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Pattern Changing: Early December threats?


ORH_wxman

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Yea, even if it ends up trivial, it would still supply the novelty of the first snow of the season.

That storm is now looking like more of a 12/6-7 event, and hopefully we can get something out of it. Even if it ends up cutting west, a bit of snow before the rain would be a nice change of pace... recently its been ZR/IP before rain (Friday morning my forecast has another .1-.2" of ice/ZR before rain), maybe by then we'll have enough cold in here to start as snow.

I still think the primary may end up tracking too far NW. Remember, in these Nina seasons (like 07-08) the primary low tends to be stronger and hold on longer than the models predict. I know Ginx will disagree saying quicker re-development and more snow, but it does seem to happen quite often with lakes cutters in a Nina pattern the primaries hold on longer, with re-development of a secondary further northeast than depicted on the progs.

Remember 2007-2008 always thinking we might luck out with redeveloping secondaries bombing us with snow... and the models would always tease with Tip writing paragraphs of how a CCB will destroy eastern New England... but as the event was upon us they all turned into only SWFE before dryslotting, as northern ME got pummeled by a secondary that developed too late for most of us.

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Euro ensembles still want to hang troughing out west, so that makes the storm around 12/5 a toss up. It looks like redevelopment overhead, but it looks like there is a lot of spread. It is a little stronger with the nao block, which is trying to fight lowering heights in the EPO region and out west. Overall not much change from 00z imo, a little lower with heights along the Pacific coast, a little higher with heights over the Davis Straits.

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Euro ensembles still want to hang troughing out west, so that makes the storm around 12/5 a toss up. It looks like redevelopment overhead, but it looks like there is a lot of spread. It is a little stronger with the nao block, which is trying to fight lowering heights in the EPO region and out west. Overall not much change from 00z imo, a little lower with heights along the Pacific coast, a little higher with heights over the Davis Straits.

i wonder what nzuckers thoughts are about this pacific vs atlantic battle :snowman: ....

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what are the oddz we awaken Jerry's elephant i.e THe stale marine air that intrudes and overwhelms the maritimes in a few more weeks like last years blocking ended up doing. Is this a serious concern.

Scott or will is this something that is somewhat of a concern ? or /likely? over the next month given a look at the long term models/ weeklies?

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what are the oddz we awaken Jerry's elephant i.e THe stale marine air that intrudes and overwhelms the maritimes in a few more weeks like last years blocking ended up doing. Is this a serious concern.

Scott or will is this something that is somewhat of a concern ? or /likely? over the next month given a look at the long term models/ weeklies?

Eh, I don't think it's likely, although an extreme west based -nao could do the trick. I'm not worried about that right now...the Pacific is what worries me.

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Eh, I don't think it's likely, although an extreme west based -nao could do the trick. I'm not worried about that right now...the Pacific is what worries me.

thanks for the reply scott.....so an extreme west based -nao "prolonged" is the usual culprit . The pacific is a raging beast of furry that promises to bury the cascades and northern sierra with meters of snow....and here i am believing that we will have very little wiggle room needing these cutters to stop for the love of god. when heights in the SW (4 corners) don't drop every 3 days then i will breathe a sigh of relief.

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That storm is now looking like more of a 12/6-7 event, and hopefully we can get something out of it. Even if it ends up cutting west, a bit of snow before the rain would be a nice change of pace... recently its been ZR/IP before rain (Friday morning my forecast has another .1-.2" of ice/ZR before rain), maybe by then we'll have enough cold in here to start as snow.

I still think the primary may end up tracking too far NW. Remember, in these Nina seasons (like 07-08) the primary low tends to be stronger and hold on longer than the models predict. I know Ginx will disagree saying quicker re-development and more snow, but it does seem to happen quite often with lakes cutters in a Nina pattern the primaries hold on longer, with re-development of a secondary further northeast than depicted on the progs.

Remember 2007-2008 always thinking we might luck out with redeveloping secondaries bombing us with snow... and the models would always tease with Tip writing paragraphs of how a CCB will destroy eastern New England... but as the event was upon us they all turned into only SWFE before dryslotting, as northern ME got pummeled by a secondary that developed too late for most of us.

Actually I agree, but let's add a very low neg NAO to the equation with a negative EPO, cutters redevellop more readily. That being said I would be content with 07/08 again.

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thanks for the reply scott.....so an extreme west based -nao "prolonged" is the usual culprit . The pacific is a raging beast of furry that promises to bury the cascades and northern sierra with meters of snow....and here i am believing that we will have very little wiggle room needing these cutters to stop for the love of god. when heights in the SW (4 corners) don't drop every 3 days then i will breathe a sigh of relief.

Nah, don't sweat the cutters right now. We could easily flip the script in a couple of weeks, like 2007.

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Nah, don't sweat the cutters right now. We could easily flip the script in a couple of weeks, like 2007.

The year of the smallest highest accumulating dendrites ever. Like someone was pouring sugar out of a bag.

The more I read of 70 the more I remember , had Quincy bus experience that year, also the year I started skiing in earnest.

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I'm not even sure its on the tracks right now.

But I think Pete never left the snow train... he's just sitting there waiting for it to gain some momentum... just like those lonely boxcars you see sitting in rail yards for weeks on end.

More like Linus waiting for the GREAT PUMPKIN.lol Actually, I see real potential coming up.

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Sometimes it's hard for people to see the trees through the forest.

Dude there's like no serious snow threats until the 300+ hr juncture on the GFS, which everyone knows is useless. Tuesday's storm will certainly be rain with temperatures spiking into the 50s; there could be a period of light snow on the back end of the developing secondary for higher elevations of NNE, but even that doesn't seem certain at this point. The second storm has basically the same problem: even though there's slightly more cold air on the map, the -PNA pattern is trending stronger as we approach, which means the storm is likely to bomb out too early and change most people to a mix/rain. If I lived in SNE, I'd keep an eye on the December 5th event, but not get too excited about it. There's just no stopping the strong GoA low/Aleutian ridge configuration with a big trough bringing cold and snow to the West with ridging ahead of it. With the Pacific cooling so fast, it makes sense to hammer this pattern for a while.

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