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Mid to Long Range Discussion ~ 2024


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On 11/16/2024 at 12:23 PM, PackGrad05 said:

Looking more and more likely that Raleigh breaks record for latest first freeze.  November 28 since records were taken at RDU and December 3 prior to RDU.
The upcoming trough gets us back to "normal" levels and then another warm-up after that.

While RDU did not freeze this morning, many — if not most — rural areas nearby did hit 32. RDU is a heat island these days.

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16 hours ago, StantonParkHoya said:

While RDU did not freeze this morning, many — if not most — rural areas nearby did hit 32. RDU is a heat island these days.

I'm in a rural area in southern Wake and haven't come close to 32.  39 is the lowest I've hit so far.  Has any station in Wake, or Johnston for that matter, reported freezing temps yet?  

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15 minutes ago, PackGrad05 said:

I'm in a rural area in southern Wake and haven't come close to 32.  39 is the lowest I've hit so far.  Has any station in Wake, or Johnston for that matter, reported freezing temps yet?  

Not at any of the long term climate stations. Probably some isolated stations have dropped to freezing.

d_wfo__sector_IA__network_WFO__wfo_RAH__var_min_low_temp__gddbase_50__gddceil_86__date1_2024-08-01__usdm_no__date2_2024-11-18__p_contour__cmap_RdYlBu__c_yes__ct_climate51___r_t__dpi_100.png

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10 minutes ago, wncsnow said:

Looks like a lot of cold rain for now. yay

While I’m hoping we score a coup, most ensembles have a little bit of SER action to counter the dump of cold. I’ll never bet against the SE ridge but I’m thinking the details are very far from being ironed out. A stretched PV would go a long way in squashing the ridge a bit more and it’s too early to resolve that. Albeit - it wouldn’t hurt to lay down some snowpack up north. It certainly helps our odds in the better climo months. Still think that 3rd/4th timeframe bares watching. 

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25 minutes ago, BooneWX said:

While I’m hoping we score a coup, most ensembles have a little bit of SER action to counter the dump of cold. I’ll never bet against the SE ridge but I’m thinking the details are very far from being ironed out. A stretched PV would go a long way in squashing the ridge a bit more and it’s too early to resolve that. Albeit - it wouldn’t hurt to lay down some snowpack up north. It certainly helps our odds in the better climo months. Still think that 3rd/4th timeframe bares watching. 

It bares watching but like you said- the SE Ridge has been killer recently and its going to be a problem all winter. 

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3 hours ago, olafminesaw said:

I'm surprised not to see an appearance from @GaWx with updates on the ensemble forecast. Though odds are low for any threat on early December, I normally expect deep dive analysis from even the most far fetched of  threats.

 I’ve been posting in the main La Niña forecasting thread. However, these posts have been addressing changes from run to run of overall US temperatures/heating degree days (especially E US) on EPS but also some GEFS runs as opposed to narrowed to SE US temperatures or winter storm threats. As a part of that I’ve been following natural gas mkt prices, which are often a good gauge of E US ensemble HDD forecasts in week 2. Example: today’s NG high was the highest since Jan!  I also in there post about various indices and ENSO SSTa’s. Looking forward to the cooldowns!

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1 hour ago, NorthHillsWx said:

Ensembles look pretty good first week of December. Ops are showing SER and delayed cold over the mountains. Not a terrible pattern at least. STJ looks active 

Feels like the last time cold air made it over the mountains without moderating considerably was the 2022 Christmas arctic blast. Certainly nothing with any staying power.

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BAMWX: “On this note, I suspect the fail of La Niña is playing a major role in preventing the Eastern/SE ridge that has been so dominant to be prevalent. 

Stretched polar vortex also setting up in the right spot is a big key too. Fun pattern for #Winter lovers approaching.”

https://x.com/bamwxcom/status/1859555444592644424?s=46&t=5ny5bPgiX5Vy3bQMvYTY5g

 

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5 hours ago, wncsnow said:

Ensembles showed cold coming all last season in the long range while the ops showed the Ridge hanging out. We all know which one won. Hopefully we actually see a true winter pattern for the first time since January 2022. 

^^^This. If there’s even a hint of SER on an Ops model it needs to be taken seriously

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