El Niño Outlooks

El Niño Outlook for May 2019

The Pacific remains in official El Niño conditions, with the warmest anomalies remaining in the central rather than the eastern Pacific. Atmospheric confirmation signals in trade winds are still weak, and warm water at depth in the central Pacific has moderated significantly in the last month as upwelling has increased.


El Niño Outlook for April 2019

 The equatorial Pacific remains in officially declared El Niño conditions, with the warmest anomalies relative to normal in the central rather than the eastern Pacific, as has been the case since last fall. Atmospheric confirmation signals in trade winds and global circulation patterns are present but weak. marking an El Niño event. Given significant warmth with depth in the Pacific, continuation of weak El Niño is most likely over the next several months.


El Niño Outlook for March 2019

After six months of limbo, the equatorial Pacific has belatedly tipped past +0.5C threshold, with atmospheric confirmation signals, marking an El Niño event. This event remains a weak +ENSO based in the central Pacific. No major further warming and a continuation of weak El Niño is the most likely trajectory over the next two months.


El Niño Outlook for February 2019

An official El Niño declaration remains unlikely in the short term, and our model has changed little from a forecast of continued neutral-positive conditions into the spring since January.


El Niño Outlook for January 2019

The warm SST anomalies in the equatorial Pacific have changed little overall since early October, and remain near or just above the +0.5C threshold marking an El Niño event. Our model has moved lower with the maximum strength of the El Niño and weakens SST anomalies toward warm-neutral in the next 1-2 months.


El Niño Outlook for December 2018

The equatorial Pacific remains in El Niño territory, a warmth continuing to be concentrated in the Central Pacific region. There has been a slow warming over the past several weeks, and Pacific warmth will likely peak over the next few months. The ocean and atmosphere system has been slow to lock into a classic +ENSO pattern, and our model has nudged lower with the maximum strength of the El Niño, which is now predicted to fade in the spring.


El Niño Outlook for November 2018

With the ocean and atmosphere system now locking into a more coupled +ENSO pattern in October, our ENSO Whisperer model has nudged higher with the maximum strength of the event and longer with the duration of El Niño, which is now predicted to last into the spring while attenuating slightly.


El Niño Outlook for September 2018

The equatorial Pacific remains in a neutral-positive state. While atmospheric measures of ENSO state have shifted slowly towards Niño-like teleconnections, SST anomalies themselves have changed little over the past 6 weeks. This favors slow development of a Central Pacific +ENSO event over the next 2-3 months, per our ENSO Whisperer model.


El Niño Outlook for August 2018

The equatorial Pacific remains in a neutral-positive state. While atmospheric measures of ENSO state are slowly but steadily shifting towards Niño-like teleconnections, SST anomalies themselves cooled slightly over the past 6 weeks. This favors the slower development of a Central Pacific +ENSO event this fall.


El Niño Outlook for July 2018

The equatorial Pacific remains in a neutral state at present. However, atmospheric measures of ENSO state are beginning to tilt heavily towards Niño-like patterns. This trend is likely to intensify over the next six weeks as the Pacific flirts with weak El Niño territory in August.