The Ridge fire was first reported just after 2 p.m. in the area of Highland Springs and Old Toll Road near Lakeport.
Units responding saw a large column of smoke and began requesting air resources.
The first firefighters on scene at about 2:15 p.m. reported that the fire already was four acres with a moderate rate of spread, with the potential for 100 acres.
About 10 minutes later, the fire was reported to be 10 acres, burning in heavy brush, with a moderate to rapid rate of spread, and more resources requested.
As of 2:30 p.m., resources requested were reported to include 10 engines – four from local agencies and six from Cal Fire – four water tenders, two dozers, seven tankers and several helicopters.
Units on scene later gave the precise address of the incident as 13387 Adobe Creek Road.
At 3:15 p.m., incident command reported the fire to be 30 acres, burning in brush downhill to the east, with a west wind on it.
Retardant has been put across the right flank and across the head of the fire, with a structure about a quarter mile out in front of it, according to radio reports.
Five additional Cal Fire engines and four additional crews requested were requested at that time.
Shortly before 4 p.m., the fire was reported to be 40 acres, with the forward rate of spread slowed due to retardant.
By 4:30 p.m., the fire was reported to be holding at between 35 and 40 acres, with retardant all around it and a dozer attempting to access the most active portion of the fire.
A short time later, incident command said the fire had been mapped by a helicopter at 36 acres and was 5-percent contained.
Just after 6 p.m., the fire was reported to be holding at 36 acres, with containment up to 15 percent.
Additional updates will be posted on this page.
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