TAF WSD 180258Z 1803/1903 (1816/1916NZDT) 26015G22KT 1600 -SN DRSN BKN025 BKN050 OVC120 QNH2867INS ALL WINDS GRID BECMG 1804/1806 (1817/1819) 28020G30KT 0800 SN BLSN BKN025 OVC050 QNH2855INS BECMG 1812/1814 (1901/1903) 29025G35KT 0400 SN BLSN SCT000 OVC008 QNH2857INS BLSN SCT000 BECMG 1821/1823 (1910/1912) 25015G25KT 1200 -SN BLSN BKN030 QNH2856INS