WSBZ23 SBGL 171811
SBAZ SIGMET 56 VALID 171816/171930 SBAZ - SBAZ AMAZONICA FIR EMBD TS FCST WI S0331 W04437 - S0422 W04254 - S0411 W04231 - S0230 W04158 - S0143 W04316 - S0331 W04437 TOP FL470 STNR INTSF=