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It's coming 1/31-2/1


Rjay
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The ridge axis so far west gives me more hope this won’t slip out to sea. It’s in a place where honestly it’s better for the Apps. If it was say over the Dakotas that would be more of a problem. But a couple of tweaks which are very doable at this stage and we’re back to monster solutions. 

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The key points to remember for today IMO

1. the key piece of energy that will generate the trough lalter this week is still far north in Canada and there is sparse sampling up there.

2. The trough down south later this week has to take on a negative tilt sooner than later and further west for this storm to get close enough to the coast to give us a major storm. If it waits to go negative further east the storm will ride up the coast further east.

3. The reason the trough has to go negative earlier and further west is because the upward motion in the atmosphere is on the northeastern flank of the trough promotes heavier precip and this will be centered over the metro if the storm is close to the coast and out to sea if it goes negative to late.

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3 minutes ago, jm1220 said:

The ridge axis so far west gives me more hope this won’t slip out to sea. It’s in a place where honestly it’s better for the Apps. If it was say over the Dakotas that would be more of a problem. But a couple of tweaks which are very doable at this stage and we’re back to monster solutions. 

Going out to sea is more a product of this closing off too early than issues with the trough orientation.

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1/27 06z QPF summary
 
ICON:

qpf_acc-met.nwatl.png
 
GFS:

qpf_acc-met.nwatl.png
 
GGEM:

qpf_acc-met.nwatl.png


UKMET:

qpf_acc-met.nwatl.png
 
GEFS:

qpf_acc-mean-met.nwatl.png
 
GFS AI AIGFS:

qpf_006h-met.nwatl.png
 
EURO:
AIFS:

qpf_006h-met.nwatl.png

EPS:

qpf_acc-mean-met.nwatl.png
 

Your gfs ai and euro ai are 6 hour qpf - can you update with the total?


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15 minutes ago, Joe4alb said:

I know its the 84hr NAM but the uppers look much for like the EURO-AI then the EURO. 

Yeah looks to be a midpoint solution between GFS and EURO operational.

Long range NAM like you mentioned though.

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I think today is a day where each model can jump 200-250 miles in either direction. Once within 72-96 hours that’s much less likely as you get 50-100 mile moves and then the typical 25-50 shift within 24-48 hours 

Thing is the northern stream is sitting in S Canada right now. It isn’t like this is energy coming off the PAC and poorly sampled. Not saying it can’t happen, but I don’t expect any type of giant shifts personally. I hope I’m wrong though.
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I like where this is at so far. Not far off from giving a significant snowfall for much of the region, though I'm excited being at the coast. Still plenty of time for shifts. I wouldn't focus completely on low placement until tomorrow/Thursday. 

I'm feeling January 2018 (especially with the cold week prior) and January 2022 vibes. 

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9 minutes ago, Heisy said:


Thing is the northern stream is sitting in S Canada right now. It isn’t like this is energy coming off the PAC and poorly sampled. Not saying it can’t happen, but I don’t expect any type of giant shifts personally. I hope I’m wrong though.

Northern Canada is a very data sparse region....

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1 minute ago, TJW014 said:

I like where this is at so far. Not far off from giving a significant snowfall for much of the region, though I'm excited being at the coast. Still plenty of time for shifts. I wouldn't focus completely on low placement until tomorrow/Thursday. 

I'm feeling January 2018 (especially with the cold week prior) and January 2022 vibes. 

Yep, I don’t see this as something that comes storming back and we’re sweating the mix/rain line but we’ll see. There is the kicker right on its heels and the NAO blocking so there’s only so far west it can really trend but 150-200 miles, sure. 

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Get that southern energy a little slower and/or that northern energy a little faster and I think the ICON would have been a hit. Right now it runs that southern energy ahead of the ULL over the SE which takes over too far east

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