WTPH23 RPMM 031800 TTT STORM WARNING 12 STS YAGI (2411) TIME 1800 UTC 00 18.8N 118.3E 980HPA 55KT P06HR WNW Slowly P+12 19.0N 117.2E P+24 18.8N 116.1E P+36 18.9N 115.0E P+48 19.3N 113.5E P+60 19.8N 111.7E P+72 20.4N 109.6E PAGASA=