WTPN32 PGTW 121500 MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TYPHOON 08W (CHANTHU) WARNING NR 015 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 121200Z6 --- NEAR 14.0N5 108.8E7 MOVEMENT PAST SIX HOURS - 270 DEGREES AT 14 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT RADIUS OF 064 KT WINDS - 015 NM NORTHEAST QUADRANT 015 NM SOUTHEAST QUADRANT 010 NM SOUTHWEST QUADRANT 010 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT OVER WATER 065 NM SOUTHEAST QUADRANT OVER WATER 060 NM SOUTHWEST QUADRANT OVER WATER 060 NM NORTHWEST QUADRANT OVER WATER REPEAT POSIT: 14.0N5 108.8E7 --- FORECASTS: 12 HRS, VALID AT: 130000Z4 --- 14.6N1 107.1E9 MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 24 HR POSIT: 300 DEG/ 07 KTS --- 24 HRS, VALID AT: 131200Z7 --- 15.3N9 105.8E4 MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 36 HR POSIT: 315 DEG/ 06 KTS --- 36 HRS, VALID AT: 140000Z5 --- 16.2N9 104.9E4 MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 121500Z9 POSITION NEAR 14.2N7 108.4E3. TYPHOON (TY) 08W (CHANTHU) MADE LANDFALL NEAR QUI NHON, VIETNAM. THE SYSTEM HAS TRACKED WESTWARD AT 14 KNOTS OVER THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON 121130Z8 ENHANCED INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 55 AND 77 KNOTS. ANIMATED ENHANCED INFRARED AND RECENT MICROWAVE SATELLITE IMAGERY REVEALS THE SYSTEM CONTINUES TO RECEIVE SOME DRY AIR INTRUSION AND IS BEGINNING TO WEAKEN DUE TO INTERACTION WITH LAND. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 121200Z6 IS 14 FEET. REFER TO WWPW31 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT 122100Z6, 130300Z7, 130900Z3 AND 131500Z0.//