Conditions are currently warming up in the Pacific, and the NOAA Climate Prediction Center expects a greater than 90% chance that El Niño will continue through the winter and most likely into the spring. This image shows the July 13-19, 2015 sea surface temperature departure from the 1981-2010 average. In addition to the warmer than normal waters generated by the El Niño conditions, the Pacific Decadal Oscillation is also creating persistently higher than normal sea surface temperatures in the northeastern Pacific.
For the most recent analysis by the Climate Prediction Center, please click here.
Note: this post was modified from its original to eliminate any confusion between the impacts of the current El Niño conditions and those of the 1997-1998 event.