MESOSCALE DISCUSSION 1060

   MESOSCALE DISCUSSION 1060     NWS STORM PREDICTION CENTER NORMAN OK     0803 PM CDT MON JUN 04 2012          AREAS AFFECTED...FAR SERN AR...W-CNTRL INTO CNTRL MS...FAR NERN LA          CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE           VALID 050103Z - 050230Z          PROBABILITY OF WATCH ISSUANCE...40 PERCENT          SUMMARY...AT LEAST A BRIEF PERIOD OF STRONG/LOCALLY DAMAGING WINDS     AND MARGINALLY SEVERE HAIL WILL BE POSSIBLE AS STORMS TRACK INTO     W-CNTRL MS AND POSSIBLE FAR NERN LA. IT IS UNCERTAIN HOW FAR E     CONVECTION MAY BE MAINTAINED AND CONVECTIVE TRENDS WILL BE MONITORED     CLOSELY FOR POSSIBLE SVR WW ISSUANCE.          DISCUSSION...THUNDERSTORMS ASSOCIATED WITH MCV NOW ALONG THE MS     RIVER FROM SERN AR CROSSING INTO W-CNTRL MS HAVE RE-INTENSIFIED OVER     THE LAST HOUR OR SO. THIS IS LIKELY DUE TO SLIGHTLY INCREASING DEEP     LAYER SHEAR ACROSS THE REGION AND POTENTIAL INTERACTION WITH A     RESIDUAL OUTFLOW BOUNDARY NEAR THE AR/LA BORDER INTO CNTRL MS. THE     DOWNSTREAM AIRMASS REMAINS MODERATELY UNSTABLE AND VERY MOIST BUT     GIVEN THE MODEST DEEP LAYER FLOW AND COOLING BOUNDARY LAYER WITH     TIME...IT IS UNCERTAIN HOW LONG CONVECTION MAY PERSIST. AT LEAST A     BRIEF PERIOD OF STRONG/LOCALLY DAMAGING WINDS AND MARGINALLY SEVERE     HAIL WILL BE POSSIBLE INTO W-CNTRL MS GIVEN STEEP LAPSE RATES PER     00Z RAOB FROM JAN. CONVECTIVE TRENDS WILL BE MONITORED CLOSELY FOR     POSSIBLE SVR WW ISSUANCE.          ..LEITMAN/CORFIDI.. 06/05/2012               ATTN...WFO...MEG...JAN...LZK...SHV...