MESOSCALE DISCUSSION 0654
   NWS STORM PREDICTION CENTER NORMAN OK
   1104 AM CDT THU MAY 16 2013
   
   AREAS AFFECTED...PORTIONS OF NRN/ERN VA...SRN MD
   
   CONCERNING...OUTLOOK UPGRADE 
   
   VALID 161604Z - 161700Z
   
   SUMMARY...A CATEGORICAL UPGRADE TO SLIGHT RISK IS PLANNED FOR THE
   1630Z OUTLOOK TO ADDRESS AN INCREASING CONCERN FOR SVR WIND GUSTS
   THIS AFTERNOON.
   
   DISCUSSION...STRONG HEATING S OF A W/E-ORIENTED MID/HIGH-LEVEL CLOUD
   BAND WILL CONTRIBUTE TO DESTABILIZATION THROUGH THE DAY...WITH
   HIGH-BASED STORM DEVELOPMENT EXPECTED THIS AFTERNOON OVER THE SRN
   FRINGES OF THE CLOUD BAND. WITH 20-40 KT OF LOW/MID-TROPOSPHERIC
   UNIDIRECTIONAL WLY FLOW...CLUSTERS OF STORMS WITH DMGG WIND GUSTS
   WILL BE POSSIBLE...WARRANTING THE CATEGORICAL UPGRADE TO SLIGHT
   RISK. COLLABORATION WITH THE STERLING WFO HAS TAKEN PLACE REGARDING
   THIS UPGRADE.
   
   ..COHEN/WEISS.. 05/16/2013
   
   
   ATTN...WFO...AKQ...LWX...RNK...
   
   LAT...LON   38567820 38667706 38617613 38397566 37847592 37617697
               37687842 37917886 38267876 38567820