WSCG31 GCBB 161434 FCCC SIGMET A1 VALID 161445/141745 FCBB- FCCC BRAZZAVILLE FIR/UIR EMBD TS OBS AT 1430Z N OF LINE N0700 E02303 - N0700 E01902 N OF LINE N0646 E01446 - N0646 E01214 TOP FL530 MOV W 15KT INTSF=