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Wintry January 23rd-27th 2026

I see no way that it will get as cold in ATL as is on this model. There’s got to be a problem with a GFS cold bias. How do they have much of ATL metro plunging to <0 with no snow or sleetcover? This looks way overdone. And did you see that run with all time record cold levels being surpassed?
was more of a “look at this crazy thing” post. I think there’s some merit to NC getting near 0 with rad cooling in the colder arctic airmass that settles in on Monday night with snowpack. Perhaps GFS sees ZR on the ground for ATL and takes it lunar
 
Canadian FRAM was 0.5-0.75” of ZR. The RDPS was up to 3” of sleet and anywhere from 0.3”-0.75” of FRAM ZR and we were only at 7AM at the end of it a run. I hate to speak in absolutes like this but the writing is all but on the wall for the Piedmont, upstate, and NE Georgia. We might be able to squeak out some initial front end snow, but it’s going to quickly switch to sleet and then ZR. I’m expecting probably 8-12 hours of sleet and easily 24 hours of ZR. I’ll make my first call map tomorrow on totals but my preliminary estimates as of tonight would be 2-5” of sleet and 0.5-1.25” of ZR with the highest of those totals along and north of 85
 
You may never see modeled temps like this again at this range for the Carolinas
View attachment 187329

I’ve lived in central NC for about 85% of my life (41) and I’m not sure I’ve ever seen it go negative true temp. 1 or 2 with wind chill of -10 on a snowpack after 96, yup. But can’t remember negative values.


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Looks like all the models are coming to a consensus except for the euro. The NWS even said this euro looks like an outlier so…
Yeah FFC mentioned the Euro on their afternoon discussion, see below:

This has been a tough system to forecast, but we want to talk a bit
about the "northward shift" and why we look at ensembles. We have
been looking closely at the Euro model which has caused this
northward shift thinking. If you look at just the deterministic then
sure it shows a northward shift but if you dive deeper into the Euro
ensembles, this deterministic run is a bit of an outlier. This is
why we have not bought into the northward shift completely at this
time. We would like to see more consistency between model runs
especially with the sampled low pressure system before shifting our
thinking.
 
1z NBM FRAM.

Quarter to half inch ice totals are a decent bet for many

View attachment 187336
I’ll be honest, this is probably the low end IMO. I really don’t see how the upstate, NE Georgia, and central NC don’t end up with totals pushing to at least 0.75” of ice on top of several inches of sleet
 
I see no way that it will get as cold in ATL as is on this model. There’s got to be a problem with a GFS cold bias. How do they have much of ATL metro plunging to <0 with no snow or sleetcover? This looks way overdone. And did you see that run with all time record cold levels being surpassed?
The subzero footprint is where primarily heavy ice accumulations have been forecasted by the model to have occurred. I suppose enough ice accretion is close enough to snow? Sounding here is -5!
 
The subzero footprint is where primarily heavy ice accumulations have been forecasted by the model to have occurred. I suppose enough ice accretion is close enough to snow? Sounding here is -5!

I was wondering about that too. If that’s what it’s doing, that’s consistent with its strong cold bias due to too much radiational cooling over snowcover. It’s been too cold at night over snowcover for years.
 
Atlanta is due for another 1973 event.
I was in Athens for the 73 ice storm. This would be the second in my life.
No power, no way to go anywhere.. the deafening silence other than the constant... crack..... crash, crack........... crash of treetops and branches falling to the ground day and night.

It was truly surreal
 
While we wait, I have a dumb question. The warm layer depicted by some of the models is very warm, much warmer than your normal CAD ice threat. Could this minimize ice accrual any? Not your normal super cooled raindrops that freeze instantly or no effect whatsoever?
 
While we wait, I have a dumb question. The warm layer depicted by some of the models is very warm, much warmer than your normal CAD ice threat. Could this minimize ice accrual any? Not your normal super cooled raindrops that freeze instantly or no effect whatsoever?
it won't matter if the surface temps are 20 degrees. Once you get in the upper 20s you can start talking about different precipitation
 
it won't matter if the surface temps are 20 degrees. Once you get in the upper 20s you can start talking about different precipitation
Actually you didn't answer my question. Let me clarify, I didn't think it would be different precipitation, I know if would still be zr. But just like wind and precip rate can affect how efficiently ice accrues, I was wondering if warming the raindrops through a much warmer layer would affect the efficiency that it accrues. I figured it wouldn't but just throwing it out there
 
Actually you didn't answer my question. Let me clarify, I didn't think it would be different precipitation, I know if would still be zr. But just like wind and precip rate can affect how efficiently ice accrues, I was wondering if warming the raindrops through a much warmer layer would affect the efficiency that it accrues. I figured it wouldn't but just throwing it out there
You can think of it as a hot and cool wax. If it's hotter it can splash and be thinner when it freezes. If it's colder it can freeze instantly without splashing and build up more. Does that answer your question?
 
Actually you didn't answer my question. Let me clarify, I didn't think it would be different precipitation, I know if would still be zr. But just like wind and precip rate can affect how efficiently ice accrues, I was wondering if warming the raindrops through a much warmer layer would affect the efficiency that it accrues. I figured it wouldn't but just throwing it out there
Yes it would have an effect if your surface temps are marginal, but if they’re around 20F, droplets can quickly fall below freezing at temps that cold.
 

Not a drop of that 0Z UKMET 3-4” qpf in ATL is wintry! The coldest N ATL gets is 36 and the airport only 41! This is while Athens drops to 32, GSP drops to 27 and Charlotte 25. This is with a NE parent sfc high way up at 1041 mb, a very high echelon strength vs similar other CAD setups. It has a surface low pass well to the west in AL. Is this even possible?

So, I may assign myself homework of seeing if I can find a similar setup by looking at old wx maps if I have the time.
 
Not a drop of that 0Z UKMET 3-4” qpf in ATL is wintry! The coldest N ATL gets is 36 and the airport only 41! This is while GSP drops to 27 and Charlotte 25. This is with a NE parent sfc high way up at 1041 mb, a very high echelon strength vs similar other CAD setups.

So, I may assign myself homework of seeing if I can find a similar setup by looking at old wx maps if I have the time.
I noticed the same on the CMC. The wintry precip barley entered the city core. It hits Athens but the airport is fine. Its weird man. Its see what the EURO has to say in a few.
 
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Which model should I root for in southern Illinois.

Probably about to witness my biggest snowstorm ever. (Previous biggest was 10 inches)

Yeah I'm starting to believe this could be historic here too I mean I've already seen people talking about it anyway(even the NWS openly mentioned it in their discussion this morning) and just seeing these models gives it an even higher chance

Not to mention Norman already issued a warning and I've never seen that so far out. Clearly they are seeing it too

Tulsa record is only 14 inches and the only thing I've seen close is when I went to Kansas City last year
 
I’m genuinely beginning to wonder if the big universities in NC as well as clemson have class at all next week. I can’t imagine anything before Wednesday and that feels a bit optimistic. I’ve never seen values this high anywhere really and it’s just pure ice and with cold temperatures after, this is going to take awhile to melt and infrastructure just isn’t built for a storm of this magnitude
 
Best I could tell it looked like 8-10 hours of ZR late sat night through early Sunday morning for the NE side of Atlanta. Temps 30-32
Honestly though, the GFS and Euro are kinda lining up for ATL. I mean GFS is slightly colder, which caused more ZR Totals but I noticed each GFS run, the temps are slightly warmer. This is interesting.
 
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