MESOSCALE DISCUSSION 1617
   NWS STORM PREDICTION CENTER NORMAN OK
   0555 PM CDT THU JUL 14 2011
   
   AREAS AFFECTED...NWRN-NRN KS/SWRN-SRN NEB
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 142255Z - 142330Z
   
   A NEW SEVERE TSTM WATCH MAY BE NEEDED ACROSS NWRN-NRN KS AND
   SWRN-SRN NEB...TO THE EAST OF WW 643.
   
   REGIONAL RADAR IMAGERY SHOWED A SMALL CLUSTER OF TSTMS HAD DEVELOPED
   SINCE 21Z OVER NWRN KS /THE COUNTIES OF SHERIDAN...
   GRAHAM...NORTON...AND ERN DECATUR/.  THIS ACTIVITY WAS FORMING ALONG
   AN AREA OF LOW LEVEL CONVERGENCE PER OBJECTIVE ANALYSES AND WITHIN A
   WELL MIXED BOUNDARY LAYER GIVEN STRONG SURFACE HEATING AND WEAKENED
   INHIBITION.  ASCENT ATTENDANT TO A MIDLEVEL IMPULSE TRACKING ENEWD
   ACROSS ERN CO AND AN APPARENT LEAD IMPULSE CURRENTLY MOVING THROUGH
   SWRN NEB/NWRN KS APPEAR TO BE AIDING DEVELOPMENT OF THE NWRN KS
   STORMS.  A MORE UNSTABLE AIR MASS WITH NNEWD EXTENT TOWARD CENTRAL
   NEB AND NORTH CENTRAL KS AND STRONGER EFFECTIVE BULK SHEAR /AROUND
   30 KT/ SUGGESTS THE ONGOING STORMS COULD BECOME SEVERE AS THEY MOVE
   INTO A MORE FAVORABLE ENVIRONMENT FOR SUSTAINED ROBUST...ORGANIZED
   UPDRAFTS.  CONVECTIVE TRENDS WILL BE MONITORED FOR INTENSIFICATION
   AND THE POTENTIAL NEED FOR A WATCH.
   
   ..PETERS.. 07/14/2011
   
   
   ATTN...WFO...GID...LBF...DDC...GLD...
   
   LAT...LON   39040038 39210129 40750080 41290005 41179908 40279889
               39179911 38949927 39040038