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Moving on to mid/late November


ORH_wxman

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Welp, not that anyone's been following these diatribes... but I still see things breaking colder post the 15th - there was question as to whether it would get cold abruptly or in stages; certainly appears the staging will be in order. White T-Giving still not ruled out!

Anyway, the NAO is statically albeit modestly negative, but negative nonetheless. +1 for cold...

The EPO is being stochastically handled by the GFS cluster, and from what I can gather almost as much so by the Euro group. However, the general gist there has modestly negative, too. +1 for cold.

The PNA is currently ragingly negative. In static sense that would be about a +3 for warmth given the -3 SD, but the key there is that both the CPC/CDC agencies show a steady rise from the 15th - 30th of the month, ending around +1 for warmth (-1 SD).

(+1 + +1 + -1)/3 = .33 on the cool side for that 2 week period ending this month.

The deterministic versions of the various models are all showing cold loading into the 50th parallel over N/A, and the 850mb line extending from ~ ORD - NYC by or post the 2oth of the month. So using the blend is probably the course of least regret.

As far as storminess, there doesn't appear to be anything to lock onto as most are likely suffering cabin fever over - haha. I don't know, but something about this ...20th - 30th almost smacks of an icy pattern, too.

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Welp, not that anyone's been following these diatribes... but I still see things breaking colder post the 15th - there was question as to whether it would get cold abruptly or in stages; certainly appears the staging will be in order. White T-Giving still not ruled out!

Anyway, the NAO is statically albeit modestly negative, but negative nonetheless. +1 for cold...

The EPO is being stochastically handled by the GFS cluster, and from what I can gather almost as much so by the Euro group. However, the general gist there has modestly negative, too. +1 for cold.

The PNA is currently ragingly negative. In static sense that would be about a +3 for warmth given the -3 SD, but the key there is that both the CPC/CDC agencies show a steady rise from the 15th - 30th of the month, ending around +1 for warmth (-1 SD).

(+1 + +1 + -1)/3 = .33 on the cool side for that 2 week period ending this month.

The deterministic versions of the various models are all showing cold loading into the 50th parallel over N/A, and the 850mb line extending from ~ ORD - NYC by or post the 2oth of the month. So using the blend is probably the course of least regret.

As far as storminess, there doesn't appear to be anything to lock onto as most are likely suffering cabin fever over - haha. I don't know, but something about this ...20th - 30th almost smacks of an icy pattern, too.

Yup..I've been beating this drum for the past week..and most of the other folks keep saying no cold coming, no pattern change..warmth well ino December..no blocking..

I'm not seeing where they're getting these ideas from..since most signs are pointing to a colder than normal pattern starting around the 20th onwards.

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John I think we'll see a cool down later next week and then perhaps another one near T-Day, but I'm having trouble seeing anything sustainable right now. Possible weak MJO signal going to phase 1 and 2 perhaps argues for some cooler wx post T-Day perhaps. The thing that is killing us is the lack of blocking after next week and also the mega -PNA, but perhaps that relaxes beyond d10. I suppose the one thing to watch is a brief intrusion of cold air and some storminess in the d18-21 timeframe that could....could offer a slight possibility for frozen...especially up in NNE, but that is out there. Even if it did occur, in my eyes...the pattern could turn more milder again beyond the 20th.

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Welp, not that anyone's been following these diatribes... but I still see things breaking colder post the 15th - there was question as to whether it would get cold abruptly or in stages; certainly appears the staging will be in order. White T-Giving still not ruled out!

Anyway, the NAO is statically albeit modestly negative, but negative nonetheless. +1 for cold...

The EPO is being stochastically handled by the GFS cluster, and from what I can gather almost as much so by the Euro group. However, the general gist there has modestly negative, too. +1 for cold.

The PNA is currently ragingly negative. In static sense that would be about a +3 for warmth given the -3 SD, but the key there is that both the CPC/CDC agencies show a steady rise from the 15th - 30th of the month, ending around +1 for warmth (-1 SD).

