ENSO blogger Tony Barnston explains why climate forecasters can't get by with just a single indicator for predicting El Niño and La Niña.
The tropical Pacific Ocean sloshes around like water in your bathtub. These waves are as important as the vortex of water that spirals down the drain.
Blogger Tom Di Liberto explains the math behind some of the tests that seasonal forecasters use to check forecast skill, and then shows how skillful the past decade's winter forecasts have been.
Sea surface temperatures were chugging along in late fall of 2014. What's going on now?