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January 2024


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2 minutes ago, Stormlover74 said:

This seems like a greater spread than usual for 5 days. Typically one model is on its own, with some agreement between the others

Need to get the second cutter out of the way to get some clarity 

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4 minutes ago, bluewave said:

Yeah, that plus retrograding blocks are one of the most difficult situations to figure out for the models. 

So agree.  Retrograding blocks are a big wildcard and difficult for LR/MR models to get a good handle on.  I think the possibilities for next Tuesday are pretty much wide open at this point.  Would not expect a hint of clarity until 12Z Saturday cycle - maybe even 00Z Sunday.

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7 minutes ago, Allsnow said:

Nice look on the euro for Tuesday. Just another possibility 

IMG_2921.png

Euro and GFS more or less agree now - just have to get the ensembles of both on board.....

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the 20th is seriously legit. you have every single synoptic piece here:

  • decaying WB -NAO
  • Arctic antecedent airmass
  • huge 50/50 ULL
  • transient PNA spike from the diving GoAk LP
  • amplifying vort upstream

this period has been showing up on ensembles and now OP runs are beginning to sniff it out. large storms often follow decaying WB -NAOs, so this is definitely a period of high interest

ecmwf-deterministic-namer-z500_anom-5622400.thumb.png.f3bc99bf96c198cf1f22d52ce7776ac6.png

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1 minute ago, bluewave said:

I can’t remember the last time we saw the models correct SE day 8 to 6. It’s usually been the other way around. Must be the difficulty with the retrograding block. We have had some big model shifts even into the short term with past retrograding block. So I wouldn’t be surprised if we continue to see shifts one way or the other in future runs.

 

3D516383-ACCD-405D-9FAF-5CA30E14E424.thumb.png.f73978b3620ae5bac74747422177d17b.png
04DF92D8-5D09-4AC3-A7C3-6C60E397A17D.thumb.png.48594701534eb18884161d415ff69a65.png

43BD1059-E100-48C2-856D-8A872806ED25.thumb.png.9c941c6e65bf95750532aba4dc2cb0dc.png

Haven’t had a pattern like this in a very long time…

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1 minute ago, bluewave said:

I wouldn’t mind it if this first system sheared out and left more room for one of the waves behind it to swing for the fences with the developing -NAO +PNA.

Can’t say I disagree, just hopeful we get something. If nyc doesn’t get at least a inch next week from that type of look I will call this hobby quits 

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3.41" - Pump ran and did its job.  Did not lose power so generator did not kick in to save the day.  Pump does not run frequently here.  Except for Ida rains it rarely ran in the 5 years prior.  Lately has been running much more frequently.

Mine has run thricely in past six months, (twice in three weeks) after not running in over five years.


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Rare case we want the GEFS to be right Day 14-16...the GEPS is brutal...the GEFS you can see that if you rolled it forward the PV would drop south, the SER would probably move east and we'd be back into the same pattern we have D9-10.  

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30 minutes ago, Allsnow said:

Haven’t had a pattern like this in a very long time…

Probably haven’t seen a pattern like this since March, 2018. If we don’t get anything from 16/17 or 19/20 it would be shocking, assuming that depicted setup is correct. IMO we do need to get something by 1/21 though, because I do think the pattern gets hostile after that given the MJO wave progression 

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5 minutes ago, snowman19 said:

Probably haven’t seen a pattern like this since March, 2018. If we don’t get anything from 16/17 or 19/20 it would be shocking, assuming that depicted setup is correct. IMO we do need to get something by 1/21 though, because I do think the pattern gets hostile after that given the MJO wave progression 

I think next week makes or breaks this winter. If we get nothing, I think outside one event in February it’s probably not going to be a decent winter 

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i do want to stress that caution needs to be exercised, but it's worth noting that the advertised pattern evolution on the EPS is reminiscent of some of NYC's largest storms. this isn't to say that we're going to get one or anything like that... just trying to show the potential that these west-based blocking patterns do have when timed up with a PNA spike out west and established Arctic air

the similarities are uncanny

ezgif-7-97f852d30f.thumb.gif.0ac4d8da22171215dc10b93e7514e240.gif1475168863_NYC18preloading.gif.2889ab5c3c7b80754a2003260c0d55a0.gif

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