FTSA31 KWBC 041057 TAF TAF SKCL 041055Z 0412/0512 VRB02KT 9999 SCT050 BECMG 0419/0421 32010KT PROB40 0420/0424 SHRA SCT030TCU PROB30 0506/0510 5000 BCFG BKN015 TX30/0419Z TN20/0511Z=