000 FTUS43 KDMX 170520 TAFALO TAF KALO 170520Z 1706/1806 18011KT P6SM VCSH BKN070 FM171000 22013G21KT P6SM OVC020 FM171500 28019G30KT P6SM BKN015 FM171900 29023G35KT P6SM OVC020 FM172300 30016G27KT P6SM BKN090=