WTXS51 PGTW 040900 WARNING ATCG MIL 18S SIO 210204082619 2021020406 18S EIGHTEEN 016 01 260 06 SATL RADR SYNP 020 T000 244S 1137E 035 R034 030 NE QD 030 SE QD 060 SW QD 045 NW QD T012 245S 1131E 035 R034 000 NE QD 020 SE QD 080 SW QD 000 NW QD T024 249S 1127E 035 R034 000 NE QD 060 SE QD 080 SW QD 010 NW QD T036 261S 1127E 035 R034 020 NE QD 120 SE QD 100 SW QD 030 NW QD T048 276S 1131E 030 AMP 036HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER 048HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER SUBJ: TROPICAL CYCLONE 18S (EIGHTEEN) WARNING NR 016 1. TROPICAL CYCLONE 18S (EIGHTEEN) WARNING NR 016 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 040600Z --- NEAR 24.4S 113.7E MOVEMENT PAST SIX HOURS - 260 DEGREES AT 06 KTS POSITION ACCURATE TO WITHIN 020 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE, RADAR AND SYNOPTIC DATA PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 030 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT REPEAT POSIT: 24.4S 113.7E --- FORECASTS: 12 HRS, VALID AT: 041800Z --- 24.5S 113.1E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 000 NM NORTHEAST QUADRANT 020 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 000 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 220 DEG/ 03 KTS --- 24 HRS, VALID AT: 050600Z --- 24.9S 112.7E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 000 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 010 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 180 DEG/ 06 KTS --- 36 HRS, VALID AT: 051800Z --- 26.1S 112.7E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER RADIUS OF 034 KT WINDS - 020 NM NORTHEAST QUADRANT 120 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 165 DEG/ 08 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 060600Z --- 27.6S 113.1E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 040900Z POSITION NEAR 24.4S 113.6E. 04FEB21. TROPICAL CYCLONE (TC) 18S (EIGHTEEN), LOCATED APPROXIMATELY 128 NM SOUTH OF LEARMONTH, AUSTRALIA, HAS TRACKED WESTWARD AT 06 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 040600Z IS 18 FEET. NEXT WARNINGS AT 041500Z, 042100Z, 050300Z AND 050900Z.// 1821012818 159S1266E 15 1821012900 164S1261E 15 1821012906 168S1258E 20 1821012912 172S1256E 20 1821012918 176S1254E 20 1821013000 179S1251E 25 1821013006 183S1246E 30 1821013012 187S1240E 30 1821013018 192S1235E 30 1821013100 201S1229E 30 1821013106 210S1223E 30 1821013112 214S1211E 30 1821013118 213S1202E 30 1821020100 207S1194E 30 1821020106 206S1190E 30 1821020112 211S1181E 30 1821020118 215S1171E 30 1821020200 222S1163E 30 1821020206 229S1157E 30 1821020212 236S1151E 30 1821020218 240S1145E 30 1821020300 238S1144E 30 1821020306 239S1143E 30 1821020312 238S1144E 30 1821020318 238S1148E 30 1821020400 243S1143E 30 1821020406 244S1137E 35 NNNN