El Niño might be back later this year; major climate agencies that closely watch the tropical Pacific have recently updated ...

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.

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

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.

Rules for classifying the two patterns recently changed.

Feb 12 (Reuters) - There is a 60% chance of a shift in the climate phenomenon known as La Niña towards El Nino in ...

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

A new index will help scientists and forecasters better identify El Niño and La Niña events in the future as the climate ...

NOAA is to start using a new index, known as 'RONI,' to classify El Niño and La Niña events.

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 ...

CLEVELAND — Hundreds of years ago, fishermen casting their nets off the coast of Peru and Ecuador noticed something unusual. Every few years, the ocean water in their usually productive fishing ...