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December 2022


dmillz25
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Based on 144hr, it looks like the UK is in the CMC/ICON camp with high heights in Ontario mid-week and the follow up ULL moving eastward towards the lakes instead of diving south through the US.

The 12z EC and 0z GFS are in the other camp, although both have a significant portion of ensemble members in the other camp.

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Some of the set-ups the GFS is coming up with are incredibly dynamic and a little too perfect to believe at this juncture from such an inconsistent model. The lack of a solid 50/50 low for the 22nd-23rd is noted. But I love the antecedent and incoming high pressure locations nearly perfect. The zipper low on the 22nd kind of functions as the 50/50 but it's highly uncertain whether or not that would work out. The second storm is a classic Miller A but starts so far south. Usually those storms do not make it all the way up the coast. So there are lots of variables to keep an eye on with a sense that sooner or later something big could happen.

WX/PT

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8 minutes ago, winterwx21 said:

Euro just came in warmer. Rain for most of us. You have to go well to the NW to see the snow on this run, similar to today's storm. Definitely not what we wanted to see tonight with these rainy runs (except for GFS), considering these things tend to trend NW as they get closer. 

It’s still well early enough for corrections. I did like seeing the GFS east. I hope they don’t all go to a cutter and stay there - we have seen that happen a lot.

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3 hours ago, winterwx21 said:

Euro just came in warmer. Rain for most of us. You have to go well to the NW to see the snow on this run, similar to today's storm. Definitely not what we wanted to see tonight with these rainy runs (except for GFS), considering these things tend to trend NW as they get closer. 

Euro over amplification bias in play. Latest GFS is more east. 

I like where we're at right now 

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4 hours ago, winterwx21 said:

Euro just came in warmer. Rain for most of us. You have to go well to the NW to see the snow on this run, similar to today's storm. Definitely not what we wanted to see tonight with these rainy runs (except for GFS), considering these things tend to trend NW as they get closer. 

Not all of them trend northwest 

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The storm track coming right over or just west of NYC is a concern since that warm pool and ridge east of New England is continuing to be a factor. The PNA actually is pretty good with a nice ridge out West.  So this looks more like and issue with the ridge to our east causing the low to come too far west for big snows near the coast.

90F2A645-4519-48BA-A998-4624707D70FC.thumb.png.5ebecfe9c54dde18d841a5be21a6c735.png


9598C4DB-3B42-47F3-A146-2A5692BEAE76.thumb.png.c31834beb4c81f4af0ed9530cd73bc3b.png

 

26800F3B-C537-442F-88E6-A5ACBFEE21C2.thumb.jpeg.971128e95d4853a0fe3e0a6cb82d10f7.jpeg

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7 hours ago, eduggs said:

If we get this look within 3 days, we can talk about a possible major snowstorm up and down the east coast. No complaints from me on this run.

Yes, this could be the very unusual Carolinas to Maine snowstorm, haven't seen anything like this in years if it plays out to maximum potential.

 

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5 minutes ago, bluewave said:

The storm track coming right over or just west of NYC is a concern since that warm pool and ridge east of New England is continuing to be a factor. The PNA actually is pretty good with a nice ridge out West.  So this looks more like and issue with the ridge to our east causing the low to come too far west for big snows near the coast.

90F2A645-4519-48BA-A998-4624707D70FC.thumb.png.5ebecfe9c54dde18d841a5be21a6c735.png


9598C4DB-3B42-47F3-A146-2A5692BEAE76.thumb.png.c31834beb4c81f4af0ed9530cd73bc3b.png

 

26800F3B-C537-442F-88E6-A5ACBFEE21C2.thumb.jpeg.971128e95d4853a0fe3e0a6cb82d10f7.jpeg

We shall see

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5 minutes ago, bluewave said:

The storm track coming right over or just west of NYC is a concern since that warm pool and ridge east of New England is continuing to be a factor. The PNA actually is pretty good with a nice ridge out West.  So this looks more like and issue with the ridge to our east causing the low to come too far west for big snows near the coast.

90F2A645-4519-48BA-A998-4624707D70FC.thumb.png.5ebecfe9c54dde18d841a5be21a6c735.png


9598C4DB-3B42-47F3-A146-2A5692BEAE76.thumb.png.c31834beb4c81f4af0ed9530cd73bc3b.png

A55E6C1A-4E11-4D38-BE88-37A548E17C82.thumb.png.b9fffce9c2ff77a7ecf645f596fc0f4b.png

26800F3B-C537-442F-88E6-A5ACBFEE21C2.thumb.jpeg.971128e95d4853a0fe3e0a6cb82d10f7.jpeg

So this is an issue of poor spacing with the highs?  That's unfortunate, since the Pacific often gets mentioned as the main factor, but even when it's good, then this happens.  This does remind me of the 80s-early 90s pattern when storms like this were very frequent.  We even considered this the "normal" pattern back then.

 

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Just now, bluewave said:

Yeah, the GEPS usually has a cold bias beyond a few days and the storm track is even further west than the EPS clusters and means.

BF645D2A-60DE-4325-A287-FAA6481A449C.thumb.png.72e2e66b371a141f1e8df9e041e52eeb.png

 

Sounds like you think it'll track inland. Certainly not discounting that given Atlantic warm pool. 

It's likely why we've had to wait til Jan/Feb to get a significant snow event at the coast lately 

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3 minutes ago, SnoSki14 said:

Sounds like you think it'll track inland. Certainly not discounting that given Atlantic warm pool. 

It's likely why we've had to wait til Jan/Feb to get a significant snow event at the coast lately 

Yeah we usually get our first significant snowfall around Jan 20th now.  It's usually between January 20 - March 20 for our significant snowfall interval so a good two month period.  Not the minor 1-3 kind of stuff that can happen basically anytime between November and April.

 

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3 minutes ago, SnoSki14 said:

Sounds like you think it'll track inland. Certainly not discounting that given Atlantic warm pool. 

It's likely why we've had to wait til Jan/Feb to get a significant snow event at the coast lately 

Sounds like you are giving up over 1 model suite. Come on.

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29 minutes ago, bluewave said:

The storm track coming right over or just west of NYC is a concern since that warm pool and ridge east of New England is continuing to be a factor. The PNA actually is pretty good with a nice ridge out West.  So this looks more like and issue with the ridge to our east causing the low to come too far west for big snows near the coast.

90F2A645-4519-48BA-A998-4624707D70FC.thumb.png.5ebecfe9c54dde18d841a5be21a6c735.png


9598C4DB-3B42-47F3-A146-2A5692BEAE76.thumb.png.c31834beb4c81f4af0ed9530cd73bc3b.png

 

26800F3B-C537-442F-88E6-A5ACBFEE21C2.thumb.jpeg.971128e95d4853a0fe3e0a6cb82d10f7.jpeg

The storm signal not track is the most important takeaway right now but hopefully we have enough of a block in place to force a further east track. But it definitely makes sense for the jet fuel water temps offshore to try to pump a ridge east of the storm and force a westward track. On the other hand, maybe we can get the “convective feedback” to come in handy for once lol. 

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