MESOSCALE DISCUSSION 1145
   NWS STORM PREDICTION CENTER NORMAN OK
   1145 PM CDT WED JUN 08 2011
   
   AREAS AFFECTED...ERN IA...NRN IL...SRN LOWER MI
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 448...
   
   VALID 090445Z - 090615Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 448
   CONTINUES.
   
   A SEVERE THREAT WILL LIKELY AFFECT AREAS ACROSS NRN IL...NRN IND AND
   SERN LOWER MI OVER THE NEXT FEW HOURS. WIND DAMAGE AND HAIL WILL BE
   THE MAIN THREATS. WW ISSUANCE REMAINS POSSIBLE TO THE SOUTHEAST OF
   WW 441 AND 448.
   
   A LINEAR MCS EXTENDING FROM ERN LOWER MI SWWD TO NEAR CHICAGO WILL
   CONTINUE TO MOVE ESEWD TOWARD A MODERATELY UNSTABLE AIRMASS IN PLACE
   ACROSS NCNTRL IND AND SE LOWER MI. ALTHOUGH DEEP LAYER SHEAR IS
   WEAKER ACROSS NRN IND AND SRN LOWER MI...THE MODERATE INSTABILITY
   MAY ALLOW THE MCS TO REMAIN SOMEWHAT ORGANIZED OVER THE NEXT FEW
   HOURS. RADAR LOOPS SUGGEST THE OUTFLOW HAS SURGED WELL TO THE
   SOUTHEAST OF THE SRN PART OF THE MCS. THIS ADDS UNCERTAINTY AS TO
   HOW MUCH SEVERE THREAT COVERAGE WILL BE TO THE SOUTHEAST OF THE
   CURRENT SEVERE THUNDERSTORM WATCHES.
   
   ..BROYLES.. 06/09/2011
   
   
   ATTN...WFO...DTX...IWX...GRR...LOT...ILX...DVN...
   
   LAT...LON   42878288 42088377 41578498 41098596 40828713 40968885
               41108978 41738941 42568635 43418496 43618346 43448299
               42878288