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December Medium/ Long Range


Terpeast
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The bolded is the bottom line. For a lot of us, we have had bupkis so far. On top of many years of...the same.  Watching weeks go by where in theory it might have had a chance to snow and getting nothing is less than ideal.  In any event, maybe more posters who have actually seen measureable snow can keep putting up snapshots of OP runs at range showing deep reds of over north america. That is the truly helpful stuff. 
One step closer...dab05b4930e2c365f2b5250c374550b5.gif

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1 minute ago, JenkinsJinkies said:

I'm referring to the weekend storm, though they're also seeing the long ranges potentially punting most of January.

Yeah I wouldn’t be so quick to punt January. Ensembles/weeklies show the PNA ridge building back

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9 hours ago, CAPE said:

The last few runs of the Euro weeklies are depicting an increasingly colder look for early to mid January.

1736640000-wxIcszxafMA.png

GFSX and CMC weeklies are advertising the same general h5 look for the first half of Jan. All 3 are hinting at +heights building into the NAO space.

The Mongolian resource has stayed in play with no shutdown looming and reasserts again this weekend .  Just gotta get a southern Miller A and not the to our west junk that the models can’t handle 

 

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14 minutes ago, CAPE said:

12z CMC ens gets the longwave pattern back to a solid look by Jan 1. Temps are even a bit below normal. Probably a little too soon, but majority of guidance is moving towards this in the LR.

1735732800-luDuG6vjip0.png

It's rushing it, I don't get back until the 4th 

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1 hour ago, CAPE said:

12z CMC ens gets the longwave pattern back to a solid look by Jan 1. Temps are even a bit below normal. Probably a little too soon, but majority of guidance is moving towards this in the LR.

1735732800-luDuG6vjip0.png

Yeah, that looks plenty good enough. Hopefully, the GFS is incorrect in the magnitude and expansive area of above normal Temps in North America preceding this output. We definitely don't want a good pattern be ruined by not enough cold coming down from Source Region. We should be fine as long as CPF gets established even if Canada is torched ala GFS as it should cool rapidly. 

   It looks as though some blocking is trying to take shape in this Output as well. We really would want that after CPF fills in the cold as we don't want a 01-02 situation.

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5 hours ago, WEATHER53 said:

The Mongolian resource has stayed in play with no shutdown looming and reasserts again this weekend .  Just gotta get a southern Miller A and not the to our west junk that the models can’t handle 

 

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?  

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32 minutes 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?  

Good question. Don't expect a logical answer.

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5 hours ago, CAPE said:

12z CMC ens gets the longwave pattern back to a solid look by Jan 1. Temps are even a bit below normal. Probably a little too soon, but majority of guidance is moving towards this in the LR.

1735732800-luDuG6vjip0.png

The latest Euro Weeklies today show a workable pattern developing by the beginning of January. This run shows the first 3 weeks of next month should at least give us chances.

IMG_7986.png

IMG_7987.png

IMG_7988.png

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2 minutes ago, Blizzard of 93 said:

The latest Euro Weeklies today show a workable pattern developing by the beginning of January. This run shows the first 3 weeks of next month should at least give us chances.

IMG_7986.png

IMG_7987.png

IMG_7988.png

The extended products have been pretty persistent with the idea of a cold period in January. We shall see if we get lucky with coincidence of antecedent cold and a well timed wave.

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