AREAS AFFECTED...CNTRL IL INTO INDIANA
CONCERNING...SEVERE POTENTIAL...WATCH LIKELY
VALID 101736Z - 101900Z
PROBABILITY OF WATCH ISSUANCE...80 PERCENT
SUMMARY...STORMS SHOULD INCREASE IN COVERAGE AND INTENSITY WITH
LARGE HAIL AND DAMAGING WINDS POSSIBLE. A WATCH MAY BE REQUIRED
SOON.
DISCUSSION...STORMS HAVE ERUPTED ALONG AND N OF THE SYNOPTIC
BOUNDARY FROM CNTRL IL EWD INTO OH. HEATING AND LOW LEVEL MOISTURE
ADVECTION COUPLED WITH RELATIVELY COOL TEMPERATURE PROFILES ALOFT
HAVE LED TO MLCAPE AROUND 2000 J/KG. DEEP LAYER SHEAR IS FAVORABLE
FOR ORGANIZED CONVECTION INCLUDING BOWS OR SUPERCELLS AND IS
ORIENTED NEARLY PARALLEL TO THE FRONT. LARGE HAIL APPEARS
LIKELY...WITH DAMAGING WINDS POSSIBLE WITH STORMS WHICH MOVE EWD
ALONG THE FRONT.
..JEWELL/THOMPSON.. 04/10/2013
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...CLE...ILN...IWX...IND...LOT...ILX...LSX...
LAT...LON 40188869 41198578 41578358 41558303 41198273 40858266
40308273 39928323 39698475 39498560 38778845 38788926
38898947 39488945 40188869
