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Mid to Long Range Discussion ~ 2022


buckeyefan1
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2 hours ago, Awesomesauce81 said:

I don't think I've ever seen the GFS this consistent with a fantasy storm this far out, especially  at the same timeframe. It's definitely caught my attention.

 Good point though since we're talking 11 days out (well out in almost unforecastable fantasyland) a lot could and probably will change as you know. But fwiw the 12Z EPS mean (and some other recent ensembles to an extent) has a textbook setup for a rare SE winter storm of some form near 12/26 that includes the coast because it is so cold. The mean 500 mb trough is centered to the west allowing for a moist WSW flow on top of the very cold air forecasted to be already in place. The mean qpf is most concentrated from the FL panhandle through the eastern sections of GA, SC, and GA. So, still just a far out fantasy, but rather interesting.

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8 minutes ago, BornAgain13 said:

One thing is for sure, I will definitely be staying up later to watch the 0z runs. I'll sacrifice losing a little sleep tracking this lol

Sent from my SM-N981U using Tapatalk
 

I'm gonna weenie tag this but I also will be joining you because it's piqued my interest.

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PNA ridge and it's effect on the angle of the jet will largely decide how far the wave will dig. Need the jet to be aligned more out of the NNW than it is on the Euro. There's certainly more pieces involved like the speed of the southern piece of energy, and the confluence/blocking over the NE not allowing a weakness for it to slide east, but the PNA ridge certainly feels like the most important ingredient.

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19 minutes ago, SnowDawg said:

PNA ridge and it's effect on the angle of the jet will largely decide how far the wave will dig. Need the jet to be aligned more out of the NNW than it is on the Euro. There's certainly more pieces involved like the speed of the southern piece of energy, and the confluence/blocking over the NE not allowing a weakness for it to slide east, but the PNA ridge certainly feels like the most important ingredient.

The best part to this is it's been trending better and better as we approach the time frame, which makes me super excited. Good point out though!

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From the Afternoon RAH disco:

Long Term:
The forecast really gets interesting during the late week
period(late Wednesday night through Friday) with high forecast
uncertainty wrt to just how much amplification of the cold upper
trough will occur over the central and eastern US via additional
energy/northern stream energy diving south out of SW Canada.  If
some of the stronger/deeper H5 height patterns verify, a developing
coastal storm tracking along the SE Coast, coupled with the
antecedent cP airmass in place, could support the potential for some
frozen precip across the climatologically favored areas of the NW
Piedmont.

Evaluation of the latest 00z/15 Grand Ensemble guidance(100 ensemble
members consisting of the CMC, EC, and GEFS members) indicates that
~20 percent of the combined members show measurable snow over the
northern Piedmont, with a little over half of those snowy members
indicating light snow amounts of 1 inch or less. With that said,
these probabilities and related p-type forecast and amounts will
without a doubt fluctuate over the next several days.
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