GUIDA (KPIX) — A fast-moving fire broke out Saturday afternoon in Yolo County, near Highway 16. Firefighters have dubbed it the Guinda Fire.

The blaze started around 2 p.m. Saturday and sent huge plumes of black smoke into the sky, hampering helicopter searches for evacuees.

READ MORE: Scotts Valley Neighborhood Lockdown Ends; Suspect Fired Shots At CHP Officer

The fire could be seen from Sacramento, some 50 miles away.

(CBS)

So far, some 8,000 acres have been charred, and hundreds of residents are evacuating.

Firefighters were facing challenging conditions as temperatures topped 100 degrees but they continued the fight the blaze by air and on the ground.

READ MORE: Three Injured In San Jose Stabbing; Suspect Remains At Large

“We have weather which is a huge issue- the terrain the topography, the fuels,” said Cal-Fire spokesman Anthony Brown. “We’re getting ready to run out of daylight so that’s going to hamper the air.”

Meantime, residents watched and waited.

“Our main focus was getting horses and livestock out — pretty much just get all of our friends and stuff out,” said resident Jake Franceschi.

Meantime, the massive Pawnee Fire burning northeast of Clearlake Oaks forced the evacuation of some 200 residents after it jumped containment lines. Fortunately no new structures were burned.

MORE NEWS: San Jose Becomes First City In Nation To Require Gun Liability Insurance

That fire has spread to 14,000 acres, and containment remains at 73 percent.