For Californians who might have to escape wildfire again this year, the options are perilous. Many live in communities that don't have well-thought-out public evacuation plans and lack the road capacity that's needed to get everyone out fast.

Does this mean people should just shelter in place?

Absolutely not, except as a last-ditch resort, according to wildfire experts.

In many cases, only luck determines whether a temporary refuge ends up being scorched by a fast-moving, powerful and unpredictable wildfire. The safest alternative? Evacuate and do it early, experts say.

"I would never want to delude someone into thinking that they can ride out a fire and live to tell about it," said Roy Wright, president and CEO of the Insurance Institute for Business and Home Safety and a vocal opponent of shelter-in-place approaches.

"We should be teaching the public to get out of harm's way," said Wright. Several of his own relatives were living in Paradise, California, when the Camp Fire roared through in November 2018. Those family members safely evacuated, he said.

Even information distributed to residents of San Diego County's Rancho Santa Fe development — a so-called "shelter-in-place community" where every home's materials and all landscaping is designed to the highest fire-resistant standards — strongly urges that early evacuation should always be the first move.

Cliff Hunter, who retired as fire marshal of the Rancho Santa Fe Fire Protection District in 2011, said wildfires typically flash through in 20 minutes or so. The district's homes are built to withstand those blazes, while vegetation is meticulously maintained to "defensible space" standards.

Despite all that, Hunter said, "we recommend evacuation because we don't know how that homeowner will react when that wildland fire comes there."

Wildfires "are very noisy, very loud. Things are hitting your windows. It gets pretty scary and it gets difficult to breathe. If (people) don't know how to function in that kind of environment, they panic" and may abandon their home after it's too late, fleeing into the worst of the fire, he said.

Still, relatively defensible places can become lifesavers when the better options are gone.

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'WHAT WORKS IN ONE CASE DOESN'T WORK IN OTHERS'

The increasing frequency of wildfires means "we'll need more shelter because there'll be more intense fires burning closer to communities and offering less time" to evacuate, said Tom Cova, a professor of geography at the University of Utah who has studied wildfire's impact on public safety. Equipping homes with the latest fire-resistant features — including upgraded roofs, windows and landscaping — is a necessary part of the equation, he said.

When evacuation is deemed too dangerous, that "shelter will become more important, as a backup plan." Cova said. "Or maybe, if you don't have your mobility, shelter is your first choice."

"Almost every outcome has happened, which is why we can't ever come up with the ultimate protective action. We can't just say, 'just do this,' because the scenarios vary so much that what works in one case doesn't work in others."

In recent years, there have been several instances where fire officials said advance planning and quick decision-making led to shelter-in-place efforts gone right.

— With thousands of patrons inside, just one road out and the 2003 Cedar Fire advancing fast in the middle of the night, San Diego County fire officials knew it wasn't possible to evacuate the Barona Resort and Casino in time. Instead, they put the expansive complex surrounded by protective parking lots on lockdown, using the casino's loudspeakers to tell patrons to stay put. Outside, firetrucks sprayed water on hundreds of cars to keep them from igniting. "It wasn't the preferred thing to do. It was kind of what they were forced to do in those challenging circumstances," said John Todd, deputy chief of the Los Angeles Fire Department. "A lot of people died in that fire. And probably if they had evacuated the Barona Casino, that toll would have gone up."

— Howling winds during the 2008 Tea Fire pushed that blaze to the campus of Westmont College near Santa Barbara, destroying several residence halls and classrooms. More than 200 students, faculty and staff were evacuated to the Murchison Gymnasium, where they stayed the night. Although the gym was smoky and hot, the building didn't burn and there were no fatalities.

— Hundreds of students sought temporary refuge at Pepperdine University in Malibu last November, even as much of the community surrounding the campus went up in flames during the Woolsey fire. University leaders had encouraged — but not required — students to stay in the Payson Library and Tyler Campus Center rather than join roads full of others trying to escape. The 830-acre campus' low-slung buildings are surrounded by "hundreds of yards of grass" which served as a natural buffer from the wildfire, said Todd. The school's practice of having students shelter in fire-resistant structures on campus is backed by the Los Angeles County Fire Department, but the decision still raised controversy, as The Desert Sun reported at the time.

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A CENTRAL GATHERING SPOT AS LAST RESORT

During the Camp Fire in Paradise, hundreds of desperate residents sought shelter in precarious and unlikely spots.

Some people fled to Paradise Alliance Church, one of two city-designated gathering points.

A firetruck protected the sanctuary as the wind-driven blaze whipped and raged just beyond the building's doors. The church, along with the residents who sought refuge there, survived.

The other designated disaster gathering spot was a large parking lot between the 765-seat Paradise Performing Arts Center and the Paradise Senior Center on Nunneley Road.

The concert venue still stands. The senior center was destroyed, although no deaths were reported there.

During the height of the Camp Fire disaster, with the main road to safety jammed, fire officials also directed dozens of motorists to a grocery store's large asphalt parking lot. It wasn't designated in advance, but the ad hoc solution worked.

After several harrowing hours amid the smoke, heat and ashes, the wildfire passed, leaving everyone in the parking lot alive.

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NEW PROPOSALS RAISE QUESTIONS

Still, the bias for early evacuation prevails nearly everywhere. That makes a proposal in Squaw Valley, a dramatic setting in the mountains on the northwest perimeter of Lake Tahoe, somewhat unique.

Like many others, resident Peter Schweitzer worries that should a wildfire ever reach the community where he's lived for 10 years, motorists evacuating on the area's main exit — the winding and narrow Squaw Valley Road — could run into dangerous delays.

But an alternative proposed by the Placer County town's fire officials — having residents and visitors shelter-in-place in the ski resort community's 5,000-car parking lot — makes him even more nervous.

"We've seen how these fires can grow so quickly," said Schweitzer. He fears chaos could ensue if authorities tried to direct thousands of panicked people to the designated shelter-in-place spot.

And, he asked, once residents reached that parking lot, would they really be safe?

"Am I going to stay in the parking lot ... while the fires burn down around me and propane tanks explode and embers are flying and cars catch fire?" said Schweitzer. "I just don't know. I think I'd try to get out."

While that scenario has never occurred in Squaw Valley, the potential is fresh in the minds of many people who live in California's wildfire country, where the new fire season is already arriving.

In Santa Barbara County, Deputy Fire Marshal Rob Hazard has spent time thinking about where people could go if they couldn't get out.

"In the real world," Hazard said, members of the public may have waited too long to evacuate, must retreat due to wildfire, or can't evacuate because their exit road is blocked.

His department is now devising alternatives for people whose evacuation routes are dicey because they live in remote locations along winding mountain roads.

Hazard said the department has scouted out large, undeveloped meadows on private land that could serve as temporary refuge from high intensity wildfires that often pass through quickly.

"We could put 50 people in here in their cars and they could probably ride it out," he said.