Quicky October 2016 ENSO Update

Watts Up With That?

Guest Post by Bob Tisdale

Weekly NINO3.4 Sea Surface Temperature Anomalies from NOAA Are Approaching the Threshold of a Moderately Strong La Niña.  Australia’s Southern Oscillation Index from BOM is in La Niña values.  And NOAA’s Multivariate ENSO Index is Still in ENSO Neutral Territory.

NOAA’S WEEKLY NINO3.4 REGION SEA SURFACE TEMPERATURE ANOMALIES  

NOAA’s weekly sea surface temperature anomalies for the NINO3.4 regions (based on the original Reynolds OI.v2 data) are furnished on Mondays. The most recent update for the week centered on October 6, 2016 shows the sea surface temperature anomalies of the NINO3.4 region (5S-5N, 170W-1250W), which NOAA uses to define a La Niña and its strength, is at -0.9 deg C, well below the -0.5 deg C threshold of La Niña conditions and approaching the -1.0 deg C threshold of a moderately strong La Nina.

weekly-nino3-4-ssta

Figure 1

The weekly NINO region sea surface temperature anomaly data…

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