With our free press under threat and federal funding for public media gone, your support matters more than ever. Help keep the LAist newsroom strong, become a monthly member or increase your support today during our fall member drive.
El Niño Is Here. Imagine What A Strong One Would Mean To Southern California
A band of warmer ocean water observed along the equator by the Sentinel-6 Michael Freilich satellite on April 24.
(
Courtesy NASA/JPL-Caltech
)
This story features Beeline Reader for enhanced readability. Click to turn the feature on or off. Learn more about this technology here.
It looks like after three years of La Niña, we're officially contending with an El Niño climate pattern. The conditions are now present, and there's a greater than 50% chance that it’ll be a particularly strong one, according to an alert from the National Weather Service.
Its arrival is due in part to warming waters in the central and eastern equatorial Pacific, which NASA’s Sentinel-6 Michael Freilich satellite picked up over the past few months.
Along with those warming waters, the El Niño is associated with weakening trade winds, and impacts to atmospheric circulation, which can have all sorts of influences on weather patterns around the world.
Support for LAist comes from
(If you're wondering how this all fits in with Typhoon Mawar, the Category 4 cyclone that lashed Guam ... it doesn't. The El Niño had yet to start. Still, the National Weather Service warns that El Niño could increase the risk of stronger tropical cyclones slamming into Micronesia.)
Understanding climate patterns
El Niño vs. La Niña
-
The climate patterns known as El Niño and La Niña can have substantial impacts on the weather in California. They tend to develop some time around March, with one or the other coming along every three to five years, according to the National Oceanic and Atmospheric Administration.
-
What's the difference between them?
Here are the basics:
-
El Niño
- Tends to last 9-12 months.
- Occurs when trade winds weaken, and waters in the eastern and central equatorial Pacific warm.
- Can result in wetter weather in Southern California and drier weather further north.
-
La Niña
- Can last 1-3 years.
- Occurs when strong trade winds build, and waters in the eastern and central equatorial Pacific cool.
- Can result in drier weather in SoCal and wetter weather further north.
What it means for California
The most sizable impacts from El Niño are generally observed here during the late fall and winter months.
A look at an El Niño weather pattern.
(
Courtesy NOAA
)
Support for LAist comes from
In the central and southern parts of California, it could mean an increased likelihood of cool and wet weather, as the jet stream that normally brings precipitation to the West Coast can shift south, pushing storms towards us instead of Washington and Oregon. This could potentially mean great news for snow in the southern Sierra Nevada.
Impacts can be more pronounced when the climate pattern is strong. In that case, we could see the cool and wet weather creep further north.
That said, there's no guarantee that next winter will be wet.
“El Niño basically shifts the probability or likelihood of certain types of events,” said Karen McKinnon, professor of statistics and the environment at UCLA. “But it’s not deterministic.”
Weather and climate are quite complicated, and all sorts of events like wildfires in Australia, can have sizable impacts we — and our models — don’t always anticipate.
What El Niño generally means for everyone else
Much of the southern U.S. could see wetter conditions as well. The northwestern U.S. and parts of the midwest could tend towards drier weather.
Support for LAist comes from
A map detailing the potential impacts of El Niño from December through February.
(
Courtesy NOAA
)
El Niño is associated with drier conditions in parts of Australia, Southeast Asia and Africa.
Globally, El Niño tends to push temperatures higher than normal as more of the heat that’s in the Earth’s system moves from the ocean to the atmosphere. Add to that the extreme warming we're already seeing as a result of climate change, and there's a 98% chance that one of the next five years will be the hottest on record for the globe, according to the World Meteorological Organization.
About our gray skies
That Southern California you might be missing has fallen victim to May Gray and June Gloom. The phenomena marks the transition from cool winter weather to scorching summer temperatures.
(
Courtesy NWS
)
Updated June 9, 2023 at 10:36 AM PDT
This story was updated to indicate that El Niño conditions are now officially present.
At LAist, we believe in journalism without censorship and the right of a free press to speak truth to those in power. Our hard-hitting watchdog reporting on local government, climate, and the ongoing housing and homelessness crisis is trustworthy, independent and freely accessible to everyone thanks to the support of readers like you.
But the game has changed: Congress voted to eliminate funding for public media across the country. Here at LAist that means a loss of $1.7 million in our budget every year. We want to assure you that despite growing threats to free press and free speech, LAist will remain a voice you know and trust. Speaking frankly, the amount of reader support we receive will help determine how strong of a newsroom we are going forward to cover the important news in our community.
We’re asking you to stand up for independent reporting that will not be silenced. With more individuals like you supporting this public service, we can continue to provide essential coverage for Southern Californians that you can’t find anywhere else. Become a monthly member today to help sustain this mission.
Thank you for your generous support and belief in the value of independent news.
Chip in now to fund your local journalism
(
LAist
)
Trending on LAist
-
A tort claim obtained by LAist via a public records request alleges the Anaheim procurement department lacks basic contracting procedures and oversight. -
Flauta, taquito, tacos dorados? Whatever they’re called, they’re golden, crispy and delicious. -
If California redistricts, the conservative beach town that banned LGBTQ Pride flags on city property would get a gay, progressive Democrat in Congress. -
Most survivors of January's fires face a massive gap in the money they need to rebuild, and funding to help is moving too slowly or nonexistent. -
Kevin Lacy has an obsession with documenting California’s forgotten and decaying places. -
Restaurants share resources in the food hall in West Adams as Los Angeles reckons with increasing restaurant closures.
Best of LAist