The weather patterns of the United States are set to be influenced by La Niña for the remainder of the winter, according to government forecasters. But here's where it gets intriguing: following a shift to 'neutral' conditions in spring and summer, there's a growing chance of El Niño making an appearance later in the year. This dynamic interplay between La Niña and El Niño is a natural climate cycle known as the El Niño-Southern Oscillation (ENSO).
La Niña, characterized by cooler-than-average ocean water in the tropical Pacific, is one of the main drivers of weather in the United States, especially during the late fall, winter, and early spring. It's the opposite of El Niño, which occurs when Pacific Ocean water is at least 0.9 degrees warmer than average for three months. The intermediate stage is known as ENSO-Neutral, when neither La Niña nor El Niño are present.
A typical La Niña winter in the United States brings cold and snow to the Northwest and unusually dry conditions to most of the Southern states. The Southeast and Mid-Atlantic also tend to see higher-than-average temperatures during a La Niña winter. According to the latest forecast, La Niña is expected to persist, followed by a 75% chance of a transition to ENSO-Neutral from January to March. ENSO-Neutral is likely to persist through at least the late spring, with a 61% chance of an El Niño developing by late summer.
But is it likely that La Niña will continue to impact our weather for the rest of this winter? Yes, according to climate scientist Michelle L'Heureux, who states that the official (prediction center) outlook indicates continued influence of La Niña through the winter. However, the appearance of El Niño could impact the 2026 Atlantic hurricane season, historically associated with quieter hurricane seasons in the Atlantic basin.
While it's still too early to say if next winter will be an El Niño winter, forecasters are keeping an eye on the possibility. This is due to the 'spring predictability barrier', a period of historically lower skill in model predictions. So, while we're not yet able to predict with certainty, the potential for an El Niño winter is on the radar.
