Oak Fire near Yosemite National Park razes at least 135 structures

By the numbers: The Oak Fire was 42% contained as of Thursday evening after being active for six days, Cal Fire said. The blaze also grew by 367 acres.

• As of Thursday, 3,794 fire personnel had responded to the fire, according to Inciweb, an inter-agency incident information site.

What they're saying: Crews extended fire lines into steep areas "that are extremely difficult to access," while strengthening control lines and patrolling for hot spots, Cal Fire said.

• "Today was hotter and drier as expected, but cloud cover in the area prevented further drying and heating of fuels. Monsoonal moisture is expected to return early next week which should lower temperature and raise humidity levels. Damage inspection will continue until the entire fire area is assessed," it added.

Thought bubble, via Axios' Andrew Freedman: California is in the midst of an extreme drought, and periods of hot, windy weather between now and mid-to-late fall are likely to ramp up wildfire risk across the state.

• Studies show that climate change is leading to more days with extreme wildfire weather conditions as well as large blazes.

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