• 15th March 2010 - By Kelton Halbert

    Honestly this is kind of a boredom post, but I decided to take a look at the GFS models for this weekend and look at the thunderstorm chance. Right now, because of how far out this event is the SPC has not issued any convective outlooks. However, they do think that more than one severe event is possible later in the week, and that the real determining factor is moisture. I will try to keep an eye on the models through the week, partly because I have nothing else to do, and partly because I am interested in how this pans out! Here is a bit of info from the SPC and some graphics from the GFS model. I will be holding out for that moisture needed!

    DAY 4-8 CONVECTIVE OUTLOOK
       NWS STORM PREDICTION CENTER NORMAN OK
       0352 AM CDT MON MAR 15 2010
    
       VALID 181200Z - 231200Z
    
       ...POTENTIAL TOO LOW TO DELINEATE A SEVERE THREAT AREA...
    
       THE LARGE-SCALE PATTERN EVOLUTION THROUGH THE COMING WEEK STILL
       APPEARS UNLIKELY TO ALLOW GULF OF MEXICO BOUNDARY LAYER MODIFICATION
       SUPPORTIVE OF A SUBSTANTIVE INLAND RETURN FLOW THROUGH AT LEAST LATE
       NEXT WEEKEND.  THIS SHOULD GREATLY LIMIT CONVECTIVE POTENTIAL
       THROUGH THE PERIOD.  HOWEVER...MEDIUM RANGE GUIDANCE CONTINUES TO
       INDICATE THAT SIGNIFICANT AMPLIFICATION OF THE UPPER FLOW NEAR THE
       PACIFIC COAST LATE THIS WEEK COULD YIELD A STRONG/INTENSIFYING SHORT
       WAVE IMPULSE THAT DIGS THROUGH THE SOUTH CENTRAL PLAINS...BEFORE
       SWEEPING EASTWARD INTO THE SOUTHEASTERN U.S. NEXT WEEKEND.
       CONSIDERABLE SPREAD DOES EXIST AMONG THE MODELS AND MODEL ENSEMBLES
       CONCERNING THIS FEATURE.  BUT IT IS WITHIN THE REALM OF POSSIBLE
       SOLUTIONS THAT STRONG LIFT AND DIFFERENTIAL THERMAL ADVECTION...IN
       THE PRESENCE OF AT LEAST WEAK MOISTENING AND STRENGTHENING DEEP
       LAYER SHEAR...COULD OCCUR ACROSS PARTS OF THE SOUTH CENTRAL PLAINS
       INTO THE LOWER MISSISSIPPI VALLEY/CENTRAL GULF COAST REGION LATE
       FRIDAY THROUGH SATURDAY.  SO ...THE RISK FOR SEVERE STORMS MAY NOT
       BE COMPLETELY NEGLIGIBLE.
    
       ..KERR.. 03/15/2010
    
    
    So, I will keep an eye on this, but as of now it doesn't look like an "oh my gosh" 
    scenario. Keep checking back for updates!
    
    
    UPDATE:
    THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.  
    .DAY ONE...TODAY AND TONIGHT  
    NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.  
    .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY  
    A STRONG COLD FRONT IS EXPECTED TO PASS THROUGH MIDDLE TENNESSEE 
    SATURDAY OR SATURDAY EVENING. IT IS POSSIBLE THAT SEVERE STORMS MAY 
    OCCUR WITH THIS SYSTEM.
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