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2014 ENSO Mega Thread


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Strange they would release that this week, it almost seems that the El Nino is just firing up now?  The CFSv2 shows a drop in the 3.4 index progged for next month, but the realities on the ocean basin and subsurface don't seem to concur.  Especially with the SOI index and the PDO continuing to stay moderately positive.

NOAA is always lagging behind the latest trends...every governmental entity is the same. Very sllooooooooowwww....

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NOAA is always lagging behind the latest trends...every governmental entity is the same. Very sllooooooooowwww....

 

 Lol, often true. However, believe it or not, they just fixed the Oct. monthly ocean heat content and changed it to to ~+0.50 from near zero:

 

http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/ocean/index/heat_content_index.txt

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 Lol, often true. However, believe it or not, they just fixed the Oct. monthly ocean heat content and changed it to to ~+0.50 from near zero:

 

http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/ocean/index/heat_content_index.txt

 

 

That makes more sense and is much more in line with what we would expect for a weak El Nino.

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Saying the nino is slipping away is totally absurd.

 

 

Dep_Sec_EQ_5d.gif

 

 

With such a strong subsurface Kelvin wave like above, do any of y'all think we make a run for borderline weak/moderate?  I'd imagine once that starts surfacing, we could see a decent increase in Nino region temps, which would put it above the current ensemble forecasts of just a very weak Nino.  

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Quite some warm water surfacing in the Nino 3, 3.4, and 4 regions and the Tropical Tidbits graph reflects that well.  I think the update on Monday will be around +0.7 or 0.8 (being a little more generous).  I think this Nino is over performing what some of the ensemble guidance is showing and seems to be getting its act together quickly.  

 

Dep_Sec_EQ_5d.gif

 

nino34.png

 

nino4.png

 

color_newdisp_anomaly_global_lat_lon_oph

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Seeing a nice increase in temps across most of the Nino regions.  I think we're in the strengthening phases of a Nino.  We're only a hop, skip, and a jump away from medium Nino threshold.  

 

Niño 4 0.9ºC
Niño 3.4 0.8ºC
Niño 3 0.9ºC
Niño 1+2 0.5ºC
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Still have no idea why the CPC lowered the odds of El Nino. The Nino looks much better than it ever has. 

 

wkteq_xz.gif

 

Another Kelvin Wave is clearly showing up. It also appears that this is the new background state, as we no longer have negative anomalies during the "upwelling" cycle of the wave. 

 

wkd20eq2_anm.gif

 

OHC is also shooting back up and is approaching mod-Nino territory. Also, the SOI has been solidly negative for a long time now, though the past two daily values have been positive. 

 

heat-last-year.gif

 

 

 

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Still have no idea why the CPC lowered the odds of El Nino. The Nino looks much better than it ever has. 

 

wkteq_xz.gif

 

Another Kelvin Wave is clearly showing up. It also appears that this is the new background state, as we no longer have negative anomalies during the "upwelling" cycle of the wave. 

 

wkd20eq2_anm.gif

 

OHC is also shooting back up and is approaching mod-Nino territory. Also, the SOI has been solidly negative for a long time now, though the past two daily values have been positive. 

 

heat-last-year.gif

"Similar to last month, most models predict El Niño to develop during October-December 2014 and to continue into early 2015 (Fig. 6). However, the ongoing lack of clear atmosphere-ocean coupling and the latest NCEP CFSv2 model forecast (Fig. 7) have reduced confidence that El Niño will fully materialize (at least five overlapping consecutive 3-month values of the Niño-3.4 index at or greater than 0.5°C)".

 

From their monthly discussion.  Don't know why the CFS should be trusted at all. 

 

http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso_advisory/ensodisc.pdf

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"Similar to last month, most models predict El Niño to develop during October-December 2014 and to continue into early 2015 (Fig. 6). However, the ongoing lack of clear atmosphere-ocean coupling and the latest NCEP CFSv2 model forecast (Fig. 7) have reduced confidence that El Niño will fully materialize (at least five overlapping consecutive 3-month values of the Niño-3.4 index at or greater than 0.5°C)".

 

From their monthly discussion.  Don't know why the CFS should be trusted at all. 

 

http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso_advisory/ensodisc.pdf

 

 

Right, that's what's most mind-boggling. As bluewave illustrated very well, the atmosphere HAS clearly responded to El Nino conditions. 

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Right, that's what's most mind-boggling. As bluewave illustrated very well, the atmosphere HAS clearly responded to El Nino conditions. 

 

Just a WAG, but with the late start and it being supposedly "weak" that once the usual waning of mid to late winter begins, it won't take much to bump it from el nino to la nada.  That five consecutive tri-monthly goal must look unreachable.   

 

Right now, it looks pretty coherent and it's not unprecedented for a late start, a la 52-53 or 58-59.  Though those had Ninos the prior winter. 

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Per tropicaltidbits, every Nino region is above +1.0C (moderate territory) in their daily values.

 

http://www.tropicaltidbits.com/analysis/ocean.html

 

 Also, the TAO map, which shows the average of the preceding five days. is the warmest it has been to date by a good margin. Taken literally, it is showing 3.4 near or a little warmer than +1.1 for 11/14-18 averaged. It wouldn't surprise me if the weekly released this Monday is at +1.0 and maybe even as warm as +1.1. Keep in mind, however, that the ONI (trimonthlies) is based on what has recently been a cooler dataset with regard to anomalies (~0.2 cooler recently though the discrepancy was narrowing) and also it tends to largely ignore shortlived spikes since it is a three month average. Regardless, any fears that we wouldn't actually get a Nino should be just about over now I'd think.

post-882-0-47252000-1416447530_thumb.gif

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Australia's Weather Agency has gone from EL Nino watch to alert and at least 70% chance of El Nino occurring. Their numbers show more warming over past 2 weeks:

 

Index Previous Current Temperature change(2 weeks)

NINO3  +0.9 +1.0 0.1 °C warmer
NINO3.4  +0.7 +0.9 0.2 °C warmer
NINO4  +0.9 +1.1 0.2 °C warmer

 

http://www.bom.gov.au/climate/enso/archive/ensowrap_20141118.pdf

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