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February Medium/Long Range Thread


stormtracker
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7 minutes ago, TSSN+ said:

Ya there was also a massive signal for this event tomorrow showing 8” plus from VA to the northeast. Hard to believe till I see it. 

This would be a different kind of setup. Not saying anything is a sure bet, of course...but this time there would be good blocking, from what I understand.

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Storm on the 20th starting to consistently show up.  Cold just close by for the lowlanders.  Hopefully that gets better.  N and W get shellacked on the 6z GFS.  Lot of precip.  Verbatim it would be painful for the cities...thermals are just west.
This storm is happening...based on seasonal trends congrats Chester

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5 hours ago, TSSN+ said:

Ya there was also a massive signal for this event tomorrow showing 8” plus from VA to the northeast. Hard to believe till I see it. 

Yeah but we will have a much better upper level setup this time around.

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Hey @psuhoffman how real is the risk of the SER this go around? To my amateur eyes that may be the only way this fails (or at least...doesn't snow as much as it could have). A post from the NYC forum:

1 hour ago, bluewave said:

Yeah, the risk around the 20th is the -AO linking up with the Southeast Ridge again. This would result in the low hugging the coast. So the inland regions could really cash in while the coast gets another mixed precipitation event. Still too early to be sure since it’s outside the model reliable range.

Just about every other February -AO in the -4 to -5 range had a KU within about a week or so of the occurrence. Like in February 2021, 2010, 1978, and 1969. So it would be very disappointing if we get 3 -AO link ups with the Southeast Ridge.

I posted the other day how this has become a frequent occurrence in the 2020s. The last -4 AO link up was only a little over 2 years ago in December 2022. Prior to that we had one near -4 in December 2012. Then before that it was in January 1998. So this has become a much more frequent occurrence. Hopefully, we can find a way to buck the trend around the 20th to avoid the cutter, hugger, and suppressed Southern Stream pattern we have been in since 18-19. 
 

2 Southeast Ridge link ups in near term

IMG_3002.thumb.png.659a4f12534857656b7e709aab5becf3.png
 

IMG_3003.thumb.png.344f73cf3fc7f8f27fb18a73a8555d1b.png

Third one possible around the 20th

IMG_3004.thumb.png.9de24659416c7f9f1b96eb397d778795.png

 

IMG_3005.thumb.png.31fc6080c089033ee73cfb1187f961e1.png

 

 

 

Now on the ensembles you don't see that linkage as of now...

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30 minutes ago, Maestrobjwa said:

Hey @psuhoffman how real is the risk of the SER this go around? To my amtwur eyes that may be the only way this fails (or at least...doesn't snow as much as it could have). A post from the NYC forum:

Now on the ensembles you don't see that linkage as of now...

Well let’s be clear what we’re talking about. There is always some ridging in between waves. That’s basic wave physics. Trough ridge trough. What he is calling the SER linkup is just the heights/ridges in between the troughs getting too high. In other words too warm. It simply a function of it being warmer. What 20 years ago would have been white or a shade of blue is now red on that plot. What that could mean on the surface is as the wave/storm approaches the antecedent airmass is now 35 instead of 30.  That resists the WAA ahead of the wave less and pushes the thermal boundary NW and now 95 is on the rain side instead of snow.  
 

But all that is a fancy way of saying “is it getting too warm for that setup to work anymore?”  We could debate how much of that warmer issue is from warm Gulf of Mexico and Atlantic SSTs or “you know what” or a decade pacific cycle but the question remains “in the current thermal base state does that work”. 
 

My answer is it better because those plots show exactly how we get 90% of our big snowstorms. Again progressive waves are not going to replace that part of our snow climo.  Baltimore is not getting a 30 or 40” winter or a 20” hecs from a epo progressive wave pattern. That isn’t the path to our big snowy winters or storms. 
 

Yes it’s concerning this linkage that he is talking about keeps happening for the reason above. We NEED that to work for us. So I’m going to keep beating my head into this wall and praying blocking starts working again until it’s been proven 100% if can’t and at that point I’ll put my cap on the wall, hang up my coat and bid you all a fond farewell and check out for the last time and simply wait a few years until I can move to Vermont where blocking has still been working lately!  Because in the end I don’t really do this for a 20” winter or a 5” snow. I track to try to get those 50” wingers and 20” snows we historically get a couple times a decade. And among the way I’ll take those 5” scraps as consolation. But if we can’t get the real goods anymore this will just be frustrating to me and for my health I’ll stop doing it and move somewhere that can still get what I want. 

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