Jump to content
  • Member Statistics

    17,608
    Total Members
    7,904
    Most Online
    Vesuvius
    Newest Member
    Vesuvius
    Joined

Plains Weather Discussion


Recommended Posts

  • Replies 824
  • Created
  • Last Reply

This is looking good. Besides the first legit arctic front of the year...guidance hinting at shift in the PV across CA beyond day 10. I will believe it when I see it, but the medium range thread in the main W/F forum also suggesting big changes.

Yeah I just hope the ridging doesn't move to the other side of the globe like the 18z GFS suggests in the last panels. :(

Link to comment
Share on other sites

This is looking good. Besides the first legit arctic front of the year...guidance hinting at shift in the PV across CA beyond day 10. I will believe it when I see it, but the medium range thread in the main W/F forum also suggesting big changes.

Yeah I just hope the ridging doesn't move to the other side of the globe like the 18z GFS suggests in the last panels. :(

Link to comment
Share on other sites

Yeah I just hope the ridging doesn't move to the other side of the globe like the 18z GFS suggests in the last panels. :(

Yeah I saw that, but the GEFS has been all over the map the last few days regarding potential blocking and the placement of it. The Medium Range disco they were discussing the ECMWF weeklies (I have no access) which favor a -PNA type pattern setting up.

Link to comment
Share on other sites

Yeah I saw that, but the GEFS has been all over the map the last few days regarding potential blocking and the placement of it. The Medium Range disco they were discussing the ECMWF weeklies (I have no access) which favor a -PNA type pattern setting up.

Yeah all the models have been all over the place past Day 7 or so, probably even before that.

Brett Anderson drew the weeklies this morning

http://www.accuweath...-update-1/59941

Link to comment
Share on other sites

Nice to see the first legit arctic plunge of the winter. Still not that impressive in the big scheme, but I am not complaining. 00/06Z GFS determistic still remains one of the weakest with the overall northern stream wave as it cuts off much of the jet energy out over the 4 corners...it is an outlier amongst the EC/ECENS/GFSENS/CMC.

0z GFS Ensemble mean 850 @ 120 hrs:

post-999-0-53607100-1325935370.gif

0z ECMWF Ensemble mean 850 @ 120 hrs:

post-999-0-98335200-1325935369.gif

Link to comment
Share on other sites

Nice to see the first legit arctic plunge of the winter. Still not that impressive in the big scheme, but I am not complaining. 00/06Z GFS determistic still remains one of the weakest with the overall northern stream wave as it cuts off much of the jet energy out over the 4 corners...it is an outlier amongst the EC/ECENS/GFSENS/CMC.

0z GFS Ensemble mean 850 @ 120 hrs:

post-999-0-53607100-1325935370.gif

0z ECMWF Ensemble mean 850 @ 120 hrs:

post-999-0-98335200-1325935369.gif

12z GFS continues with it's prior runs of less cold air & the n wave to the north...sad thing is is the GFS has been more correct with alot of the systems this winter up here and out performing the ECM in my opinion...some have mentioned pattern change but i just don't see it but the same ole crap, couple days of cold & wind then it warms up.

Link to comment
Share on other sites

12z GFS continues with it's prior runs of less cold air & the n wave to the north...sad thing is is the GFS has been more correct with alot of the systems this winter up here and out performing the ECM in my opinion...some have mentioned pattern change but i just don't see it but the same ole crap, couple days of cold & wind then it warms up.

I wouldn't put much stock in the deterministic GFS here. Doubt it verifies.

Link to comment
Share on other sites

Like a mini blizzard here this morning, snowing & winds gusting over 35...too bad it'll be brief but it's awesome anyway.

Yeah this snow thing, whats with that?

I was driving to the high plains AMS conference with co-workers in Norton, KS today and we hit snow showers. With the 45+ MPH winds it looked wintry for once. Of course, as usual, most people were complaining.

Link to comment
Share on other sites

So good to see the Bering Sea high latitude block setup with an associated change in the Pacific storm track. ECMWF/CMC/UK are all a tick slower and more amplified with the ejecting eastern Pac. trough de-amplifying into a shortwave across the CONUS day 3-5. Could be a possible storm threat for portions of NE into IA along the arctic boundary.

post-999-0-68374300-1326483171.png

post-999-0-19779400-1326483187.gif

Medium range, while not completely cold, does look far more interesting than it has all winter with potential storm threats along the arctic boundary. The Pacific regime will be much more conducive to sharp shortwaves as they eject off the eastern Pac trough.

Link to comment
Share on other sites

Hey a bit of snow falling for me! Not optimistic about this storm, slotted between the good snows around Des Moines and the decent snow in NW Iowa.

We got about .3" of snow here. Paltry. But the arctic front was the first legit shot of arctic air here. Currently at zero with negative teens in NW Nebraska. The next few days are going to be challenging forecasts for much of the northern and central plains regarding exactly where the sharp baroclinic zone sets up.

Link to comment
Share on other sites

Archived

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

  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...