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December 2022


dmillz25
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24 minutes ago, bluewave said:

AO getting closer to -4 which would increase the chances of more blocking JFM and a possible SSW.

 

https://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/norm.daily.ao.nao.pna.aao.gdas.120days.csv

 

09Dec2022-3.6473

@EasternLI about to get arrested for aggravated assault on the SPV. 
 

I’ll bail you out brother. 

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1 minute ago, bluewave said:

The only 3 Decembers with a lowest AO reading in the 4s were 2000, 1995, and 1962. Several years like 2010, 2009, and 1976 were in the -5s. There were numerous years in the -3s. So any December dipping below -3 had usually had follow up JFM blocking or a SSW.


https://ftp.cpc.ncep.noaa.gov/cwlinks/norm.daily.ao.index.b500101.current.ascii

 

2000 12 29 -4.688
1995 12 19 -4.353
1962 12 31 -4.159

2000/2001 was a real good winter, kicked off the historic new century snowfalls.

 

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5 minutes ago, bluewave said:

The only 3 Decembers with a lowest AO reading in the 4s were 2000, 1995, and 1962. Several years like 2010, 2009, and 1976 were in the -5s. There were numerous years in the -3s. So any December dipping below -3 had usually had follow up JFM blocking or a SSW.


https://ftp.cpc.ncep.noaa.gov/cwlinks/norm.daily.ao.index.b500101.current.ascii

 

2000 12 29 -4.688
1995 12 19 -4.353
1962 12 31 -4.159

Copied from the MA forum. We have a shot at touching -4!!

image.png.a9c02363eca3eec7a9c0d57d69cc50ec.png

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44 minutes ago, bluewave said:

The only 3 Decembers with a lowest AO reading in the 4s were 2000, 1995, and 1962. Several years like 2010, 2009, and 1976 were in the -5s. There were numerous years in the -3s. So any December dipping below -3 had usually had follow up JFM blocking or a SSW.


https://ftp.cpc.ncep.noaa.gov/cwlinks/norm.daily.ao.index.b500101.current.ascii

 

2000 12 29 -4.688
1995 12 19 -4.353
1962 12 31 -4.159

All snowy Decembers? 

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