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December 14/15 winter storm threat


Typhoon Tip

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Is it me or is that high pressure not even that ideally situated on the 0z nam seems like instead of centered to the N or even anchored NNE of New England, it is spread out to the northeast and east of New England , and sort of banana'd (if u will) to the west. Seems orientation shifts se enough to allow warmer e winds along coast, thou it gives impression at some latitude that east flow may not warm things above freezing for a while

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Is it me or is that high pressure not even that ideally situated on the 0z nam seems like instead of centered to the N or even anchored NNE of New England, it is spread out to the northeast and east of New England , and sort of banana'd (if u will) to the west. Seems orientation shifts se enough to allow warmer e winds along coast

 

The issues started right away, check the differences between the old run and new run even inside of 24 hours.  It's either off it's rocker or we're about the see the Tippy Supreme data ingest hangover.

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Yes it does look like some of the more amped members which is about the only conclusion that can be drawn at this point. Seems like this early winter they've gone left or way right, but not just right.

Cold cut cold or meat grinder...take ur pick...or we "thread the needle" and get it intact enuf and still cold enuf

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You said it may tick NW .......lol, That was a leap, But its the 84 hr Nam

The surface low track isn't much different than 18z on the NAM.  The warmth comes from the low center over the Lakes.  This run there is more PVA in the eastern lakes, and therefore more surface deepening in that region and a stronger low level SE flow.  The coastal low actually looks a touch stronger this run, but it is overwhelmed by the primary.  This could and probably will change.  If the northern stream s/w digs further south or contrarily if it stays further north and less involved, the thermal gradient over the northeast will be much different on Sunday.

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I think people focus too much on the surface features.  The upper levels drive the placement and strength of highs and lows, and therefore control wind direction and temperature advection... with a comparatively minor influence from terrain features and temperature gradients.

 

Correct - 850mb lows over Michigan excite me. 

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shouldn't you have the background and skill set to depict whether or not an 850mb low can barrel into MI given the data/features at play?

 

This one will... that's not really the issue. I'd like to see it redevelop east of us but I don't think that will happen. 

 

May wind up as more of a front end thump to sleet, freezing rain, and rain south of the Pike. 

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This one will... that's not really the issue. I'd like to see it redevelop east of us but I don't think that will happen. 

 

May wind up as more of a front end thump to sleet, freezing rain, and rain south of the Pike. 

 

Your solution is very plausible but some don't like to except that could be a viable outcome

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