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Dec 5/6th major coastal/ west Atlantic cyclogenesis ...?


Typhoon Tip
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  On 12/4/2020 at 9:16 PM, Kitzbuhel Craver said:

Don’t mean to be redundant but, quite warm out there at the moment... We need to rip a chunk out of the stratosphere for this to work out like some think.

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Yeah it’s going to take crazy dynamics....which the models show admittedly, but I always get a little nervous on similar setups where you are “waiting” for the cold. 

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  On 12/4/2020 at 9:16 PM, ORH_wxman said:

Yeah Reggie tickled east but it’s still a furnace at the surface. Not sure what it’s doing there. 

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I know it’s the Reggie but still may be a little red flag at half mast there.  Too many times I have seen a meso model or the GFS torch the surface or mid levels and get dismissed by weenies and then watch it happen. 

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I think 2" could be well underdone. All models have them getting between 1.25-1.50" liquid when it potentially flips to snow. Valley could be warmer but GFS is the only one keeping them above mid-30's at this point. And if they band then evap cooling will do the rest. Idk I see bust potential there. I think 3-6" is more realistic imo. Just curious to see what others think.

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  On 12/4/2020 at 9:28 PM, It's Always Sunny said:

Anyone else think NWS is underdoing BDL? 

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Much to my dismay, they were pretty accurate about their snow maps out here last winter. 
i’m at the northern end of the valley so only 2-4” would not surprise me at all.  I mean, it’s 44° here right now so not exactly screaming snow. 

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  On 12/4/2020 at 9:20 PM, TauntonBlizzard2013 said:

Ticking this easy and slowing it down a hair near the cape would do wonders here 

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All while maintaining dynamics...

We were able to thread that needle on some guidance early Thursday. These details still in flux. At the moment I think 2-5" is definitely doable Boston metrowest to 128, coating to 3" southeast.

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  On 12/4/2020 at 9:32 PM, It's Always Sunny said:

Ok cool glad we're on the same page. 4-8" could definitely be a possibility too no doubt.

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if I adjust anything I would probably do the 3-6'' to 4-8'' and the 6-10'' to 8-12'' but that could be pushing a bit. Just a matter of how quickly the flip can happen. If this thing gets it act together even 2-3 hours faster a large part of CT gets crushed.

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  On 12/4/2020 at 9:34 PM, weatherwiz said:

if I adjust anything I would probably do the 3-6'' to 4-8'' and the 6-10'' to 8-12'' but that could be pushing a bit. Just a matter of how quickly the flip can happen. If this thing gets it act together even 2-3 hours faster a large part of CT gets crushed.

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Nice map. I wouldn’t change a thing.

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  On 12/4/2020 at 9:34 PM, weatherwiz said:

if I adjust anything I would probably do the 3-6'' to 4-8'' and the 6-10'' to 8-12'' but that could be pushing a bit. Just a matter of how quickly the flip can happen. If this thing gets it act together even 2-3 hours faster a large part of CT gets crushed.

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I think you are good; you could move the 6-12 to the RI border, it’s not all flat land along I 395

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  On 12/4/2020 at 9:33 PM, HIPPYVALLEY said:

Much to my dismay, they were pretty accurate about their snow maps out here last winter. 
i’m at the northern end of the valley so only 2-4” would not surprise me at all.  I mean, it’s 44° here right now so not exactly screaming snow. 

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2-4" wouldn't surprise me either I just think 2" is on the low end so to speak. 18Z GFS coming in will be interesting if it holds. NAM continues it.

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