WTXS51 PGTW 110900 WARNING ATCG MIL 21S SIO 200311081536 2020031106 21S TWENTYONE 001 01 185 09 SATL 015 T000 164S 1169E 035 R034 000 NE QD 050 SE QD 025 SW QD 000 NW QD T012 182S 1159E 035 R034 050 NE QD 060 SE QD 020 SW QD 000 NW QD T024 199S 1150E 035 R034 050 NE QD 030 SE QD 010 SW QD 000 NW QD T036 217S 1143E 035 R034 000 NE QD 030 SE QD 010 SW QD 000 NW QD T048 235S 1137E 030 AMP 036HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER 048HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER SUBJ: TROPICAL CYCLONE 21S (TWENTYONE) WARNING NR 001 1. TROPICAL CYCLONE 21S (TWENTYONE) WARNING NR 001 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 110600Z --- NEAR 16.4S 116.9E MOVEMENT PAST SIX HOURS - 185 DEGREES AT 09 KTS POSITION ACCURATE TO WITHIN 015 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 000 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 000 NM NORTHWEST QUADRANT REPEAT POSIT: 16.4S 116.9E --- FORECASTS: 12 HRS, VALID AT: 111800Z --- 18.2S 115.9E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 000 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 205 DEG/ 10 KTS --- 24 HRS, VALID AT: 120600Z --- 19.9S 115.0E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 010 NM SOUTHWEST QUADRANT 000 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 200 DEG/ 10 KTS --- 36 HRS, VALID AT: 121800Z --- 21.7S 114.3E 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 - 000 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 010 NM SOUTHWEST QUADRANT 000 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 195 DEG/ 09 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 130600Z --- 23.5S 113.7E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 110900Z POSITION NEAR 16.9S 116.6E. 11MAR20. TROPICAL CYCLONE (TC) 21S (TWENTYONE), LOCATED APPROXIMATELY 253 NM NORTH-NORTHWEST OF PORT HEDLAND, AUSTRALIA, HAS TRACKED SOUTHWARD AT 09 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 110600Z IS 12 FEET. NEXT WARNINGS AT 111500Z, 112100Z, 120300Z AND 120900Z.// 2120030818 105S1131E 15 2120030900 106S1132E 15 2120030906 108S1134E 15 2120030912 112S1138E 20 2120030918 117S1147E 20 2120031000 123S1155E 20 2120031006 130S1162E 20 2120031012 139S1168E 30 2120031018 147S1170E 30 2120031100 155S1170E 30 2120031106 164S1169E 35 NNNN