(+1 + +1 + -1)/3 = .33 on the cool side for that 2 week period ending this month.

The deterministic versions of the various models are all showing cold loading into the 50th parallel over N/A, and the 850mb line extending from ~ ORD - NYC by or post the 2oth of the month. So using the blend is probably the course of least regret.

As far as storminess, there doesn't appear to be anything to lock onto as most are likely suffering cabin fever over - haha. I don't know, but something about this ...20th - 30th almost smacks of an icy pattern, too.

Good luck Tip, you nailed the week of freak!

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John I think we'll see a cool down later next week and then perhaps another one near T-Day, but I'm having trouble seeing anything sustainable right now. Possible weak MJO signal going to phase 1 and 2 perhaps argues for some cooler wx post T-Day perhaps. The thing that is killing us is the lack of blocking after next week and also the mega -PNA, but perhaps that relaxes beyond d10. I suppose the one thing to watch is a brief intrusion of cold air and some storminess in the d18-21 timeframe that could....could offer a slight possibility for frozen...especially up in NNE, but that is out there. Even if it did occur, in my eyes...the pattern could turn more milder again beyond the 20th.

Yes, agree in principle there - more than less what I was getting at with stages...

That said, I didn't labor into it but there are other reasons why I suspect cold gets in and does so more prodigiously than the deterministic, and even ensmble guidance blend would suggest. Some of that inclination is derived by the colder than normal mid and upper level satellite soundings ... that appears pretty much everywhere in the NH, too, interestingly enough. The other is snow cover up N not appearing to be an accident.

I see a -.5 EPO/NOA mode as being more effective than normal for cold loading into the 50th parallel than normal for that kind of register. It's as intangible as the '04 Patriots having mediocre talent on paper, but together they were unstopable.

Or not ...we'll see. But don't be shocked just the same if for some reason a well timed polar high transits N and we get ice/mix and snow from an open wave passing S after the 20th.

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Yes, agree in principle there - more than less what I was getting at with stages...

That said, I didn't labor into it but there are other reasons why I suspect cold gets in and does so more prodigiously than the deterministic, and even ensmble guidance blend would suggest. Some of that inclination is derived by the colder than normal mid and upper level satellite soundings ... that appears pretty much everywhere in the NH, too, interestingly enough. The other is snow cover up N not appearing to be an accident.

I see a -.5 EPO/NOA mode as being more effective than normal for cold loading into the 50th parallel than normal for that kind of register. It's as intangible as the '04 Patriots having mediocre talent on paper, but together they were unstopable.

Or not ...we'll see. But don't be shocked just the same if for some reason a well timed polar high transits N and we get ice/mix and snow from an open wave passing S after the 20th.

Yeah I think it's a low prob, but that's the timeframe I hinted at earlier..especially up in NNE, but those polar airmasses can sink south...I know what you mean. I guess Kevin would call that a complete pattern change..but I wish that pattern around hr 168-200 or so would continue. That's the pattern to cash in on, but it appears the EPO wants to switch considerably after the 20th which would try to warm us up perhaps. I'm on the transient train for now until after T-Day and perhaps longer. Never say never in this field....hopefully the models look a little better today.

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Yeah I think it's a low prob, but that's the timeframe I hinted at earlier..especially up in NNE, but those polar airmasses can sink south...I know what you mean. I guess Kevin would call that a complete pattern change..but I wish that pattern around hr 168-200 or so would continue. That's the pattern to cash in on, but it appears the EPO wants to switch considerably after the 20th which would try to warm us up perhaps. I'm on the transient train for now until after T-Day and perhaps longer. Never say never in this field....hopefully the models look a little better today.

Lmao when I saw the 12z GFS ... it did exactly that for T-G day! Transit high N, open wave S, background pattern has SE ridge warm appeal, yet we freeze our nads in a mix event.

I hate to say ...eerily as it were, this was pretty much exactly what I visualized this morning.

Now, let's verify the f'er :lol:

wow, this run is actually more agressive with the cold in the lower troposphere than even I was intimating though.

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