturday evening, the acreage has ballooned to 2,690, according to Cal Fire. Containment had climbed to 8% as firefighters continued to gain the upper hand.
Firefighters assumed defensive positions on Saturday morning after overnight conditions created opportunities for crews battling a massive wildfire in Southern California's Antelope Valley, according to authorities.
The Angeles National Forest said on X that ideal overnight conditions allowed crews to assume a defensive position overnight, reducing the fire's ability to spread.
"Overnight weather conditions created tactical opportunities allowing crews to create defensive positions to reduce the fire's ability to spread," the post reads. "Firefighters will continue to fight active fire sources while providing structure defense for residences in the affected areas."
Still, favorable weather conditions for fire on Saturday could leave crews with a challenge. Temperatures are expected to approach 100 degrees, combined with 25-mile-per-hour wind gusts and low humidity.
"The current state of the weather and vegetation create the potential for rapid fire growth and significant fire behavior," Angeles NF said.
As of Sunday morning, the Summit Fire had burned 2,690 acres and containment had increased to 15%, according to the Angeles National Forest. Crews have made significant progress and forward progress has been stopped. However, hot and dry conditions combined with gusty winds persist across the fire area. The northern portion of the fire is difficult to access due to limited roads, and firefighters are dealing with difficult terrain in the southern portion. There is still potential for significant fire behavior and rapid growth. Firefighters continue to construct fire line and in some areas are mopping up hot spots.
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UPDATE 1: Firefighters have stopped the forward progress of the Summit Fire in the Antelope Valley, leading to the lifting of all evacuation orders. The Los Angeles County Fire Department said crews made significant progress on the blaze overnight, with containment at 15%. Firefighters are remaining on scene to establish fire lines and clean up hot spots. The blaze began on Friday near Jesus Canyon Road and E. Avenue Z in Llano. Crews responded at 1:12 p.m. to a then-8-acre fire. As of Sunday afternoon, 2,690 acres burned and one minor structure was destroyed. A residence was also damaged, according to LACFD. The LACFD warned that current weather conditions remain favorable for wildfires. While evacuation orders were lifted, warnings were in place in the following zones: LAC-E107-A, LAC-E127-C.
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UPDATE 1: As of Sunday evening, containment on the Summit Fire increased to 31%, according to the Los Angeles County Fire Department. Firefighters have stopped forward progress and all evacuation orders have been lifted. Evacuation warnings remain in effect for zones LAC-E107-A and LAC-E127-C. Crews continue to establish fire lines and mop up hot spots. The fire has burned 2,690 acres and destroyed one minor structure, with one residence damaged.
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UPDATE 1: The Summit fire has destroyed one home and damaged two others, according to officials. The fire was 31% contained as of Sunday night. Although winds were expected to remain active over the next 24 hours, fire growth was not expected, according to Angeles National Forest officials. The fire is burning as approaching monsoonal moisture will bring a 10% to 20% chance of lightning in Los Angeles, Ventura, Santa Barbara and San Luis Obispo counties, primarily in mountain areas, starting Sunday and lasting through Thursday, said Spencer Fielding, meteorologist with the National Weather Service in Oxnard. This could raise wildfire risk, as dry lightning and gusty outflow winds are typically associated with these storm systems. The cause of the fire remains under investigation, according to the California Department of Forestry and Fire Protection. The agency said 604 crews, with 1,068 personnel, dozers and water-dropping aircraft battled the fire.
