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January 2 - 3 Winter Storm Potential


NEG NAO

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Smells like a good ole' fashion dryslot on the Euro for NYC.

 

850 low is on top of NYC at hr 108, over southeast Mass at 114. Surface low actually gets down to 968 over Cape Cod by 114, 979 mb south of MTP at 108.

Plotted -12 to -18 RH on the Euro, dryslot is over the eastern Jersey shore and very close to northeastern NJ, NYC western LI at hr 108. RH in the 40-50% range.

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This seems like a very 2/8 like event where Boston looks like the slam dunk spot and it becomes how far SW of there does it extend. Boston is almost guaranteed a good or great storm from this unless the setup completely falls apart.

Million dollar question is if a sharp cutoff hits again, at least for us further west!

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Far from slam funk for BOS...if SLP tanks that much i could see it head nnw

This seems like a very 2/8 like event where Boston looks like the slam dunk spot and it becomes how far SW of there does it extend. Boston is almost guaranteed a good or great storm from this unless the setup completely falls apart.

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850 low is on top of NYC at hr 108, over southeast Mass at 114. Surface low actually gets down to 968 over Cape Cod by 114, 979 mb south of MTP at 108.

It's going to be a nailbiter for us to the end. I would really want the 850 low to be southeast of me though to rule out mixing, and the 700 low to rule out the dryslot. I do think it'll be a doozy for someone where it all congeals.

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It's going to be a nailbiter for us to the end. I would really want the 850 low to be southeast of me though to rule out mixing, and the 700 low to rule out the dryslot. I do think it'll be a doozy for someone where it all congeals.

 

If the system really is as deep as the Euro and the surface low track is offshore there won't be much of anything other than rain quickly to heavy snow...the models may show sleet or iffy surface temps at this range but with that sort of setup you go over to snow very fast most of the time.

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Low resolution SV maps: 10-12" for NYC and NJ north of TTN. 12-15" for North NJ, SE NY CT etc into SNE. Amounts get lower east of NYC on LI and father S in NJ. Seems like a coastal front signal is pretty strong. 25+" amounts in a fairly large band in Central New England.

With TTN just changing over to snow at 108, that map is way overdone.  By 2 to 3 times.  Wonder if its seeing it as just about snow at 108 and assuming everything in the prior 6 hours is all snow.

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We are finally seeing a track consensus . The GFS , Euro and the NAM all NO longer take the primary to Pitt , but thru the lower

Ohio Valley then off the Delmarva  and turn it NE .

The differences are  now are aloft .  It maybe a case where the NAM and GFS need a day to get to the Euro intensity .

But  they have all bought the southern route overnite .

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I don't even think 18" is impossible from this but 10 or 12" certainly seems more attainable now.

If this thing digs and bombs out more bringing more moisture with it as well from atlantic and gulf, it will turn into a snow bomb. Too early in the game though but this storm trended the right way overnight
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If this thing digs and bombs out more bringing more moisture with it as well from atlantic and gulf, it will turn into a snow bomb. Too early in the game though but this storm trended the right way overnight

Yep. Unfortunately could also be over amplifying the trough or phase late and miss us entirely. The nature of the beast.
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