WTPN52 PGTW 230300 WARNING ATCG MIL 21W NWP 210923013159 2021092300 21W TWENTYONE 003 02 295 13 SATL SYNP 020 T000 135N 1112E 030 T012 146N 1092E 035 R034 080 NE QD 020 SE QD 020 SW QD 070 NW QD T024 155N 1068E 030 T036 159N 1043E 020 AMP 024HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND 036HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND SUBJ: TROPICAL DEPRESSION 21W (TWENTYONE) WARNING NR 003 1. TROPICAL DEPRESSION 21W (TWENTYONE) WARNING NR 003 02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 230000Z --- NEAR 13.5N 111.2E MOVEMENT PAST SIX HOURS - 295 DEGREES AT 13 KTS POSITION ACCURATE TO WITHIN 020 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE AND SYNOPTIC DATA PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY REPEAT POSIT: 13.5N 111.2E --- FORECASTS: 12 HRS, VALID AT: 231200Z --- 14.6N 109.2E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT 020 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 290 DEG/ 12 KTS --- 24 HRS, VALID AT: 240000Z --- 15.5N 106.8E 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 36 HR POSIT: 280 DEG/ 12 KTS --- 36 HRS, VALID AT: 241200Z --- 15.9N 104.3E MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 230300Z POSITION NEAR 13.8N 110.7E. 23SEP21. TROPICAL DEPRESSION 21W (TWENTYONE), LOCATED APPROXIMATELY 225 NM SOUTHEAST OF DA NANG, VIETNAM, HAS TRACKED WEST-NORTHWESTWARD AT 13 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 230000Z IS 11 FEET. NEXT WARNINGS AT 230900Z, 231500Z, 232100Z AND FOR SIX-HOURLY UPDATES.// 2121092100 114N1180E 15 2121092106 114N1175E 15 2121092112 114N1169E 15 2121092118 116N1163E 15 2121092200 119N1154E 15 2121092206 123N1143E 20 2121092212 128N1133E 25 2121092218 130N1124E 25 2121092300 135N1112E 30 NNNN