TAF WSD 172057Z 1721/1821 (1810/1910NZDT) 26015G22KT 1600 -SN DRSN BKN025 BKN050 OVC120 QNH2867INS ALL WINDS GRID BECMG 1804/1806 (1817/1819) 28018G30KT 0800 -SN BLSN BKN025 OVC050 QNH2855INS TEMPO 1808/1814 (1821/1903) 29025G35KT 0400 SN BLSN FEW000 OVC008 BLSN FEW000