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2011 Winter Banter Thread


yoda

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We need to somehow get rid of that se ridge. Otherwise it's a roll over transient -EPO ridge. This in turn leads to a cold shot from a positively tilted trough aligned sw-ne...which isn't a good delivery. Fast PAC flow behind roll over ridge causes this shot to be short lived and also bounces out of here pretty dam quick thanks to the se ridge. Rinse and repeat.

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We need to somehow get rid of that se ridge. Otherwise it's a roll over transient -EPO ridge. This in turn leads to a cold shot from a positively tilted trough aligned sw-ne...which isn't a good delivery. Fast PAC flow behind roll over ridge causes this shot to be short lived and also bounces out of here pretty dam quick thanks to the se ridge. Rinse and repeat.

We had a pretty productive period below after a wretched December, without the pattern getting "good"...I think SNE did as well...nothing epic but cold and 3 moderate events....I guess maybe it was the block west of Ireland and probably the SE ridge relaxed...and the AK ridge did its job getting the cold to make it to the east, even with a pretty NIna look over Canada and the CONUS and over AK....Maybe there is a way out of this pattern that isn't really a pattern change

post-66-0-03297500-1323671040.gif

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Next 16 days on the 12z GFS. Pretty brown Christmas for a lot of places if this comes to fruition.

Well, at least it would be chilly/cold for Christmas. Better brown and 35-40F then brown and 60F.

The storm next Thursday (22nd) is worth keeping an eye on. Much too warm as currently progged, but the vort and surface low take a nice track for our area. Perhaps it will trend colder.

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Well, at least it would be chilly/cold for Christmas. Better brown and 35-40F then brown and 60F.

The storm next Thursday (22nd) is worth keeping an eye on. Much too warm as currently progged, but the vort and surface low take a nice track for our area. Perhaps it will trend colder.

I think a window of opportunity along the lines of 1/00 is what we can hope for when the current +AO regime switches in late this month/early JAN. I still think the sun has been our nemesis which wasn't anticipated by anyone, not that it could have been to any great degree. Then the question will be whether we can score when given a more favorable pattern.

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I think a window of opportunity along the lines of 1/00 is what we can hope for when the current +AO regime switches in late this month/early JAN. I still think the sun has been our nemesis which wasn't anticipated by anyone, not that it could have been to any great degree. Then the question will be whether we can score when given a more favorable pattern.

that was a lucky pattern....that isn't something I would ever predict...though if you can get a block, crazy things can happen

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that was a lucky pattern....that isn't something I would ever predict...though if you can get a block, crazy things can happen

I would assume that the AO and NAO are going to relax a few times before either index moves into negative territory for any sustained period (if they do at all). The october snowstorm featured a relaxed (but not negative) NAO and followed a very brief period of a -AO (cold air source? not sure).

As we move into late Dec - early Feb we can easily get snow (although usually not big storms) with a neutral NAO and AO. It's been a stinker so far this year with both the atlantic and pacific. Just a craptastic setup and seems stubborn as hell.

I think you were the one who responded to one of my posts about the AO and said we don't need arctic air to be cold enough for snow. Very true. Even if the pattern never does the opposite flip this winter we will probably do ok. I'd like to start with some sort of ridging around alaska somewhere. We'll see what transpires in the next couple of weeks. I'd take my chances with a neutral ao/nao and a positive pna at this point. That's probably the first look we'll see before any real block or cold air transport sets up.

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that was a lucky pattern....that isn't something I would ever predict...though if you can get a block, crazy things can happen

14" imby and <4" in BOS followed by rain

the word "lucky" cannot even begin to describe that storm devilsmiley.gif

all kidding aside, that was a great 3 week period with an seemingly often forgotten initial event of around 5" the week before the 1/25 storm and then the 4-6"+ event 1/31/00 (I believe that was the date)

that was definitely maxing out w/a good pattern

and I agree w/you, we shouldn't expect to be that lucky again over a 3 week stretch, but who knows

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I just finished a xmas week pattern/snow chances piece for CWG. I think it will be run tomorrow which means I may still tweak it tonight.

we have the same chance for a white christmas as tampa bay. Our goal is that on christmas, we are seeing some better things on the horizon. I can live with that. If its Christmas and the 384 gfs shows lows in canada and highs in Tennesee...winter is over

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Your obsession with the QBO is weird.

far from it

go back and look at all our AN snow winters since 1980 (and I say 1980 because before that date it is not so true)

just about every one was an E QBO; yeah, 2 glaring exceptions and they were the one big storm in the months of 2/83 and 3/93 which were both W QBO winters

but every other great year had an E QBO

I don't know, nor do I care, why

I just know the numbers don't lie

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OT but for some reason every time someone posts QBO I always think of the Simpsons episode when their playing scrabble and Bart spells quijibo.

I'll take enso neutral next year. At the very least no more Nina's for a while.

Neutrals after cold periods tend to have a lag effect and take on characteristics of the prior enso state. They aren't usually very good. Rarely snowy. My wild guess would be we have a 3rd year Nina next winter.

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Neutrals after cold periods tend to have a lag effect and take on characteristics of the prior enso state. They aren't usually very good. Rarely snowy. My wild guess would be we have a 3rd year Nina next winter.

LOL- I'm a number nerd and already went back through a bunch of neutral after nina's. Not a pretty list.

You realize your post implies that you are potentially canceling next winter? Ji is gonna faint.

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Neutrals after cold periods tend to have a lag effect and take on characteristics of the prior enso state. They aren't usually very good. Rarely snowy. My wild guess would be we have a 3rd year Nina next winter.

Since 1950, there has never been more than 2 consecutive DJF periods that would be classified as la Nina, so 3 in a row seems unlikely. Neutral seems to be the most reasonable guess based only on prior trends

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LOL- I'm a number nerd and already went back through a bunch of neutral after nina's. Not a pretty list.

You realize your post implies that you are potentially canceling next winter? Ji is gonna faint.

DC winters are one of 3 things. Awesome, Kind of suck or awful. 90% of the time awesome is out of the running. It looks to be that way this winter but that shouldn't surprise anyone. Nobody should be canceling winter in mid December. We are firmly still in the running for a winter that kind of sucks, but isn't awful.

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