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Approaching Thanksgiving and the Rest of November


moneypitmike

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Good solid effort - best of luck with the outlook. Though I'm sure you'd rather understand the "art" of the global circulation system before anything else :)

Anyway, I would also consider the easterly phase of the QBO, and the known correlation between it and the advent of Sudden Strat. Warming events. These will often influence the AO atmospheric teleconnector - which is a measure of the degree in which the westerlies "pancake" in latitude - heralding in cold anomalies toward the mid latitudes. -AO = brrrr, +AO = Kevin going, "ah, fu - schiiit"

One thing that is interesting to me is like what took place in 2010-2011... We had a predominantly -AO/-NAO winter but there really were any SSWs... SSWs are just one way, however, to encourage a -AO.

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This is going to be torturously slow temp drop. At least we're not waiting for a phase change like we were one early storm last season.

I want to kiss these 50's goodbye for a few months. Could happen after today, but I won't be suprised if we sneak a another couple more and perhaps a horrific day in February with warmth and fog. Nightmare--makes me shudder.

I bet you'll see 50+ again before Spring. Even ORH averages 7 days of 50+, and 1 day of 60+ in met. winter. Looks like only twice in ORH's long history has there been a winter of not hitting 50 at least once: 1904-05 and 1956-57.

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I bet you'll see 50+ again before Spring. Even ORH averages 7 days of 50+, and 1 day of 60+ in met. winter. Looks like only twice in ORH's long history has there been a winter of not hitting 50 at least once: 1904-05 and 1956-57.

Yeah, 1993-1994 was a dern cold winter most places, but a cutter drove the temp and dp to 60 one night in early February.

it only takes one cutter to taint the barrel.

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There isn't really any big sign for an epic December right now (even though Kevin insists on it), but I don't see a big torch sign either...despite torontoblizzard's worry with no reason given.

A poleward Aleutian ridge will probably produce a decent setup for us, but we walk a fine line if the Atlantic remains unfavorable.

Yeah but the other side of that fine line... ever heard of MacFarland? That's basically a strong Alaska ridge combined with a powerful PV in southern Greenland, and results in gigantic cold snaps... a reverse of this pattern happened at the end of last winter, forcing major cold into Europe. Also, some good news for January -- the stratospheric vortex is already trying to split... it will likely be unsuccessful, but that can't be a bad thing if you want a weak vortex.

And he is absolutely right. They are Nazis with their data and charge you your first born to get it.

$250,000 per year x 18 years = $3,500,000... now we know what he/she will be worth :P

Also, snow cover is beautiful right now:

411RA.gif

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This looks interesting:

post-475-0-66253400-1352759880_thumb.gif

0C 850 line looks to straddle the South Coast. 0C 2m line is well north in Central Quebec but we all know how accurate that is in the long range with dynamic and evaporational cooling. High pressure is holding strong even though it's a relatively mild high pressure. Looks like a raw day immediately along the coast with some chance for snow inland. I still think this one is going to be rain, but the 18z GFS definitely has a colder look at the storm.

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This looks interesting:

post-475-0-66253400-1352759880_thumb.gif

0C 850 line looks to straddle the South Coast. 0C 2m line is well north in Central Quebec but we all know how accurate that is in the long range with dynamic and evaporational cooling. High pressure is holding strong even though it's a relatively mild high pressure. Looks like a raw day immediately along the coast with some chance for snow inland. I still think this one is going to be rain, but the 18z GFS definitely has a colder look at the storm.

Lock it. No qpf for me again. :)

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This looks interesting:

post-475-0-66253400-1352759880_thumb.gif

0C 850 line looks to straddle the South Coast. 0C 2m line is well north in Central Quebec but we all know how accurate that is in the long range with dynamic and evaporational cooling. High pressure is holding strong even though it's a relatively mild high pressure. Looks like a raw day immediately along the coast with some chance for snow inland. I still think this one is going to be rain, but the 18z GFS definitely has a colder look at the storm.

Yeah it's a coldish run overall with a stem-wound snowy nor'easter toward the la-la range.

It seems when the westerlies temporarily slip N, we aren't replacing it with much sub-tropical ridging. The result of that is vorticity shrapnel left over in the flow gangs up on the baroclincity over the western Atlantic, you got this slow moving coastal.

The idea of colder air in there is a wedge job. There are a couple episodes of confluence in NE Ontario and that is helping a +PP N to then nose down. It's an interesting way to insert a cool pattern into a warmer appeal.

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Good solid effort - best of luck with the outlook. Though I'm sure you'd rather understand the "art" of the global circulation system before anything else smile.png

Anyway, I would also consider the easterly phase of the QBO, and the known correlation between it and the advent of Sudden Strat. Warming events. These will often influence the AO atmospheric teleconnector - which is a measure of the degree in which the westerlies "pancake" in latitude - heralding in cold anomalies toward the mid latitudes. -AO = brrrr, +AO = Kevin going, "ah, fu - schiiit"

One thing that is interesting to me is like what took place in 2010-2011... We had a predominantly -AO/-NAO winter but there really were any SSWs... SSWs are just one way, however, to encourage a -AO.

Thanks for the input.

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The ECMWF ensembles are hinting at a -NAO for the first time in the long range which is teleconnected nicely to a bit of WC ridging despite the continued GOA low. Pretty decent cross-polar flow trying to get established north of the Bering Straight.

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The ECMWF ensembles are hinting at a -NAO for the first time in the long range which is teleconnected nicely to a bit of WC ridging despite the continued GOA low. Pretty decent cross-polar flow trying to get established north of the Bering Straight.

They've been off and on with that, now on. The one way if oriented right we can pop a little ridge.

The poor arctic ice mongers will not be happy though.

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They've been off and on with that, now on. The one way if oriented right we can pop a little ridge.

The poor arctic ice mongers will not be happy though.

GEFS is actually agreeing with it pretty closely too...so that is probably a good sign. That combined with the weeklies is probably some more cause for optimism heading into early December. Verbatim the ensembles say we could have fun at the end of November but often these shifts in pattern are rushed a bit.

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GEFS is actually agreeing with it pretty closely too...so that is probably a good sign. That combined with the weeklies is probably some more cause for optimism heading into early December. Verbatim the ensembles say we could have fun at the end of November but often these shifts in pattern are rushed a bit.

Yeah it's looking hopeful anyways, for long range guidance to agree is always nice. We can all be a little more optimistic when we get inside the d10 threshold, but sounds like the KFS is already gung ho.

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