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.
Where are my El Niño impacts?!
Was El Niño to blame for the above-average temperatures during November and December 2015? As always, the answer is not that simple.
“El Niño is Strong!” “No, it’s Moderate!” “But the [insert your favorite ENSO indicator here] is the largest it’s been since the El Niño of 1997-98!”
Why is it so difficult to make a good ENSO prediction during the Northern Hemisphere spring?
You're not the only one wondering if we will see El Niño grow or continue into this coming winter 2015. How useful are March winds and subsurface temperatures across the tropical Pacific Ocean in predicting winter El Niño or La Niña states?
The model predictions during 2014 were not that shabby. A major, strong El Niño was not well justified by the predictions.
A first look at how we evaluate seasonal forecasts. How well do our eyes do?
An El Niño means lots of rain for California, correct? Well, some of the time, but not always.
How El Niño is like different flavors of ice cream. Seriously.