Known as a pyrocumulus cloud, the ominous red weather formations usually occur over volcanic eruptions or forest fires when intensely heated air triggers an upward motion that pushes smoke and water vapor to rapidly rise. They can develop their own weather patters, including thunderstorms with severe winds which then further fan the flames.
The deadliest of the blazes is the Carr fire, which has killed six people including two firefighters, and destroyed at least 1,236 structures. Over 2,500 structures remain threatened - while the Mendocino Complex fires threaten over 12,000 structures.
The carr fire has burned nearly 110,000 acres and is around 27% contained. Evacuation orders have been lifted for Douglas County and portions of Happy Valley, Redding and Shasta Lake City according to officials.
Meanwhile, firefighters hailing from 16 states are fighting against fatigue as they battle the infernos.
Meanwhile, the air quality in Redding has dropped to dangerous levels, as officials warn the public to stay indoors and wear a mask outside.
Several other fires continue to rage across California, including the Ferguson fire which has consumed more than 57,000 acres near Yosemite National Park leading to the closure of the Yosemite Valley, as well as the Cranston fire burning in the San Jacinto mountains east of Los Angeles which has burned over 13,000 acres and is 57% contained.
The cause of the blaze has been attributed to arson. Cal Fire officials arrested Brandon N. McGlover, 32, of Temecula for allegedly setting multiple fires in southwestern Riverside County on July 25, 2018.
The Riverside County Sheriff’s Office lifted evacuation orders for the communities of Pine Cove, Fern Valley, Cedar Glen, and portions of Idyllwild outside of the fire perimeter. -Accuweather
"Good work was done on the northeast portion of the fire where the biggest threat to the community persists," officials said Monday.