#WxGeekSpeak: La Niña

Every week, the blog introduces you to a technical term from the American Meteorology Society’s “Glossary of Meteorology”. Welcome to #WxGeekSpeak!

Odds favor southern Arizona being in a weak La Niña this Winter. The video above explains what that means in the Pacific & how this could influence our weather.

Full definition of La Niña: The most common of several names given to a significant decrease in sea surface temperature (“cold events”) in the central and eastern equatorial Pacific.

La Niña is the counterpart to the El Niño “warm event,” and its spatial and temporal evolution in the equatorial Pacific is, to a considerable extent, the mirror image of El Niño, although La Niña events tend to be somewhat less regular in their behavior and duration.


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