A weak La Nina has appeared, cooling Pacific Ocean waters, but its impact on global weather is expected to be minimal. La ...

A long-awaited La Nina has finally appeared, but meteorologists say the periodic cooling of Pacific Ocean waters is weak and ...

After months of anticipation, a weather-changing La Niña has developed in the equatorial Pacific further adding to drought ...

La Niña, the periodic cooling of Pacific Ocean waters, has finally arrived, but forecasters predict it is weak and unlikely to cause as many weather problems as typically seen.

La Niña, the flip side of El Niño, is an irregular rising of unusually cold water in a key part of the central equatorial ...

And they're not sure why. "It's clear that the model predictions have recently been too cold," the Climate Prediction Center's Michelle L'Heureux told USA TODAY. "The observed sea-surface ...

And they're not sure why. "It's clear that the model predictions have recently been too cold," the Climate Prediction Center's Michelle L'Heureux told USA TODAY. "The observed sea-surface ...

And they're not sure why. "It's clear that the model predictions have recently been too cold," the Climate Prediction Center's Michelle L'Heureux told USA TODAY. "The observed sea-surface temperature ...