Jump to content
  • Member Statistics

    17,604
    Total Members
    7,904
    Most Online
    ArlyDude
    Newest Member
    ArlyDude
    Joined

Threat Jan 25-28th time fram. Possible Miller A


IsentropicLift

Recommended Posts

  • Replies 991
  • Created
  • Last Reply

Haven't had a chance to read every post in the thread so I apologize if this has already been touched on, but the NOGAPS is likely showing it's progressive bias not necessarily irt to the actual surface low, but probably progressing the HP out to quickly thus allowing the system to trudge North sooner thus the western position of the actual surface low.

I was touching on that exact thing earlier in the thread. Im glad im not alone in my thinking.

Link to comment
Share on other sites

The GFS seems wacky at H5. For some reason throughout the progression of the runs it keeps all the shortwaves distinct and separate from one another. You would think a phase or consolidation of the energy would occur based on the setup of h5, like what the euro shows. On a positive note I love the trends regarding the blocking upstream, models seem to keep intensifying and making this feature more pronounced which will have several impacts. One it will prevent the HP from slipping out to sea and you would think it would force the northern stream energy/shortwave down into the base of the trough and phase with the sw as it continues its progression east. The increased ridging or positive PNA out west would also aid in this process. One thing I find hard to believe is that the sw energy will lag especially with the fast flow.

Link to comment
Share on other sites

Yeah i realize that ..but you do not want to see this model this far to the west...it should be more SE with its low pressure area ...due to its bias...however its not...so chances are this is going to be a very amplified system...

It's one signal, but doesn't have much support right now.

Link to comment
Share on other sites

The GFS seems wacky at H5. For some reason throughout the progression of the runs it keeps all the shortwaves distinct and separate from one another. You would think a phase or consolidation of the energy would occur based on the setup of h5, like what the euro shows. On a positive note I love the trends regarding the blocking upstream, models seem to keep intensifying and making this feature more pronounced which will have several impacts. One it will prevent the HP from slipping out to sea and you would think it would force the northern stream energy/shortwave down into the base of the trough and phase with the sw as it continues its progression east. The increased ridging or positive PNA out west would also aid in this process. One thing I find hard to believe is that the sw energy will lag especially with the fast flow.

Good post and analysis, IMO.

Link to comment
Share on other sites

I don't know if this was brought up or not and apologize if it was, but there was a pacific dropsonde mission that made it into the 12z GFS run. Other modeling centers could have ingested that information if they wanted it, don't know if they did or not. Either way, there are so many different stream short waves with the upcoming system I doubt much model resolution before Sunday.

Link to comment
Share on other sites

I don't know if this was brought up or not and apologize if it was, but there was a pacific dropsonde mission that made it into the 12z GFS run. Other modeling centers could have ingested that information if they wanted it, don't know if they did or not. Either way, there are so many different stream short waves with the upcoming system I doubt much model resolution before Sunday.

Thanks for the info, Tony. I'd forgot to check that. They'll be flying another mission for the 12z runs tomorrow as well.

FWIW, at least for tropical sonde missions, the ECMWF and UKMET also ingest the sonde data.

Link to comment
Share on other sites

Thanks for the info, Tony. I'd forgot to check that. They'll be flying another mission for the 12z runs tomorrow as well.

FWIW, at least for tropical sonde missions, the ECMWF and UKMET also ingest the sonde data.

The GFS may go its own way by itself because of its model physics. I just saw the GEFS plumes for Philly, what a mess.

If the 00z run changes and the 12z run then changes back or again, I guess those sondes are having some effect. This is a project to try to get the most bang for the buck in the medium range. It started this month in the Pacific. As far as I know those mission messages are going to be carried on the admnfd(s) when they do them.

Link to comment
Share on other sites

I am simply applying its bias....it should be further to the south east in this scenario with its progressive nature..that is the bias. I have seen pro mets from John (typhoon tip) to snowgoose as well as other adhere this same thing in the past....

If this model is NW of other models it generally flags the guidance that is too far to the east....

This is not something i have made up ...this is something that has been a generally accepted concept....

And again ..I will give a model credit when credit is due...

I remember quite well a post from even earthlight not that long ago ...that stated the ECM bowed to the NOGAPS...

Its a very valuable tool when used properly....

Time will tell ...;)

It's pointless to argue about this at this timerange though you do have a point.

What Im liking is the synoptic resemblance to PD2 that this has. Not fooling myself into thinking we get that much snow, but even half that amount would be big.

Link to comment
Share on other sites

The GFS may go its own way by itself because of its model physics. I just saw the GEFS plumes for Philly, what a mess.

If the 00z run changes and the 12z run then changes back or again, I guess those sondes are having some effect. This is a project to try to get the most bang for the buck in the medium range. It started this month in the Pacific. As far as I know those mission messages are going to be carried on the admnfd(s) when they do them.

Im thinking a middle of the line compromise solution is what will verify. That is something I've seen happen quite a bit this winter.

Link to comment
Share on other sites

The GFS may go its own way by itself because of its model physics. I just saw the GEFS plumes for Philly, what a mess.

If the 00z run changes and the 12z run then changes back or again, I guess those sondes are having some effect. This is a project to try to get the most bang for the buck in the medium range. It started this month in the Pacific. As far as I know those mission messages are going to be carried on the admnfd(s) when they do them.

:yikes:

Not much of a signal there beyond "there will be a trough."

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

Guest
This topic is now closed to further replies.
  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...