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December 2022 Medium-Long Range Disco


WxUSAF
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9 minutes ago, CAPE said:

We want to see sharpness in the trough, and for it dig to our SW. This run does neither. Too progressive and leads to a low forming wayyy offshore.

You don’t want a perfect solution 9 days out the signal is there for a storm that’s all you can ask for at this point in time. 

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12 minutes ago, WxUSAF said:

Hot damn. This checks all the boxes for big east coast winter storm.
 

Elongated PV toward the 50-50 region? Check.

-NAO in Baffin Island region? Check.

-AO? —-AO!

+PNA with inland ridge axis? Check.

Big shortwave diving south? Check.

 

8EF4A558-BCC6-4AFB-8DFA-FF0AFF67FDC1.png

There has to be something a miss if the cluster is off shore.  trough not deep enough?  maybe the surface depiction hasn't caught up with h5 depiction. 

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7 minutes ago, BristowWx said:

There has to be something a miss if the cluster is off shore.  trough not deep enough?  maybe the surface depiction hasn't caught up with h5 depiction. 

Ensembles work by perturbing the intensity and location of features to account for errors and uncertainty. At D7-8, it’s perfectly normal to have a much broader area of low pressure than what will ultimately occur. Plus, always be a little more skeptical when a model suite’s solutions are playing up its biases:

1. Progressive bias for GFS

2. over amplified bias for Euro

3. wonky 2m temps for GGEM 

 

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Two days ago the euro had San Diego at 10 degrees and the gfs has had a different solution every run and some on here are still shaking in their boots over the 6z gfs? I mean I'm an idiot and even I can tell the models are working their way towards something and are a few days away from any sort of consistency 

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3 minutes ago, WxUSAF said:

Ensembles work by perturbing the intensity and location of features to account for errors and uncertainty. At D7-8, it’s perfectly normal to have a much broader area of low pressure than what will ultimately occur. Plus, always be a little more skeptical when a model suite’s solutions are playing up its biases:

1. Progressive bias for GFS

2. over amplified bias for Euro

3. wonky 2m temps for GGEM 

 

Roger. I appreciate the info.  Didn't know the wonky 2m temp one but it makes sense having seen what it spits out. 

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6 minutes ago, poolz1 said:

All 3 globals with a solid signal for scan ridging to return D12-15.  With the MJO forecast to pretty much mirror its last rotation you have to wonder if we set this whole pattern progression up again early Jan.

1672466400-b5JHr0Uqlkg.png

It seems we may get a RELOAD after a slight relaxation. No signs of a 'close the blinds' period. B)

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4 minutes ago, CAPE said:

It seems we may get a RELOAD after a slight relaxation. No signs of a 'close the blinds' period. B)

Would be pretty sweet considering the time of year and we would have a much better base state to start from.  Nothing in the NH needs major work and isn't a terrible look as it is. 

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1 hour ago, WxUSAF said:

Ensembles work by perturbing the intensity and location of features to account for errors and uncertainty. At D7-8, it’s perfectly normal to have a much broader area of low pressure than what will ultimately occur. Plus, always be a little more skeptical when a model suite’s solutions are playing up its biases:

1. Progressive bias for GFS

2. over amplified bias for Euro

3. wonky 2m temps for GGEM 

 

Hypothetically given these known biases wouldn’t the GGEM be the best model for this setup for the general progression? 

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16 minutes ago, CAPE said:

It seems we may get a RELOAD after a slight relaxation. No signs of a 'close the blinds' period. B)

Any signs of the "quit weather learn to macramé" signal noted yesterday with anomalous warmth even with a trough east/ridge west combo as mentioned by PSU? 

I did note the kind of positive-ish EPO.

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8 minutes ago, poolz1 said:

Would be pretty sweet considering the time of year and we would have a much better base state to start from.  Nothing in the NH needs major work and isn't a terrible look as it is. 

Things looking good moving into Jan.  PV still under pressure even though it may temporarily get a little stronger. Scandi High and good support for a + PNA. Also looks active.   Exciting possibilities next week and later in the month.  EPS had some really deep members at this range for the 23 rd. Could be a rather intense cyclone along with very high winds.  

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2 hours ago, WxUSAF said:

Hot damn. This checks all the boxes for big east coast winter storm.
 

Elongated PV toward the 50-50 region? Check.

-NAO in Baffin Island region? Check.

-AO? —-AO!

+PNA with inland ridge axis? Check.

Big shortwave diving south? Check.

 

8EF4A558-BCC6-4AFB-8DFA-FF0AFF67FDC1.png

Oooooo! I want to play too!!
 

Thanks dude. Now my mind is right and I can carry on with my day. :lol:

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4 minutes ago, cbmclean said:

Any signs of the "quit weather learn to macramé" signal noted yesterday with anomalous warmth even with a trough east/ridge west combo as mentioned by PSU? 

I did note the kind of positive-ish EPO.

Some advertised relaxation in the -EPO/WPO yes, but at the same time the PNA is going positive. Still an overall favorable look at day 15, and ofc that's way out there so we just can't know.

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