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Monday, September 21, 2009

Mid-September 2009 SST Anomaly Update

I’ve moved to WordPress.  This post can now be found at Mid-September 2009 SST Anomaly Update
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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.
http://i33.tinypic.com/21o7z42.gif
SST Anomaly Map

Global SST anomalies are still elevated, but they have dropped 0.08 deg C in the last 3 weeks.
http://i37.tinypic.com/122en2b.png
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.
http://i37.tinypic.com/142vrzn.png
NINO3.4 SST Anomalies

And the SST anomalies in both the Southern and Northern Hemispheres are decreasing.
http://i33.tinypic.com/akfl6q.png
Southern Hemisphere SST Anomalies
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http://i38.tinypic.com/epljwl.png
Northern Hemisphere SST Anomalies

SOURCE
OI.v2 SST anomaly data is available through the NOAA NOMADS system:
http://nomad3.ncep.noaa.gov/cgi-bin/pdisp_sst.sh?lite=

4 comments:

John said...

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?

Bob Tisdale said...

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

Andrew said...

Bob-It may be time to remind people of "there is nothing new about the El Nino Modoki"

http://tinyurl.com/lggzxo

Bob Tisdale said...

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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