Scott Smith ?and Robert Jablon

LAKE ISABELLA, CALIF.: A voracious and deadly wildfire in central California has burned 150 homes, and the toll may rise, fire officials said Saturday.

The tally rose from 80 homes as firefighters began going through neighborhoods to count houses and mobile homes incinerated by the blaze.

Entire blocks were reduced to rubble, and at least 2,500 homes remained threatened.

The winds that drove the fire through small southern Sierra Nevada communities calmed by late afternoon, helping firefighters gain access to the fire line. However, hot weather and low humidity remained a worry.

“That’s something we have to keep an eye on. It could spark another disaster,” Kern County fire Engineer Anthony Romero said.

About 1,140 firefighters battled the flames.

Gov. Jerry Brown declared a state of emergency, freeing up money and resources to fight the fire and to clean up in the aftermath. The Federal Emergency Management Agency also authorized the use of funds for firefighting efforts, fire officials said.

Since it began Thursday, the fire has swept through 35,711 acres — nearly 56 square miles — of parched brush and timber. It moved so quickly that some residents barely had time to escape — and two didn’t.

An elderly couple apparently was overcome by smoke as they tried to flee, county Sheriff Donny Youngblood said. Their bodies were found Friday.

Allen Montgomery, 40, who lives across the street from the couple, said he didn’t know their names but understood that the woman was bedridden.

Jim Terry and his neighbor took a chance and used garden hoses to keep their rooftops and trees damp as flames raced toward them.

He gave up when thick, black smoke rolled toward him, Terry said.

“I never quit in my life but it was time to throw in the towel,” he said Saturday when he returned to check on his house.