WSUS33 KKCI 202055 SIGW MKCW WST 202055 CONVECTIVE SIGMET 7W VALID UNTIL 2255Z MT FROM 50NNW GGW-40SW GGW-50NW HLN-50NE FCA-50NNW GGW AREA EMBD TS MOV FROM 27015KT. TOPS TO FL280. OUTLOOK VALID 202255-210255 TS ARE NOT EXPD TO REQUIRE WST ISSUANCES.