Seasonal Climate Outlook

The tropical Pacific is currently in an ENSO (El Niño – Southern Oscillation) neutral state (neither El Niño nor La Niña).

The tropical Pacific continues to exhibit mainly ENSO-neutral conditions.

The tropical Pacific exhibits mainly neutral ENSO (El Niño-Southern Oscillation) conditions. Sea surface temperatures (SSTs) in the central Equatorial Pacific Ocean are marginally below average and do not exceed the threshold used by NOAA’s Climate Prediction Center to define La Niña events.

The tropical Pacific exhibits mixed ENSO (El Niño-Southern Oscillation) signals, with some indicating La Niña status and others indicating neutral conditions.

ENSO (El Niño – Southern Oscillation) neutral conditions are still present in the tropical Pacific Ocean as a whole, although some indicators are currently in the weak La Niña category.

ENSO (El Niño – Southern Oscillation) neutral conditions continued in the tropical Pacific Ocean during August: sea surface temperatures along the eastern equatorial Pacific are near or slightly below normal, and the atmospheric conditions over the tropical Pacific are generally consistent with an ENSO-neutral state.

ENSO (El Niño – Southern Oscillation) neutral conditions are currently present in the tropical Pacific.

The latest remnants of the strong El Niño which peaked late in 2015 have now vanished in the tropical Pacific Ocean, and the Pacific is ENSO-neutral.

Ocean-atmosphere conditions in the tropical Pacific have now returned to near normal after a rapid demise of the El Niño event that peaked late 2015.

El Niño conditions in the tropical Pacific weakened further during April 2016, with sea surface temperatures now typically only about +1oC warmer than normal.

Strong El Niño conditions continued to dominate the tropical Pacific during December 2015.

Strong El Niño conditions continue in the Tropical Pacific.

Atmospheric and oceanic anomalies in the equatorial Pacific reflect strong El Niño conditions.

Strong El Niño conditions were established across the Equatorial Pacific during September 2015.

Strong El Niño conditions are present in the tropical Pacific ocean.

El Niño conditions continued to strengthen during July 2015.

An El Niño event is under way in the tropical Pacific. Sea surface temperatures have continued to warm across many areas of the eastern and central Tropical Pacific.

An El Niño event is now under way in the tropical Pacific.

Warming of the sea surface across the equatorial Pacific Ocean continued in April 2015, building upon the warmer than normal waters observed in previous months.