As the world heads into the final months of 2026, meteorologists and weather enthusiasts alike are sounding the alarm: this year’s El Niño is shaping up to be one for the record books. The National Oceanic and Atmospheric Administration (NOAA) has updated its prediction, now stating there’s more than a 90% chance that the coming Northern Hemisphere fall and winter will be marked by a very strong El Niño event—potentially one of the most powerful since records began in 1950, according to NOAA’s latest report published August 24, 2026.
For those who track global weather patterns, this news is both exciting and a little nerve-wracking. El Niño, a natural climate cycle characterized by warmer-than-average water temperatures along the equator in the Pacific Ocean, tends to set off a domino effect of atmospheric changes. These shifts can be felt around the globe, altering precipitation, snowfall, and even temperatures in ways that are, more often than not, predictable months in advance.
But this year’s El Niño is already defying expectations. According to Nat Johnson, a meteorologist at NOAA’s Geophysical Fluid Dynamics Laboratory, “This El Niño is something that’s very unusual, if not a once in a lifetime type of (strength).” That’s not the sort of statement climate scientists make lightly. NOAA’s data shows there’s a 69% chance that the event unfolding from October to December 2026 will be historic—possibly outstripping even the legendary El Niño years of the past seven decades.
What does this mean for the months ahead? For starters, folks on the West Coast of the United States should brace for a wet and wild winter. NOAA’s seasonal outlook points to “copious” precipitation for the region, especially in parts of California that already saw historic rainfall during the last major El Niño. The agency has bumped up the odds of above-normal precipitation to more than 50% for much of coastal California and southern Arizona. The trend is expected to extend along nearly the entire East Coast from November through April, raising the prospect of soggy months ahead for millions of Americans.
Snow lovers, especially those in the Sierra Nevada Mountains, are in for a treat. A snowfall anomaly map published by the Sacramento Bee and cited by NOAA suggests the Sierra Nevada will see well above normal snow as winter deepens, with a dramatic spike expected in January 2027. Bill Rock, president of Vail Resorts’ Mountain Division, captured the mood in a prepared statement: “While no one can predict exactly what Mother Nature will deliver, the possibility of blockbuster snowfall has us feeling optimistic about the winter ahead.”
Historical data backs up the optimism. During moderate-to-strong El Niño winters, states like California, Nevada, Utah, Arizona, Virginia, Delaware, and the southern parts of New Jersey typically experience much higher than average snowfall. A map from The Weather Channel underscores another quirk of El Niño: while the southern states get hammered with snow, northern states often see less than normal, as warmer temperatures cut into their usual totals.
But the story of El Niño 2026 isn’t just a North American affair. Thousands of miles to the south, the Andes Mountains of Chile and Argentina are experiencing a winter that locals and visitors alike are calling historic. According to a report published August 24, 2026, in Powder, South America is in the grip of one of the snowiest winters in recent memory. The season began slowly, with several ski resorts forced to delay their openings. Then, seemingly out of nowhere, a record blizzard dumped nearly 200 inches of snow in less than two weeks across resorts in Chile and Argentina.
Alec Blossom, a ski instructor from Jackson who spends his summers teaching at Ski Portillo, Chile, described the 190-plus-inch storm as “real snorkel territory.” That’s not an exaggeration—skiers found themselves plowing through snow so deep that even the mandatory air-outs in the Gargantita chutes were completely filled in, allowing for fast, uninterrupted runs. The snow didn’t stop there. Another storm last week delivered more than three feet of fresh powder to resorts like Portillo, Valle Nevado, Las Leñas, and La Parva.
The numbers are staggering. Nearly every ski resort in Chile and Argentina is reporting season snowfall totals that are significantly higher than average. And the forecast? More snow is on the way. Starting August 25, 2026, yet another multi-day storm is expected to hit, with OpenSnow predicting storm totals that could exceed 80 inches at Nevados de Chillan and 60 inches at Ski Portillo. The conditions have been so remarkable that Ski Portillo has announced it will extend its season into October for the first time in decades. As the resort’s staff put it, “When the mountain has this much to offer, saying goodbye just isn’t an option.”
For visitors lucky enough to be there, the experience has been nothing short of magical. One writer who recently stayed at Ski Portillo described it as “one of the best in-bounds powder skiing days I’ve ever had.” Locals marveled at the transformation of familiar terrain, with staff carving steps into snowdrifts that usually aren’t there and low-altitude runs buried under feet of powder. Even the path from the ski and boot room, typically flat, required new steps to navigate the deep snow.
It’s not just anecdotal. The data from both continents is clear: this winter is extraordinary. In the Northern Hemisphere, NOAA’s projections and historical maps suggest the West Coast and much of the southern United States will see wetter, snowier conditions, while northern states may experience a milder, less snowy season due to warmer temperatures. Meanwhile, the Southern Hemisphere’s ski resorts are reveling in one of their best seasons in decades, with snow totals smashing records and the promise of even more to come before spring arrives.
So, what’s driving this global winter spectacle? The answer lies in the Pacific Ocean, where the unusually strong El Niño is shifting weather patterns on a planetary scale. Warmer waters along the equator have set off a chain reaction in the atmosphere, fueling storms and precipitation from California to the Andes. While El Niño events are a natural part of Earth’s climate system, the sheer strength of this year’s event is, as NOAA’s Nat Johnson put it, “very unusual, if not a once in a lifetime” phenomenon.
For skiers, snowboarders, and weather watchers, the winter of 2026-27 is already shaping up to be unforgettable. Whether it’s the promise of powder days in the Sierra Nevada or the historic blizzards blanketing the Andes, one thing’s for sure: this is a season that will be talked about for years to come.