Lucas Fire Reaches 1,099 Acres, Triggers Evacuations

The Lucas Fire began at about 9:18 a.m. in an area previously burned by the 2018 Ranch Fire. It initially appeared manageable, but a major flare-up around 2:55 p.m. caused the fire to jump a ridgeline and expand from roughly 40 acres to 200 acres within minutes.
The incident command team requested substantial additional resources during the afternoon escalation, including two strike teams, 10 Type 3 engines, a hand-crew strike team, a dozer strike team, four to five water tenders, a lead plane and a Very Large Air Tanker.
Lake County’s initial evacuation order, issued shortly before 4 p.m., covered zones MNF-E016, MNF-E018 and UPP-E023; a later order added Bachelor Valley zones UPP-E026, UPP-E030, UPP-E027 and UPP-E025, with MNF-E019 added afterward.
Deputies reported that relatively few residents had left by late afternoon, although many people were gathering belongings and livestock in preparation for evacuation. No evacuation shelter had been designated as of 4:40 p.m.
Mendocino County’s warnings covered two Potter Valley-area zones, and officials advised residents needing extra time to evacuate—including people with pets or livestock—to consider leaving immediately rather than waiting for an order.
The Lucas Fire exploded to 1,099 acres Thursday near the Lake-Mendocino county line, forcing evacuation orders across multiple Lake County zones. Press Democrat reports the wind-driven blaze started around 9:18 a.m. in an area burned by the 2018 Ranch Fire, then jumped a ridgeline during a sudden afternoon flare-up, expanding from 40 acres to 200 acres in minutes. CAL FIRE achieved only 5% containment by nightfall despite deploying ground crews, engines, dozers, air tankers, and helicopters.
The fire prompted evacuation orders in Potter Valley, Elk Mountain Road, and Bachelor Valley, with CBS News noting relatively few residents had left by late afternoon, though many were gathering belongings and livestock. Pacific Gas & Electric cut power along Elk Mountain Road as firefighting intensified. No evacuation shelter had been designated as of early Thursday evening.
The Lucas Fire began in a deceptively quiet spot. Kym Kemp reports the initial report came around 9:18 a.m., and the blaze seemed manageable at first. But around 2:55 p.m., aggressive winds hit and the fire jumped a ridgeline. Within minutes, it ballooned from roughly 40 acres to 200 acres. By evening, it had consumed 1,099 acres—nearly three times larger.
Fire officials warned of aggressive fire behavior, long-range spotting, and threatened structures. The incident command team urgently requested two strike teams, 10 Type 3 engines, hand-crew support, dozer teams, four to five water tenders, a lead plane, and a Very Large Air Tanker during the afternoon escalation.
Lake County issued its initial evacuation order shortly before 4 p.m., covering three zones: MNF-E016, MNF-E018, and UPP-E023. A later order added four Bachelor Valley zones—UPP-E026, UPP-E030, UPP-E027, and UPP-E025—with MNF-E019 added afterward. Press Democrat and CBS News both reported that by late afternoon, relatively few residents had actually left their homes.
Mendocino County issued evacuation warnings for two Potter Valley-area zones and urged residents needing extra time—those with pets or livestock—to leave immediately rather than waiting for a formal evacuation order. No shelter had been set up as of Thursday evening.
CAL FIRE and mutual-aid agencies deployed extensive resources overnight. Ground crews, Type 3 engines, dozers, and water tenders worked structure protection operations across threatened zones. Air support included helicopters capable of flying at night and at least one Very Large Air Tanker.
Despite the aggressive response, containment remained minimal—just 5% by Thursday night. Press Democrat reported the cause remains under investigation. Firefighters faced additional challenges when Pacific Gas & Electric shut off power along Elk Mountain Road to aid evacuation efforts and prevent electrical hazards.
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