Thousands Evacuated as Wildfires Rage Through California Wine Country and Central Oregon

In California and Oregon, thousands of homes were under evacuation orders and warnings on Sunday due to wildfires. The Pickett Fire, which has consumed approximately 26 square kilometers of Napa County, was only 11% contained as of Sunday, according to the California Department of Forestry & Fire Protection (Cal Fire). This blaze forced 190 residents to evacuate and issued warnings for an additional 360 as it threatened 500 structures near Aetna Springs and Pope Valley.

Meanwhile, the Flat Fire in Deschutes and Jefferson counties, Oregon, has expanded to nearly 88 square kilometers, prompting evacuation notices for about 4,000 homes, including 1,000 with immediate orders to leave. Firefighters are battling both fires, with over 1,230 personnel and ten helicopters fighting the California fire, which ignited in a remote area last Thursday following a week of hot weather. The cause of the fire is currently under investigation.

Residents across the Western United States have been experiencing a heatwave that has hospitalized individuals due to dangerously high temperatures over the weekend in Washington, Oregon, Southern California, Nevada, and Arizona. Firefighters face challenges in both regions due to difficult terrain, low humidity, and triple-digit temperatures in certain areas.

Cal Fire spokesperson Jason Clay reported that while weather has moderated since the California fire started, humidity levels are expected to decrease as winds increase later in the day. He added that support from all parts of California has been vital to their efforts.

The Pickett Fire originated in the same area as the larger Glass Fire in 2020, which moved into Sonoma County and ultimately burned about 272 square kilometers and over 1,500 structures. Unlike the Glass Fire, which was fueled by wind, the current fire is primarily driven by dry vegetation on steep slopes, some of which are dead and downed trees left behind from the Glass Fire, as well as dried-out grass and brush that has grown back.

The area affected by the Oregon fire is located in a high desert climate, where dried grasses and juniper trees are burning, making it challenging to create containment lines in canyon areas. The fire started on Thursday night and quickly grew under hot, gusty conditions. Fire officials are keeping an eye on isolated thunderstorms in Southern Oregon that could move north on Sunday, which could potentially cause the fire to breach containment lines.

In central California, the state’s largest blaze this year, the Gifford Fire, was at 95% containment as of Sunday, having charred nearly 534 square kilometers of San Luis Obispo and Santa Barbara counties since it erupted on August 1. The cause is still under investigation.

While it’s challenging to directly attribute a single fire or weather event to climate change, scientists agree that human-induced warming from burning fossil fuels like coal and gas is causing more intense heatwaves and droughts, which in turn contribute to the increased severity of wildfires.