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Winter 2014-2015 Pattern Discussion Thread III


BIG FROSTY

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Matter of fact, the Doc doesn't like anyone. it shows a little FZDZ around GSP by early Sun, but then everyone warms up above freezing as the rains coming in from the west and Southwest.  The southern plains, you ask?  That is ALL rain as well.  *from what I can tell*  I am afraid this is going to be closer to reality than what the GFS/GFS Para and maybe CMC has as well.  Looks worse for sure today, but doesn't mean it can't go back the other way.  The EURO may very well be wrong, but you really can't beat it in this range..I am siding more and more with the EURO as well.  UGH!!!     **EDIT** the end of the run for the euro has a ton of potential with that energy rolling through.

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Matter of fact, the Doc doesn't like anyone. it shows a little FZDZ around GSP by early Sun, but then everyone warms up above freezing as the rains coming in from the west and Southwest.  The southern plains, you ask?  That is ALL rain as well.  *from what I can tell*  I am afraid this is going to be closer to reality than what the GFS/GFS Para and maybe CMC has as well.  Looks worse for sure today, but doesn't mean it can't go back the other way.  The EURO may very well be wrong, but you really can't beat it in this range..I am siding more and more with the EURO as well.  UGH!!!     **EDIT** the end of the run for the euro has a ton of potential with that energy rolling through.

Maybe it shows something in 10 days but, as you said, the EURO has only been decent within 5 days or so and pretty useless outside that

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That's a pretty strong high up there, Pack, but the Euro hauls ace to the NE with the northern stream wave.  Confluence pulls out, no precip falls fast enough to lock in the wedge, and bye bye winter storm.  It's not an unreasonable solution, and it's not really an amped up solution.  It's just a timing thing really, and the fact that I think the Euro is keying in on a different piece of southern stream energy.  Like I said, it's not an unreasonable solution.  But it also doesn't mean it's right either.  It was a deviation from the previous run.  The troubling thing is, the Euro hasn't shown a widespread winter storm like the GFS, para, and CMC have.

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I find it suspicious that the Euro has had multiple solutions while for the most part the GFS/GFSP/CMC have all been consistent. With the flow of energy I suspect Euro probably is more likely....but again I'm certainly not taking it to the bank. I thought for sure it would fold at 12z and instead it stuck to it's guns but with a weaker faster moving high.  Either way I'm more interested in the following weekend. 

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I find it suspicious that the Euro has had multiple solutions while for the most part the GFS/GFSP/CMC have all been consistent. With the flow of energy I suspect Euro probably is more likely....but again I'm certainly not taking it to the bank. I thought for sure it would fold at 12z and instead it stuck to it's guns but with a weaker faster moving high. Either way I'm more interested in the following weekend.

The ten day stom??? Ok

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The ten day stom??? Ok

It's been literally modeled since the 4th or at least that's when I posted on here about it...it hasn't backed down since. That's why I haven't posted about the upcoming ice threat because I have a feeling once models lock we'll get a better idea on that one anyway (like when the NAM gets in range and what not) but both the GFS and Euro have had a deep anomaly in the SE for days now, whereas the ice storm potential is so small if you had looked at it at Day 10 you would have seen no anomaly present. Thats how much of a wimp that system is...at least the Day 10 storm has tons of energy involved ready to go boom if it gets together at the right time.

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It's been literally modeled since the 4th or at least that's when I posted on here about it...it hasn't backed down since. That's why I haven't posted about the upcoming ice threat because I have a feeling once models lock we'll get a better idea on that one anyway (like when the NAM gets in range and what not) but both the GFS and Euro have had a deep anomaly in the SE for days now, whereas the ice storm potential is so small if you had looked at it at Day 10 you would have seen no anomaly present. Thats how much of a wimp that system is...at least the Day 10 storm has tons of energy involved ready to go boom if it gets together at the right time.

Ok and this weekends " event " has been modeled on the GGEM and GFS for well over a week and for a while it robust .

