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

After a year that challenged nearly every long-range forecast, weather uncertainty remains a dominant theme heading into 2026. Shifting climate signals with La Niña looking to make a quick exit, ...

Rules for classifying the two patterns recently changed.

As Northern California's rainy season quickly approaches, meteorologists are anticipating "extreme" weather events to hit the state for the rest of 2025. "Expect extremes, so dry periods interrupted ...

When checking your local weather on the news or using various weather services like your iPhone weather app, you'll sometimes hear meteorologists referencing a La Niña event as part of their forecast ...

Climate troublemaker La Niña will play a starring role in the United States' winter weather, federal forecasters from the Climate Prediction Center said Thursday, Nov. 13. "La Niña continued over the ...

For the second year in a row, California is expected to experience a La Niña weather pattern, potentially bringing some rain for far northern regions. Starting this month, there’s a 56% chance of a La ...

La Niña occurs when the sea-surface temperatures over the eastern Pacific Ocean, near the equator, are colder than average. At first, that might sound arbitrary, because why would ocean temperatures ...