Smoke and flames are seen as a wildfire spreads through Redding, California, the U.S., July 26, 2018, in this still image taken from a video obtained from social media.
"Firefighters continue to work aggressively to build containment lines around the Carr Fire", Cal Fire said late Thursday.
Evacuations are in place in many areas on the west and north sides of Redding. The Ferguson Fire near Yosemite National Park, which has charred 45,911 acres (18,500 hectares), was 29 percent contained.
CAL Fire officials report that a Redding firefighter, now identified as Jeremy Stoke, was killed while assigned to the blaze, which was ignited by a vehicle fire on Monday off Highway 299 in Whiskeytown.
The blaze has killed two so far - a bulldozer operator and a firefighter - and has burned three firefighters, destroyed dozens of homes and forced thousands of terrified residents to flee, the AP reported.
Two other major fires are also burning in the state.
A raging wildfire has killed two people in Northern California near its border with OR, destroyed buildings and forced evacuations after it jumped the Sacramento River.
Cal Fire said the Carr Fire had grown early Friday to 44,450 acres and was just 3 percent contained.More news: Aaron Rodgers joins Danica Patrick in 'I, Tonya' parody played at ESPYS
Scott McLean, a CalFire spokesman for the crews battling the blaze, said flames swept through the communities of Shasta and Keswick before jumping the Sacramento River and reaching Redding, a city of about 92,000 people - the largest in the region.
KRCR, a Redding, California, TV station and CNN affiliate, interrupted it's newscast and evacuated its facility Thursday night as the fire approached their studio.
Warm air further dries out the land and provides blazes with more fuel, though gusty winds are hugely important contributors - if not the most important factor.
On Thursday, she says a friend who lives about a mile away called her around 8 p.m. "We are going to leave the station because it is now unsafe to be here", Woods announced.
California Governor Jerry Brown declared a state of emergency in Shasta and Riverside Counties on Thursday over the Carr and Cranston fires, which were being supercharged by temperatures above 37 degrees, erratic winds and low humidity. On Thursday morning, the blaze was burning across 20,000 acres, fire officials said.
A city in California has been left looking like hell on earth after a rapidly moving wildfire jumped across a river.
Authorities arrested a Temecula man on suspicion of setting the fire.
This year so far, nearly 1.6 million hectares have been blackened by wildfires, above a 10-year average of 1.5 million hectares over the same period, according to the National Interagency Fire Center.