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December Medium/ Long Range


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15 hours ago, cbmclean said:

What are you using to visualize the state of the "Mongolian resource".  After it reasserts itself this weekend, what is the time frame you believe it will start to impact the sensible weather in the eastern conus?  

500 mb current maps and then allow 8 ish days for it to arrive here when the set up is correct there.  Does not matter much what’s downstream, that higher  pressure will work down here.

This method allows for observation of actual current weather and I can forecast from decades of observational experience and outcomes what will occur next with this aspect .  It’s not microscopic with 30 outcomes changing every 6 hours.  It’s a binocular style approach covering just that one single aspect that works very effectively for outcomes in our region as yo cold air 

Thank you for asking 

 

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26 minutes ago, WEATHER53 said:

500 mb current maps and then allow 8 ish days for it to arrive here when the set up is correct there.  Does not matter much what’s downstream, that higher  pressure will work down here.

This method allows for observation of actual current weather and I can forecast from decades of observational experience and outcomes what will occur next with this aspect .  It’s not microscopic with 30 outcomes changing every 6 hours.  It’s a binocular style approach covering just that one single aspect that works very effectively for outcomes in our region as yo cold air 

Thank you for asking 

 

Legit question not trying to fight trying to learn. The correlation to cold is legitimate, however doesn’t it depend on the mid latitude long wave pattern across North America?  That cold does not necessarily have to get directed here, and so how do you factor in that part of the equation?  Thanks. 

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32 minutes ago, psuhoffman said:

Legit question not trying to fight trying to learn. The correlation to cold is legitimate, however doesn’t it depend on the mid latitude long wave pattern across North America?  That cold does not necessarily have to get directed here, and so how do you factor in that part of the equation?  Thanks. 

I dont   know the mechanics but when Mongo is in the pink and especially the deeper pinks/reds  then that cold air almost always bullies its way to us .  And again  Im not sure why but when the long wave is as you stated, the Mongo region is in the blue already anyway .  Probably not cause and effect yet it is consistent 

Many of us who started in 60’s didn’t have the tools that exist now. We kinda had to learn how to forecast from the ground up.  It’s not exactly appropriate to this  discussion but may shed light I  think  on how we  end up in “conflict” at times. 
Thanks  for the question

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4 hours ago, psuhoffman said:

Best case scenario is when the pac jet starts to retract we get enough cross polar flow to replenish our cold source quickly. Worst case would be we don’t and we waste 1-2 weeks of a better long wave pattern with unworkable temps then by the time it’s getting cold enough the pattern is breaking down.

The synergy between the jet extension and the -------PDO/SER is killer for us because when Canada starts to reload, the SER goes all Gandalf "YOU SHALL NOT PASS" and slows /prevents the cold from reaching us.  This year there seems to be a tendency for -EPO/+TNH which we have seen can have the capability of squashing the SER so there may be reason, if not for optimism, at least reduced pessimism: maybe it will be different this year.

Of course we might just end up back to cold and dry, but I personally prefer that to flametorch.

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4 minutes ago, NorthArlington101 said:

I guess it's nice to know it can still be cold... but so annoying we can't get things to line up.

It has been frustrating however it looks like things could be lining up for a 2-3 week period after New Year's. Teleconnections look good. Hopefully things stay on track. Then it's just timing and luck as you know. EPO goes negative around 12/29 at the same time PNA goes positive. Also looks like AO head towards negative with a slightly negative NAO. Just give us a decent shot at a couple moderate events with a light event or 2 thrown in during January. That's all I ask for!

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1 hour ago, psuhoffman said:

In return from Revelstoke on the 4th so the timing checks out.  Euro 15 day snowfall…there are still some rooms available at the lodge lol 

SdWNASo.jpeg

Yeah I couldn’t book any major trips this year because I was going through some stuff earlier and now I just started my new job. But keeping an eye on canaan when it gets cold again, and I have the points saved up for another trip out west next year. 

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I believe you're thinking of Christmas Eve 2022 when the high was 20 but it felt much colder.  The last Arctic outbreak I can remember was January 5 and 6th of 2018 when the high temperature failed to reach 20 in Baltimore.   The last day with a sub-10 high was January 19 of 1994 when the high was 5.  The lowest high ever (3 F) occurred on February 10, 1899 during "the greatest Arctic outbreak in history" according to David Ludlum.  Temperatures fell to 0 F along the beaches of the Gulf Coast and ice flowed from the mouth of the Mississippi River into the Gulf ...  

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