Sign In or Create an Account.

By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy

Climate

The Wind Forecast Brings New Worries in L.A.

Exhausted firefighters are unlikely to catch a break just yet.

A firefighter in Los Angeles.
Heatmap Illustration/Getty Images

On Friday, Angelenos awoke to their first good news in three days: that the battle against the city’s unprecedented fires had finally turned in firefighters’ favor. Though the two biggest blazes — the Palisades and the Eaton — were still only single-digit contained, at 8% and 3%, respectively, it was the first sign of progress since the fires ignited and roared out of control on Tuesday.

The days ahead, though, won’t be easy. Though the Santa Ana winds dipped enough on Thursday and Friday for firefighters to establish a foothold, two upcoming wind events have forecasters and emergency management officials worried. The first will be shorter-lived, beginning on Saturday afternoon and continuing through Sunday, but “it does look significant enough where we might need additional red flag warnings,” Ryan Kittel, an L.A.-based meteorologist with the National Oceanic and Atmospheric Administration, told me. NOAA is anticipating gusts of between 35 and 50 miles per hour during that event, and at those speeds, aerial firefighting support will likely be grounded again.

A second wind event will follow that one, which is tracking to hit Monday night into Tuesday. “We’re still figuring out the exact details as far as the strength, but we’re very confident that it won’t be nearly as strong as the winds we saw on Tuesday this week,” Kittel said. “But it could be number two in the ranks of wind events that we’ve had over the last seven days.”

The associated concerns are twofold. The first is that the return of strong wind gusts will fan the blazes that firefighters are only now getting a handle on, potentially pushing the fires into new areas. But there’s another concern, too: that new fires will start.

“What we’re trying to communicate is that the environment is favorable for a fire to get really big, really fast, if one starts. We just don’t know if or where,” Kittel said.

Though the L.A. fires flared up as big as they have because of the Santa Anas, the wind’s cessation creates new risks. The Santa Anas “blow the fires towards the ocean,” Dan Reese, a veteran firefighter and the founder and president of the International Wildfire Consulting Group, told me. But when the Santa Anas subside and L.A.’s normal west-to-east winds return, they’ll push the fires back in the other direction and potentially into neighborhoods that haven’t burned yet.

“Right now, [firefighters’] challenge is what we call closing the back door, making sure that what was once the heel of the fire, or the back side of the fire, does not get up and all of a sudden become a running head the other direction,” Reese explained.

The weather is one problem, and it’s a big one. But there are other challenges, too. Firefighters are only human, and many are completely exhausted after working double shifts and doing the grueling work of defending people and structures for days on end.

There are also logistics-related challenges. Aerial firefighting is exceedingly complex and dangerous, and pilots are only allowed to fly a certain number of hours, which varies depending on whether operations are conducted during the day or at night. “Rotating those crews and keeping those crew hours balanced becomes critical, especially when you’ve got ongoing, continuous fires,” Reese pointed out.

There’s one more bit of bad news. Putting out the fires is only the first challenge. A second will come close on its heels: the mop-up.

“Maybe the fire went through a community but the houses were left standing,” Reese said. “Now all those structures and properties are at the mercy of mudslides and rain, because all of the holding capacity keeping the soil in place has now been burned off.” Soil can even become hydrophobic after exposure to intense heat, repelling water instead of absorbing it, making runoff even more severe.

But there is no rain in the forecast, and the fight against the L.A. County fires — while it’s taken a turn for the better — is far from over. Firefighters “have to deal with the disaster they’ve got right now,” Reese said. “And then they’ll deal with the secondary disasters when those occur.”

You’re out of free articles.

Subscribe today to experience Heatmap’s expert analysis 
of climate change, clean energy, and sustainability.
To continue reading
Create a free account or sign in to unlock more free articles.
or
Please enter an email address
By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy
Electric Vehicles

Tesla Is Now a Culture War Totem (Plus Some AI)

The EV-maker is now a culture war totem, plus some AI.

A Tesla taking an exit.
Heatmap Illustration/Getty Images, Tesla

During Alan Greenspan’s decade-plus run leading the Federal Reserve, investors and the financial media were convinced that there was a “Greenspan put” underlying the stock market. The basic idea was that if the markets fell too much or too sharply, the Fed would intervene and put a floor on prices analogous to a “put” option on a stock, which allows an investor to sell a stock at a specific price, even if it’s currently selling for less. The existence of this put — which was, to be clear, never a stated policy — was thought to push stock prices up, as it gave investors more confidence that their assets could only fall so far.

While current Fed Chair Jerome Powell would be loath to comment on a specific volatile security, we may be seeing the emergence of a kind of sociopolitical put for Tesla, one coming from the White House and conservative media instead of the Federal Reserve.

Keep reading...Show less
Green
Climate Tech

Climate Tech Is Facing a ‘Moment of Truth’

The uncertainty created by Trump’s erratic policymaking could not have come at a worse time for the industry.

Cliimate tech.
Heatmap Illustration/Getty Images

This is the second story in a Heatmap series on the “green freeze” under Trump.

Climate tech investment rode to record highs during the Biden administration, supercharged by a surge in ESG investing and net-zero commitments, the passage of the Infrastructure Investment and Jobs Act and Inflation Reduction Act, and at least initially, low interest rates. Though the market had already dropped somewhat from its recent peak, climate tech investors told me that the Trump administration is now shepherding in a detrimental overcorrection. The president’s fossil fuel-friendly rhetoric, dubiously legal IIJA and IRA funding freezes, and aggressive tariffs, have left climate tech startups in the worst possible place: a state of deep uncertainty.

Keep reading...Show less
Blue
Energy

AM Briefing: Overheard at CERAWeek

On the energy secretary’s keynote, Ontario’s electricity surcharge, and record solar power

CERAWeek Loves Chris Wright
Heatmap Illustration/Getty Images

Current conditions: Critical fire weather returns to New Mexico and Texas and will remain through Saturday • Sharks have been spotted in flooded canals along Australia’s Gold Coast after Cyclone Alfred dropped more than two feet of rain • A tanker carrying jet fuel is still burning after it collided with a cargo ship in the North Sea yesterday. The ship was transporting toxic chemicals that could devastate ecosystems along England’s northeast coast.

THE TOP FIVE

1. Chris Wright says climate change is a ‘side effect of building the modern world’

In a keynote speech at the energy industry’s annual CERAWeek conference, Energy Secretary Chris Wright told executives and policymakers that the Trump administration sees climate change as “a side effect of building the modern world,” and said that “everything in life involves trade-offs." He pledged to “end the Biden administration’s irrational, quasi-religious policies on climate change” and insisted he’s not a climate change denier, but rather a “climate realist.” According toThe New York Times, “Mr. Wright’s speech was greeted with enthusiastic applause.” Wright also reportedly told fossil fuel bosses he intended to speed up permitting for their projects.

Keep reading...Show less
Yellow