Coastal Conditions

ENSO Alert System Status: (updated 7/9/2015)

The Climate Prediction Center defines El Niño conditions as existing when a one-month positive sea surface temperature anomaly of 0.5C or greater is observed in the Niño-3.4 region of the equatorial Pacific Ocean, an expectation that the 3-month Oceanic Niño Index (ONI) threshold will be met (see graphs below), and
an atmospheric response typically associated with El Niño is observed over the equatorial Pacific Ocean.

Additional Information

El Niño/Southern Oscillation (ENSO) DIAGNOSTIC Discussion

El Niño/ENSO: Recent Evolution, Current Status and Predictions

Southern California Coastal Ocean Observing System El Niño page

International Research Institute ENSO Forecast

NOAA PSD El Niño/Southern Oscillation (ENSO)

US West Coast Ocean Conditions

Select a map or time series below:

The NOAA 1/4° daily Optimum Interpolation Sea Surface Temperature data (https://www.ncdc.noaa.gov/oisst).

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