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UPDATE 1: Firefighters continued to make progress Sunday on the Summit Fire burning in the Antelope Valley community of Llano, with officials reporting that forward progress on the blaze has been stopped and containment has increased. The fire has burned 2,690 acres and is now 31% contained, according to fire officials. AIR7 video from Saturday showed heavy smoke and pockets of active flames within the burn area as crews worked to strengthen containment lines around the fire. More than 500 firefighters from Los Angeles County, San Bernardino County and the U.S. Forest Service have been battling the fire since it erupted Friday near Jesus Canyon Road and East Avenue Z, close to the Los Angeles-San Bernardino county line. One firefighter suffered minor injuries while battling the blaze and is expected to recover, officials said. Authorities said the fire has damaged one residence and destroyed one minor structure. While cooler temperatures have helped firefighting efforts, officials warned that changing weather conditions in the high desert could still create challenges for crews working to contain the fire. Evacuation orders have been lifted, though some evacuation warnings remain in effect in parts of Los Angeles County. Officials also said all evacuation notices have been lifted in San Bernardino County. The Red Cross closed its shelter that was set up at the Antelope Valley YMCA on 10th Street East in Lancaster as evacuation orders were lifted and residents returned home. Residents affected by the fire can still receive assistance by calling 1-800-RED-CROSS. A small animal shelter is also available at the Los Angeles County Animal Care Center-Palmdale, located at 38550 Sierra Highway. City News Service contributed to this report.
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UPDATE 1: As of Sunday, July 13, Unified Command announced that Evacuation Warnings remain in effect for Zones LAC-E107-A and LAC-E127-C, and road closures will stay in place until further notice. This cautious approach ensures public and crew safety amid incoming winds, potential interior fire behavior, and a heavy presence of emergency vehicles. While all Evacuation Orders were downgraded Sunday and no further fire growth is expected, active winds mean residents may still see localized smoke and brief interior flare-ups well within the established burn area.
Cooler overnight conditions on July 11 allowed firefighters to strengthen containment lines and improve defensive positions, helping to slow the fire’s spread. Crews continue to attack active fire while protecting homes in threatened areas. Hot, dry weather persists, with temperatures near 100 degrees, single-digit humidity, and gusty ridgetop winds creating the potential for rapid fire growth and active fire behavior.
CAL FIRE Damage Inspection (DINS) personnel are safely accessing cleared zones to validate structure counts, and officials thank the community for their continued cooperation as personnel work to fully secure the area.
As of Monday afternoon, the Summit Fire was 39% contained, according to Cal Fire. The fire has burned 2,690 acres. One home has been damaged and one minor structure destroyed. No injuries or deaths have been reported. Evacuation orders are no longer in effect, but evacuation warnings remain in place for zones LAC-E107-A and LAC-E127-C in Los Angeles County. Cal Fire crews are assessing damage and no further fire growth is expected, though active winds may cause localized smoke and brief interior flare-ups within the burn area.
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UPDATE 1: As of Monday evening, firefighters continue making progress building control lines and putting out hot spots. Interior pockets of the Summit Fire continue to burn while larger fuels smolder and produce visible smoke. Heavy annual rainfall has created a dense fuel bed, and recent winds, high temperatures, and low relative humidities have rapidly dried out thinner, smaller fuels, creating a highly receptive fuel bed. Suppression crews are operating in steep, rocky terrain, while narrow roads present additional driving hazards. CAL FIRE Damage Inspection Teams (DINS) have completed approximately 90% of the assessments. A Heat Advisory remains in effect until Tuesday morning, when an Extreme Heat Warning takes effect through Thursday evening. The incident footprint will transition into an Extreme Heat Warning beginning at 10:00am Tuesday, increasing the risk of heat-related illness for ground personnel. Operational priorities will focus on maintaining strict safety protocols amidst the intense heat while monitoring for potential thunderstorm development. Crews will remain vigilant for erratic outflow winds and dry lightning, which could cause unpredictable fire behavior, while continuing to navigate the hazards of steep terrain and rolling debris. Crews will continue strengthening control lines and mopping up hot spots. They will also identify secondary control line locations.
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UPDATE 1: As of Monday evening, containment on the Summit Fire increased to 47%, according to the Los Angeles County Fire Department. Firefighters have stopped forward progress and all evacuation orders have been lifted. Evacuation warnings remain in effect for zones LAC-E107-A and LAC-E127-C. Crews continue to establish fire lines and mop up hot spots. The fire has burned 2,690 acres and destroyed one minor structure, with one residence damaged.
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UPDATE 1: As of Tuesday, July 14, all evacuation warnings have been lifted for the Summit Fire. Residents are free to resume normal activities. However, an Extreme Heat Warning remains in effect through Thursday evening, increasing the risk of heat-related illness for ground personnel. Amidst intense heat, operational priorities will focus on maintaining strict safety protocols and monitoring for potential thunderstorms. Crews will continue strengthening control lines, mopping up hot spots, and identifying secondary contingency lines.
