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Jan Medium/Long Range Disco: Winter is coming


stormtracker
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2 minutes ago, clskinsfan said:

I think we get a thump at least. We still have a HP heading into the event. Not really a strong one but enough to get some CAD in place at least. 

Yea, I need to remind myself that I'm in Frederick now.  This storm is within my striking distance...I don't care what happens along the 270 split lol.

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11 minutes ago, brooklynwx99 said:

you guys are going to be a hot mess if you lean on the OP runs this much. follow the ensembles. I wouldn't even say there's been a trend towards one solution or the other, we have another model cycle before anything like that can be said

The emotional swings every 6hrs is fascinating to watch though. 

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It's a wonder more of you aren't true alcoholics watching models at D7 and basing your emotions for each run. 

We likely haven't even seen the expected solution yet. Ensembles and cluster analysis are best at this range. All options are on the table. Lean storm coming north compared to being squashed due to lack of blocking and weak confluence to the north, but also don't think everyone in the sub will get skunked. If you're along or southeast of the fall line, I'd temper your expectations on this one. This is likely not a classic 95 setup. We are lacking a true antecedent airmass or drilling high. If that changes, then game on, but not the most likely solution at this juncture. I'm curious to see the GEFS for this one.

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2 minutes ago, psuhoffman said:

Omg the copium is out of control.  Why do so many gravitate to one extreme or the other. There is either no trend and everything looks awesome because we should ignore anything that looks bad and just look at wherever still shows a good track.  Or…it’s over these always trend north and this has no chance. 
 

Reality: The trend isn’t good, these do usually trend north, this isn’t where we ideally want to be, but they don’t always trend north. There are things that could reverse the trend. I’d say it’s 30/70 against us but that’s not hopeless and definitely still worth tracking. And obviously places further NW have a better chance than that here. 
 

Our best shot to reverse this would be for the 50/50 to trend more amplified and further SW. 

the 50/50 low is going to help but i think the biggest concern is the west coast trough crashing in way too early and sending the low too NE, thats what happened this run despite the 50/50 looking stronger(at least initally)

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6 minutes ago, psuhoffman said:

You can go hunting for obscure data to support anything. Or you could loop the last 3 runs of the Euro, GFS and CMC and see a clear trend. It could turn around but we all know that’s not the most likely outcome. Why set yourself up for disappointment?  If this is one of those 30% that things don’t trend north for some reason (we get lucky and the 50/50 goes ape or the NS phases in a better location) then we can be happy. But denying the clear trend and expecting the least probable outcome seems to just be setting us up for a bad bad meltdown. 

I hear what you are saying and I dont disagree. If I were to bet I would think this has the making of a N and W of the fall line setup....maybe thump to mix/rain/or otherwise for the usual locals. But we have one poster congratting Cape Cod, another congratting Buffalo. How far N do you feel this is going to go? I doubt all the modeling is off on the strength of the 50/50. It's more a timing thing imo. And the next step is probably the start of the windshield washer effect. 

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In order for this window to work out for the lowlands, wave timing/spacing is especially critical, given there isn't a sustained block in place and cold air availability is marginal. Comparing this GFS run to the ones with the better outcomes, there is a bit too much spacing relative to the 50-50 vortex, and ofc the shortwave itself is stronger/ more amped. That might work if there was a block, but it becomes really touchy in this case wrt the 50-50 position/strength. Anyway, still plenty of time and a pretty good bet guidance doesn't have the details nailed down at this juncture.

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10 minutes ago, CAPE said:

In order for this window to work out for the lowlands, wave timing/spacing is especially critical, given there isn't a sustained block in place and cold air availability is marginal. Comparing this GFS run to the ones with the better outcomes, there is a bit too much spacing relative to the 50-50 vortex, and ofc the shortwave itself is stronger/ more amped. That might work if there was a block, but it becomes really touchy in this case wrt the 50-50 position/strength. Anyway, still plenty of time and a pretty good bet guidance doesn't have the details nailed down at this juncture.

Hobbyist analysis incoming, but it almost looks like the HP setup is better on 12z than 0z.  Seems like this is really just a matter of the storm being too amped, otherwise it seems like a workable setup.

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2 minutes ago, 87storms said:

Hobbyist analysis incoming, but it almost looks like the HP setup is better on 12z than 0z.  Seems like this is really just a matter of the storm being too amped, otherwise it seems like a workable setup.

The stronger shortwave is the biggest difference yes. If it's that amped its going to be hard to get it to track underneath given the general h5 setup.

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