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Pattern Jammin' January

Weeklies for weeks 3-5: look the same or slightly colder each week vs prior run. Weeks 3-6 all colder than normal SE with -NAO/-AO/+PNA. Though they may very well be underdoing the cold intensity, they're not extreme cold by any means at 2 meters or even at 850, which may mean just glancing blows from some of the Arctic highs and with warmups in between. Which is probably what most here would want anyway since they don't want extreme cold/dry. The best place to be for most in the SE for big snow chances often is at the bottom of Arctic highs as opposed to them plunging deep down here, which is usually means dry. But the jury is still out on that. Precip near normal all weeks in most of SE US, which is indicative of it not being a dry pattern from deep cold plunges.
 
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Yeah. It’s hard statistically to get a large mean with 52 members. Looks pretty impressive to me, especially to our north, where our cold air will be coming from.

Exactly. If we get this pattern to verify, it will probably trend colder and colder as the models have a hard time with temps with snowpack.
 
Nice cold shot from 222 to the end of the run. Now we just got to get one of the waves to produce is a storm.
 
In that whole animation, the coldest I get is 27 degrees, and getting close to February at the end! That’s about 4-5 degrees below normal. Don’t know what everybody is excited about!?

I don’t know exactly what part of North Carolina your from. You don’t want it too cold then you have to worry about storms being suppressed. Plus if you take a look at the bigger picture you can see all that cold in Canada. It wouldn’t take much for it to come rolling on in the Southeast with the correct blocking. I am looking at the big picture in general and not mby.
 

That map even shows 0.1" way down here. Have we ever had two winters in a row with measurable snow? I could find only one: 1988-9 and 1989-90. However, I'm aware of several winters with two: 1851-2, 1917-8, 1976-7, and 1985-6. Also, there's a good chance there were at least two during 1799-1800.
 
I think we can safely say that the doc was drunk tonight. What the heck happened to the King?
 
Alright, here's the deal. The discussion threads have gotten chaotic recently with banter, off topic, one liners, wannabe jokers, etc.

Basically, the moderators don't want to be "jerks" like "other places" that we seem to be accused of lately, so I'll handle it myself.

Keep the off topic banter in here. Only warning. We want people to be able to read the pattern/storm threads and learn something versus sifting through 500 garbage posts in between.

If you hate this place so much or think it's "turning into the other place" then you're free to request an account deletion.
 
6z GFS has me interested in two potential system for the southView attachment 10652View attachment 10653
The upper air pattern stinks for a SE winter storm for this time frame, as depicted on the regular GFS. Take a look: There is a nice ridge along the west coast and up into Canada. But notice how the trough axis is oriented farther west. Also notice that there is no blocking. Also notice that the storm is already too far north, as it should be, based on the model's upper air depiction. This would most likely be front end slop for the far northern/western zones, maybe, followed by rain.

GFS.jpg

Now, look at the FV-3 for the same period: The ridge isn't quite as tall, but it's still very effective, along the west coast. But what do we see over Greenland? A nice big fat west-based -NAO. The PV is farther south and oriented more west-east, and the storm track is farther south. It is a classic suppressed pattern. If this shows up for real, it is time to sound the alarm, load the boat, back up the truck, go all in, etc.

FV-3.jpg

Unfortunately, it's been a long time since that pattern showed up for real. But if it does, it's full steam ahead snowstorm city.
 
The upper air pattern stinks for a SE winter storm for this time frame, as depicted on the regular GFS. Take a look: There is a nice ridge along the west coast and up into Canada. But notice how the trough axis is oriented farther west. Also notice that there is no blocking. Also notice that the storm is already too far north, as it should be, based on the model's upper air depiction. This would most likely be front end slop for the far northern/western zones, maybe, followed by rain.

View attachment 10663

Now, look at the FV-3 for the same period: The ridge isn't quite as tall, but it's still very effective, along the west coast. But what do we see over Greenland? A nice big fat west-based -NAO. The PV is farther south and oriented more west-east, and the storm track is farther south. It is a classic suppressed pattern. If this shows up for real, it is time to sound the alarm, load the boat, back up the truck, go all in, etc.

View attachment 10664

Unfortunately, it's been a long time since that pattern showed up for real. But if it does, it's full steam ahead snowstorm city.

