FTBZ18 SBGR 211800 TAF SBSP 211630Z 2118/2206 16012KT 9000 OVC012 TX21/2118Z TN19/2205Z BECMG 2118/2120 OVC007 PROB30 2120/2122 RA BECMG 2122/2124 14009KT SCT005 OVC009 RMK PGE=