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Winter 2024/2025 December Thread


AMZ8990
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All of E TN is roughly 2 degreesF BN.  Today will put a dent into that, but we should recover some of that by this weekend.  

I don't know that I want the TPV getting broken up, but we may be left with no choice in the matter - looks to me like the GFS has some pretty significant warming is taking place between 10-50mb.  At 50mb, it gets jostled pretty good.

Again, I don't want it wrapped up tight at high latitudes....but seems like (of late) the predominance of cold goes to Asia w/ a split.  But that is pretty strong warming on the 12z GFS.

My guess(stress guess) is that warming may well be a precursor to a -NAO later in January.  Warming between 10-50mb seems to be the dashboard warning light for that during the past several years.  Again, not sure I want to see the NAO fire just yet as well.

January looks pretty decent without too many bells and whistles.

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1 minute ago, Carvers Gap said:

All of E TN is roughly 2 degreesF BN.  Today will put a dent into that, but we should recover some of that by this weekend.  

I don't know that I want the TPV getting broken up, but we may be left with no choice in the matter - looks to me like the GFS has some pretty significant warming is taking place between 10-50mb.  At 50mb, it gets jostled pretty good.

Again, I don't want it wrapped up tight at high latitudes....but seems like (of late) the predominance of cold goes to Asia w/ a split.  But that is pretty strong warming on the 12z GFS.

My guess(stress guess) is that warming may well be a precursor to a -NAO later in January.  Warming between 10-50mb seems to be the dashboard warning light for that during the past several years.  Again, not sure I want to see the NAO fire just yet as well.

January looks pretty decent without too many bells and whistles.

Cohen noted in his write-up that Canadian strat. warming is being advertised. That happened last January and worked against us. He's saying he expects it to dump the Cold into Europe. Hopefully, it as is the case with some SSW'S does opposite this time.

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That last week should be warm enough to get us slightly above average.  The month as a whole will have been below average for temps.  So, I don't sweat averages.  Slight above average in E TN has meant decent winter weather at times.

Either way, both the 12z Euro and GFS are starting to advertise a sharp cool down after the new year.  Hopefully (and I think it is), what we are seeing is the beginnings of 2-3 weeks of cold temps to start January.  I think week two into week three will be the coldest if weeklies(both GEFS and Euro) are correct.  

As for Europe getting cold, that is generally a good sign for the eastern US as that correlates to colder temps.

I think we are gonna be just fine this winter.  I could be wrong.  The only thing one really has to be careful of....is whether this upcoming warmup is longer than advertised.  That has happened during recent winters.  I do think it lasts around a week this time.  The strat warm stuff can really cause havoc in modeling.   Again, I think we come up good this time around.

The good thing is that we can see the cool down already starting to peak around the corder at d14-16.

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14 minutes ago, John1122 said:

We are currently -4 for the month. Two mornings in the lower 10s helped that along a great deal. Oneida is -4, Norris is -4.2, Monteagle is -4.4, Oak Ridge is -4.2. Odd that points East of 75 are only -1.5 to -2.5 while points west of 75 are that much cooler. 

I'll check my stats in a bit but, I'm thinking around -4 here as well .

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MRX mentions possibility of a tornado tomorrow. This seems like the sort of conditional set up that has surprised us the past couple of years. I am by no means a severe enthusiast, but time of day and any potential clearing, relative storm motion, yada yada just strikes me as having some sneaky potential. 

We need some thunder either way. 

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1 hour ago, Holston_River_Rambler said:

MRX mentions possibility of a tornado tomorrow. This seems like the sort of conditional set up that has surprised us the past couple of years. I am by no means a severe enthusiast, but time of day and any potential clearing, relative storm motion, yada yada just strikes me as having some sneaky potential. 

We need some thunder either way. 

Cumberland Plateau has been like tornado alley lately.  Ya'll can keep those babies over there!  LOL - sort of LOL.

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33 minutes ago, Daniel Boone said:

I have come to a similar conclusion, but I am just model watching!!!  LOL.  The GEFS ext actually looks better than the Euro Weeklies tonight which is a BIG change.  That EPO/PNA ridge looks like the default for at least the first two months of winter.  That trough will try to go into the Mountain West for February, but as those wavelengths shorten up...that trough will kick eastward 1-2 times.  I like the setup.  I did not like the setup prior to October.  However, that colder set of analogs is maybe going to make some noise for Jan 5-20.  No promises at this range, but fun to watch.  Great share.

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1 hour ago, Carvers Gap said:

I have come to a similar conclusion, but I am just model watching!!!  LOL.  The GEFS ext actually looks better than the Euro Weeklies tonight which is a BIG change.  That EPO/PNA ridge looks like the default for at least the first two months of winter.  That trough will try to go into the Mountain West for February, but as those wavelengths shorten up...that trough will kick eastward 1-2 times.  I like the setup.  I did not like the setup prior to October.  However, that colder set of analogs is maybe going to make some noise for Jan 5-20.  No promises at this range, but fun to watch.  Great share.

Great Post man ! Good analysis extrapolating on what he said and how you see February. Makes sense. 

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We had hail yesterday with the storms. Not much lightning down here though. And only 0.15" of rain. I have a few friends with wells that are concerned. They are still getting low water warnings on their systems even in December. That's almost unheard of. The only real heavy rain event we've had since July was Helene, and that all fell so quickly it mostly ran off and did nothing for groundwater replenishment.

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