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Jester January


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6 minutes ago, ORH_wxman said:

Why would it make it more common for ridge linkage? You’d need the heights in the mid-latitude band to be rising faster than the heights in the arctic to make that true….otherwise you just get the same exact pattern as 1996 except everything is just up 10 or 20dm if the heights are rising together in similar magnitude. We’ve had excellent -PNA/-NAO patterns relatively recently (portions of 2016-17 come to mind and even the massive Mar 2018 snowgasm was -PNA/-NAO) 

 

6 minutes ago, dendrite said:

Not sure what you’re getting at here. Height anomalies are higher, but that doesn’t necessarily mean more ridging. Just think of it as having December H5 climo during January. 

This is true. But I did see some pretty convincing composites from Bluewave. I guess we will have to see how much this secondary nadir of the Pac cold phase has biased things.

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4 minutes ago, 40/70 Benchmark said:

 

This is true. But I did see some pretty convincing composites from Bluewave. I guess we will have to see how much this secondary nadir of the Pac cold phase has biased things.

It’s an empirical fact we’ve seen more of the huge SE ridge linking with a -NAO the pst few years but just because that part is true, it doesn’t mean it’s true going forward or that a warmer climate caused it. 
 

Im always cautious in attributing largely stochastic features to a particular variable. 
 

So much of our snow blitzes in the 2000s/2010s came from that -NAO/-PNA couplet despite heights being noticeably higher than the 1960s when we saw a bunch of similar snow blitzes on that couplet. 

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11 minutes ago, weatherwiz said:

This is one of the more impressive wind signals we've had in a while I think. The trees are bare so that limits damage potential but there will be some power outages and downed trees. 

60 is the general threshold for bigger damage with no leaves. NW winds don’t do as much damage as SSE gusts since trees are more accustomed to NW direction . But you’ll see a lot of white pines snapped if areas see 60+

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36 minutes ago, 40/70 Benchmark said:

I just said it isn't just two years. I've seen the composites. 

Ok I missed that but does a 15 year trend override 150 years of data?  What CC model would freeze California and warm New England?  I honestly don’t know and I’m sure CC is real and alarming but not sure the 15 year nao trend is related.  

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6 minutes ago, Damage In Tolland said:

60 is the general threshold for bigger damage with no leaves. NW winds don’t do as much damage as SSE gusts since trees are more accustomed to NW direction . But you’ll see a lot of white pines snapped if areas see 60+

made a thread! 

Who doesn't want to begin the year with damage

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33 minutes ago, weathafella said:

Ok I missed that but does a 15 year trend override 150 years of data?  What CC model would freeze California and warm New England?  I honestly don’t know and I’m sure CC is real and alarming but not sure the 15 year nao trend is related.  

No, I'm not saying CC caused the record RNA.

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