Cal Fire Butte County spokesman Rick Carhart said the changing weather conditions would likely lead to the formation of another large pyrocumulonimbus cloud over the fire Thursday.
The vertically growing clouds are unstable and intensely hot and can generate strong gusts of wind that send sparks flying. Already, multiple spot fires have been ignited by Dixie’s wind-whipped embers.
The volatile clouds also can create their own lightning, which has the potential to spark more flames. But Carhart said officials did not want residents to panic if they saw a massive cloud forming.
“That’s just the fire continuing to consume itself within the interior of the fire,” he said.
The Dixie fire has spurred mandatory evacuations across large portions of Butte, Plumas and Tehama counties, with nearby Lassen County placing residents on high alert.
Those who remain are threatened not only by flames but also thick, noxious smoke. Cook noted that smoke generated by the fire was working its way down into surrounding valleys.
Smoke from Western fires — including the Dixie fire and the 413,000-acre Bootleg fire in Oregon — has already traveled as far as the East Coast.
In Paradise, near the Dixie fire’s southern edge, air quality was hovering at the extremely toxic level of 874 on Thursday morning, according to EPA air monitoring site AirNow.
Experts say people near wildfire smoke should stay inside with their doors and windows shut.
Wildfire photographer Josh Edelson, who has been taking pictures of the Dixie fire, said this week that it was one of the darkest fires he had ever seen.
“It was hard to even capture in a photo,” he said. “At 4 in the afternoon, it was like it was midnight.”
Edelson described ash flakes the size of dimes and a smoke smell so powerful it was “like sticking your head right into a campfire.”
More than 5,900 firefighters are now battling the Dixie fire, officials said.
The task at hand is enormous, and residents hoping to return to their lives and homes will have little choice but to wait.
“I recognize the fact that we need to get folks back to their houses,” Plumas County Sheriff Todd Johns said. “But I will ask that you give me a little bit of patience.”©2021 Los Angeles Times. Visit at latimes.com. Distributed by Tribune Content Agency, LLC.