MESOSCALE DISCUSSION 1303
   NWS STORM PREDICTION CENTER NORMAN OK
   0558 PM CDT SUN JUN 19 2011
   
   AREAS AFFECTED...PARTS OF CNTRL/SRN NEB
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 513...
   
   VALID 192258Z - 200030Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 513
   CONTINUES.
   
   A NEW WW EAST OF WW 513 WILL BE ISSUED SHORTLY.
   
   NEW VIGOROUS CONVECTIVE DEVELOPMENT NOW APPEARS UNDERWAY WITHIN A
   ZONE OF ENHANCED LOW/MID-LEVEL WARM ADVECTION DOWNSTREAM OF THE
   EVOLVING CLUSTER OF STORMS ACROSS NORTHEAST COLORADO AND THE
   SOUTHERN NEBRASKA PANHANDLE.  IN THE PRESENCE OF MODERATELY STRONG
   SHEAR AND INSTABILITY...A FEW SEVERE STORMS APPEAR LIKELY THROUGH
   00-02Z...BEFORE UPSTREAM CLUSTER BEGINS TO ACCELERATE EASTWARD
   TOWARD THE REGION.
   
   ..KERR.. 06/19/2011
   
   
   ATTN...WFO...GID...LBF...GLD...
   
   LAT...LON   41830058 41729941 41439904 41099855 40329911 40280094
               40150180 40960176 41830058