WSBZ23 SBGL 180325
SBAO SIGMET 4 VALID 180330/180730 SBAO - SBAO ATLANTICO FIR SEV ICE FCST WI S3018 W03840 - S3211 W03835 - S3255 W03207 - S2725 W02111 - S2018 W02922 - S1537 W03321 - S1408 W03527 - S1618 W03702 - S1731 W03739 - S2302 W03311 - S2546 W03102 - S3018 W03840 FL140/240 STNR NC=