WTPQ51 RJTD 121800 RSMC TROPICAL CYCLONE ADVISORY NAME TS 2406 SON-TINH (2406) ANALYSIS PSTN 121800UTC 34.2N 149.4E FAIR MOVE NNW 16KT PRES 1000HPA MXWD 035KT GUST 050KT 30KT 120NM EAST 60NM WEST FORECAST 12HF 130600UTC 36.3N 147.1E 30NM 70% MOVE NW 14KT PRES 1000HPA MXWD 035KT GUST 050KT 24HF 131800UTC 38.9N 145.6E 42NM 70% TROPICAL DEPRESSION =