La Niña has finally emerged after months of anticipation, but there’s a catch, and it could impact its influence on the weather.
NOAA has declared that a La Niña is underway. This cool weather event is likely to be shorter and weaker than usual, but will still affect global weather and climate.
La Niña reared its head in the tropical Pacific in December 2024 and it's likely to linger for a few more months. What does that mean? In short, colossal climatic forces are set to drive lower average temperatures,
A La Niña advisory is in effect. La Niña occurs when the ocean's surface temperatures in the central and east-central equatorial Pacific reach a specific cooler-than-average level, as circled below. In addition, the response of atmospheric circulations globally are also considered.
Historically, about 75% of the time, this pattern produces below-average rainfall for San Luis Obispo and Santa Barbara counties. This rain season, spanning July 1, 2024, to June 30, 2025, has followed a classic La Niña pattern, where the storm track shifts northward into the Pacific Northwest.
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La Niña Definition La Niña is one half of the El Niño–Southern Oscillation (ENSO) cycle—when the east-central tropical Pacific turns cooler than average and the Walker circulation (the prevailing atmospheric pattern over the Pacific) strengthens.
StormTRACKER meteorologist Lydia Blume explains what La Niña conditions are and what that means for the northern Plains for the rest of the winter in terms of temperatures and precipitation.
Once the La Nina pattern transitions to a neutral pattern, we are expected to stay there for the bulk of 2025. There is no strong signal for El Nino to return anytime soon. See a spelling or grammar error in our story? Click Here to report it. Please include the headline.
After months of waiting, La Niña conditions finally emerged in the tropical Pacific last month, according to the National Weather Service Climate Prediction Center.
With below-average temperatures in the Pacific Ocean, the Climate Prediction Center says La Niña is here to stay this winter.
The planet-cooling climate pattern known as La Niña is here, scientists said Thursday, but it cannot prevent 2025 from being one of the hottest years on record.