I hope the FV3 is correct and we all taste that delicious awesome sauce. Really, are we going to believe the GFS over the FV3 anymore?
 
Bias or no bias , the 06z gefs is one of the coldest runs in a while starting at day 8 through the end of the run


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Looks like MLK is the threshold for a nice cool/cold pattern that locks in. Everything after was a moderate cold that hangs around through the end of the run. Nice.

1547214862284.png
 
I hope the FV3 is correct and we all taste that delicious awesome sauce. Really, are we going to believe the GFS over the FV3 anymore?
Agreed. Honestly, it's difficult to believe any model at that range. But if I knew that one of them was going to be right and didn't know which one it was, I'd probably pick the regular GFS, just because that's the kind of "good" pattern that we've seen continue to repeat the last several years. -EPO driven with no blocking, ending up in mostly mixed events and Miller B things.
 
The upper air pattern stinks for a SE winter storm for this time frame, as depicted on the regular GFS. Take a look: There is a nice ridge along the west coast and up into Canada. But notice how the trough axis is oriented farther west. Also notice that there is no blocking. Also notice that the storm is already too far north, as it should be, based on the model's upper air depiction. This would most likely be front end slop for the far northern/western zones, maybe, followed by rain.

View attachment 10663

Now, look at the FV-3 for the same period: The ridge isn't quite as tall, but it's still very effective, along the west coast. But what do we see over Greenland? A nice big fat west-based -NAO. The PV is farther south and oriented more west-east, and the storm track is farther south. It is a classic suppressed pattern. If this shows up for real, it is time to sound the alarm, load the boat, back up the truck, go all in, etc.

View attachment 10664

Unfortunately, it's been a long time since that pattern showed up for real. But if it does, it's full steam ahead snowstorm city.

All I need is a western ridge and a -epo . You Carolina peeps can worry about the NAO . I figure we get a 2-3week window with chances starting the week of the 20th. A -epo pattern has been money for the last decade for my area . What’s the saying , if it’s not broken don’t fix it .


That said if we happen to get a -NAO that’s great . Then maybe we can get a slow crawling Miller A . One can dream right ?



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The upper air pattern stinks for a SE winter storm for this time frame, as depicted on the regular GFS. Take a look: There is a nice ridge along the west coast and up into Canada. But notice how the trough axis is oriented farther west. Also notice that there is no blocking. Also notice that the storm is already too far north, as it should be, based on the model's upper air depiction. This would most likely be front end slop for the far northern/western zones, maybe, followed by rain.

View attachment 10663

Now, look at the FV-3 for the same period: The ridge isn't quite as tall, but it's still very effective, along the west coast. But what do we see over Greenland? A nice big fat west-based -NAO. The PV is farther south and oriented more west-east, and the storm track is farther south. It is a classic suppressed pattern. If this shows up for real, it is time to sound the alarm, load the boat, back up the truck, go all in, etc.

View attachment 10664

Unfortunately, it's been a long time since that pattern showed up for real. But if it does, it's full steam ahead snowstorm city.
FV3 has been better in the long range so I will go with that. We may not always get sustained -NAO blocking but with a -EPO we are money as well.
 
All I need is a western ridge and a -epo . You Carolina peeps can worry about the NAO . I figure we get a 2-3week window with chances starting the week of the 20th. A -epo pattern has been money for the last decade for my area . What’s the saying , if it’s not broken don’t fix it .


That said if we happen to get a -NAO that’s great . Then maybe we can get a slow crawling Miller A . One can dream right ?



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It's been a while since we had a slow moving Miller A that hammers most of the south from TX to the Carolinas. I would say we are overdue!
 
All I need is a western ridge and a -epo . You Carolina peeps can worry about the NAO . I figure we get a 2-3week window with chances starting the week of the 20th. A -epo pattern has been money for the last decade for my area . What’s the saying , if it’s not broken don’t fix it .


That said if we happen to get a -NAO that’s great . Then maybe we can get a slow crawling Miller A . One can dream right ?



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Yeah, you guys are far enough west that you don't need the NAO as bad. I can't recall the last time I've seen a storm in winter move through southern GA/southern SC/northern FL and then just off and up the coast. That track doesn't seem to happen anymore. Probably mostly due to lack of wintertime blocking.
 
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