Following the powerful El Niño of 2023–2024, one of the most intense in recent memory, climate scientists are now turning ...

El Nino and La Nina not only disrupt weather patterns but also play a role in triggering agricultural, public health, political, and economic issues.

Learn how El Nino and La Nina can contribute to severe weather leading to heavy storms in some regions and droughts in others. Read about the causes and effects of El Nino and La Nina.

The current El Niño is now one of the strongest on record, new data shows, catapulting it into rare “super El Niño” territory, but forecasters believe that La Niña is likely to develop in ...

“The old La Niña playbook and the old El Niño playbook don’t seem to be as reliable as they used to be,” said Jan Null, an adjunct professor of meteorology at San Jose State University.

The cycle revolves around two phases: El Niño warm phases and La Niña cold phases. An El Niño is declared when sea temperatures in the tropical eastern Pacific rise 0.5 °C (0.9 °F) above average.

La Niña can often last for longer than El Niño. During La Niña, there was increased drought in the southern U.S. along with heavy rains and flooding in Canada and the Pacific Northwest.

An El Niño or La Niña happens every 2 to 7 years on average. El Niño years are slightly more common than La Niña. In 2017, forecasters think a La Niña is likely So depending on where you live ...

La Niña essentially gets its name from being the opposite of El Niño. It has also been called “El Viejo, anti-El Niño, or simply a ‘cold event,'” NOAA says.

A strong El Niño pattern has been in place over the Pacific Ocean during the 2023-2024 winter season. This year's winter impacts of warmer weather may vary wildly as the Pacific Northwest ...