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Jan 11-12 Model/Forecasting Discussion


Ji

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True enough. The NOGAPS surely is not the big, huge hit it has shown the past few days, but it's clearly at this point still well west of the GFS and overall looks better. Whatever that may be worth. Not saying the GFS will be wrong, but I wouldn't quite say the NOGAPS is suddenly in the GFS camp right now either.

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Agreed. The model solutions provided by the NOGAPS are at times very confusing....to say the least....

I'm not familiar with the vertical resolution of the NOGAPS but as was said before the ultimate goal of the NOGAPS for the Navy may serve its purpose better than it serves the purpose of forecasting winter storms..

I have read your posts....

Are you a numerical modeler--perhaps a graduate student doing some modeling?thumbsupsmileyanim.gif

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the surface result is the same

remember, Nogaps has had the amped up solution for many runs in a row

the fact that it looses it now may be a red flag

not quite...

this is

https://www.fnmoc.navy.mil/wxmap_cgi/cgi-bin/wxmap_single.cgi?area=ngp_namer&dtg=2011010812∏=prpτ=090&set=Core

not equal to this

http://www.nco.ncep.noaa.gov/pmb/nwprod/analysis/namer/gfs/12/images/gfs_slp_090l.gif

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you are right, but the NOGAPS way of screwing us is my fear not the GFS. The nogaps tracks the h5 low way too far north, over central PA. Basically the trough from the old southern wave is north of us before the energy catches up from the west so everything gets going too late. That is the bigger threat then this way OTS garbage the GFS is spitting out. The GFS did not bother me one bit, the NOGAPS solutions is more troublesome.

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you are right, but the NOGAPS way of screwing us is my fear not the GFS. The nogaps tracks the h5 low way too far north, over central PA. Basically the trough from the old southern wave is north of us before the energy catches up from the west so everything gets going too late. That is the bigger threat then this way OTS garbage the GFS is spitting out. The GFS did not bother me one bit, the NOGAPS solutions is more troublesome.

Yeah, bro... fear the NOGAPS.

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I would never trust the NOGAPS at the surface.

but comparing apples to apples (prior runs of Nogaps to new run of Nogaps) it suggests bad things

look, we are 3+ days away from this "thing" in the DCA/BWI area

a lot can still go wrong, or a lot can go right

GFS didn't bother me....now I'm a bit bothered, that's all

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you are right, but the NOGAPS way of screwing us is my fear not the GFS. The nogaps tracks the h5 low way too far north, over central PA. Basically the trough from the old southern wave is north of us before the energy catches up from the west so everything gets going too late. That is the bigger threat then this way OTS garbage the GFS is spitting out. The GFS did not bother me one bit, the NOGAPS solutions is more troublesome.

agreed...it's not great for DC/BWI...but it is a closer to the NAM than the GFS....and it is still quite a great run for New England...where the GFS is straight out to sea....maybe my analysis is a little too broad sometimes...

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you are right, but the NOGAPS way of screwing us is my fear not the GFS. The nogaps tracks the h5 low way too far north, over central PA. Basically the trough from the old southern wave is north of us before the energy catches up from the west so everything gets going too late. That is the bigger threat then this way OTS garbage the GFS is spitting out. The GFS did not bother me one bit, the NOGAPS solutions is more troublesome.

You sure? I'd definitely wait for the crucial NOGAPS ensembles and the more important 18z NOGAPS first.

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but comparing apples to apples (prior runs of Nogaps to new run of Nogaps) it suggests bad things

look, we are 3+ days away from this "thing" in the DCA/BWI area

a lot can still go wrong, or a lot can go right

GFS didn't bother me....now I'm a bit bothered, that's all

that's fair....the upper level energy being farther north is not going to be great for DCA/BWI....

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I would never trust the NOGAPS at the surface.

the problem isnt the surface its H5, Nogaps is still amped up but it tracks the H5 low way north of previous runs, instead of tracking over VA it takes the H5 low over Ohio into central PA then over NYC. Its not even close to a good track for this area at H5 and a huge shift from previous runs. Don't kid yourself that the problem is just the surface. Of course it is the NOGAPS so unless the GGEM/UKMET/Euro shows a similar solution then I would not worry too much. If one or more of them follow the NOGAPS in tracking the H5 low north of us then we are in trouble.

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but comparing apples to apples (prior runs of Nogaps to new run of Nogaps) it suggests bad things

look, we are 3+ days away from this "thing" in the DCA/BWI area

a lot can still go wrong, or a lot can go right

GFS didn't bother me....now I'm a bit bothered, that's all

You came into today a bit bothered because you didn't get the advertised snow today so my guess is that you may be a little more hyper critical at this point perhaps?

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the problem isnt the surface its H5, Nogaps is still amped up but it tracks the H5 low way north of previous runs, instead of tracking over VA it takes the H5 low over Ohio into central PA then over NYC. Its not even close to a good track for this area at H5 and a huge shift from previous runs. Don't kid yourself that the problem is just the surface. Of course it is the NOGAPS so unless the GGEM/UKMET/Euro shows a similar solution then I would not worry too much. If one or more of them follow the NOGAPS in tracking the H5 low north of us then we are in trouble.

Take deep breaths, maybe drink a cup of hot tea.

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I have read your posts....

Are you a numerical modeler--perhaps a graduate student doing some modeling?thumbsupsmileyanim.gif

close...i have my PhD in atmospheric science, but forecasting is not near my specialty...more of a hobby at this point in my career...

more of a land surface modeler / data assimilation / remote sensing person....

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:lol:

Phineas, don't even start your attacks on me

a model that has had 6-8 runs showing a significant storm, whether it be the Euro or Nogaps, is jumping ship on us

GFS hasn't really gotten on board

this could be random noise, or it may not be considering the kind of winter we've had

this is a wx Board and we discuss models, for better or worse

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the problem isnt the surface its H5, Nogaps is still amped up but it tracks the H5 low way north of previous runs, instead of tracking over VA it takes the H5 low over Ohio into central PA then over NYC.

The seasonal trend is really repetitive...each storm is setting up the same as if on rails

like slot cars. GFS gives 0 to 2 1 to 3 or 2 to 4 depending on how it unfolds.

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