WSUS33 KKCI 042355 SIGW MKCW WST 042355 CONVECTIVE SIGMET 10W VALID UNTIL 0155Z CO NM AZ UT NV CA FROM 30SW MLD-20SW TBE-30ESE TUS-30SE BZA-60W HEC-30SW MLD AREA TS MOV FROM 17015KT. TOPS TO FL400. CONVECTIVE SIGMET 11W VALID UNTIL 0155Z CO MT WY UT ID FROM 30S GTF-70SSE MLS-30NNW DEN-30SSW DBL-40SE BOI-30S GTF AREA TS MOV FROM 18015KT. TOPS TO FL400. OUTLOOK VALID 050155-050555 FROM MLP-LWT-SHR-40NNE TCS-30S SSO-40SW TUS-LAX-BAM-TWF-MLP WST ISSUANCES POSS. REFER TO MOST RECENT ACUS01 KWNS FROM STORM PREDICTION CENTER FOR SYNOPSIS AND METEOROLOGICAL DETAILS.