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January Med/Long Range Disco


WinterWxLuvr

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Doesn't have much support from the euro ensemble mean so right now I'd guess that the euro is an outlier.

Agreed. I was just posting verbatim. I would think a front end mixy event is a much more likely outcome if we even get frozen. Antecedent airmass looks ok for a time.

Long ways out though. Even though the se ridge is bothersome, a faster kick or weaker solution is still "possible". Definitely far from a big storm setup. Hench the big totals on the op run are way suspect.

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Yea true. While the arrival of the cold will be different here this year I think some of the calls of a better second half for snow may verify based on how we tend to backload in Nino winters (based on the stats I've seen others post here). LR isn't my thing and I think it's proven useless this winter anyways so who knows.

 

Well, it would be pretty difficult not to do better than the first half.

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I wonder if there's ever been a completely snowless Dec. here?  I can't recall one, but then my memory would not be stimulated by traces.  

 

Complete, utter shutout (not even a trace) has happened 5 times at BWI:
 
1885-86
1889-90
1978-79
1994-95
2001-02
 
It should be noted that two of those winters ended up above average overall though: 1885-86 and (especially) 1978-79.
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Our avg is low enough we can score a few times and not want to die at least. That said, I've seen a lot of stats sharing around the northeast and the ytd numbers rolled forward are not very good in a pretty strong manner.

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Our avg is low enough we can score a few times and not want to die at least. That said, I've seen a lot of stats sharing around the northeast and the ytd numbers rolled forward are not very good in a pretty strong manner.

 

This was on my facebook feed... and although we're not SNE I'd have to say it doesn't bode well even for us

 

10847326_734527959974911_621909783041528

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As Ji would say...the 12z euro is a compete disaster

It's a cold and dry alternating with wet and warm..  As long as the cross polar flow lasts, the real cold air may still dump into the west but some will get east behind cutters.  One thing that is interesting on the 240 euro and on the gefs ens mean is the location of the strong/massive positive anomaly over AK.  it's far enough north that you usually start getting flow undercutting it which might start bringing wet back into Ca but that might also at times shove the low latitude ridge east on occasion. that would be a plus. lately  It's been way too far west and strong.    That's part of the reason all the stronger shortwaves become some form of cutter, more  like a nina year than nino.

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Beautiful day today. Days like today make winters like 01-02 11-12 tolerable. At least it's sunny and warm. Anyway, 12-13 like second half coming in beginning Jan 17th and lasting through March 26th but better for the mid atlantic than that year. 19" - 34" median snow range incoming. Someone or all could see a MECS during this range, especially the MidAtlantic.

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Well the Nam provides an SECS with what looks to be the .50" liquid QPF line along DC and points south and east on the morning of December 30, so there is that.

Still enough euro ens members showing a stripe to think the op could come around to something. Still enough time for models to agree on a minor event.

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Euro ens d10-15 isn't ideal but pretty acceptable. SE ridge gets a shove. 850's below freezing the entire period. Tons of cold in canada. It's at the very least period that "could" produce. Enough decent snow solutions on the members to stay interested.

 

I think we are going to see the pattern flip around 1/15 or so....the SE ridge should be booted around Day 12 and from then on out we take another 8-10 to really get a very good pattern setup, it would not surprise me if something did occur in the window around 1/8 to 1/15 though.

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does this count as anything close to a SSW?

link didn't work so this is what I was referring to

fluxes.gif

 

 

Not a major warming because zonal winds never reverse. It's definitely better than nothing though and some of it appears to propagate down into the troposphere.  I think the SSW is over rated though. We should have an okay pattern after about 1/10 with possibly a good pattern by the end of January if the MJO comes around.

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I think we are going to see the pattern flip around 1/15 or so....the SE ridge should be booted around Day 12 and from then on out we take another 8-10 to really get a very good pattern setup, it would not surprise me if something did occur in the window around 1/8 to 1/15 though.

Yea, there's no reason to panic. Euro ens and gefs look fine. The next 2 weeks are far from a writeoff look.

Euro splits the strat vortex d5 @ 10/30/50hpa and keeps it split. Is this meaningful? I have no skill on this subject. I assume it isn't because there's no talk about it.

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Yea, there's no reason to panic. Euro ens and gefs look fine. The next 2 weeks are far from a writeoff look.

Euro splits the strat vortex d5 @ 10/30/50hpa and keeps it split. Is this meaningful? I have no skill on this subject. I assume it isn't because there's no talk about it.

Yet we hear about SSW events all the time. Almost all models split the PV yet as you said there is no talk about it

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Yea, there's no reason to panic. Euro ens and gefs look fine. The next 2 weeks are far from a writeoff look.

Euro splits the strat vortex d5 @ 10/30/50hpa and keeps it split. Is this meaningful? I have no skill on this subject. I assume it isn't because there's no talk about it.

 

I think the PV will leave Canada for a time somewhere after 1/6-1/8, this will probably kick the panic into overdrive but it'll be back soon after.  Some of the GFS ensembles have shown this too.

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I think the PV will leave Canada for a time somewhere after 1/6-1/8, this will probably kick the panic into overdrive but it'll be back soon after. Some of the GFS ensembles have shown this too.

A couple of weeks ago you were somewhat concerned about end of Dec and early Jan and turned out right. You seem bullish on mid Jan on?

MJO FTW?

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A couple of weeks ago you were somewhat concerned about end of Dec and early Jan and turned out right. You seem bullish on mid Jan on?

MJO FTW?

 

Mostly the QBO inevtiably weakening and the MJO likely going into phase 7 or 8....even if we get the QBO down to -18 its better than -23 to -25.  I also like the EPO ridge, I think thats going to be tough to get rid of the rest of the winter.

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