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UPDATE 1: As of Tuesday evening, firefighters continue making progress building containment lines around the Summit Fire. Fire activity was minimal with no perimeter growth. Interior pockets and heavy fuels continue to smolder. Dense annual vegetation remains highly receptive to ignition due to recent hot, dry, and windy conditions. CAL FIRE Damage Inspection (DINS) teams have completed their field assessments. Even though Evacuation Warnings have been lifted, there is still heavy fire equipment working in the area. Residents are urged to drive with caution. An Extreme Heat Warning remains in effect until Thursday evening. This prolonged heat, combined with steep, rocky terrain and narrow roads, presents significant hazards including heat-related illnesses and rolling material. There is also a continued threat of thunderstorms bringing lightning and sudden wind shifts. If these storms materialize, crews should prepare for erratic wind gusts exceeding 40 mph and heavy downpours. Crews will continue mopping up hot spots and patrolling control lines. Sustained heat and poor overnight humidity recovery may reactivate previously dormant heat sources. Recent burn areas and prior fuel treatments at the head of the fire will continue to aid suppression efforts.
UPDATE 2: The Summit Fire Unified Command would like the public to know that the cause of the fire remains under investigation. Unverified reports circulating are claiming to reveal how the fire started. Unified Command emphasizes that the information currently being shared across these platforms consists of unverified rumors, and they remind the public that speculation misleads those communities impacted. Trained fire investigators from Los Angeles County Fire Department are analyzing evidence, and they need time to perform the complex investigation. Unified Command asks for the community's patience and cooperation in allowing these professionals the necessary time and space to conduct a thorough and professional inquiry. Residents and the media are strongly encouraged to avoid spreading unverified claims on social media and to rely solely on official updates provided by the partner agencies.
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UPDATE 1: As of Wednesday, July 15, the Summit Fire is now 72% contained, according to fire officials. Fire activity remains minimal with no perimeter growth. Crews continue to mop up hot spots and patrol containment lines. An Extreme Heat Warning remains in effect through Thursday evening, posing risks for ground personnel. The cause of the fire remains under investigation.
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UPDATE 1: As of Wednesday evening, firefighters continue to make significant progress building and strengthening control lines. Dry conditions have resulted in low relative humidities with minimal overnight recovery. These conditions, combined with exposure to direct sunlight and high temperatures, may reveal once-dormant heat sources across the incident. Larger fuels and interior pockets of unburned vegetation will continue to burn off. Crews are currently operating in steep, rocky terrain. Local roads are narrow and rocky, presenting challenging driving conditions for emergency equipment. An Extreme Heat Warning remains in effect through 8:00pm on Thursday. While general winds are expected to remain light and typical for the area today, an onshore wind push is forecasted for Thursday afternoon, bringing southerly wind gusts between 25 and 35 mph. There is currently an active Red Flag Warning for areas immediately northwest of the fire, but there are no plans to issue a Red Flag Warning for the Summit Fire footprint itself, as the threat of thunderstorm activity has dropped significantly. Over the next 24 to 48 hours, the prolonged exposure to direct sun, extreme heat, and low relative humidities will keep fuels highly receptive, potentially exposing deeper, previously dormant heat sources. Heavy fuels will continue to smolder well within the containment lines. If conditions continue to trend as predicted over the next 72 hours, fire behavior is expected to remain minimal with no anticipated growth or significant active fire spread.
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UPDATE 1: As of Thursday, July 16, the Summit Fire is now 86% contained, according to fire officials. Firefighters continue to make steady progress constructing and reinforcing control lines. A hot weather pattern persists, bringing elevated risks for heat-related illnesses, along with onshore winds expected to generate southerly gusts of 25 to 35 mph. While a Red Flag Warning remains in effect for areas northwest of the fire, no warning is active for the immediate incident footprint, and the threat of thunderstorms has significantly decreased. Personnel and the public are urged to remain vigilant, stay hydrated, and practice heat safety.