Jump to content
  • Member Statistics

    17,587
    Total Members
    7,904
    Most Online
    LopezElliana
    Newest Member
    LopezElliana
    Joined

February 2013 mid-long range disco thread


Fozz

Recommended Posts

  • Replies 2.3k
  • Created
  • Last Reply

You may be right, but would you rather have a shot with good dynamics or the gfs trend colder, or have 0 qpf and no shot? 

Obviously the former, but right now being realistic it does not look great for us. As it stands now, there is probably only a 20% chance we get more than 2".

Link to comment
Share on other sites

IN THE WAKE OF THE MIDWEST STORM...A LARGE SCALE TROUGH WILL
REMAIN IN PLACE WITH ENERGY CONCENTRATED BACK TOWARD THE SOUTHWEST
STATES. THE BASE OF THE TROUGH WILL SWING EASTWARD...INDUCING A
SURFACE LOW THAT THE GLOBAL MODELS TRACK FROM THE WESTERN GULF
COAST TO THE CAROLINAS. THE NAM AND RELATED SREF OUTPUT NOW MARK
THE SLOW EDGE OF THE GUIDANCE ALOFT...BUT 06Z AND 12Z GUIDANCE
CERTAINLY HAS TRENDED SLOWER. THIS INCLUDES THE UKMET WHICH
SUPPORTS OUR CHOICE OF THE 06Z GFS AS A MIDDLE GROUND. THE ECMWF
SHOWED THE GREATEST RUN TO RUN CHANGE...AS IT HAD BEEN MARKING THE
FAST END OF THE SPECTRUM AND THE 12Z RUN NOW JOINS THE NAM/SREF AT
THE SLOW END.

IT IS THE SURFACE WHERE THE NAM IS A STRONG OUTLIER...IN PRODUCING
A LOW TRACK THAT STAYS WEST OF THE APPALACHIANS AND MUCH FARTHER
INLAND THAN THE GLOBAL MODELS. EVEN THE CANADIAN AND RECENT GFS
RUNS...WHICH SUPPORT THE NAM IN OTHER RESPECTS...KEEP LOW PRESSURE
CONFINED TO THE PRE-EXISTING FRONTAL ZONE THAT WILL BE IN PLACE
ACROSS THE SOUTHERN/SOUTHEASTERN STATES. THE GFS IS THOUGHT TO BE
DEEPENING THE SURFACE LOW SOMEWHAT PREMATURELY...WITH DEEPENING
MORE LIKELY TO WAIT UNTIL THE SYSTEM REACHES THE WESTERN ATLANTIC
ON DAY 4. BUT THE 06Z AND 12Z GFS BETTER REPRESENT THE OVERALL
TREND WITH RESPECT TO TRACK. OVER THE PAST FEW RUNS...THE UKMET
SURFACE LOW TRACK HAS TRENDED CLOSER TO THE GFS AND GEFS
MEAN...AND NOW THE 12Z ECMWF SHARES THIS TREND ALTHOUGH
SIGNIFICANT DIFFERENCES STILL EXIST BEYOND DAY 3. IT IS CURRENTLY
DIFFICULT TO FIND ANY OPERATIONAL MODELS THAT CLOSELY FIT OUR
CONCEPTUAL MODEL...BUT IN COORDINATION WITH THE HPC MEDIUM RANGE
PRESSURE DESK...WE FAVOR THE 06Z GFS SURFACE LOW TRACK WITH JUST A
SLIGHT ADJUSTMENT TOWARD THE SOUTH/EAST AND WITH DELAYED
STRENGTHENING UNTIL REACHING THE WESTERN ATLANTIC.

 

Link to comment
Share on other sites

i think it's gonna be important to see where that front stalls out in the south given that a wave will be developing along it.  this could also be weenie'ism, but i'd think the increasing snow cover to the north might help in keeping temps a little lower than advertised behind the monday system.  i know...it's a stretch, but who really knows how all this plays into the details.

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...