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CAD storms thread.


dsaur

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My guess is CMC and Euro warm up the next few runs also, starting tonight!  Hope I'm wrong though!!!

 

I suspect you will be right, but I wouldnt be surprised for them to trend back colder as the event gets closer as well. Eventually we will learn to ignore the nuances in the models in this range, what really matters is how and where the high sets up and how long it stays there and I wont trust the models on that until we get inside 3-4 days.

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I suspect you will be right, but I wouldnt be surprised for them to trend back colder as the event gets closer as well. Eventually we will learn to ignore the nuances in the models in this range, what really matters is how and where the high sets up and how long it stays there and I wont trust the models on that until we get inside 3-4 days.

I agree 100%

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CMC support doesn't mean much its way too cold way too often. If the EURO trends 1-2 degrees warmer over the next 5 days then we have a GFS solution.

 

 

If the GFS trends a few degrees colder then we have the EURO/CMC solution.  Point being right now GFS is on its own in showing the solution that it shows.  Many things can change this far out and any solution is still on the table, but the main point as many have stated on here is to focus on the placement/strength of the high.  Other details will fall in place later (surface temps, qpf, etc.)

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I suspect you will be right, but I wouldnt be surprised for them to trend back colder as the event gets closer as well. Eventually we will learn to ignore the nuances in the models in this range, what really matters is how and where the high sets up and how long it stays there and I wont trust the models on that until we get inside 3-4 days.

Isn't this always how it goes. The models show something good and people get excited. The models backtrack and then people come up with excuses like this one. You can't have it both ways. Either the models are getting it, or they aren't.

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No need to fully jump the cliff until the EURO starts to trend warmer. I do prefer it...not just because it is better for winter weather...it is better with CAD compared to the GFS. We are going to be burned out by the time the storm gets here.

I always thought the GFS was much better with CAD events? especially temperatures? In years past.... please correct me if I'm wrong!

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Isn't this always how it goes. The models show something good and people get excited. The models backtrack and then people come up with excuses like this one. You can't have it both ways. Either the models are getting it, or they aren't.

 

Part of me wishes there was no way to look past say 120 hrs, and I remember when storms popped up in the 2-3 day range all the time. The latest runs look like you would expect them to look climo wise for the SE. I think people forget that in the 7 day range I bet maybe 1 out of 10-15 modeled winter events in the SE actually happen...hell it may even be a worse ratio than that if you count the 200+ hr long range fantasy stuff.

 

In this timeframe I prefer the Euro but the GFS lately has tended to see the trend first.......all I know is its gonna be 77 freaking degrees Friday and almost all the big icestorms I can remember followed big warmups...

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I would consider this very nice words from DT on the 0z GFS. He is making some sound sense tonight with no bashing.

 

  •  ....with a clear skies on Saturday ....much colder air comes in along with DEWPOINTS that were much lower in the Low teens . *** The clearing skies and lower DEWPOINTS on Saturday is the KEY to the whole situation. *** The temperature can be 32° but if you do point is 14 and the precipitation starts your saturation temperature ( WET BULB) is in the middle 20s and thus you get your ice or snow.
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  • But in this new scenario by the 0Z Tuesday GFS ...the rain only stops for few hours The cold front stalls much further to the NORTH ...over KY TN state line and over the VA NC state line. Skies never really get a chance to clear out.... so the cold air never gets a chance to drop into the region and thoe Low DEWPOINTS that are so crucial for getting frozen precipitation .....never move into any portion of Virginia or North Carolina or Maryland.
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  • MY VIEW ... I urge caution. First one of my big rules in forecasting in the extended and medium range is that when you have a certain scenario which are showing up tie me after time after time and then along comes one model which has a totally different solution.... Usually that new solution is wrong. Not always but usually. 
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  • SECOND... Wait to see if the other weather models show this change. If this warmer trend with a totally different solution is a valid then the other models should pick up on it tonight. 
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  • THIRD... Right now the weather models see the big SE Ridge but it does not see any significant arctic air over any portion of the CONUS. All the subzero stuff is still north of the U.S. Canada border. Once this arctic cold is in the Upper Plains central Plains and Great Lakes there may be a sudden shift in the models back towards a much colder solution.
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The Euro looks pretty similar to last night's run to me, but maybe a touch warmer.  It definitely has a wedging signal through hr 144, though the HP looks to be sliding out to sea at about then.  It looks quite a bit different than the GFS, in any case.

 

At h5, the SE Ridge looks a little more stout than last night's run.

 

I'm just looking at the free maps, though.

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Michelle, I've had on and off dripping drizzle, and one good shower today.  Didn't give me but .13, but it soaked everything by being around all day.  So, I'll take it.  I always look to the precip first, then worry about the cold, and if precip picks up on the maps as  the week progresses, and moves back south, then someone will have a chance over the weekend, and if not, then some needed rain will fall somewhere north....  as a consolation prize for not winning a hell zstorm, lol.   But who knows?    Might be sunny by the time it gets cold. Me, I'd just like to see the rain coming back south for the main threat. Isn't looking as juicy as it was down here.  And still looks like the closest ice to Ga could be far northern Ala, if the cold banks up against the spine of the mountains over there. T

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How in the wide world of sports does the 0Z good doctor generate mutiinch snowfalls in much of N NC with the 850 always above zero in all of NC through 0Z 12/10??

Their graphics may be pretty, but they sure arent very accurate. (Atleast when it comes to snow maps)
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