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January Medium/Long Range: A snowy January ahead?


mappy
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28 minutes ago, psuhoffman said:

If the NS SW isn’t going to dig in behind we would have been better if it just wasn’t there at all. 

Yeah I made a post about this earlier. Looks to me like the 12z Euro made a step towards the GFS though wrt that NS energy.

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2 hours ago, yoda said:

I think if we set our goal as a pack refresher aka 2-3" we'll be fine.  

I love these events, these are the kind of events that make a winter really fun IMO.  

We have the euro, GFS, and ICON with 0.2 QPF, the CMC 0.1, and UK is a shutout. I really like where we stand for a light event without precip type issues. 

 

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24 minutes ago, clskinsfan said:

MJO passes through phase 1 with some amplitude then into phase 2 later in the month. Which is great. That is a nice signal for sustained cold. If we miss the next storm we will have other chances this month. Maybe after a relaxation?

GEFS.png

 

I'll believe it when I see it; it's been almost physically impossible for the MJO to spend any time in 7-8-1-2 since the start of our -PDOom period.  Note how the wave collapsed into the COD rather than be in 7.

 

Edit, for some reason I was thinking 7 was one of the "good" phases but looking at the correlations, not really.

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18 minutes ago, Paleocene said:

We needed it to phase with the southern stream wave for the whole thing to go nuclear and drop 3 feet on us

That, is the kind of mammoth styled blizzard I have long been yearning for you guys to get demolished by for years!

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8 minutes ago, cbmclean said:

I'll believe it when I see it; it's been almost physically impossible for the MJO to spend any time in 7-8-1-2 since the start of our -PDOom period.  Note how the wave collapsed into the COD rather than be in 7.

 

Edit, for some reason I was thinking 7 was one of the "good" phases but looking at the correlations, not really.

Spaghetti plots are all really good. Some with far less amplitude. But I think it might be a given at this point. We are exiting the COD into phase 8 right now. 

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18 minutes ago, SomeguyfromTakomaPark said:

I love these events, these are the kind of events that make a winter really fun IMO.  

We have the euro, GFS, and ICON with 0.2 QPF, the CMC 0.1, and UK is a shutout. I really like where we stand for a light event without precip type issues. 

 

I agree. If the jack is 2" and that jack is over me, then I really won't complain. If the jack is 25" and I get 6" then I'll be annoyed.

Dumb logic, but then again I'm not very logical when it comes to snow.

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I'd be more than fine with 2". It'll just keep the snowpack healthy.
I was looking for a BamWX video about the upcoming "blizzard" but I think he deleted his YT channel. I wonder why.

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2 minutes ago, WEATHER53 said:

Well a lot of unusual stuff has been happening recently so this would be another for us ala 1987 where it snows every time it possibly can  

Now that we have the cold, all we need is our year-round, every 4-5 days (on average) precip event.

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Transitioning to the long range again... the EPS shifted the trough axis east in the day 10-15 period.  The AO/NOA is relaxing but looks neutral not hostile.  The ridge does retrograde into the WPO domain, which as Chuck pointed out is not ideal, however I've noted guidance continues to indicate troughing in the central pacific underneath the WPO and EPO ridge.  This creates a significantly different effect than when the ridge in the central pacific is full latitude being fed from the tropics.  It's a much less hostile pacific look, more neutral in terms of its effects downstream on North America.  It will force the ridging to creep into western N Amer. more which prevents a god awful -PNA digging for gold down the west coast, and also directs cold shots a little further east.  

Lastly, not only is this not a hostile look IMO, but its even a pretty good one if you have cold established across N America ahead of this pattern.  In recent years when we did get a mediocre pattern it was often coming off a torch which just doesn't work...but going from a great pattern that establishes cold a mediocre longwave pattern is much more likely to produce snow.  

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