El Niño may take shape later this year, and the ripple effects could show up in U.S. weather during the second half of 2026.

You may have heard of El Niño and La Niña before, but what exactly are they? El Niño and La Niña are two of the three different phases of what is called the El Niño Southern Oscillation, or ENSO. ENSO ...

While La Niña is currently holding its own, the expectation is that an El Niño will develop by the peak of hurricane season. Here's why that's a big deal.

Two major weather agencies think it's increasingly likely that El Niño will form in the eastern tropical Pacific Ocean later this year. If these forecasts hold, we could face a dramatic reshuffling of ...

The Pacific Ocean is warming so quickly that scientists had to find a new method for detecting and predicting El Niño and La Niña events.

The large-scale Pacific Ocean climate patterns that help steer weather patterns around the globe are shifting yet again.

Add Yahoo as a preferred source to see more of our stories on Google. Shown are sea-surface temperature anomalies across the world. Temps in the equatorial Pacific Ocean are below average, signaling ...

Add Yahoo as a preferred source to see more of our stories on Google. La Nina tends to shift the polar jet stream, which for us in Texas, often leads to less rainfall and above-normal warmth in winter ...

The powerful weather pattern is expected to shift into gear again around June, NOAA said, though its strength this time ...

Rules for classifying the two patterns recently changed.

Farmers across the U.S. are watching the Pacific closely this year as NOAA predicts La Niña could exit faster than expected, potentially giving way to an El Niño later in 2026. While this transition ...