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Guest blogger Amy Butler explains how changes in the stratospheric polar vortex can influence the "usual" effects of El Niño on the climate in the Northern Hemisphere.
This month, we’re in both an El Niño Advisory and a La Niña Watch.
The 2015-2016 El Niño will go down as one of the strongest on record, and also, thanks to El Niño Rapid Response Campaign, one of the best observed.
El Niño is weakening. What impacts did it have on winter weather? And what's this about La Niña?
Where are my El Niño impacts?!
How strong is our strong El Niño? And what could El Niño have to do with the Denver Broncos? Blogger Emily Becker answers questions about ENSO events, current and past.
How likely is a La Niña the year after an El Niño, and in particular after a strong one like this year's? IRI's Tony Barnston analyzes the history of ENSO behavior since 1950 for a possible answer.
The tropical Pacific is an exciting place these days. What’s been going on recently?
Was El Niño to blame for the above-average temperatures during November and December 2015? As always, the answer is not that simple.
Just how powerful is the current El Niño? There’s more to the story than the very warm equatorial Pacific.