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Pattern December Doldrums 2025 šŸŽ„ ā„ļø

Like I said earlier, this pattern is CAD purgatory. You gotta take what you can get, because relative to the pattern we’re in, that’s probably about the best we can do šŸ˜‚
no yeah I take it over warm personally, I was just hoping it would have prettier colors closer to my house honestly
 
wonder what winter storms we’ve had with -PNA/-WPO/-NAO, I’m sure they are messy and likely CAD driven

Quick database search for -PNA/-WPO/-NAO/+EPO in Dec-Jan I pulled up a storm from Christmas Day in 1948 and the other was an ice storm in late January 1969.
 
I must be in a cold pocket, it was 9 this morning for the low. Long range, it could be ugly for those wanting cold/snow in the SE (excluding the mountains) until mid-late January
 
Alan Huffman, this morning said he believes we will be warm until at least Mid January.
Just thought I’d pass along some more depressing news. Have a great day everyone!


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While this is not encouraging for the next thirty days or so if Allan's statement ends up being correct, remember 2000 and the warm weather we in North Carolina had for the first part of that January. Things changed during the second part of the month and we got the record snowstorm in the last week of January that so many of us remember.
 
Wasn’t February 2004 as well? I know it had a -PNA/-NAO
Feb 2004 was more so of a cutoff traveling under a Canadian omega block/-NAO keeping a suppressed track and a 50/50 low up in the NE, more of a -NAO/-AO dominated pattern, WPO looks positive. Looked very Nino esque. Probably gotta wait a while for something like this to show up IMG_0785.gif
 
The sensible weather over the holidays looks like a big roller coaster ride on most models over the Carolinas.

I’m pretty confident we won’t see much snow or ice, but daytime temperatures could waffle between the mid-upper 40s and 70s depending on the placement and timing of the 50-50 low and upstream Southern Plains ridge.
 
not looking super impressive on QPF this side of the Apps with our frontal rain thursday night into friday morning. shocked! of course, the great swnc rainforest looks to cash

1765822057344.png
1765822102394.png


quietly dry, but not dry enough to make much noise lately
30-day anomaly
1765822233923.png

90-day
1765822220858.png
 
wonder what winter storms we’ve had with -PNA/-WPO/-NAO, I’m sure they are messy and likely CAD driven

12/26/2010 was the only 6ā€+ storm at RDU since 1950 that qualifies as it had:

- weak -PNA (-0.3)
- -WPO (-1.4)
- moderate -NAO (-0.8)

It also had:
- +EPO (+1.2)
- strong -AO (-2.9)
- moderate MJO 5
- La Nina
 
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Most negative PNA for 6ā€+ RDU storms since 1950 (based on research I did previously):

-0.8: 3/2-3/1960
-0.5: 3/9/1960
-0.3: 12/26/2010

These had -0.1 PNA, which I consider neutral PNA:
-0.1: 2/18-19/1979
-0.1: 2/26-27/2004
-0.1: 1/17/2018
 
ough we have different definitions of nice


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Probably very selfish but I will be here (X) from the 22nd-27th (Just south of Pennsylvania)....so I dare say bring it. For anyone who lives in this area, it's dark early. Constant clouds and CAD. Just yuck. But, if we can squeeze that out, I won't argue.
 

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Now I’ll add GSO 6ā€+ storms since 1950 that weren’t also at RDU to the RDU 6ā€+ list that I already showed the PNAs for to list what the most negative PNA of all of these was:

6ā€+ storms since 1950 at GSO and/or RDU: most negative PNA (**note that only 12 of the 37 storms had PNA<0**):

-1.1: 2/12-13/2014 (moderate +NAO)
-0.8: 1/22-24/1954 (moderate +NAO)
-0.8: 3/2-3/1960 (neutral NAO)
-0.7: 1/6-7/2017 (moderate +NAO)
-0.5: 3/9/1960 (neutral NAO)
-0.3: 12/26/2010 (moderate -NAO)
-0.3: 2/24-26/2015 (strong +NAO)
-0.2: 2/27/1987 (weak -NAO)
-0.1: 2/18-19/1979 (neutral NAO)
-0.1: 1/12-14/1982 (neutral NAO)
-0.1: 2/26-27/2004 (weak -NAO)
-0.1: 1/17/2018 (strong +NAO)

Note that of these 12 big RDU/GSO storms since 1950 with PNA<0, almost half (5) had a moderate or strong +NAO, only 25% (3) had a -NAO, and none had a strong -NAO.
 
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Now I’ll add GSO 6ā€+ storms since 1950 that weren’t also at RDU to the RDU 6ā€+ list that I already showed the PNAs for to list what the most negative PNA of all of these was:

6ā€+ storms since 1950 at GSO and/or RDU: most negative PNA:

-1.1: 2/12-13/2014 (moderate +NAO)
-0.8: 1/22-24/1954 (moderate +NAO)
-0.8: 3/2-3/1960 (neutral NAO)
-0.7: 1/6-7/2017 (moderate +NAO)
-0.5: 3/9/1960 (neutral NAO)
-0.3: 12/26/2010 (moderate -NAO)
-0.3: 2/24-26/2015 (strong +NAO)
-0.2: 2/27/1987 (weak -NAO)
-0.1: 2/18-19/1979 (neutral NAO)
-0.1: 1/12-14/1982 (neutral NAO)
-0.1: 2/26-27/2004 (weak -NAO)
-0.1: 1/17/2018 (strong +NAO)

Note that of these 12 big RDU/GSO storms since 1950 with PNA<0, almost half (5) had a moderate or strong +NAO, only 25% (3) had a -NAO, and none had a strong -NAO.
Few of the dates above thrown in...need the aleutian ridge to build poleward...that would change the sentiment.

It's what I am hoping for in early/mid January. Fingers crossed...

ecmwf-aifs-ensemble-avg-nhemi-z500_anom_5day-7096000.pngcompday.fffMZqBOvW.gif
 
Watch this death ridge set up shop and rock everybody to sleep then we miller B into a setup with low level cold anchored by a 1042 high and drop an ice storm for the ages. We’ve been overdue for the past 15 years.
 
Watch this death ridge set up shop and rock everybody to sleep then we miller B into a setup with low level cold anchored by a 1042 high and drop an ice storm for the ages. We’ve been overdue for the past 15 years.
Don’t worry, winter 26/27 gonna be yalls winter! Currently 27 here, full sun, melting everywhere
 
Watch this death ridge set up shop and rock everybody to sleep then we miller B into a setup with low level cold anchored by a 1042 high and drop an ice storm for the ages. We’ve been overdue for the past 15 years.
I wish. Yall underestimate how awesome mixed bag events are if there's enough QPF. Gimme 6-8" SN / 1" Sleet / 1/4 - 1/2" ICE on top and 5 days after at 35 and below all day over 8-12" Of pure snow and then its in the 40s -50s and gone 48hrs later. Hell even 10-12" of snow pure isnt as good as 8" / 1"IP? 1/4" ice
 
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