Sign In or Create an Account.

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

Climate

Extreme Heat Ambushes the Pacific Northwest Again

The Pacific Northwest sizzled beneath its first heat wave of the season. It probably won’t be its last.

The space needle.
Heatmap Illustration/Getty Images

The worst thing about growing up in Seattle was that school would get out before summer actually started. Every year around mid-June, when the last-day-of-school festivities were over, you still had to wait weeks before it would be warm enough to break out the Otter Pops or go swimming in the lake. Because, as every Seattle kid knows, summer reliably doesn’t start in the Pacific Northwest until July 5.

Or rather, as every Seattle kid knew.

Tuesday offered the first day of relative relief for the Pacific Northwest after four consecutive days of record-breaking spring heat (bless you, “deepening marine influence”). But it had been a doozy getting here: Some 12 million people in Washington and Oregon were under a heat advisory over the weekend as temperatures in the region topped out at more than 20 degrees above the normal high this time of year, which should be in the mid-60s.

Portland, Oregon, endured three straight days of 90-degree temperatures — more consecutive 90-degree days than Dallas, Texas, has seen this year, NBC News reports. Over the border in British Columbia, the city of Squamish hit what appears to be the blistering max of this particular heat wave: 96 degrees.

Some national news outlets correctly pointed out this heat wave is significantly cooler than the June 2021 “heat dome” that pushed temperatures to 116 degrees in Portland and 121 degrees in Lytton, British Columbia — an extreme weather event that killed an estimated 1,400 people in the U.S. and Canada. (This weekend’s heat event was also significantly different, meteorologically speaking).

But the question isn’t if the Pacific Northwest’s recent heat was its hottest ever. It’s if the region is prepared for this kind of anomalous heat to become a regular thing.

To be clear, tying a single heat wave to climate change involves extended study. Still, the nonprofit news organization Climate Central’s early analysis indicates that “human-caused climate change made the record-breaking spring heat forecast … up to 5 times more likely.” (The 2021 heat wave was ultimately found to have been “virtually impossible” without climate change).

It’s also well-researched at this point that heat waves are becoming worse and more frequent. Sure enough, in 2022, Seattle also had its longest heat wave ever. Events such as the one this weekend also increase the likelihood and intensity of future wildfires — a fact already evidenced in 2023 by a number of fires burning around the world, as I’ve previously written, including in Alberta, Canada, where this heat wave may further exacerbate already out-of-control burns.

But the Pacific Northwest is particularly susceptible to heat waves because it’s wildly unused to them. For one thing, there’s the physical shock of this kind of heat so early in the year: “Typically, unseasonably warm weather early in the ‘heat season’ can be particularly challenging to human health because the population is less acclimatized versus later in the summer,” Zac Schlader, an associate professor at Indiana University-Bloomington, told The Washington Post.

For another, it’s harder for people in the Pacific Northwest to cool down when it’s 90 out than for people in, say, Phoenix or Las Vegas — cities that were constructed with heat in mind. Seattle, for example, is the second-least-air-conditioned metro area in the country (behind only “the coldest winter I ever spent was a summer in” San Francisco). Just over half of the homes in the area have a/c, and many of them are new buildings.

The distribution is also unequal; many of the people who don’t have access to a/c live below the poverty level. Only recently has Oregon mobilized to require all new housing to have air conditioning installed in at least one room. Counterintuitively — as Heatmap has covered — there is also a very real risk that people in the Pacific Northwest, who don’t grow up having heat-coping techniques ingrained in them, could be in danger if the power grid fails and they suddenly aren’t able to rely on their a/cs.

There are other ways the region is worryingly ill-prepared for managing heat, too. Pacific Northwesterners, sick of dealing with the heat, might consider jumping into one of the region’s plentiful lakes and rivers. But those bodies of water are currently full of super-fresh new snowmelt and that water is very, very cold even when the air temperature is not. People die every year from the sudden shock of cannonballing into what looks like blissfully refreshing water. At the same time, many public pools in the area — a crucial resource during heat waves — are dealing with lifeguard shortages and weren’t able to open this weekend.

