WTXS52 PGTW 200300 WARNING ATCG MIL 15S SIO 180320015703 2018032000 15S MARCUS 018 02 280 15 SATL 025 T000 151S 1184E 105 R064 035 NE QD 050 SE QD 040 SW QD 030 NW QD R050 070 NE QD 090 SE QD 080 SW QD 055 NW QD R034 130 NE QD 165 SE QD 145 SW QD 110 NW QD T012 149S 1157E 120 R064 040 NE QD 055 SE QD 045 SW QD 035 NW QD R050 065 NE QD 090 SE QD 080 SW QD 055 NW QD R034 150 NE QD 170 SE QD 145 SW QD 105 NW QD T024 150S 1129E 130 R064 045 NE QD 060 SE QD 055 SW QD 040 NW QD R050 075 NE QD 100 SE QD 090 SW QD 065 NW QD R034 160 NE QD 170 SE QD 150 SW QD 115 NW QD T036 156S 1103E 140 R064 050 NE QD 065 SE QD 055 SW QD 050 NW QD R050 080 NE QD 095 SE QD 090 SW QD 070 NW QD R034 155 NE QD 170 SE QD 150 SW QD 125 NW QD T048 165S 1084E 135 R064 055 NE QD 070 SE QD 060 SW QD 055 NW QD R050 090 NE QD 100 SE QD 090 SW QD 080 NW QD R034 160 NE QD 175 SE QD 150 SW QD 135 NW QD T072 206S 1068E 120 R064 060 NE QD 070 SE QD 060 SW QD 050 NW QD R050 095 NE QD 100 SE QD 090 SW QD 070 NW QD R034 160 NE QD 160 SE QD 150 SW QD 120 NW QD T096 255S 1080E 085 R064 035 NE QD 045 SE QD 030 SW QD 025 NW QD R050 050 NE QD 060 SE QD 055 SW QD 035 NW QD R034 115 NE QD 185 SE QD 170 SW QD 115 NW QD T120 286S 1110E 045 R034 150 NE QD 190 SE QD 115 SW QD 085 NW QD AMP 096HR BECOMING EXTRATROPICAL 120HR BECOMING EXTRATROPICAL SUBJ: TROPICAL CYCLONE 15S (MARCUS) WARNING NR 018 1. TROPICAL CYCLONE 15S (MARCUS) WARNING NR 018 02 ACTIVE TROPICAL CYCLONES IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 200000Z --- NEAR 15.1S 118.4E MOVEMENT PAST SIX HOURS - 280 DEGREES AT 15 KTS POSITION ACCURATE TO WITHIN 025 NM POSITION BASED ON EYE FIXED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT 165 NM SOUTHEAST QUADRANT 145 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT REPEAT POSIT: 15.1S 118.4E --- FORECASTS: 12 HRS, VALID AT: 201200Z --- 14.9S 115.7E MAX SUSTAINED WINDS - 120 KT, GUSTS 145 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 170 NM SOUTHEAST QUADRANT 145 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 270 DEG/ 14 KTS --- 24 HRS, VALID AT: 210000Z --- 15.0S 112.9E MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 170 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 255 DEG/ 13 KTS --- 36 HRS, VALID AT: 211200Z --- 15.6S 110.3E MAX SUSTAINED WINDS - 140 KT, GUSTS 170 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 170 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 245 DEG/ 10 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 220000Z --- 16.5S 108.4E MAX SUSTAINED WINDS - 135 KT, GUSTS 165 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 055 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 090 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 175 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 200 DEG/ 11 KTS --- 72 HRS, VALID AT: 230000Z --- 20.6S 106.8E MAX SUSTAINED WINDS - 120 KT, GUSTS 145 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 060 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 095 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 160 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 170 DEG/ 13 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 240000Z --- 25.5S 108.0E MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 115 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 170 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 140 DEG/ 10 KTS --- 120 HRS, VALID AT: 250000Z --- 28.6S 111.0E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 190 NM SOUTHEAST QUADRANT 115 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT --- REMARKS: 200300Z POSITION NEAR 15.0S 117.7E. TROPICAL CYCLONE 15S (MARCUS), LOCATED APPROXIMATELY 276 NM NORTHWEST OF BROOME, AUSTRALIA, HAS TRACKED WESTWARD AT 15 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 200000Z IS 41 FEET. NEXT WARNINGS AT 200900Z, 201500Z, 202100Z AND 210300Z. 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