By GILLIAN FLACCUS

THe Associated Press

SAN DIEGO – Faced with unrelenting winds whipping wildfires into a frenzy across Southern California, firefighters all but conceded defeat Tuesday to an unstoppable force that has already chased nearly a million people away.

Unless the shrieking Santa Ana winds subside, and that’s not expected for at least another day, fire crews say they can do little more than try to wait it out and react – tamping out spot fires and chasing ribbons of airborne embers to keep new fires from flaring.

“If it’s this big and blowing with as much wind as it’s got, it’ll go all the way to the ocean before it stops,” said San Diego Fire Capt. Kirk Humphries. “We can save some stuff, but we can’t stop it.”

Tentacles of unpredictable, shifting flame have burned across nearly 600 square miles, killing two people, destroying more than 1,300 homes and prompting one of the biggest evacuations in California history, from north of Los Angeles, through San Diego to the Mexican border.

Gov. Arnold Schwarzenegger said the flames were threatening 68,000 more homes.

“We have had an unfortunate situation that we’ve had three things come together: very dry areas, very hot weather and then a lot of wind,” Schwarzenegger said. “And so this makes the perfect storm for a fire.”

In Rancho Santa Fe, a suburb north of San Diego, houses burned just yards from where fire crews fought to contain flames engulfing other properties. In the mountain community of Lake Arrowhead, cabins and vacation homes went up in flames with no fire crews in sight.

“These winds are so strong, we’re not trying to fight this fire,” said firefighter Jim Gelrud, an engineer from Vista, Calif.

More than a dozen wildfires blowing across Southern California since Sunday have killed two people and forced the evacuation of more than 350,000 houses, encompassing nearly 950,000 people based on average household size. More than 40 people have been injured, including 16 firefighters.

President Bush declared a federal emergency for seven counties, a move that will speed disaster-relief efforts.

The sweeping devastation was reminiscent of blazes that tore through Southern California four years ago, killing 22 and destroying 3,640 homes.