Crews had reached 30 percent containment on the complex.
"It's going to be a very dynamic day and the fire has the potential to impact several communities", said Cal Fire Mendocino Complex Fire Operations Section Chief Charlie Blankenheim during his morning briefing August 4, explaining that on Friday afternoon, the Ranch Fire "made a big push to the south and the east, and overnight continued to burn very, very actively and was backing down into the community of Lucerne, and it made a good push across Long Valley Ridge". Every year is teaching the fire authorities new lessons. "Because of the current level of commitment and forecast, having fire management expertise from Australian and New Zealand with specialized experienced firefighters will be of tremendous help as we continue suppressing ongoing fires". "We're in uncharted territory".
Varney became the first of four California firefighters to die this year. "Whatever resources are needed, we're putting them there", said California Gov. The Ranch Fire moved into sparsely populated areas, but the River Fire ran through an area with scattered ranches northwest of Lakeport, California.
The largest blaze burned in the Redding area, in Shasta County north of Sacramento.
The 206-square-mile (533-square-kilometer) Carr Fire 100 miles south of the OR border was 39 percent contained after destroying 1,060 homes and many other structures.
But tens of thousands of others were still under evacuation orders.More news: In My Feelings Challenge originator appears in Drake's official music video
They also warned of worsening conditions throughout the region.
But their battle to save people's lives and homes have come at a cost.
Due to the Ranch fire's behavior, fire officials early Wednesday issued new advisory evacuation warnings to residents of the Lake Pillsbury basin, Paradise Valley and in the Mendocino National Forest in Lake County.
This comes as the complex fire grows to a combined 157,250 acres, with at least 41homes destroyed, and 9,200 still threatened. Fire officials said another 8,000 homes and other buildings were threatened - down from about 12,000 homes initially threatened as firefighters made progress in some areas even as the blaze expanded in others.
A DC-10 air tanker drops fire retardant along the crest of a hill to protect the two bulldozers below that were cutting fire lines at the River Fire (Mendocino Complex) near Lakeport, California, U.S. August 2, 2018. Yosemite Valley and other areas of the park have been closed to tourists since July 25 because of heavy smoke from the fire, which has burned almost 64,000 acres (258 square kilometres) and is only 39 per cent contained.