FTSA31 KWBC 041733 CCA TAF COR TAF COR SPSO 041731Z 0418/0518 25012KT 8000 NSC TX24/0419Z TN16/0511Z TEMPO 0418/0421 4000 DU BECMG 0503/0506 10005KT TEMPO 0511/0513 3000 BR BKN011=