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Pattern December Dud đź‘€

I see you, Boston. Getting their last-minute trend as expected.
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I was literally at this exact location a week ago.

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I saw a lot of people up there pooping on the NAM too.

This is another classic case of advancing mid-level warm advection overperforming vs model forecasts and the NAM being the closest to sniffing it out correctly, as it often does around here in CAD/overrunning events.

I can certainly think of other cases around here like Jan 28-29 2014, Jan 6-7 2017, Dec 2017, & Feb 2020 (GA) where we’ve seen similar short term model busts for the same dynamical reasons.

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I saw a lot of people up there pooping on the NAM too.

This is another classic case of advancing mid-level warm advection overperforming vs model forecasts and the NAM being the closest to sniffing it out correctly, as it often does around here in CAD/overrunning events.

I can certainly think of other cases around here like Jan 28-29 2014, Jan 6-7 2017, Dec 2017, & Feb 2020 (GA) where we’ve seen similar short term model busts for the same dynamical reasons.

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Yep, this is the NAM's wheelhouse (usually). Even in our light event earlier in the month, the NAM did best with this. As you've said, there have been many, many examples of this including some more minor events as well (I can think of one that happened earlier in January 2014 I believe - just a light snow event but still overperformed relative to most guidance).
 
Are snow showers going to continue through out the day or is it over? Thinking about making a day trip up to Boone today.
Probably over now:
Today
A chance of snow showers, mainly before 8am. Partly sunny, with a high near 29. Northwest wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Tonight
Partly cloudy, with a low around 13. Northwest wind 5 to 9 mph.
Sunday
Sunny, with a high near 34. Northwest wind around 5 mph becoming calm in the morning.
Sunday Night
Mostly clear, with a low around 17. Calm wind.
Monday
Sunny, with a high near 37. Calm wind becoming south around 6 mph in the morning.

I would go straight up to Beech Mountain. Grab something to eat and play in the snow. The Sledding Hill is a good place to go. It's free.
 
The sneaky little Christmas Eve morning system isn't getting enough attention IMO. I won't take much for the attending precip shield to extend a bit further NW bringing a raw light icing and sleet event into NE Ga. (hometown stretch) but mainly through the central Carolinas.

It's not much, but something to keep an eye on while we wait for the January deep freeze.

If nothing else, it'll feel like Christmas for a change.
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Yeah i have to agree with most here, we have to watch this system around Christmas Eve.


Even without much on the precip fields on some guidance, you still have to be weary of freezing drizzle here with solid warm advection above the cad dome and temps within striking distance of freezing over the Piedmont. The fact that todays storm over performed a bit in the mid Atlantic makes me feel a little better about this potential threat as the air mass upstream may be a bit colder.

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RGEM has also been trending towards a more consolidated wave to spark the overrunning.
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With such a cold air mass having been deposited in place, a relatively strong in-situ / hybrid CAD could easily support some FZRA/FZDZ especially deeper into the wedge despite the surface high somewhat pulling out.
 
RGEM has also been trending towards a more consolidated wave to spark the overrunning.
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With such a cold air mass having been deposited in place, a relatively strong in-situ / hybrid CAD could easily support some FZRA/FZDZ especially deeper into the wedge despite the surface high somewhat pulling out.
Bar Harbor in Maine is cookin’ look at that snow!!!
 
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