WTXS52 PGTW 202100 WARNING ATCG MIL 15S SIO 180320194510 2018032018 15S MARCUS 021 02 265 14 SATL 020 T000 146S 1138E 115 R064 030 NE QD 045 SE QD 045 SW QD 035 NW QD R050 050 NE QD 070 SE QD 070 SW QD 065 NW QD R034 105 NE QD 140 SE QD 155 SW QD 125 NW QD T012 148S 1111E 125 R064 045 NE QD 050 SE QD 050 SW QD 040 NW QD R050 070 NE QD 105 SE QD 085 SW QD 070 NW QD R034 155 NE QD 180 SE QD 160 SW QD 125 NW QD T024 156S 1088E 130 R064 050 NE QD 060 SE QD 060 SW QD 050 NW QD R050 085 NE QD 105 SE QD 090 SW QD 075 NW QD R034 165 NE QD 180 SE QD 160 SW QD 135 NW QD T036 169S 1072E 125 R064 060 NE QD 065 SE QD 070 SW QD 055 NW QD R050 090 NE QD 105 SE QD 090 SW QD 080 NW QD R034 165 NE QD 170 SE QD 160 SW QD 140 NW QD T048 189S 1063E 115 R064 065 NE QD 070 SE QD 065 SW QD 055 NW QD R050 090 NE QD 105 SE QD 090 SW QD 075 NW QD R034 165 NE QD 170 SE QD 160 SW QD 135 NW QD T072 232S 1061E 085 R064 040 NE QD 045 SE QD 040 SW QD 025 NW QD R050 070 NE QD 080 SE QD 080 SW QD 055 NW QD R034 135 NE QD 170 SE QD 180 SW QD 125 NW QD T096 262S 1068E 050 R050 045 NE QD 050 SE QD 060 SW QD 020 NW QD R034 080 NE QD 125 SE QD 120 SW QD 075 NW QD T120 280S 1083E 025 AMP 096HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER 120HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER SUBJ: TROPICAL CYCLONE 15S (MARCUS) WARNING NR 021 1. TROPICAL CYCLONE 15S (MARCUS) WARNING NR 021 02 ACTIVE TROPICAL CYCLONES IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 201800Z --- NEAR 14.6S 113.8E MOVEMENT PAST SIX HOURS - 265 DEGREES AT 14 KTS POSITION ACCURATE TO WITHIN 020 NM POSITION BASED ON EYE FIXED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 105 NM NORTHEAST QUADRANT 140 NM SOUTHEAST QUADRANT 155 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT REPEAT POSIT: 14.6S 113.8E --- FORECASTS: 12 HRS, VALID AT: 210600Z --- 14.8S 111.1E MAX SUSTAINED WINDS - 125 KT, GUSTS 150 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 160 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 250 DEG/ 12 KTS --- 24 HRS, VALID AT: 211800Z --- 15.6S 108.8E MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 085 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 165 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 160 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 230 DEG/ 10 KTS --- 36 HRS, VALID AT: 220600Z --- 16.9S 107.2E MAX SUSTAINED WINDS - 125 KT, GUSTS 150 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 060 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 090 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 165 NM NORTHEAST QUADRANT 170 NM SOUTHEAST QUADRANT 160 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 205 DEG/ 11 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 221800Z --- 18.9S 106.3E MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 065 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 090 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 165 NM NORTHEAST QUADRANT 170 NM SOUTHEAST QUADRANT 160 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 180 DEG/ 11 KTS --- 72 HRS, VALID AT: 231800Z --- 23.2S 106.1E MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT 170 NM SOUTHEAST QUADRANT 180 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 170 DEG/ 08 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 241800Z --- 26.2S 106.8E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT 125 NM SOUTHEAST QUADRANT 120 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 145 DEG/ 06 KTS --- 120 HRS, VALID AT: 251800Z --- 28.0S 108.3E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 202100Z POSITION NEAR 14.6S 113.1E. TROPICAL CYCLONE 15S (MARCUS), LOCATED APPROXIMATELY 439 NM NORTHWEST OF PORT HEDLAND, AUSTRA, HAS TRACKED WESTWARD AT 14 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 201800Z IS 47 FEET. NEXT WARNINGS AT 210300Z, 210900Z, 211500Z AND 212100Z. FOR TWELVE-HOURLY UPDATES. // 1518031318 85S1287E 20 1518031400 88S1289E 20 1518031406 90S1292E 20 1518031412 90S1296E 20 1518031418 90S1300E 20 1518031500 90S1304E 25 1518031506 93S1313E 30 1518031512 96S1319E 30 1518031518 101S1323E 35 1518031600 105S1324E 40 1518031606 108S1322E 40 1518031612 112S1319E 40 1518031618 117S1316E 40 1518031700 124S1311E 45 1518031706 130S1300E 45 1518031712 135S1293E 45 1518031718 139S1286E 50 1518031718 139S1286E 50 1518031800 142S1278E 55 1518031800 142S1278E 55 1518031806 146S1266E 50 1518031806 146S1266E 50 1518031812 150S1253E 45 1518031818 150S1243E 50 1518031818 150S1243E 50 1518031900 152S1234E 65 1518031900 152S1234E 65 1518031900 152S1234E 65 1518031906 155S1226E 80 1518031906 155S1226E 80 1518031906 155S1226E 80 1518031912 156S1212E 95 1518031912 156S1212E 95 1518031912 156S1212E 95 1518031918 153S1199E 100 1518031918 153S1199E 100 1518031918 153S1199E 100 1518032000 151S1184E 105 1518032000 151S1184E 105 1518032000 151S1184E 105 1518032006 148S1167E 105 1518032006 148S1167E 105 1518032006 148S1167E 105 1518032012 145S1152E 110 1518032012 145S1152E 110 1518032012 145S1152E 110 1518032018 146S1138E 115 1518032018 146S1138E 115 1518032018 146S1138E 115