International Sigmet / Convective Sigmet
Issued by NWS
Issued by NWS
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814 WSUS33 KKCI 171855 SIGW MKCW WST 171855 CONVECTIVE SIGMET 17W VALID UNTIL 2055Z MT WY FROM 20NW LWT-70SW DDY-20NW OCS-20NW HLN-20NW LWT AREA TS MOV FROM 29015KT. TOPS TO FL380. OUTLOOK VALID 172055-180055 FROM 40N GTF-40W MLS-50SW DDY-HBU-30E JNC-30E OCS-DBS-40N GTF WST ISSUANCES POSS. REFER TO MOST RECENT ACUS01 KWNS FROM STORM PREDICTION CENTER FOR SYNOPSIS AND METEOROLOGICAL DETAILS.