WSCG31 FCBB 081810 FCCC SIGMET D2 VALID 081900/082300 FCBB- FCCC BRAZZAVILLE FIR/UIR EMBD TS OBS AT 1800Z E OF LINE N0159 E01022 - S0421 E01028 E OF LINE N0800 E01843 - N0503 E02241 W OF LINE N0804 E01525 - N0320 E00858 TOP FL430 MOV W 05KT INTSF=