FTUS46 KSEW 150520 TAFBFI TAF KBFI 150520Z 1506/1606 19008KT 5SM -RA BR SCT015 BKN020 OVC030 FM150900 14006KT P6SM OVC050 FM151500 17005KT P6SM VCSH SCT025 BKN035 FM151900 20010KT P6SM -SHRA SCT035 BKN050 FM152100 25008KT 6SM -RA SCT025 BKN040 FM160100 02005KT 6SM -RA SCT025 BKN040=