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Sorry ...

models pos‘ed their way up to this “-NAO” which I put in quotes because this?

image.thumb.gif.5dd62ec743db68a3a72430d2f2958e89.gif
 

is not a very convincingly useful block ... 

Its S displaced so far it’s really more like a a ‘north based subtropical ridge.’

I do however believe if the 1/4 system was deeper mechanically rooted it would have fed into that and perhaps modulate more of D. Str vicinity ... Short of that/either way that’s not a good look 

 

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Weekend Storm Potential

Following Monday's brief episode of inclement weather, medium range ensemble guidance is signaling a storm system to pass out to sea over the weekend, underneath the developing NAO block. However, it does seem close enough to warrant vigilance over the course of the week.
It appears as though the day to watch is primarily Saturday.
 
ECMWF Ensemble Mean:
EPS.png

 

 
 
 
GFS Ensemble Mean:
 
GEFS.png
 
Canadian Ensemble Mean:
 
GEPS.png
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  On 1/3/2021 at 7:16 PM, Typhoon Tip said:

Sorry ...

models pos‘ed their way up to this “-NAO” which I put in quotes because this?

image.thumb.gif.5dd62ec743db68a3a72430d2f2958e89.gif
 

is not a very convincingly useful block ... 

Its S displaced so far it’s really more like a a ‘north based subtropical ridge.’

I do however believe if the 1/4 system was deeper mechanically rooted it would have fed into that and perhaps modulate more of D. Str vicinity ... Short of that/either way that’s not a good look 

 

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Why? There seems to be sufficient wave spacing to allow some downstream ridging. It seems workeable to me, a non met...lol.

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  On 1/3/2021 at 8:26 PM, MJO812 said:

Top 3  CIPS analogs for the Jan 8th storm:
 
1. December 2009
2. January 2016
3. Boxing Day 2010

 

Very interesting 

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Illustrates the risk that y'all in the mid atlantic might be slightly better situated for this one

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  On 1/3/2021 at 9:01 PM, Henry's Weather said:

Pretty clear-cut southern stream SECS/MECS on analogs, which makes sense given the slightly southernly location of that block, as tip mentioned.

Screenshot_20210103-160033_Chrome.jpg

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Yea, not in love with that look. Majority of the region can score a major event, but you can take the SNE upper tier off of the table.

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  On 1/3/2021 at 8:55 PM, Henry's Weather said:

Why? There seems to be sufficient wave spacing to allow some downstream ridging. It seems workeable to me, a non met

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I get what he means by the block slipping south a bit. It's not an ideal look for us, but I still see plenty of blocking in the Davis Strait. Strikes me as the type of storm I'd complain about, while posters from CT ostracize me for bitching.

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  On 1/3/2021 at 9:18 PM, RUNNAWAYICEBERG said:

Contingent upon how much help we get from the northern stream. I think there could be a minor amount of interaction which would lead to a more mid atl and south coast hit. Obv I’m hedging at d6.  

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Yea, not my type of set up.

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  On 1/3/2021 at 8:55 PM, Henry's Weather said:

Why? There seems to be sufficient wave spacing to allow some downstream ridging. It seems workeable to me, a non met...lol.

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Yeah I confused you by using the expression ‘useful to us’ ... really the impetus there was just the NAO handling alone.  

...but if the blocking were batter positioned it may parlay your next system there.  Which could be okay anyway ... just sayn’

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