WSBZ23 SBGL 261548 SBBS SIGMET 18 VALID 261553/261930 SBBS - SBBS BRASILIA FIR EMBD TS FCST WI S1459 W04921 - S1331 W04921 - S1331 W04751 - S1459 W04751 - S1459 W04921 TOP FL430 STNR NC=