TAF AMD SDM 171629Z 1716/1815 (1805/1904NZDT) 08006KT 9999 SCT010 BKN030 QNH2831INS ALL WINDS GRID BECMG 1717/1719 (1806/1808) 17010KT 6000 -SN BR FEW010 SCT030 BKN050 QNH2835INS TEMPO 1718/1724 (1807/1813) 17015G20KT 0100 SN FZFG BLSN BKN005 620057 BECMG 1802/1804 (1815/1817) 26009KT 9999 NSW SCT010 BKN030 QNH2858INS WND VRB05KT AFT 1811