WTPH23 RPMM 161800 TTT WARNING 05 TD 1800 UTC 00 16.9N 121.7E 996HPA 30KT P06HR W 15KT P+12 16.6N 118.7E P+24 16.3N 115.9E P+36 16.2N 113.6E P+48 16.3N 111.9E P+60 16.7N 110.8E P+72 17.4N 109.7E PAGASA=