WTPN31 PGTW 281500 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL DEPRESSION 20W (TWENTY) WARNING NR 002// RMKS/ 1. TROPICAL DEPRESSION 20W (TWENTY) WARNING NR 002 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 281200Z --- NEAR 15.3N 115.0E MOVEMENT PAST SIX HOURS - 295 DEGREES AT 07 KTS POSITION ACCURATE TO WITHIN 045 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY REPEAT POSIT: 15.3N 115.0E --- FORECASTS: 12 HRS, VALID AT: 290000Z --- 16.1N 113.3E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 295 DEG/ 10 KTS --- 24 HRS, VALID AT: 291200Z --- 16.9N 111.3E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 280 DEG/ 12 KTS --- 36 HRS, VALID AT: 300000Z --- 17.4N 108.8E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 280 DEG/ 12 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 301200Z --- 17.7N 106.3E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 72 HR POSIT: 270 DEG/ 12 KTS --- 72 HRS, VALID AT: 311200Z --- 17.5N 101.3E MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 281500Z POSITION NEAR 15.5N 114.6E. 28AUG25. TROPICAL DEPRESSION 20W (TWENTY), LOCATED APPROXIMATELY 389 NM EAST OF DA NANG, VIETNAM, HAS TRACKED WEST-NORTHWESTWARD AT 07 KNOTS OVER THE PAST SIX HOURS. MINIMUM CENTRAL PRESSURE AT 281200Z IS 1001 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 281200Z IS 10 FEET. NEXT WARNINGS AT 282100Z, 290300Z, 290900Z AND 291500Z.// NNNN