FTBA31 MYNN 181803 TAF COR MYNN 181800Z 1818/1918 17005KT 9999 SHRA BKN018 BKN200 PROB30 TEMPO 1821/1901 12005KT SHRA FEW015CB SCT018 BKN200 PROB30 TEMPO 1909/1913 SHRA FEW016CB SCT020 BKN200=