000 FTUS41 KBUF 171120 TAFIAG TAF KIAG 171120Z 1712/1812 28012G20KT P6SM SCT035 FM171500 26015G25KT P6SM BKN050 FM172000 27015G25KT P6SM VCSH BKN035 FM180000 27012KT P6SM BKN050 FM180400 27012KT P6SM SCT050=