As of Friday morning, the fire had grown by about 4,000 acres overnight, reaching a total of 397,629 acres. Containment slightly increased to 24%, according to the California Department of Forestry and Fire Protection (Cal Fire).

The fire remains most active in the northeastern parts of Tehama County and Butte County.

"While containment is growing and crews are making progress in strengthening control lines, firefighters are actively engaged in fire suppression on more than 200 miles of active fire front. The fire continues to burn actively in areas with thick, dry vegetation that is receptive to burning. Steep, remote terrain continues to hamper control efforts. The topography has posed challenges for radio communications," Cal Fire said Friday morning.

CAL FIRE CZU Strike Team 9171C has fought valiantly to save 🏡. After #ShellyFire in @CALFIRESKU they were reassigned to #ParkFire in @CALFIRE_ButteCo. It's long days, nights of hard work. There's talent, dedication, strength in our firefighters! @sccounty @sanmateoco #CaWx pic.twitter.com/B0kWfHCI1l

— CAL FIRE CZU (@CALFIRECZU) July 30, 2024

Weather could challenge crews this weekend, as thunderstorms are predicted Friday in the northeastern part of the fire in the Lassen National Forest area, according to Cal Fire. The thunderstorms bring the potential for erratic winds.

Additionally, warmer temperatures are forecast for Northern California on Friday and Saturday.

Readers, scroll down for updates as they are posted for Friday, August 2. Meanwhile, the destruction caused by the Park Fire also continues to grow.

Damage assessment teams now report that 542 structures have been destroyed by the fire, compared to 483 on Thursday. Most of the buildings destroyed are in Butte County.

The structures include homes, commercial buildings, outbuildings, and other types of buildings.

Cal Fire reported that damage inspection teams have completed 88% of their assessments.