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Mid to long range discussion- 2025


wncsnow
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0ae35003e0d279a32cd42b2b644d3eb6.jpg
That ridge orientation is just not going to do the trick. It’s fine that it’s close to the Rockies but it can’t be oriented like that. We really need it to tilt more vertically. I would assume it’s the pacific jet tilting it but someone more intelligent would have to confirm.


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The models are still vacillating  wildly, this still a week out but at least for GA, very few if any ensemble members show a "big dog:" snow any more. Also, the idea of super cold air is also fading fast. Color me very skeptical.

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4 minutes ago, Cheeznado said:

The models are still vacillating  wildly, this still a week out but at least for GA, very few if any ensemble members show a "big dog:" snow any more. Also, the idea of super cold air is also fading fast. Color me very skeptical.

you and me both. It is almost as if we have seen this movie before.

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12Z CMC has similar split flow to 12Z Icon leading to snow Gulf coast by Jan 9th like on Icon and GFS (CMC and Icon didn’t have this favorable of a split flow at 0Z):

IMG_1456.thumb.png.fca4f14e3a2b4b2d793c854fe55d203b.png
 

 

 

IMG_1457.png

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47 minutes ago, olafminesaw said:

When I said I wanted a southern slider for Christmas this is not what I meant...

It’s all just digital at this point. Nobody has anything yet.

 12Z GEFS through Jan 11th: more than recent runs N GA to NW 2/3 of NC:

IMG_1463.thumb.png.4c031d7358fa494893ed81c501d137f9.png

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IMG_3711.thumb.png.22779bc742e1cd50b5c0b5cfe2ee1783.pngIMG_3710.thumb.png.216d084d34af6347f70702af50fca63f.pngPretty substantial increase in QPF for the 10th/11th on the GEFS. Let's see if we can get this to continue trending this direction. Also fwiw, the Euro made a big jump towards the GFS with the handling of the SW energy.

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11 minutes ago, SnowDawg said:

IMG_3711.thumb.png.22779bc742e1cd50b5c0b5cfe2ee1783.pngIMG_3710.thumb.png.216d084d34af6347f70702af50fca63f.pngPretty substantial increase in QPF for the 10th/11th on the GEFS. Let's see if we can get this to continue trending this direction. Also fwiw, the Euro made a big jump towards the GFS with the handling of the SW energy.

Can you show what you're seeing on the H5 between 0z and 12z. Seemed relatively similar to me, but I struggle when I get away from surface maps

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-12Z UKMET has no split flow and thus no wintry precip in SE

-12Z Euro some changes but it’s fairly similar to last 2 runs in not having much wintry precip in GA/SC/NC outside of mountains through 360:

IMG_1465.thumb.png.5bccd61cc38cc4b6c4dd1e1cf1021d3b.png
 

 12Z Euro similar to 12Z UKMET still no H5 split flow providing moisture unlike Icon and CMC.

 

12Z Euro similar to UKMET has all H5 flow down to the Gulf coast at crucial time we’ve been following from WNW to W (dry)

IMG_1467.thumb.png.2d3f118e9c68807a12a33aaaa0883ab1.png

 

But 12Z CMC (like 12Z Icon) has dry WNW to W H5 flow only well to the north (still supplying the cold) while having moist WSW flow Gulf to Deep South (aka split flow) that flows over low level cold and thus wintry precip there:

IMG_1466.thumb.png.3839cbaaaab19addbb9013ed7a9d8c0a.png

 

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22 minutes ago, olafminesaw said:

Can you show what you're seeing on the H5 between 0z and 12z. Seemed relatively similar to me, but I struggle when I get away from surface maps

So looking at the 500mbar vorticity maps so we can see our pieces of energy, notice how unlike at 0z last night the Euro is not taking that big SW cutoff out into the pacific. At the same time our northern energy is digging further SW and attempting to phase. It ultimately fails, but it's a step in the right direction. (0z followed by new 12z)IMG_3713.thumb.png.ecaa7ded81983ac865dca040c702a037.pngIMG_3712.thumb.png.0e7da6187646100c2a4dfee1f8de1aa2.png

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12Z EPS snow through 1/11: similar to slight decrease

 This was 0Z through Jan 11th:

IMG_1471.thumb.png.3645437873e2f920c2cd27779699a804.png


Comparing the above map to the new run (12Z) below through Jan 11th shows similar in some places and decrease in others:

IMG_1470.thumb.png.5e036076314fb74292a507d9e7941639.png
 

Full new (12Z) run: slight increase N GA/much of SC meaning an increase after Jan 11th there while fairly similar overall NC:

IMG_1472.thumb.png.db21d60d1131d3c1b57eec0849874b4b.png

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1 hour ago, Awesomesauce81 said:

I'm keeping an eye on it but I prefer cold rain if it ain't snow lol

 

 No need to worry. Our area will most likely get either nothing or just a trace no matter what the wintry form. 150 years of weather history tells me that getting measurable wintry here is typically very difficult. The models sometimes tease us and more often than not end up as nothing.

 More recently, we’ve not even had a T of wintry in 7 years (longest wintry drought at least back to 1880s).

 Measurable since 1990: 3/93 light snow at end (from “Storm of Century”), 2/96 (light snow from upper low), 2/10 (rain changed to snow at end), 1/14 (light ZR and IP), and the big one, 1/18 (ZR, IP, SN). So, 5 times in 34 winters or once ever 7 winters since 90-91.

 A trace would be a reasonable goal with only the HOPE, not the expectation, of more. I’m actually not expecting anything per normalcy. But that doesn’t mean I don’t hope because at some point it will finally happen again.

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