ZCZC SPCSWOMCD ALL ACUS11 KWNS 011959 SPC MCD 011959 WVZ000-OHZ000-VAZ000-KYZ000-012100- MESOSCALE DISCUSSION 0522 NWS STORM PREDICTION CENTER NORMAN OK 0259 PM CDT SUN MAY 01 2016 AREAS AFFECTED...ERN KY...SW/W WV...FAR SW VA CONCERNING...SEVERE POTENTIAL...WATCH LIKELY VALID 011959Z - 012100Z PROBABILITY OF WATCH ISSUANCE...80 PERCENT SUMMARY...TSTM COVERAGE IS EXPECTED TO INCREASE THIS AFTERNOON ACROSS THE REGION WILL SOME SVR HAIL AND/OR DAMAGING WIND GUSTS POSSIBLE. A WW WILL LIKELY BE NEEDED TO COVER THE POTENTIAL SVR THREAT. DISCUSSION...ENVIRONMENT ACROSS THE REGION CONTINUES TO HEAT UP UNDER MOSTLY CLEAR SKIES WITH INITIAL CINH NOW COMPLETELY ERODED. LOW-LEVEL MOISTURE IS A BIT LOWER HERE THAN AREAS FARTHER W...CONTRIBUTING TO SLIGHTLY LESS INSTABILITY /LATEST MESOANALYSIS ESTIMATES MLCAPE AROUND 1000 J PER KG/. EVEN WITH LESS INSTABILITY...BULK SHEAR SAMPLED BY REGIONAL VADS AND ESTIMATED BY MESOANALYSIS SUGGESTS AN ISOLATED/POSSIBLY SCATTERED SEVERE THREAT MAY MATERIALIZE AS TSTM COVERAGE INCREASES THIS AFTERNOON UNDER PERSISTENT HEATING AND SUBTLE FORCING FOR ASCENT. WW WILL LIKELY BE NEEDED SOON TO ADDRESS THIS SVR THREAT. ..MOSIER/DIAL.. 05/01/2016 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...RNK...RLX...MRX...JKL...ILN... LAT...LON 37288115 36978373 37678373 38628274 39028227 39168199 39388102 39148052 38518036 37288115 NNNN