Wildfire in Oregon destroys 4 homes, threatens thousands more, as flames spare California wineries

"We are deeply saddened by the loss of homes and personal property and extend our sympathy to those affected," Deschutes County Sheriff Ty Rupert said in a statement.

Flames still threatened nearly 4,000 homes, fire spokesperson Gert Zoutendijk said Monday. He said crews were taking advantage of slightly cooler temperatures that dipped into the high 80s (31 C), and even some scattered rain.

"A little bit of rain does some good right now, but later, if the sun comes out, it doesn't take long to dry everything out again," Zoutendijk said.

A heat advisory was in place through Wednesday, and forecasters warned that potential thunderstorms could create erratic winds that would challenge firefighters.

Flames in California's wine country

Meanwhile, the Pickett Fire in Northern California has charred about 10 square miles (26 square kilometers) of remote Napa County, known for its hundreds of wineries. It was 13% contained on Monday.

Flames spared the home and adjacent vineyards of Jayson Woodbridge of Hundred Acre wines, but he said it was a close call on Thursday when the fire broke out and raced along nearby slopes.

He and his son grabbed hoses and futilely began spraying down the steep hillsides. "The water was evaporating as fast as we were spraying it out there," Woodbridge recalled Monday. "It was just a hot funnel of air. Fire was just engulfing everything."

Before long, crews with bulldozers and air support arrived to protect the property. Water-dropping helicopters continued their flights on Monday, keeping the flames contained to remote canyons about 80 miles (130 kilometers) north of San Francisco.

With about a month to go before harvest, Woodbridge said his grapes won't be damaged because of the "pure luck" of wind direction.

"The smoke won't affect the fruit because the wind's coming in from the west, thankfully," Woodbridge said. That wasn't the case in 2020 when toxic smoke from the Glass Fire caused Woodbridge and other wineries to scrap much of that year's crop.

There have been no reports of damage to any vineyards from the Pickett Fire, said Michelle Novi with Napa Valley Vintners, a nonprofit trade association.

Firefighting resources have been put in place to protect wineries, especially as winds pick up later in the day, according to the California Department of Forestry & Fire Protection, or Cal Fire.

"With the weather over the last 48 hours, we're seeing high temperatures, low humidity paired with some increasing wind in the late afternoon, which was giving our troops some additional work on the eastern side of this incident," Cal Fire spokesperson Curtis Rhodes told The Associated Press on Monday.

A firefighter dies in Montana

In southwest Montana, a firefighter died Sunday afternoon after suffering a cardiac emergency while battling the Bivens Creek fire.

The man, who was not immediately identified, was among more than 700 firefighters working on the lightning-caused fire in the Tobacco Root Mountains about 15 miles (24 kilometers) north of Virginia City, Montana.

The Bivens Creek fire has burned approximately 3 1/2 square miles (9 square kilometers) since Aug. 13 in a remote area with thick timber and numerous dead trees.

Heat wave complicates the firefighting efforts

Residents of the western United States have been sweltering in a heat wave that hospitalized some people, with temperatures hitting dangerous levels throughout the weekend in Washington, Oregon, Southern California, Nevada and Arizona.

After a weekend of triple-digit temperatures, authorities in Multnomah County, Oregon, said they were investigating the death of a 56-year-old man as possibly heat-related.

The area of the Oregon fire is in a high desert climate, where dried grasses and juniper trees are burning and fire is racing through tinder-dry canyon areas where it's challenging to create containment lines, said Deschutes County sheriff's spokesperson Jason Carr.

In central California, the state's largest blaze this year, the Gifford Fire, was at 95% containment Monday after charring nearly 206 square miles (534 square kilometers) of dry brush in San Luis Obispo and Santa Barbara counties since erupting on Aug. 1. The cause is under investigation.

Although it's difficult to directly tie a single fire or weather event directly to climate change, scientists say human-caused warming from burning fossil fuels like coal and gas is causing more intense heat waves and droughts, which in turn set the stage for more destructive wildfires.