WSUS31 KKCI 041255 SIGE MKCE WST 041255 CONVECTIVE SIGMET 23E VALID UNTIL 1455Z FL AND CSTL WTRS FROM 30NNW PBI-70E PBI-60ESE MIA-30NW MIA-30NNW PBI AREA EMBD TS MOV LTL. TOPS ABV FL450. CONVECTIVE SIGMET 24E VALID UNTIL 1455Z FL CSTL WTRS FROM 100SSW TLH-60WNW PIE-60W PIE-150W PIE-100SSW TLH AREA EMBD TS MOV FROM 10005KT. TOPS TO FL400. OUTLOOK VALID 041455-041855 FROM AMG-70ENE PBI-150SE MIA-70WSW EYW-CEW-AMG WST ISSUANCES POSS. REFER TO MOST RECENT ACUS01 KWNS FROM STORM PREDICTION CENTER FOR SYNOPSIS AND METEOROLOGICAL DETAILS.