Tens of thousands of people have been evacuated from their homes as deadly fires rage in Mexico and California.
Reports say at least three people have died, with homes destroyed and buildings razed around Tijuana, Mexico's Californian Peninsula.
Two died in Tecate and one in Rosarita in what authorities were calling wind-related fires, the San Diego Union Tribune reports.
Tonight, firefighters are racing against time battle to contain wildfires in California amid fears forecast winds will whip up the infernos that have been burning for days in the US state.
Thousands of firefighters are defending counties from the infernos that at one point encroached on densely-populated suburban Los Angeles.
The blazes have ripped through the US sunshine state's major southern city and counties that span its wine country region since Thursday.
Around 50,000 people near California's famed Sonoma county wine country were ordered to evacuate yesterday amid fears winds forecast to rip through the area would spread the flames according to Reuters.
By Saturday afternoon local time, firefighters were cutting defensive lines against the wildfire threatening the area.
The 25,000-acre Kincade Fire in rugged and steep terrain north of San Francisco was one of two major wildfires burning in California today, local time.
A second inferno, the Tick Fire, has been raging in suburban Los Angeles where it has charred 4,600 acres.
The more than 2,000 firefighters battling the Kincade Fire, which officials said was 10 per cent contained by Saturday afternoon, and had destroyed nearly 50 structures, faced a more immediate threat of escalation from weather than crews battling the Tick Fire.
The state's authorities had yesterday declared a state of emergency in counties affected by two wildfires burning on Friday.
The threat posed by the blaze saw a major electric and gas supplier warn nearly one million Californian households can expect protective blackouts over the weekend.
Pacific Gas and Electrical (PG & E), which was deemed responsible for causing the state's most destructive ever wildfire in 2018 - the 'Camp' fire - warning households should brace for their power to be shut off this weekend in affected counties.
The National Weather Service has issued a "red flag" warning for areas around the Kincade Fire tonight.
Low-humidity conditions have dried out plants and trees and left the flames with plenty of combustible fuel.
And conditions were only expected to worsen.
Winds picking up on Saturday afternoon are forecast to reach peak intensity late at night into early Sunday.
The forecast warns of sustained speeds of up to 55 miles per hour (90 kph) and gusts of 80 mph (130 kph) in mountains and canyons, said Jeremy Grams, lead forecaster at the federal Storm Prediction Center.
"Any ongoing fires or any new fire starts will have the opportunity to spread very rapidly," he said.
The winds were forecast to weaken on Sunday afternoon.
The cause of the Kincade Fire is still under investigation, but officials have said it erupted on Wednesday near the base of a damaged high-voltage transmission tower owned by the troubled utility PG & E.
Earlier in the week, authorities had ordered 2,000 people to evacuate their homes, with Sonoma County Sheriff's Office spokeswoman Karen Hancock describing the flames as having come closest to the community of Geyserville.
On Saturday, authorities expanded evacuation orders in the nearby communities of Windsor and Healdsburg, with more than 50,000 people told to leave home by 4 p.m. local time when power was expected to be shut off in those areas, Hancock said.
The blaze also encroached on wineries in a region full of internationally known vintners, including "The Godfather" director Francis Ford Coppola.
Two residents of Geyserville and a firefighter were injured on Friday evening, when they had to crawl into an emergency fire shelter to protect against quickly advancing flames, San Francisco television station KRON reported.
Authorities dispatched air planes to attack the blaze with huge payloads of fire retardant.
The Tick and Kincade fires have worsened air quality in LA, San Francisco and areas around the two major cities.
In L.A.'s San Fernando Valley, which is just south of the Tick Fire, officials closed all public schools on Friday, giving thousands of students the day off because of poor air quality.
At its peak, the Tick Fire burning in the Santa Clarita Valley north of LA had forced the evacuation of about 50,000 people.
It has destroyed at least nine structures since erupting from an unknown cause on Thursday and has been 25 per cent contained, officials said on Saturday evening.
