WSBZ23 SBGL 181207 SBCW SIGMET 31 VALID 181212/181530 SBCW - SBCW CURITIBA FIR EMBD TS FCST WI S2105 W05804 - S2204 W05801 - S2221 W05549 - S2359 W05525 - S2349 W05440 - S2356 W05434 - S2149 W05511 - S2105 W05804 TOP FL420 MOV NE 23KT NC=