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Thanksgiving week transient cold shot and the pattern beyond


ORH_wxman

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Yes the course of lease regret re that system this next week is to expect cold rain until otherwise proven with more certitude. Even joking about 6-12" lollies or whatever in those post say is not really funny actually because it does have a way of "tinting" the expectation somewhat; it's called bargaining in psychological parlance, to use humor to dodge the disappointment.

If that were not enough... yeah, the GFS grid is not going to resolve thermodynamics on intra-SNE scales on a D7 panel... A polar high transiting N with an open wave running through the critical 1 to 1.5 degree rule-of-thumb latitudes S of LI after Nov 1 any year, does not preclude the possibility that the GFS is too warm.

Remember, there is hygroscopic concerns that the GFS is DEFINITELY not going to see the feed-back to cold (perhaps someone with more formal model physics knowledge can speak to that). Evaporational isn't the whole thing either.. That track looks pretty ideal for frontogenic mid levels, and meso banding ...where in goodness creation that evolves, would punch a hole through any marginatlity that is going on at the time. There's a lot there. Looks like a NJ model low in this run.

Euro might be interesting... duh. Nice phasing on the 00z - too much?

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Yes the course of lease regret re that system this next week is to expect cold rain until otherwise proven with more certitude. Even joking about 6-12" lollies or whatever in those post say is not really funny actually because it does have a way of "tinting" the expectation somewhat; it's called bargaining in psychological parlance, to use humor to dodge the disappointment.

If that were not enough... yeah, the GFS grid is not going to resolve thermodynamics on intra-SNE scales on a D7 panel... A polar high transiting N with an open wave running through the critical 1 to 1.5 degree rule-of-thumb latitudes S of LI after Nov 1 any year, does not preclude the possibility that the GFS is too warm.

Remember, there is hygroscopic concerns that the GFS is DEFINITELY not going to see the feed-back to cold (perhaps someone with more formal model physics knowledge can speak to that). Evaporational isn't the whole thing either.. That track looks pretty ideal for frontogenic mid levels, and meso banding ...where in goodness creation that evolves, would punch a hole through any marginatlity that is going on at the time. There's a lot there. Looks like a NJ model low in this run.

Euro might be interesting... duh. Nice phasing on the 00z - too much?

It's a battle next week, because the ridge temporarily builds out west (colder air would try to come south over the northeast), but that s/w trough ejects out of the sw (fights the cold trying to come se by raising heights over the east ahead of it). Pretty cool actually. Hopefully the ridge out west wins.

No surprise, the GEFS really south on this run.

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People should be expecting nothing but rain from this storm at this point. Shame on them if they expect otherwise unless you are in the mts of NNE.

There would still be work to do in SNE, but certainly nobody should expect anything like that since we our discussing a low prob event beyond 120hrs out.

What will said. If people are seriously expecting a snowstorm in C/SNE, out of this, you are seriously delusional.

My preference on this modeled system would be for the northern stream to come in faster than currently, pushing the baroclinic zone further south and than have the follow up southern stream energy remain weak and scoot off south of us. Any phasing of these pieces of energy is problematic for us in C/SNE.

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What will said. If people are seriously expecting a snowstorm in C/SNE, out of this, you are seriously delusional.

My preference on this modeled system would be for the northern stream to come in faster than currently, pushing the baroclinic zone further south and than have the follow up southern stream energy remain weak and scoot off south of us. Any phasing of these pieces of energy is problematic for us in C/SNE.

Even if it's mostly rain, the prospect of a flip to tail end snow isn't a pipe dream, but as of now..this is not a SNE snow deal. Doesn't mean it couldn't be, but just keep prospects down and families of people like snowNH can still expect them to attend Holiday festivities, not swinging from the rafters.

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Even if it's mostly rain, the prospect of a flip to tail end snow isn't a pipe dream, but as of now..this is not a SNE snow deal. Doesn't mean it couldn't be, but just keep prospects down and families of people like snowNH can still expect them to attend Holiday festivities, not swinging from the rafters.

:lol:

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At least that air mass in SE Canada is pretty cold...colder than anything probably for the 2 weeks after that as its leftover from the transient -EPO we are getting right now.

If we have a 1025-1030 high N of us, that could actually be an icing signal for the interior if 850s stay too warm. Its a bit early for ice, but they have happened in Nov before. We want to see the high closer to the 1028-1030 range.

An icestorm is locked this winter..Only thing we haven't had this year. This will probably be it next week..to finish off the rest of the trees,,and leave everyone without power for the holiday

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