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Mid to long range discussion- 2025


wncsnow
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Ok I’ll say this. That’s the best run of the GFS in a long time. Why? Less interaction with the LP near the Canadian border. Better antecedent HP location. Negative tilt (obviously). There are lots of things to love about this evenings run even tho it’s primarily a mid Atlantic/NE run for snow. Big improvements in the overall setup. Just a run but that’s what we want 

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4 minutes ago, NorthHillsWx said:

Ok I’ll say this. That’s the best run of the GFS in a long time. Why? Less interaction with the LP near the Canadian border. Better antecedent HP location. Negative tilt (obviously). There are lots of things to love about this evenings run even tho it’s primarily a mid Atlantic/NE run for snow. Big improvements in the overall setup. Just a run but that’s what we want 

Yep, if it phased 6 hours later we’d be jumping up and down 

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5 minutes ago, SnowDawg said:

Would really like to get back to southern slider solutions. That is a mid-atlantic storm. 

The timing of the system is just ideally awful on the 18Z GFS for the wedge areas of GA/SC etc...there is a window where the storm could come out earlier or later and you get mostly snow or mostly rain but the timing is perfect where the high is beginning to slide into an area where it can wedge those regions for a severe ice storm

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1 hour ago, SnowDawg said:

Would really like to get back to southern slider solutions. That is a mid-atlantic storm. 

I kinda disagree. Southern slider is a “safer option” but if trends from this run continue this is how we’d get our “big dog”. This was more about track than airmass issues. I mean even with this track it locks RDU below freezing for the event. I guess to your point, 18z is the go big or go home option, but there are a lot of pieces to like about the phase and negative tilt, along with HP placement and cold being established before the storm without screaming southerlies at 850 like we’d seen the last few days. 
 

18z also shows a lot of potential following the storm this weekend. The ridge placement out west looks a lot better for the next system and it delivers cold through the run. While I know it’s likely way overestimated, this doesn’t look like a cutter pattern. One run, I know

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10 minutes ago, BooneWX said:

Euro AI and GFS look similar but hard to tell much since we don’t have many detailed Euro AI maps. 
 

This is the FOURTH run in a row that the Euro AI is producing almost the exact same look with little to no change. 

Stubborn people often wrong. I guess stubborn AI could be as well.

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3 minutes ago, jburns said:

Stubborn people often wrong. I guess stubborn AI could be as well.

Could be. It’ll be interesting to look back and see if it was the first to sniff the correct end game or first to miss. I don’t think we have a trend in any direction yet, but I do think there are more depictions closer to its solution as of recent runs.

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