As hot as it is, though, it’s also still early in the year; so early, in fact, that snow hasn’t melted out of the mountains yet. But it has gotten warm up there, too. That means anyone who’s considering taking a hike in the heat could inadvertently end up in danger of, all things, an avalanche. And that’s not even to circle back to the fires, which will gobble up all the dry vegetation they can get whenever the right spark comes along.

If there’s a grim solace, though, it’s that practice makes perfect. The more extreme heat the Pacific Northwest experiences, the more its residents will learn to adjust. Already you can see these lessons being learned — Oregon’s a/c law, for one, as well as Seattle-area officials directing bus drivers to allow people to ride for free if they’re clearly escaping the heat. Regular people are also learning to recognize signs of heat illness or to preemptively keep their blinds closed in the mornings to maintain the dark, precious coolness inside.

There will be cultural changes as well, of course. Seattle kids don’t have to wait until the Fourth of July any longer to chase down ice cream trucks. As everyone knows, Pacific Northwest summers start in May.

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
Climate

AM Briefing: Clinging to Coal

On a new IEA report, EV batteries, and some good news about emissions

The World Just Can’t Seem to Quit Coal
Heatmap Illustration/Getty Images

Current conditions: Very windy conditions in the UK have sent wind power generation soaring but electricity prices plummeting • Strong storms are expected to bring heavy rain and possibly tornadoes to Nashville, Tennessee • It’s cloudy in Tokyo, where Nissan shares were up on the news that the automaker is in merger talks with Honda.

THE TOP FIVE

1. Federal land emissions are falling

Greenhouse gas emissions from U.S. federal lands peaked in 2009 and have been mostly falling ever since, according to a report from the U.S. Geological Survey. Federal lands make up nearly 30% of all the nation’s land. In 2009, annual emissions from fossil fuel extraction and use on these lands reached 1,430.9 million metric tons of CO2 equivalent, but had fallen to 1,118.9 million metric tons in 2022. Emissions saw a particularly steep drop in 2020, likely linked to the pandemic, and have been rising, but it’s not clear if the upward trend will continue. Wyoming is a major emitter: Its federal land CO2 emissions in 2022 made up 41% of the national total.

Keep reading...Show less
Yellow
Ideas

How Covid Shaped Climate Policy

Five years from the emergence of the disease, the world — and the climate — is still grappling with its effects.

A sun made of COVID.
Heatmap Illustration/Getty Images

A Great Global Calamity

Five years ago this month, the novel coronavirus that would eventually become known as Covid-19 began to spread in Wuhan, China, kicking off a sequence of events that quite literally changed the world as we know it, the global climate not excepted.

The most dramatic effect of Covid on climate change wasn’t the 8% drop in annual greenhouse gas emissions caused by lockdowns and border closures in 2020, however. It wasn’t the crash in oil prices, which briefly went negative in April 2020. It wasn’t the delay of COP26 and of the United Nations Intergovernmental Panel on Climate Change’s Sixth Assessment Report. And it wasn’t, sadly, a legacy of green stimulus measures (some good efforts notwithstanding).

Keep reading...Show less
Podcast

Energy Secretary Jennifer Granholm on What Comes After Biden’s Climate Agenda

Rob sits down in New York with the outgoing head of America’s energy apparatus.

Jennifer Granholm.
Heatmap Illustration/Getty Images

Jennifer Granholm has long been one of the most interesting figures in the Democratic Party. A former federal prosecutor, she was the governor of Michigan from 2003 to 2011, leading the state during the Great Recession and subsequent auto bailout. Since 2021, she has been the 16th U.S. Secretary of Energy. While there, she has overseen the department’s transformation from an R&D-focused agency to an aspiring engine of industrial strategy.

On this week’s episode of Shift Key, Rob sits down with Secretary Granholm in person in New York to conduct an exit interview, of sorts. What climate policies is she most proud of — and what does she hope Democrats do better next time? What does she wish that Democrats understood about fossil fuels? And what does she think the outlook for clean energy is in the years to come?

Keep reading...Show less
Blue