WSZA21 FAOR 170930 FAJO SIGMET I02 VALID 171000/171400 FAOR- FAJO JOHANNESBURG OCEANIC FIR EMBD TS FCST WI S2806 W00859 - S3122 E00329 - S4118 E01150 - S4329 E04147 - S4811 E04844 - S5145 E03535 - S4802 E01127 - S5036 E00405 - S4038 W00327 - S3852 W00950 TOP FL300=