CAJON PASS, Calif. — August 28, 2026 — Firefighters are battling a wind-driven vegetation fire in the Cajon Pass, where the Greenwood Incident has prompted a significant emergency response and major traffic disruptions along northbound Interstate 15.

The fire was reported at approximately 3:08 p.m. Friday near Kenwood Avenue in the Devore area, west of the northbound I-15 freeway.

What initially appeared to be a relatively small vegetation fire quickly became a concern as strong winds pushed flames through dry, light brush on the slope.

Greenwood Incident: What Happened?

According to the information available, the Greenwood Incident began as an approximately one-acre vegetation fire near Kenwood Avenue.

The fire was described as slope-driven, with winds contributing to the rapid movement of flames through surrounding vegetation.

Because the incident occurred close to the heavily traveled I-15 corridor, firefighters were required to manage both the wildfire and the potential impact on motorists traveling through the Cajon Pass.

The size and behavior of vegetation fires can change rapidly when strong winds are present, making early firefighting operations particularly important.

I-15 Traffic Disruptions and Lane Closures

The Greenwood Incident resulted in significant traffic disruption along northbound Interstate 15.

Emergency crews operating near the freeway prompted lane closures as authorities worked to protect motorists and provide firefighters with safe access to the incident.

Drivers traveling through the Cajon Pass were advised to expect delays and exercise caution around emergency vehicles.

The closure of lanes on I-15 can have a substantial effect on traffic because the highway is a major route connecting Southern California communities and carrying large volumes of passenger and commercial traffic through the Cajon Pass.

Motorists should follow directions from law enforcement and transportation officials and avoid entering closed areas.

Wind Makes Firefighting More Difficult

Strong winds were an important factor in the development of the Greenwood Incident.

Wind can cause vegetation fires to spread quickly by carrying embers and pushing flames into unburned areas. It can also make it more difficult for firefighters to establish containment lines and safely operate equipment.

The combination of dry vegetation, wind and sloped terrain can create challenging conditions for crews responding to a wildfire.

Firefighters were working to contain the incident and prevent the flames from spreading farther into surrounding vegetation.

Greenwood Fire Near Devore

The fire was reported near Kenwood Avenue in the Devore area, placing it close to the Cajon Pass and the northbound I-15 corridor.

Devore and the Cajon Pass are important transportation areas in Southern California, meaning wildfire activity in the region can quickly create significant traffic consequences even when the fire itself remains relatively limited in size.

Officials and emergency crews were focused on controlling the fire while maintaining public safety in the surrounding area.

What Is Known About the Fire?

Based on the information available:

• The incident is known as the Greenwood Incident.
• It was reported at approximately 3:08 p.m. Friday, August 28, 2026.
• The fire began near Kenwood Avenue in the Devore area.
• Initial reports described approximately one acre of vegetation burning.
• The fire was described as wind-driven and slope-driven.
• Flames spread through light brush as winds pushed the fire.
• The incident prompted a major emergency response.
• Northbound I-15 experienced lane closures and significant traffic delays.

Additional information about the fire’s total acreage, containment percentage, structures threatened or damaged, injuries and evacuation orders was not available in the information provided.

Drivers Urged to Use Caution

Motorists traveling through the Cajon Pass should remain alert for changing traffic conditions and emergency operations.

Drivers should not attempt to bypass barricades or enter closed lanes. Emergency responders need sufficient space to operate fire engines, water tenders and other equipment safely.

Those traveling through the area should allow additional time and consider an alternative route if transportation authorities recommend one.

Investigation and Further Updates

The exact cause of the Greenwood Incident has not been provided in the available information. No cause should be assumed until authorities release an official determination.

Fire officials are expected to continue monitoring the incident and assessing its size, spread and containment as firefighting operations continue.

Residents and motorists should rely on official emergency and transportation agencies for the latest information regarding fire conditions, road closures, evacuation orders and reopening times.

The Greenwood Incident remains an active emergency, and conditions can change quickly, particularly while strong winds continue.

Further updates regarding the fire’s containment, acreage, cause, road closures and any potential impacts on nearby communities are expected as authorities provide additional information.