National Weather Service United States Department of Commerce
El Nino - Southern Oscillation Information Page         








ENSO-neutral conditions are favored to continue through at least the Northern Hemisphere spring 2017, with increasing—but uncertain—chances for El Niño development into the fall.



Tropical Pacific Sea Surface Temperatures Tropical Pacific Sea Surface Temperature Anomalies
temp pcpn
Tropical Pacific sea surface temperatures (left image) and associated anomalies (right image). Click images to enlarge.  Images courtesy of the Climate Prediction Center.


Quick Facts

  • ENSO impacts to sensible weather are typically most pronounced from late fall through mid spring.