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Yep lots of potential with that one I think. 

 

Potential failure as has happened so often this winter?

PF_CurveNAVAIR.jpg

 

Sorry... I am getting discouraged with winter and the hype presented with no results. I know it's still early but at what point do we present a level playing field and look at a potential model forecast failure along with these anticipated winter storm events. There must be a reason for these continued swings in the models from long to near range forecasts. Are we trying to fine tune the models beyond their capacities or have we stretched them beyond what they can comfortably see and putting too much value in the results? This board used to be much better than that, helping us rookie weather enthusiasts to learn what potential busts to look for in the forecasts, IMHO. I'm thinking of Lookout et al

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Ok and this weekends " event " has been modeled on the GGEM and GFS for well over a week and for a while it robust .

I don't think it's been modeled well over a week that just sounds silly considering it's still pretty far out. GGEM/GFS combo isn't exactly the powerhouse either.

 

My point was seeing signal that looks like the above on both the GFS and Euro means, and what you saw when it was 300+ hours out, it's not just going to go away. It's a stronger signal for a storm.This ice threat just kinda showed up from some overruning precip and a wedge that just happened to trend stronger. I remember when we were posting on how strong the wedge was trending on the GFS, it didn't used to be that cold.

 

If this ice storm were to go away it wouldn't surprise me, but if the storm on Day 10 goes away it would indeed shock the hell out of me. Too strong of a signal. Whether or not it's hugging the coast, way off the coast, or if we have enough cold remains to be seen, but it's going to be there. I think a storm thread should be started for this potential ice event since this is being discussed play by play anyway just in the "pattern" thread but I digress.

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I don't think it's been modeled well over a week that just sounds silly considering it's still pretty far out. GGEM/GFS combo isn't exactly the powerhouse either.

My point was seeing signal that looks like the above on both the GFS and Euro means, and what you saw when it was 300+ hours out, it's not just going to go away. It's a stronger signal for a storm.This ice threat just kinda showed up from some overruning precip and a wedge that just happened to trend stronger. I remember when we were posting on how strong the wedge was trending on the GFS, it didn't used to be that cold.

If this ice storm were to go away it wouldn't surprise me, but if the storm on Day 10 goes away it would indeed shock the hell out of me. Too strong of a signal. Whether or not it's hugging the coast, way off the coast, or if we have enough cold remains to be seen, but it's going to be there. I think a storm thread should be started for this potential ice event since this is being discussed play by play anyway just in the "pattern" thread but I digress.

It has been they kept up with on another board it's right about 8 days.

I see your point I just think it's funny now we are already looking at a ten day storm when the models can't even agree on a day 5 storm.

I agree there is a strong signal but we have seen strong signals muted in the past

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The Para still has some light icing for N NC. Not a lot of precip, though. If there was more precip, I would guess it would be colder. Not a huge surprise considering the old GFS decided to go bone dry at 18z.

I'm not going to pretend that this is not a bad sign, but I'm still in.

LOL, going down with the ship on this one...I still wouldn't be surprised to see this come back in the next couple of days. The day 10 look is a pipe dream at this point. I have been lectured since early Dec that the day 10 look on the models are wrong and now it shows a nice setup and we are supposed to believe that. :-)

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Yikes...

 

 So, that cold 10 day EPS map (solid +PNA) is as of 1/16. Note that today's EPS MJO forecast maintains the path to the COD, including the coldest of all on average, COD 8, ~1/15-6. Coincidence? I don't know, but it wouldn't at all be surprising if that period is cold dominated based on the quite large sample size suggesting that 3/4 of the days in Jan at ATL when phase 8 is 0.5-1.25 amplitude were colder than normal.

 

 Updated EPS MJO fcast (JMA ens. is pretty similar): It is almost exactly where I'd choose if I could for the period starting ~1/13: lots of cold domination potential based on 40 Jan.'s of stats for in/near the COD phases 7-8-1-2.

 

post-882-0-95400600-1420584004_thumb.gif

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