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Oct 31- Nov 2nd Storm Disco


Damage In Tolland

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just a general question ... what is the mechanism / reasoning for this westward trend? 

 

 

There's a multidude of variables, but often the latent heat release in extremely deep systems is the primary mechanism for pumping up downstream heights..and its a variable the models handle pretty poorly.

 

But there could be other variables like the vorticity being stronger than models thought or a jet streak being more impressive, etc, etc.

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It's such an anomalous ULL, like -7SD. Pretty much unprecedented in terms of how cold it is. You can get some weird stuff when that moves over the gulfstream and feedbacks like Will said  from latent heat, jet streaks enhanced etc can happen. Also, I think the s/w in NY also is allowing this to come W.

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It's such an anomalous ULL, like -7SD. Pretty much unprecedented in terms of how cold it is. You can get some weird stuff when that moves over the gulfstream and feedbacks like Will said from latent heat, jet streaks enhanced etc can happen. Also, I think the s/w in NY also is allowing this to come W.

You and Will said it, latent heat is something modeling handles poorly.

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There's a multidude of variables, but often the latent heat release in extremely deep systems is the primary mechanism for pumping up downstream heights..and its a variable the models handle pretty poorly.

 

But there could be other variables like the vorticity being stronger than models thought or a jet streak being more impressive, etc, etc.

diabatic heating ftw 

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I need to see the GFS hold and then I'm onboard for some snow, RGEM caving was pretty much what I needed to see to be confident in some snow here in Boston. Need to watch closely over the next few hours, wouldn't be totally surprised if I'm issuing an update overnight for some snow in my eastern zones(I forecast for all of CT). 

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i mean, that RGEM run is like a game-changer. It's easy to excuse a big NAM run...even this close in. But the RGEM is rarely this wrong 12 hours out...hardly ever.

 

Areas near BOS could het advisory snows in less than 12 hours and nobody has a clue. Belichick might look like a genius not even a week after his silly comments. :lol:

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i mean, that RGEM run is like a game-changer. It's easy to excuse a big NAM run...even this close in. But the RGEM is rarely this wrong 12 hours out...hardly ever.

Areas near BOS could het advisory snows in less than 12 hours and nobody has a clue. Belichick might look like a genius not even a week after his silly comments. :lol:

In Bill we trust

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