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Calif. fire crews gain ground on wildfire despite challenging weather

Officials reported the Post Fire in Los Angeles County is 20% contained

California Wildfire

Firefighters work against the advancing Post Fire on Sunday, June 16, 2024, in Gorman, Calif.

AP Photo/Eric Thayer

Associated Press

LOS ANGELES — Firefighters have increased their containment of a large wildfire that is burning in steep, hard-to-reach areas and threatening critical infrastructure in mountains north of Los Angeles, officials said. But hot, dry, windy weather could challenge their efforts Tuesday.

The Post Fire was 20% contained Monday night after wind caused explosive growth over the weekend along Interstate 5, the main north-south route on the West Coast.

“Fire weather conditions are making it difficult to control the fire,” the Los Angeles County Fire Department said in a Monday night update. “Important structures like power lines, dams, and oil pipelines are at risk.”

Strong winds from the north mean the fire is expected to keep moving south, the department said. High temperatures and low humidity were forecast for Tuesday. Wind gusts could reach 55 mph (88 kph).

Officials had earlier warned residents of Castaic, home to about 19,000 people, that they should prepare to leave if the fire pushed south.

The fire scorched more than 24 square miles (61 square kilometers) and forced the evacuation Saturday of at least 1,200 campers, off-roaders and hikers from the Hungry Valley recreation area.

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The fire erupted Saturday afternoon near I-5 in Gorman. Two structures burned within the evacuated recreation area.

The majority of the more than 1,000 firefighters assigned to the blaze were focused on its southern edge, near popular Pyramid Lake, which was closed as a precaution on Sunday and Monday.

The fire broke out as weather turned hot and windy in a region where grasses brought by a rainy winter have now dried out and become fuel.

Smoke has drifted eastward, causing a slight haze in the Las Vegas area. Officials there advised children, older adults, and people with respiratory and heart disease to stay indoors.

About 75 miles (120 kilometers) to the east, the nearly 2-square-mile (5-square-kilometer) Hesperia Fire was more than 70% contained by Monday night. The fire erupted Saturday and forced road closures and evacuation warnings in San Bernardino County.

Proper hydration for firefighters
The time to think about hydration is now, not when you are immersed in an exhausting activity

In Northern California’s Calaveras County, a new fire, the Aero Fire, burned nearly 8 square miles (20 square kilometers) and led to evacuation orders for some residents, officials said.

And about 150 miles to the northwest, a wildfire in a sparsely populated area near Lake Sonoma was 20% surrounded Monday after charring nearly 2 square miles (5 square kilometers).

After back-to-back wet winters, fire season has gotten off to a slow to near-average start, said Daniel Swain, a climate scientist with the University of California, Los Angeles.

“These are not peak season fires either in scope or behavior or in terms of where they’re burning,” Swain said in an online briefing. “In many ways, they’re classic, early-season fires since they’re primarily burning in grass and brush.”

Swain said he expects more fire activity to begin in July at lower elevations and August at higher elevations.

“And the bad news is that I think that the back half of this season is going to be much more active, with a lot more concerning level of wildfire activity in a lot of areas than the first half,” he said.

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