A blog about monitoring and forecasting El Niño, La Niña, and their impacts.


The ENSO blog is written, edited, and moderated by Michelle L’Heureux (NOAA Climate Prediction Center), Emily Becker (contractor to CPC), Nat Johnson (NOAA Geophysical Fluid Dynamics Laboratory), and Tom DiLiberto and Rebecca Lindsey (contractors to NOAA Climate Program Office), with periodic guest contributors.

Ideas and explanations found in these posts should be attributed to the ENSO blog team, and not to NOAA (the agency) itself. These are blog posts, not official agency communications; if you quote from these posts or from the comments section, you should attribute the quoted material to the blogger or commenter, not to NOAA, CPC, or Climate.gov.

April 11, 2019

Weak El Nino continued into April. Our blogger discusses the "here & now" and the forecast for spring and summer.

March 28, 2019

How did the 2018-2019 Winter outlook do? Tom Di Liberto takes you through what happened in this week's ENSO blog. 

March 14, 2019

El Niño conditions continued into March. What do forecasters think is next?

February 28, 2019

Why did atmospheric El Niño conditions fail to develop this past fall?  Our blogger tries to unravel the mystery of the missing central Pacific rainfall. 

February 14, 2019

NOAA has issued an El Niño Advisory, reflecting the presence of El Niño conditions in the tropical Pacific.

December 12, 2018

The tropical Pacific Ocean is sending out signals, but the atmosphere has yet to respond. Our blogger gives you the scoop.

View of Guayaquil, Ecuador
November 20, 2018

What is the latest and greatest in ENSO science?  This blogger travels to Guayaquil, Ecuador to find out.  

November 8, 2018

The east-central equatorial Pacific is warmer than average, but El Niño hasn’t arrived quite yet. What’s the ENSO latest?

October 22, 2018

How might a developing El Niño influence conditions over the U.S. this winter?  The Climate Prediction Center’s Mike Halpert gives us the details as he discusses NOAA’s 2018-19 winter outlook.

October 11, 2018

We’re still in neutral, but El Niño conditions may be on the horizon. What’s happening in the tropical Pacific?