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January Pattern and Storm Discussion II


Cold Rain

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What happened to all our strat warming/-AO/Blocking/MJO Phase 8-1-2/Active STJ stuff?

yea we keep saying next week and then next week and then next week, well we are running out of weeks----here comes spring.  sure was hoping the next weekend storm would hold, sure would have mended a  lot of folks who were hoping for a nice snow storm and the last two events were really nothing in my neck of the woods.

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Cautiously optimistic as we head in to the first week of February...  While high latitude blocking does not appear favorable for sustaining the cold at over the eastern US, height rises extending from the inter-mountain west to the northwest territories around day 7 support toughness east of the MS.  12z ECMWF is pretty close to a storm ivo the EC at day 8 (and another at day 10), axis is about 3-400 miles too far East this run, but a phasing scenario is clearly shown around 180hrs, and potent sw pos tilt as it crosses the lower MS river valley @ 192.  We are going to have to wait until then, energy in the sw will likely be ejecting in its entirety as a very strong lp forms over the GL and heads up to the southern tip of Greenland mid week.  After that, maybe a weak clipper through the OH Valley and MA/NE, then comes our chance of seeing a more meaningful event, or two.  

 

12z H5 @ 168

12zeuro500mbHeightAnomalyNA168.gif

 

compared to 0z ens mean @ 168

00zECMWFENS500mbHeightAnomalyNA168.gif

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The 18Z NAM is close to cutting off at 60.  I also *think* the 12Z JMA is still cutting off, but I can't be sure because the images are acting weird when I try to look at them.  I don't think this is a done deal yet.  It may be that the energy in question is not getting sampled well enough currently.  Or it may be that I'm on crack.  Whichever the case, I don't think it's over yet.

 

post-987-0-95308100-1359235201_thumb.gif

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Since it's relatively calm in here, I'm going to ask a bunch of Newbie Dumba** questions.... "Closing off" would make this an ULL a storm of energy all by itself to watch, correct? (Cold Rain is the King) And if it "phases" that means it's getting sucked in by the northern JS and no go at all for the SE?(Cold Rain is the King) Am I anywhere near being close to right about anything I've said.

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Thanks man. That's what I was seeing, but it looked progressive to me, then in the next frame, it was cut off way back there in the SW.

 

Actually, now that you mention it, how do we get from this at 72 hours to this at 96 hours?

 

Maybe there is something funky going on.

EDIT: Ugh, apparently it didn't update past 72 hours and that hour 96 is yesterday's 12z run (looking at the dates).  I think we lost the JMA then.

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I disagree. Looks like a heavy rain event w/ some severe weather coming... perhaps focused up the spine or west.

 

 I think Wilkes is very likely going to be correct and appreciate his forecast for this event. The trend is not good right now for wintry and, therefore, there's no reason for me to think that the Euro is going to go back to those two runs (and especially that one historic run). That one run was a dream and fun to see. Most knew that was very likely a blip. So, until if/when the model consensus reverses and suddenly goes back to that Miller Aish type of scenario, I'm going with Wilkes here and a break from the wintry weather of late.

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 I think Wilkes is very likely going to be correct and appreciate his forecast for this event. The trend is not good right now for wintry and, therefore, there's no reason for me to think that the Euro is going to go back to those two runs (and especially that one historic run). That one run was a dream and fun to see. Most knew that was very likely a blip. So, until if/when the model consensus reverses and suddenly goes back to that Miller Aish type of scenario, I'm going with Wilkes here and a break from the wintry weather of late.

Unless we see a favorable trend back toward the cut-off idea within the next 24 hours, I am going to write this one off as well.

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Unless we see a favorable trend back toward the cut-off idea within the next 24 hours, I am going to write this one off as well.

 

The good news is that we have a couple other systems to watch in the next 8-12 days.  Hopefully, we can strike gold at least once.

 

It would be nice to get something during the first half of February before climo and the higher sun angle begin to work against us.

