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Global Sea Surface Temperature Standstill Continues

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Bob Tisdale – Climate Observations

Global sea surface temperatures are at about +0.15 deg C for the week centered on June 12th, compared to the base years of 1971-2000. Sure does look as though global sea surface temperature anomalies are going to need another very strong El Niño event to get them to warm. Other than the rises and falls in response to El Niño and La Niña events, it doesn’t look as though global sea surface temperatures have wandered very far from an anomaly of +0.2 deg C over the past 12-plus years.

Weekly Global

The sea surface temperature anomalies of the NINO3.4 region in the equatorial Pacific (5S-5N, 170W-120W) are a commonly used metric for the frequency, strength and duration of El Niño and La Niña events. For the week centered on Wednesday June 12, 2013, they’re at about -0.04 deg C, basically zero. That is, there aren’t El Niño or La Niña conditions.

Weekly NINO3.4

Weekly NINO3.4

But sea surface temperatures in the eastern equatorial Pacific are quite cool. The NINO1+2 region is bordered by the coordinates of 10S-0, 90W-80W. The sea surface temperature anomalies of the NINO1+2 region cooled below -2.0 deg C a few weeks ago. As of last week, they had rebounded to approximately -1.2 deg C.

Weekly NINO1+2

Weekly NINO1+2

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