MESOSCALE DISCUSSION 0160
   NWS STORM PREDICTION CENTER NORMAN OK
   1041 PM CST SUN FEB 27 2011
   
   AREAS AFFECTED...ECNTRL/SERN MO...SRN IL
   
   CONCERNING...TORNADO WATCH 25...
   
   VALID 280441Z - 280615Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 25 CONTINUES.
   
   BOW ECHO WITH CORRIDORS OF VERY HIGH WIND POTENTIAL AND POSSIBLE BOW
   HEAD/LEADING EDGE TORNADOES WILL IMPACT THE ST. LOUIS METRO AREA
   05-06Z.  
   
   ORGANIZED BOW WAS MOVING 250/57KTS OVER ECNTRL MO ALONG/S OF A FRONT
   SITUATED THROUGH NRN ST. LOUIS METRO INTO CNTRL IL.  MOIST INFLOW
   WITH CAPE TO 1000 J/KG WILL LIKELY MAINTAIN THE BOW INTO WCNTRL/SWRN
   IL THROUGH 06Z.  LSX VWP SHOWS A DEEP UNIDIRECTIONAL PROFILE WITH
   50-60 KTS ABOVE 1KM AND GIVEN PCPN LOADING...CELL WILL POSE A
   SIGNIFICANT RISK FOR DAMAGING WINDS AND POSSIBLE BOW HEAD AND/OR
   LEADING EDGE TORNADOES.  
   
   OTHERWISE...LONG-LIVED CELLS...INCLUDING SUPERCELLS...OVER THE
   OZARKS...MAY GO THROUGH THE SAME MATURATION PROCESS AND TRACK INTO
   AREAS OF ECNTRL/SERN MO AND SRN IL OVER THE NEXT FEW HOURS.
   
   ..RACY.. 02/28/2011
   
   
   ATTN...WFO...PAH...LSX...
   
   LAT...LON   38709155 38959129 39169001 39198933 38918890 38148855
               37548885 37248957 37299061 37539099 38709155