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 I think Wilkes is very likely going to be correct and appreciate his forecast for this event. The trend is not good right now for wintry and, therefore, there's no reason for me to think that the Euro is going to go back to those two runs (and especially that one historic run). That one run was a dream and fun to see. Most knew that was very likely a blip. So, until if/when the model consensus reverses and suddenly goes back to that Miller Aish type of scenario, I'm going with Wilkes here and a break from the wintry weather of late.

That would be the smart choice for sure.  No model is really showing anything wintry for the system next week, at this time.  I'll give it till 12Z or so tomorrow and then throw in the towel too.  Anyway, like Franklin and others have said, the LR looks pretty good.

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Since it's relatively calm in here, I'm going to ask a bunch of Newbie Dumba** questions.... "Closing off" would make this an ULL a storm of energy all by itself to watch, correct? (Cold Rain is the King) And if it "phases" that means it's getting sucked in by the northern JS and no go at all for the SE?(Cold Rain is the King) Am I anywhere near being close to right about anything I've said.

For this system, what you said is pretty much correct. :)
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That would be the smart choice for sure.  No model is really showing anything wintry for the system next week, at this time.  I'll give it till 12Z or so tomorrow and then throw in the towel too.  Anyway, like Franklin and others have said, the LR looks pretty good.

That would be the smart choice for sure.  No model is really showing anything wintry for the system next week, at this time.  I'll give it till 12Z or so tomorrow and then throw in the towel too.  Anyway, like Franklin and others have said, the LR looks pretty good.

It looks like we are going to repeat what we just went through pattern wise starting next Thursday so hopefully we get another bowling ball low out west or a repeat of yesterday. Unfortunately I don't see a way to get a big dog without -NAO. The NAO has essentially been positive since mid-December, and it appears it will stay that way so we will get these storms on Acme rockets just flying by us. The positive PNA with the PV sagging to central/eastern Canada could give us chances for small events. Hopefully someone corrects if I am wrong about not seeing the potential for a big dog.

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It looks like we are going to repeat what we just went through pattern wise starting next Thursday so hopefully we get another bowling ball low out west or a repeat of yesterday. Unfortunately I don't see a way to get a big dog without -NAO. The NAO has essentially been positive since mid-December, and it appears it will stay that way so we will get these storms on Acme rockets just flying by us. The positive PNA with the PV sagging to central/eastern Canada could give us chances for small events. Hopefully someone corrects if I am wrong about not seeing the potential for a big dog.

Yeah, the odds favor smaller or even potentially some moderate events. HKY mentioned it too, and like you said, without a good -NAO west, we'd need a really well-timed phasing scenario to get the big dog, or something like the Euro showed the other day (was that a phase too? I don't remember now). It could happen, but the odds are lower, as you point out. We might get lucky, though. Oh yeah, and GO PACK! :)

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For this system, what you said is pretty much correct. :)

Well, I'm with you CR, I still think I'll give it until tomorrow night late, and maybe even Monday night late.  And if I'm right, and there is a late week/weekend threat,  I want the thread before Wilks can gleep it, lol.  There is something about this period that won't let me go yet.  I'm desperate to sic the Moles on a storm :)

 Oh, yeah, beware  GTech the second time through.  I think the light is coming on in the Frosh.    T

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Since it's relatively calm in here, I'm going to ask a bunch of Newbie Dumba** questions.... "Closing off" would make this an ULL a storm of energy all by itself to watch, correct? (Cold Rain is the King) And if it "phases" that means it's getting sucked in by the northern JS and no go at all for the SE?(Cold Rain is the King) Am I anywhere near being close to right about anything I've said.

  Well, you'd like to see a cut off Ull hanging back in the west and spitting parts out into the southern stream.  Then you like to see an impulse riding down the northern stream trough.  Then you'd like to see the two phase deep in the south, so as to amp up the energy and give you a snow explosion, over us, where it is most important, lol.  T

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