WTPS51 PGTW 070300 WARNING ATCG MIL 18P SWP 160407011627 2016040700 18P ZENA 007 01 110 27 SATL 060 T000 215S 1760W 050 R034 050 NE QD 050 SE QD 040 SW QD 040 NW QD T012 222S 1707W 040 R034 065 NE QD 065 SE QD 040 SW QD 040 NW QD T024 227S 1663W 030 AMP 012HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER 024HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER SUBJ: TROPICAL CYCLONE WARNING 1. TROPICAL CYCLONE 18P (ZENA) WARNING NR 007 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 070000Z --- NEAR 21.5S 176.0W MOVEMENT PAST SIX HOURS - 110 DEGREES AT 27 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT REPEAT POSIT: 21.5S 176.0W --- FORECASTS: 12 HRS, VALID AT: 071200Z --- 22.2S 170.7W 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 - 065 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 100 DEG/ 20 KTS --- 24 HRS, VALID AT: 080000Z --- 22.7S 166.3W MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 070300Z POSITION NEAR 21.7S 174.7W. TROPICAL CYCLONE 18P (ZENA), LOCATED APPROXIMATELY 56 NM WEST- SOUTHWEST OF TONGA, HAS TRACKED EAST-SOUTHEASTWARD AT 27 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 070000Z IS 15 FEET. NEXT WARNINGS AT 070900Z, 071500Z AND 072100Z.// 1816040400 126S1610E 20 1816040406 130S1617E 25 1816040412 134S1624E 25 1816040418 138S1633E 30 1816040500 142S1647E 30 1816040506 148S1666E 35 1816040512 156S1682E 45 1816040518 166S1703E 65 1816040518 166S1703E 65 1816040600 177S1728E 90 1816040600 177S1728E 90 1816040600 177S1728E 90 1816040606 185S1751E 75 1816040606 185S1751E 75 1816040606 185S1751E 75 1816040612 196S1781E 65 1816040612 196S1781E 65 1816040618 205S1787W 55 1816040618 205S1787W 55 1816040700 215S1760W 50