
MESOSCALE DISCUSSION 1248
NWS STORM PREDICTION CENTER NORMAN OK
0834 PM CDT FRI JUN 19 2009
AREAS AFFECTED...INDIANA/WRN OH
CONCERNING...TORNADO WATCH 483...
VALID 200134Z - 200300Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 483 CONTINUES.
SEVERE/TORNADO THREAT CONTINUES ACROSS WW 483.
LATEST RADAR LOOP SHOWS A BROKEN BAND OF STRONG TO SEVERE STORMS
MOVING ACROSS INDIANA AND SERN IL ATTM. THE STORMS CONTINUE TO
PRODUCE NUMEROUS SEVERE WEATHER REPORTS...AS THE CONVECTION MOVES
THROUGH THE MODERATELY-UNSTABLE AIRMASS ACROSS THIS REGION
/MIXED-LAYER CAPE GENERALLY 2000-2500 J/KG ATTM/.
LATEST VWP DATA AND EVENING WILMINGTON OH RAOB REVEAL A
FAVORABLY-SHEARED ENVIRONMENT...WITH FLOW INCREASING TO 60 KT FROM
THE WSW NEAR 7 KM. THUS --
EXPECT POTENTIAL FOR FAIRLY WIDESPREAD
WIND DAMAGE TO CONTINUE...ALONG WITH LARGE HAIL.
ADDITIONALLY...ISOLATED TORNADOES REMAIN POSSIBLE -- PARTICULARLY
WITH MORE ISOLATED CELLS OVER SRN IL APPROACHING SRN FRINGES OF WW
483.
..GOSS.. 06/20/2009
ATTN...WFO...ILN...DTX...LMK...IWX...GRR...IND...PAH...