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Wintry January 21-23 2025

From NWS Atlanta afternoon disco

“I feel like I`m having to do this too much for a meteorologist in Georgia, but let`s once again take a moment to discuss the potential for some winter weather middle of next week. Yet again, we are seeing a few of the operational models occasionally spit out a significant winter event for our area, giving some eye popping 10:1 snow maps ripe for slapping up on social media. With signs that we will have yet another significant Arctic front move through the area by the end of the week into early next week, we will certainly be in a set-up that *could*, once again, bring
winter weather into the CWA. Cold air will be well into the Gulf, establishing a baroclinic zone along the coast, and there are signs of a shortwave that may be able to tap into that for surface low formation and have a decent connection to the subtropics to pull in some moisture. However, so far, of the 2-3 potential winter setups like this we`ve seen the models spit out this winter season, 1 has panned out. Getting all the ingredients in line at the right time in the right way is always tough here. To emphasize this, looking at ensemble model probabilities across the 12Z guidance for getting >1" of snow, the GEFS shows around 5%, the European ensemble around 10-15%, and the Canadian about 5% only in northern GA. Could it happen? Absolutely. These probabilities are certainly much higher than the typically probability of snow on a given day in the winter in Georgia (<1% in most places). But despite a deterministic model run spitting out big numbers, there are still plenty of model runs where things just can`t quite get lined up. So, keep an eye on the forecast, know the possibility is there, and we`ll have a much better idea of if we can get things to come together the closer in time we get to the potential event.

Lusk”
 
SV is clearly counting ice in this…but still, it’s pretty to look at.


View attachment 162988
good god

catching up

this is one of the best 9 day signals ive ever seen on an eps. it actually may be the best. 6 inches to wilmington? pardon me?

quick reminder that the friday storm also had big dog potential until it got hung up in cabo. this bet feels a little safer
 
With the amount of cold being forecast this far out on ensembles. I’d like to see this trend stop. This has all the hallmarks of dominant dry cold. Something many here hate to see
thinking about this as well but it is a good sign that so far it looks like the flow will have a southwesterly component
 
View attachment 163062
word of caution on the euro is that this look is probably a nudge or two southwest to being another baja issue. temper expectations
That'll really come down to the orientation of the western ridge. If it starts to roll over the top then it'll probably happen again, just like what happened last time. Definitely something to keep an eye on.
 
That'll really come down to the orientation of the western ridge. If it starts to roll over the top then it'll probably happen again, just like what happened last time. Definitely something to keep an eye on.
yeah, tbh these sort of wave dynamics are not my strong suit but it looked like that was caused by anticyclonic wave breaking and this ridge isn't as "poky". things could change though. i have a carton of milk in my fridge that i bought like a week ago and i feel like that carton and this pattern have the same chance of going bad over a 10 day peroid
 
Critter sat night is getti

Boy that looks like overunning from Texas up into Tennessee to carolinas!!
i'm not gonna lie it is simply an elite look that other models are showing. explosive potential. something to remember with setups like these- this will feature a super tight temperature gradient. if this really is legit, small changes in track will incur massive temperature swings at certain fixed points. if you're in Charleston there's a chance you could be 17 and snowing one run and then facing severe at 65 the next run. You will be tempted to say, the models don't know anything. They actually do know something, it's just a product of the temperature gradient swinging back and forth.
 
91aea4524b26b39e78ecd38e0c764903.jpg

This is 18z euro at 144hrs. This is the wave before the energy that caused the HECS on the 12z run but this is not a bad look imo and looks similar to 12ukmet at 168hrs. I feel like this will go down as one of best January’s in the last decade. Who would’ve thought this back in August


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