Firefighters make further progress to contain raging Oak fire near Yosemite

Firefighters have made significant progress battling the ferocious Oak fire burning in the Sierra Nevada foothills near Yosemite national park, achieving 45% containment by Friday morning. The blazehas consumed more than 19,200 acres, fueled through the dry, overgrown vegetation coating the hillsides and favorable fire conditions that spurred erratic and extreme behavior.

The Oak fire is one of many disasters raging across the US, as scorching temperatures baked the Pacific north-west, the west remained parched in record drought, and severe storms sent flash floods surging across several states. At least four people have died due to the extreme heat in Oregon, according to the state medical examiner, while the death toll mounts in Kentucky, where 16 people have been reported killed in historic flooding.

Overgrown parched vegetation across the state is baking in summer heat. Many regions are primed to burn.