WSUS33 KKCI 171455 SIGW MKCW WST 171455 CONVECTIVE SIGMET 57W VALID UNTIL 1655Z NV OR FROM 30SSE PDT-20SE BKE-30ENE REO-50SSW REO-40WSW REO-30SSE PDT AREA EMBD TS MOV FROM 21020KT. TOPS TO FL370. CONVECTIVE SIGMET 58W VALID UNTIL 1655Z OR WA CSTL WTRS FROM 90WSW HQM-70SSW HQM-20NNW ONP-50WSW ONP-100WNW ONP-90WSW HQM AREA EMBD TS MOV FROM 20015KT. TOPS TO FL300. OUTLOOK VALID 171655-172055 AREA 1...FROM 50NE DLN-BIL-50S BOY-50ESE BCE-50W BCE-50SW BPI-50NE DLN WST ISSUANCES EXPD. REFER TO MOST RECENT ACUS01 KWNS FROM STORM PREDICTION CENTER FOR SYNOPSIS AND METEOROLOGICAL DETAILS. AREA 2...FROM PDT-BOI-REO-40ENE DSD-PDT WST ISSUANCES POSS. REFER TO MOST RECENT ACUS01 KWNS FROM STORM PREDICTION CENTER FOR SYNOPSIS AND METEOROLOGICAL DETAILS.