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Wintry ❄The Christmas Miracle❄(12-24/12-25)

I think it was the first to pick up on that first snow we got last year. However that's the only time it's been right lol

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I mean it has some some support in the HRRR. HRRR isn't as widespread or heavy with it as the RAP, but maybe these models are picking up on the backend energy riding down the trough being more amped. With how cold and deep this air is, it won't take much to set the spark.
 
I don’t know about you guys, but I am stoked as hell About the weather we are about to have over the next 48 hours, of course I am hoping for the best in regards to the tornado threat but as far as the snow threat, I am pulling for a couple flurries down here in the armpit of hell. 00z HRRR is going to be interesting.
 
If the RGEM/HRRR is to be believed, this could be one of those scenarios where the DGZ is so low and relatively shallow that you could be seeing snow outside while seeing no returns on radar over your home because it's falling so low in the atmosphere.
That was how it was here on November 30th... nothing on radar and moderate snow outside!

Thats what I was about to say, the November 30th event was solid snow showers for straight six hours, when it showed up on radar is when it started to cover the deck, but most of the time it wasn’t on radar. It was the same for the next two flurry events so far this month.
 
If the RGEM/HRRR is to be believed, this could be one of those scenarios where the DGZ is so low and relatively shallow that you could be seeing snow outside while seeing no returns on radar over your home because it's falling so low in the atmosphere.

Like a ski trip at 10,000 feet


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We do have to remember though. The HRRR and RAP was showing sleet last week with our rainstorm we got. That did not happen at all.

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We do have to remember though. The HRRR and RAP was showing sleet last week with our rainstorm we got. That did not happen at all.

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Whole different setup tho, the hrrr has done well actually with precip associated with UL troughs, for example this setup which the NAMS struggled to show until under 24 hours 09FB3178-B27F-4044-A3D2-7EBD4838F736.png
 
What's interesting is that none of the models had shown the area of snow showers over eastern Kansas at this moment that's associated with the energy near the base of the trough. This is a good example of the models not being to pick up on a shallow layer of moisture. Even the most recent NAM and HRRR runs, they're not seeing anything in that area despite the fact that there are returns showing up on radar.
 
What's interesting is that none of the models had shown the area of snow showers over eastern Kansas at this moment that's associated with the energy near the base of the trough. This is a good example of the models not being to pick up on a shallow layer of moisture. Even the most recent NAM and HRRR runs, they're not seeing anything in that area despite the fact that there are returns showing up on radar.

Yeah my friend @MattLabenzwx has been getting snow from this, even tho the mesos showed next to nothing
 
I am afraid the air will be so dry that it may just end up virga for most folks outside the mountains. However with real cold air coming in and a chance at flurries on Christmas Day, this will be a rare occurrence for us and anything we see will be special
 
We’ll to be fair this solution has sneaked into modeling, the look before would have been a no go and a widely scattered flurry at best with the best N/S energy near the GL, and not a ULL in Kentucky/Tennessee
This ^. I said a few days ago (& have repeatedly) that if you want snow from upper lows it needs to pass over you or to your south, we’ve trended that way synoptically in a big way which makes the prospects of flurries more legit. What we had before with the upper low moving over the OH river Valley and KY wouldn’t get the job done
 
I think it was the first to pick up on that first snow we got last year. However that's the only time it's been right lol

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Much different set up, but it also did well with the April 2, 2019 event with the band of 1-3 inch totals across NE York County, SC and into SE Union County,NC
 
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