WTXS52 PGTW 100900 RRA WARNING ATCG MIL 15S SIO 170410080327 2017041006 15S ERNIE 009 01 245 12 SATL 020 T000 187S 1030E 040 R034 060 NE QD 065 SE QD 060 SW QD 050 NW QD T012 195S 1009E 030 AMP 000HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER 012HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER SUBJ: TROPICAL CYCLONE 15S (ERNIE) WARNING NR 009 1. TROPICAL CYCLONE 15S (ERNIE) WARNING NR 009 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 100600Z --- NEAR 18.7S 103.0E MOVEMENT PAST SIX HOURS - 245 DEGREES AT 12 KTS POSITION ACCURATE TO WITHIN 020 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT REPEAT POSIT: 18.7S 103.0E --- FORECASTS: 12 HRS, VALID AT: 101800Z --- 19.5S 100.9E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 100900Z POSITION NEAR 18.9S 102.5E. TROPICAL CYCLONE 15S (ERNIE), LOCATED APPROXIMATELY 660 NM WEST- NORTHWEST OF LEARMONTH, AUSTRALIA, HAS TRACKED WEST-SOUTHWESTWARD AT 12 KNOTS OVER THE PAST SIX HOURS.=