MESOSCALE DISCUSSION 0379
   NWS STORM PREDICTION CENTER NORMAN OK
   0511 PM CST FRI APR 04 2003
   
   AREAS AFFECTED...ERN IL AND WRN/CENTRAL IND
   
   CONCERNING...TORNADO WATCH 86...
   
   VALID 042311Z - 050115Z
   
   TORNADO WATCH 86 CONTINUES IN EFFECT ACROSS ERN IL AND
   WRN/CENTRAL IND THROUGH 05/02Z. THREAT OF TORNADOES LIKELY
   HIGHEST WITH CONVECTION NEAR WARM FRONT EXTENDING FROM 15 N DEC
   TO 10 N LAF DURING THE NEXT 1-2 HOURS.
   
   NUMEROUS SEVERE THUNDERSTORMS CONTINUE IN VICINITY OF 998MB
   SURFACE CYCLONE OVER E-CENTRAL IL WHERE STRONG SYNOPTIC-SCALE
   FORCING/CONVERGENCE WILL CONTINUE TO SUPPORT UVV THROUGH THIS
   EVENING. STORMS ARE GENERALLY MOVING 250/30-35 KT. THERMODYNAMIC
   ENVIRONMENT CONTINUES FAVORABLE FOR THUNDERSTORMS OVER THE WATCH
   AREA WITH MUCAPE VALUES OF 1000-2000 J/KG ACROSS FAR ERN IL AND
   WRN/CENTRAL IND...WHICH IS GENERALLY WITHIN THE MOIST AXIS WITH
   SFC DEWPOINTS OF 58-62F. STRONG DEEP LAYER SHEAR WILL CONTINUE TO
   SUPPORT SUPERCELL STORMS...WITH ENHANCED LOW-LEVEL
   SRH/DIRECTIONAL SHEAR ALONG E-W WARM FRONT A LIKELY FOCUS FOR
   TORNADIC SUPERCELLS THROUGH 02Z. LARGE HAIL AND DAMAGING WINDS
   ARE ALSO POSSIBLE...WITH WIND THREAT ENHANCED WITH SMALL-SCALE
   BOW FEATURES ALONG EWD ADVANCING COLD FRONT.
   
   ..BANACOS.. 04/04/2003
   
   
   ATTN...WFO...LMK...IWX...IND...PAH...LOT...ILX...LSX...
   
   38598953 38978952 39728951 40878946 41048883 41008771
   40908603 40338581 39508582 38558584 38538717 38588869