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Thanksgiving week transient cold shot and the pattern beyond


ORH_wxman

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Based on what?

I think I'll wake up Thursday morning to the ground whitened. Happened yesterday and the day before without it being in the forecast. I am not infected with this Debbie Downer illness. I blame Ji for infecting our threads.

Tuesday Night: A chance of rain and snow. Cloudy, with a low around 31. Chance of precipitation is 40%.

Wednesday: A chance of rain and snow. Cloudy, with a high near 39. Chance of precipitation is 40%.

Wednesday Night: A chance of snow. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.

Thanksgiving Day: Sunny, with a high near 37.

Thursday Night: Mostly clear, with a low around 26.

Friday: Sunny, with a high near 45.

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I think I'll wake up Thursday morning to the ground whitened. Happened yesterday and the day before without it being in the forecast. I am not infected with this Debbie Downer illness. I blame Ji for infecting our threads.

Tuesday Night: A chance of rain and snow. Cloudy, with a low around 31. Chance of precipitation is 40%.

Wednesday: A chance of rain and snow. Cloudy, with a high near 39. Chance of precipitation is 40%.

Wednesday Night: A chance of snow. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.

Thanksgiving Day: Sunny, with a high near 37.

Thursday Night: Mostly clear, with a low around 26.

Friday: Sunny, with a high near 45.

There is also a 30% chance that weather wiz' seductive allure has claimed his virginity, but I'll take the over...

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Gets much warmer we may have a tornado outbreak in December.

I don't like pattern slip. We've all been down those roads in years gone by where the pattern is changing in 3-4 weeks for months while our weenies roast.

I guess on one hand for Phil and I....I'd rather have a January/Feb/Mar winter than a Nov/Dec/early Jan winter anyway. Long as it comes I'm happy

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At least it looks like the EPO is beginning to weaken and loosen up areas upstream....but that is one intense torch

11192011 Euro GFS Compare test8.gif

The only two negative implications of having this pattern right now are:

1) Once it flips, the first couple of storms maybe harsher than usual on the cp, as the ocean maybe more pervasive than it normally would be in latter Decemeber\early January.....but ssts are very malleable and that consequence should be fleeting. A cold pattern will remedy that quicker than many think.

2) The tacit fear of god that the pattern will hardly abate for the majority of the season.

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Gets much warmer we may have a tornado outbreak in December.

I don't like pattern slip. We've all been down those roads in years gone by where the pattern is changing in 3-4 weeks for months while our weenies roast.

I guess on one hand for Phil and I....I'd rather have a January/Feb/Mar winter than a Nov/Dec/early Jan winter anyway. Long as it comes I'm happy

yep.

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yep.

I guess the good news for you and I is the ocean is down to 50 already and we get to enjoy some nice late fall weather the next few weeks. I believe it was 1999 or maybe 98 that I was out on a boat on 12/7 in 70 degree calm weather. Would love to see that again this year, then follow it with a cold snowy pattern around Christmas.

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Meh, I've seen too many Winters to cancel one on 11/19. All the grousing and hand wringing is foolish. LR forecasting is about as accurate as guessing. Have fun wallowing in self pity.

Who canceled winter? I thought we were discussing the chances of you seeing snow on the ground Thanksgiving morning?
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Well, euro ensembles try to hint(I use this real loosely) at an Aleutian ridge at the end of the range. They had it yesterday too. Verbatim, it isn't bad at the end of the run with the 540 line finally south of us, but we know how the ends of the ensemble runs can rush things. We still have that split flow look coming from the vortex near AK. We have ridging in western Canada which tries to force cooler air south, and a trough in the sw which is acting to pump up heights in the east. Vortex is slowly dying, but it is still there. We need that Aleutian ridge to build and either push it west or just weaken it.

Of course we can still sneak a couple of storms in. Nobody is saying, no snow until mid month. However, and this is JMHO, I would keep expectations in check until mid month or so...maybe even a few days after. If it changes in the first week, then consider it an early Holiday gift. It might be something like a yo-yo type transition which perhaps offers a chance at something in the 1st week, but I'm talking more overall sustainable stuff.

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Ginx, you cant be serious, time to jump ship, late November into early December is an absolute blowtorch. I hope things change for the holidays, classic model delays going on now.

Surely you can see the evolution and change the GFS ENS advertises the first week of DEC.This does not look TORCHY to me in comparison, rather normal. Love the HP building into AK.

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Who canceled winter? I thought we were discussing the chances of you seeing snow on the ground Thanksgiving morning?

I'm sorry for implying YOU were cancelling Winter. It's more the tone of some in here. HubbJi for instance. Droopy dog posts about how December will torch despite it being 10 days out before the first of the month. It's laughable that people get so invested over LR model forcasts. As far as I can tell they are almost worthless. Anyway, we'll see about T-day. I won't be surprised to see the ground whitened. It happened twice this week without much support. We can revisit this in a few days. Regardless, I remain bullish for a good season including a good December.

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Well, euro ensembles try to hint(I use this real loosely) at an Aleutian ridge at the end of the range. They had it yesterday too. Verbatim, it isn't bad at the end of the run with the 540 line finally south of us, but we know how the ends of the ensemble runs can rush things. We still have that split flow look coming from the vortex near AK. We have ridging in western Canada which tries to force cooler air south, and a trough in the sw which is acting to pump up heights in the east. Vortex is slowly dying, but it is still there. We need that Aleutian ridge to build and either push it west or just weaken it.

Of course we can still sneak a couple of storms in. Nobody is saying, no snow until mid month. However, and this is JMHO, I would keep expectations in check until mid month or so...maybe even a few days after. If it changes in the first week, then consider it an early Holiday gift. It might be something like a yo-yo type transition which perhaps offers a chance at something in the 1st week, but I'm talking more overall sustainable stuff.

Unfortunately it's still really ugly.

I'd like to see that trough over Alaska/GOA completely gone and replaced by ridging. Given it's a 360 hour forecast you know there must be a large amount of members with a rather sizable vortex continuing.

I know we've discussed this before so we're sort of beating a dead horse but the +EPO is killing us. We can maybe modulate the PNA enough to teleconnect to some east coast troughing but the Nina pattern is going to keep pumping up the SE Ridge. Unfortunately the end of the ensembles bring us to Dec 4... and at that point the models still aren't showing much of a change at all. :axe:

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Good luck with that. Your last hope is the DGEX.

There's a chance he could have a feather dusting on the ground T-day.

It will be torched away in about 2 hours on Friday, but a white T-day would be cool if we could actually get a flip to snow at the end. Not overly optimistic though. The whole pattern stinks.

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