MESOSCALE DISCUSSION 1477
   NWS STORM PREDICTION CENTER NORMAN OK
   0801 PM CDT SAT JUL 02 2011
   
   AREAS AFFECTED...NERN OH / NWRN PA
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 030101Z - 030200Z
   
   SOME INCREASING THREAT FOR DMGG WINDS APPEARS PLAUSIBLE LATER THIS
   EVENING.  A SEVERE WW MAY NEED TO BE CONSIDERED IN THE NEXT HOUR OR
   TWO FOR NERN OH AND NWRN PA.
   
   RADAR MOSAIC SHOWS AN INTENSIFYING LINEAR CONGLOMERATE BAND OF
   STORMS ORGANIZING INTO A FORWARD PROPAGATING BOWING SEGMENT/MCS
   ACROSS SWRN ONTARIO WITH BACKBUILDING STORMS IN SERN LOWER MICH. 
   WITH AN UPPER ANTICYCLONE CENTERED OVER THE OZARKS...ONGOING STORM
   COMPLEX IS CRESTING THE UPPER RIDGE AND WILL LIKELY CONTINUE TO TURN
   FROM MAINLY AN EWD TO A SEWD DIRECTION.  THIS IS DUE IN PART TO A
   RESERVOIR OF RICH-MOIST AND MODERATELY UNSTABLE BOUNDARY LAYER
   /REFERENCE 00Z ILN AND PIT RAOBS/ ACROSS THE DISCUSSION AREA AND
   CLOUD BEARING LAYER FLOW VEERING TO A NWLY COMPONENT...WHICH MAY
   ENABLE THE QLCS TO MOVE ESEWD AND THEN SEWD INTO NERN OH AND NWRN
   PA.  THERE HAVE BEEN MEASURED WIND SEVERE WIND GUSTS IN THE DETROIT
   METRO /KYIP 54 KTS AND KDTW 55 KTS/ IN THE PAST HOUR WITH THE
   ACTIVITY.  PENDING THE QLCS MOVING INTO NERN OH/NWRN PA AND
   MAINTAINING VIGOR...MAY NEED TO CONSIDER A POSSIBLE WW TO ADDRESS
   POTENTIAL FOR ISOLD WIND DMGG LATER THIS EVENING ACROSS THIS AREA.
   
   ..SMITH.. 07/03/2011
   
   
   ATTN...WFO...BUF...CTP...PBZ...CLE...
   
   LAT...LON   41488248 42328085 42247964 41607889 40897896 40567980
               40538118 40998198 41488248