491 WSUS40 KMKC 021648 WSTE MKCE WST 021655 CONVECTIVE SIGMET...NONE OUTLOOK VALID 021855-022255 FROM SYR-RDU-SPA-GQO-ERI-SYR MARGNAL UNSTBL AMS IN PLACE MAINLY DUE TO DYTM HTG AND OCNL UPR LVL SHTWVS MOVG ACRS AREA. OCNL WST ISSUANCES EXPCD. JSJ  626 WSUS40 KMKC 021648 WSTE MKCE WST 021655 CONVECTIVE SIGMET...NONE OUTLOOK VALID 021855-022255 FROM SYR-RDU-SPA-GQO-ERI-SYR MARGNAL UNSTBL AMS IN PLACE MAINLY DUE TO DYTM HTG AND OCNL UPR LVL SHTWVS MOVG ACRS AREA. OCNL WST ISSUANCES EXPCD. JSJ