000 FTUS43 KGRB 181737 TAFATW TAF KATW 181737Z 1818/1918 24007KT P6SM VCSH OVC050 FM182000 24008KT P6SM -SHRA OVC025 FM190100 26006KT P6SM OVC030 FM190200 26006KT P6SM BKN045 FM190400 27011G21KT P6SM SKC FM191500 27019G30KT P6SM SCT120=