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January 2026 regional war/obs/disco thread


Baroclinic Zone
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30 minutes ago, brooklynwx99 said:

I like the second wave more, as is often the case... it doesn't have anything clawing at its back and the antecedent airmass is more favorable. that doesn't preclude the 16th, but if I were a betting man, I would put my money on the 18th

like one of these is way more typically productive than the other

...

...

well...it's gotta pick one or the other...

these two have been tussling in the modeled flow for day's at this point.   The latter of the two is obtrusive - it's there because of ( probably ) the "error proneness" of the western ridge being as far west as the GFS keeps placing it.  The standard dimensions for L/W spacing doesn't allow the trough aspect to be coherent.. The models "don't know" what is dominant yet nor it's form - not very well. 

Anyway, if the ridge doesn't improve, the 2nd wave may end up going down the same disruptive route given time.   I'm warning y'all - I'm not wrong about this. The determinism is shaky because of it.   It would be a lot easier if the PNA ridge part of the total wave space would just be a little more east.

By the way, the 2nd of the two is not as well supported by index timing but ... that is actually more negotiable than trying to stretch the trough down stream of that PNA ridge 

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6 minutes ago, Typhoon Tip said:

well...it's gotta pick one or the other...

these two have been tussling in the modeled flow for day's at this point.   The latter of the two is obtrusive - it's there because of ( probably ) the "error proneness" of the western ridge being as far west as the GFS keeps placing it.  The standard dimensions for L/W spacing doesn't allow the trough aspect to be coherent.. The models "don't know" what is dominant yet nor it's form - not very well. 

Anyway, if the ridge doesn't improve, the 2nd wave may end up going down the same disruptive route given time.   I'm warning y'all - I'm not wrong about this. The determinism is shaky because of it.   It would be a lot easier if the PNA ridge part of the total wave space would just be a little more east.

By the way, the 2nd of the two is not as well supported by index timing but ... that is actually more negotiable than trying to stretch the trough down stream of that PNA ridge 

well hey, it's trending that way right now

gfs-ens_z500a_namer_fh186_trend.thumb.gif.416030b7e61d834e47f60857d2d0b195.gif

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you do get the sense there's incremental improvements.   It's just that the flow being stressed east of the W biased ridge isn't [ probably ] going to provide an arena for chunk move in this case.  

Truth be told ... the position of that PNA ridge actually argues for a storm track between Detroit and Buffalo.  That'd be a hoot.  Hasn't been a model run yet painting that dystopian image hahaha. 

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49 minutes ago, brooklynwx99 said:

I like the second wave more, as is often the case... it doesn't have anything clawing at its back and the antecedent airmass is more favorable. that doesn't preclude the 16th, but if I were a betting man, I would put my money on the 18th

like one of these is way more typically productive than the other

 

The 0z ECM at 168hr looks remarkable similar to 246hr. It easy to say now that we prefer the later threat, but when that threat gets nearer it might not look any better.

1896871732_ECM168.thumb.png.b77ce300dd193147d425078d2df3a781.png1336673631_ECM246.thumb.png.ba85374da9c76ddbf7e34dd7654a795d.png

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4 minutes ago, brooklynwx99 said:

this is why we look at ensembles and not OP runs

The point remains. The closer a threat, the clearer we can see its flaws. E.g, ensemble means blend and hide shortwave details that appear in closer ranges. Choosing the 2nd showcase because we don't like the look of the 1st isn't always correct. Jan 15 at one time had a very favorable "look" too.

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6 minutes ago, Typhoon Tip said:

you do get the sense there's incremental improvements.   It's just that the flow being stressed east of the W biased ridge isn't [ probably ] going to provide an arena for chunk move in this case.  

Truth be told ... the position of that PNA ridge actually argues for a storm track between Detroit and Buffalo.  That'd be a hoot.  Hasn't been a model run yet painting that dystopian image hahaha. 

I was going to quote like 3 posts and say ‘cut’ but I didn’t want to diminish mine or anyones else's optimism.  

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I think the most important takeaway from the 12z suite is that the longwave ridge is onshore out west or right on the coast and it has a couple pulses up and down…when you have that longwave setup, you’re putting yourself in the firing range so you’re going to get some legit chances with even a little bit of wiggle room. That’s why we’re seeing hits on different models that all look a slightly different with the shortwave evolution. But they all produce something because the longwave pattern wants to put a storm system near the east coast. 
 

Hopefully we don’t see that longwave look degrade as we get closer. 

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35 minutes ago, eduggs said:

The point remains. The closer a threat, the clearer we can see its flaws. E.g, ensemble means blend and hide shortwave details that appear in closer ranges. Choosing the 2nd showcase because we don't like the look of the 1st isn't always correct. Jan 15 at one time had a very favorable "look" too.

It still does 

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