Fire crews had nearly completely encircled a wildfire burning east of San Juan Capistrano this afternoon as temperatures began to cool slightly across Southern California.
The blaze is 95% contained, with full containment expected Wednesday, fire officials said.
The fire had burned 145 acres of heavy brush in rugged terrain about five miles east of the 5 Freeway, authorities said. Fire officials earlier said the blaze had consumed 245 acres but downsized the acreage today after mapping the perimeter from the air.
Crews were able to take advantage of cool ocean winds and temperatures in the upper 60s, which helped slow the fire's spread, according to fire officials. Relative humidity was expected to reach 45% to 50% tonight, authorities said.
"That's going to help us even more," said Battalion Chief Kris Concepcion of the Orange County Fire Authority. "It will moisten things down."
He said all the major flames had been extinguished by this afternoon and that crews were dousing "creeping smokes," or smoldering embers inside the fire perimeter.
About 195 firefighters, aided by a water-dropping helicopter and a fixed-wing aircraft, were fighting the fire this afternoon. At the height of the blaze Monday afternoon, about 300 firefighters and several aircraft had been assigned to the battle.
The cost of fighting the fire had reached $385,000, Concepcion said.
Four firefighters were injured in the effort. One hurt his shoulder, another his knee, one his eye, and one suffered heat exhaustion.
Temperatures across Southern California were expected to dip slightly tomorrow before the onset of dry northerly winds Thursday and warmer weather, according to the National Weather Service.
A low pressure system was forecast to descend on the region Wednesday. Temperatures are expected to reach 70 degrees in downtown Los Angeles and the low 60s in mountain communities, the Weather Service said.
By Thursday, north winds will help warm up the area. Downtown L.A. will reach about 77 degrees, and foothill areas including Pasadena will hit about 79 degrees, the Weather Service said.
Temperatures will cool down again Friday and Saturday, with a 20% chance of rain, before warming back up Sunday and Monday, according to the Weather Service.
"It's just going to be this flip-flopping thing," Bonnie Bartling, a weather specialist with the Weather Service's Oxnard office, said of the changing temperatures.
--Robert J. Lopez
Photo: Orange County and California Department of Forestry fire investigators view the wildfire's point of origin where they believe a tractor operator knocked down a power pole, possibly arcing two electrical wires. The fire is currently considered accidental. Credit: Allen J. Schaben / Los Angeles Times