Will Weakening El Nino Give Way to La Nina?

Unless you’ve been hibernating with Punxsutawney Phil this winter, chances are that you know about El Niño, a periodic warming in surface ocean temperatures across the central and east-central equatorial Pacific Ocean, which has been altering weather across the globe. The effects have ranged from wildfire-causing droughts in Indonesia to ocean storms off the coast of Chile, with waves massive enough to rush up onto land and flip an SUV.

An El Niño’s effect on weather can be complex, and in some cases didn’t behave as predicted. In drought-ravaged California, for example, meteorologists thought the ocean temperature phenomenon probably would bring above-average rain to the southern part of the state in January, with a lesser chance of precipitation in the north.