WTPN31 PGTW 272100 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TYPHOON 20W (MEGI) WARNING NR 020 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 271800Z --- NEAR 25.0N 118.9E MOVEMENT PAST SIX HOURS - 290 DEGREES AT 12 KTS POSITION ACCURATE TO WITHIN 020 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE AND RADAR PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY REPEAT POSIT: 25.0N 118.9E --- FORECASTS: 12 HRS, VALID AT: 280600Z --- 25.2N 116.8E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 24 HR POSIT: 275 DEG/ 06 KTS --- 24 HRS, VALID AT: 281800Z --- 25.3N 115.5E MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 272100Z POSITION NEAR 25.1N 118.4E. TYPHOON (TY) 20W (MEGI), LOCATED APPROXIMATELY 141 NM WEST OF TAIPEI, TAIWAN, HAS TRACKED WEST-NORTHWESTWARD AT 12 KNOTS OVER THE PAST SIX HOURS. A COMPOSITE RADAR REFLECTIVITY LOOP FROM THE TAIWAN CENTRAL WEATHER BUREAU INDICATES TY 20W HAS MADE LANDFALL OVER EASTERN CHINA NEAR QUANZHOU. THE SYSTEM IS EXPECTED TO RAPIDLY DECAY AS IT DRAGS WESTWARD ACROSS RUGGED TERRAIN THEN DISSIPATE BY TAU 24. THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WRNCEN PEARL HARBOR HI. THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION.//