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Wintry January 23rd-27th 2026

Not to be a buzzkill or anything, but once that Euro AI is locked onto a solution it is locked on. Sometimes it shows the same thing even within 48 hours, even when it's absolutely wrong, though. Right now it's a FWIW.
 
this is the storm that finally made me break down and pay for pivotal

but yeah new euro ai is warmer, baja trough pumps the SE ridge some and shoves our entire temp gradient northward some. not a jolt but enough to make you say hmm
Key pivotal change is the opening of the Baja Low. With such a cold press, it looks like it could head into classic Miller-B territory with primary looking a little like UKie but having to transfer offshore (since it physically can't bust thru a wedge east of the Apps).
 
It appears to me the difference on AIFS and Operational runs is the way they're handling that pacific shortwave. AIFS seems to phase it very easily with the baja low, without interacting much with the TPV itself. While operational runs appear to actually the pacific wave interact with everything else. I'd keep a general eye on this idea given one is low res and one is a little bit higher res data.

Edit: However euro does seem to bring in that pacific wave into the baja low and phase. That might make it go much further north. Models vary significantly with how much they interact with that shortwave as well.


So many moving pieces with this storm, going to take quite a bit to figure out.1768801536402.png
 
For reference, here's what the Jan 1973 ice storm looked like.. probably the most prolific ice storm that most Atlanta natives know about.View attachment 185296View attachment 185294View attachment 185293
I was 4 years old living in Athens when this happened. Power out for over a week, it was bitter cold, and we cooked from a Coleman camper stove. Hot chocolate was a treat that week. We weren't allowed to go outside, at least I wasn't. Just a couple months after this we had the F4 rated tornado that passed over just a few miles from our house
 
Just a reminder, a lot of that is sleet, and a ton of it. Probably would be some 3-5” swaths of it if this actually played out. euro loves to overcook ZR, 925s around -5 to -10 is pretty ideal for sleet View attachment 185442
It was a 5F at 925 for ATL on the 12z and now it is -2 to- 3 now. It trended colder if I am looking at it right.
 
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