PG&E provides details of this month’s shutoffs.

The hot, dry winds that forced PG&E to cut power earlier this month to about 22,000 customers in high-risk fire areas damaged a handful of electric lines in the Sierra Nevada foothills, the utility reported.

The state-required report, which was released Friday, provides details of the utility’s preemptive power shutdowns on June 8 and 9, which came in the wake of last fall’s devastating Northern California wildfires sparked by the company’s transmission lines. “PG&E knows how much our customers rely on electric service, and the impacts these events can have on them, their families, businesses and communities,” the report said. “PG&E considers temporarily turning off power, based on weather and fire-risk conditions, only in the interest of safety to reduce the risk of wildfire.”

On June 7, a red flag weather alert, with a forecast of hot, dry weather and powerful winds, persuaded the utility to warn customers around Lake Berryessa and in the Butte County region torched by the last year’s devastating Camp Fire that their power could be shut off.

The Lake Berryessa shutdowns took place around 6 a.m. on June 8, with the Butte County power lines de-energized later that evening. Power was restored to all customers by 6 p.m. on June 9, the company said.

When utility crews went out to inspect the power lines before turning the electricity back on, they found potential problems.

While no damage was found in the North Bay locations, “PG&E discovered five instances of wind-related issues ... that required remediation” in the Sierra foothill area, the report stated.

In two cases, there was damage to service drops, which are lines from a power pole into a business or residence. Both of them appeared to be caused by falling vegetation, including a tree in Oroville (Butte County) that slammed into a shed and cable wire, as well as the power line, the PG&E report stated. The lines had to be repaired before power was restored.

In three other cases in Chico, falling branches landed on PG&E conductors and had to be cleared by the crews.

Those are the type of incidents that safety officials have warned could — and have — sparked fires if the lines were left powered.

The report said the utility had identified some problems with the service shut-off, which was the first of what could be many during this year’s fire season.

They included not giving the impacted cities 24 hours notice before cutting the power, and delays in providing detailed maps of the areas affected, as well as the need for improved communications with public safety agencies, including local law enforcement and state and local fire officials.

So far, no complaints about the shut-off have been filed with the state Public Utilities Commission. The only claim filed with the utility was one for spoiled food, the report stated.