MESOSCALE DISCUSSION 1363
   NWS STORM PREDICTION CENTER NORMAN OK
   0639 PM CDT WED JUN 22 2011
   
   AREAS AFFECTED...NERN OREGON INTO CNTRL AND SRN IDAHO
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 222339Z - 230115Z
   
   ISOLATED SEVERE/MARGINALLY SEVERE STORMS WILL BE POSSIBLE THE NEXT
   SEVERAL HOURS. HAIL TO AROUND ONE INCH AND STRONG...GUSTY WINDS ARE
   EXPECTED WITH STRONGEST STORMS THROUGH AROUND 03Z.
   
   RADAR TRENDS OVER THE LAST HALF HOUR OR SO HAVE INDICATED A FEW
   STRONGER CELLS DEVELOPING OVER PORTIONS OF SRN IDAHO AND PARTS OF
   ERN OREGON AHEAD OF A VORTICITY MAX EJECTING OUT OF THE BASE OF
   UPPER TROUGH MOVING ONSHORE THE PACIFIC NORTHWEST. LATEST
   MESOANALYSIS INDICATES A MODERATELY UNSTABLE ENVIRONMENT WITH MLCAPE
   AROUND 1500-2000 J/KG AND AROUND 35 KT OF EFFECTIVE BULK SHEAR WHICH
   SHOULD BE SUFFICIENT TO SUSTAIN SOME STRONGER UPDRAFTS THE NEXT FEW
   HOURS. GIVEN STEEP LOW LEVEL LAPSE RATES AND HIGH
   TEMPERATURE/DEWPOINT SPREADS...STRONG GUSTY WINDS WOULD BE THE MAIN
   CONCERN WITH THE STRONGEST CELLS.  SOME MARGINALLY SEVERE HAIL CAN
   NOT BE RULED OUT EITHER WITH 500 MB TEMPERATURES AROUND -15C.
   
   ..LEITMAN.. 06/22/2011
   
   
   ATTN...WFO...RIW...PIH...MSO...BOI...OTX...PDT...
   
   LAT...LON   43551108 43171124 42711197 42031408 42061512 42171613
               42461702 43401834 43851883 44271902 45061860 46181694
               46551586 46581510 46321460 45591449 44631439 44261396
               44291312 44241266 44471207 44421126 44111103 43551108