>Mid-September 2009 SST Anomaly Update

>A GIF animation of the OI.v2 SST anomaly maps for the Weeks Centered On August 19 and September 16, 2009 shows that the elevated SST anomalies in the mid and high latitudes of the Northern Hemisphere have reduced in magnitude. The tropical Pacific SST anomalies are still elevated, but there are no apparent indications of a strengthening El Nino. The tropical Atlantic is still not showing any areas of exceptionally warm SST anomalies.
SST Anomaly Map

Global SST anomalies are still elevated, but they have dropped 0.08 deg C in the last 3 weeks.
Global SST Anomalies

NINO3.4 SST anomalies for the week centered on September 16, 2009 are still well into El Nino territory, but they have been cycling near the same value for a few months.
NINO3.4 SST Anomalies

And the SST anomalies in both the Southern and Northern Hemispheres are decreasing.
Southern Hemisphere SST Anomalies
Northern Hemisphere SST Anomalies

OI.v2 SST anomaly data is available through the NOAA NOMADS system:

About Bob Tisdale

Research interest: the long-term aftereffects of El Niño and La Nina events on global sea surface temperature and ocean heat content. Author of the ebook Who Turned on the Heat? and regular contributor at WattsUpWithThat.
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4 Responses to >Mid-September 2009 SST Anomaly Update

  1. John says:

    >I notice a little cold build up off the coast of South America.Do you think that will move into the tropical pacific and further disrupt any potential buildup of El Nino?

  2. Bob Tisdale says:

    >John: It's not going to help it; that's for sure. We'll just have to keep an eye on the subsurface anomalies to see if they weaken more.http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso_update/wkxzteq.shtml

  3. Andrew says:

    >Bob-It may be time to remind people of "there is nothing new about the El Nino Modoki"http://tinyurl.com/lggzxo

  4. Bob Tisdale says:

    >Andrew: Thanks, I wondered why my El Nino Modoki posts were getting so many hits. But if memory serves me well, this El Nino started as a traditional El Nino, just not very strong. I'll keep an eye out for blogs that are repeating the nonsense about them being a new phenomenon.

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