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Mid to long range discussion- 2025


wncsnow
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4 hours ago, franklin NCwx said:

Is that the "real" cold rain?

And also the real “Rain Cold” as he is also known. :D

 Based on ensemble 2 week progs, the -NAO for Nov overall is quite possibly (or even probably) going to end up the strongest in Nov since 2010.

 2000 is a Nov strong -NAO, late Nov weak SPV, and active sunspots analog. If the MJO were to keep going and get into 7/8/1/2/3 in Dec, that would also be like 2000.

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 The current and recent KCHS NWS forecasts for KSAV have been for 30 on 11/11 in a windy freeze. If that were to verify, it would be the earliest 30 or colder since way back in 1976! However, latest and recent model consensus is suggesting that 30 is on the low end (Icon). ICON actually warmed some from 27s on Sat runs.

 Latest ICON/GFS/CMC/Euro/UKMET (through 6Z/0Z 11/9 runs) have 30/32/33/33/34. If this were a radiational cooling night, I’d likely favor the low end per slight warm bias of consensus. But with it being windy, I’m currently thinking near the model avg of 32. However, if the model consensus were to cool, I’d adjust colder. Even just getting to 32 would mean the earliest freeze since 2010!

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On 11/7/2025 at 9:54 AM, GaWx said:

Here are the progs for Nov 11th lows from the latest ICON/CMC/Euro/GFS/UKMET

1. GA
-SAV: 29/31/34/34/35
-NE ATL (Chamblee): 25/23/29/34/32

2. SC
-GSP: 23/21/29/27/29
-CAE: 28/32/33/32/34

3. NC
-CLT: 25/30/31/29/32
-RDU: 28/34/32/32/35

—————————
Average for each model for the 6 cities:

ICON: 26.3
CMC: 28.5
Euro: 31.3
GFS: 31.3
UKMET: 32.6

Any guesses for:
1. Which model for the 6 cities averaged out will do best?

2. Which model for the 6 cities averaged out will do worst?
———————

My guesses:
1. Best: Euro/GFS (tie)
2. Worst: ICON

Edit: I’m guessing that the average low for these 6 cities will be 30.5F.

Followup to the above based on lowest hourlies through 7AM (I’ll update this if any official lows turn out to be lower):

These appear to be the lows along with the model that was closest out of the 11/7 6Z GFS/ICON/Euro runs and 11/7 0Z UKMET/CMC runs:

SAV: 28/ICON
NE ATL: 28/Euro
GSP: 23/ICON
CAE: 29/ICON
CLT: 29/CMC
RDU: 30/ICON, Euro, GFS tied

-Avg of these: 27.8, which is significantly colder than my guess of 30.5 and lead me to be dead wrong with my prediction of ICON to be the furthest away!

-So, although the CMC was closest to only 1 of the 6, it’s average of 28.5 followed by ICON’s 26.3 were closest to the 27.8 actual

-UKMET’s 32.6 was easily the furthest

-So, ICON, alone, was closest to 3 of the 6

So, ICON and CMC did the best overall due to being the coldest while UKMET was the worst due to being the warmest

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58 minutes ago, GaWx said:

Followup to the above based on lowest hourlies through 7AM (I’ll update this if any official lows turn out to be lower):

These appear to be the lows along with the model that was closest out of the 11/7 6Z GFS/ICON/Euro runs and 11/7 0Z UKMET/CMC runs:

SAV: 28/ICON
NE ATL: 28/Euro
GSP: 23/ICON
CAE: 29/ICON
CLT: 29/CMC
RDU: 30/ICON, Euro, GFS tied

-Avg of these: 27.8, which is significantly colder than my guess of 30.5 and lead me to be dead wrong with my prediction of ICON to be the furthest away!

-So, although the CMC was closest to only 1 of the 6, it’s average of 28.5 followed by ICON’s 26.3 were closest to the 27.8 actual

-UKMET’s 32.6 was easily the furthest

-So, ICON, alone, was closest to 3 of the 6

So, ICON and CMC did the best overall due to being the coldest while UKMET was the worst due to being the warmest

Wow, GSP was really frigid!

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33 minutes ago, BooneWX said:

ce588f2079bd65c90d3a51825b54f9ef.jpg

G4 conditions possible tomorrow


.

It gets confusing as they use UTC but basically overnight tonight is a solid chance and then we will see if a daytime hit by the next one can hold on until dark tomorrow night. 

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