000 FTUS43 KGRB 181737 TAFAUW TAF KAUW 181737Z 1818/1918 25009G16KT P6SM -SHRA OVC025 FM182300 26009G16KT P6SM OVC040 FM190000 27008G18KT P6SM SCT250 FM191400 27018G29KT P6SM SCT150=