WTPS31 PGTW 280900 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE 18P (EIGHTEEN) WARNING NR 001// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/280221ZJAN2026// AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT. RMKS/ 1. TROPICAL CYCLONE 18P (EIGHTEEN) WARNING NR 001 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 280600Z --- NEAR 16.9S 172.2E MOVEMENT PAST SIX HOURS - 145 DEGREES AT 13 KTS POSITION ACCURATE TO WITHIN 060 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 - 060 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 005 NM SOUTHWEST QUADRANT 005 NM NORTHWEST QUADRANT REPEAT POSIT: 16.9S 172.2E --- FORECASTS: 12 HRS, VALID AT: 281800Z --- 20.6S 173.0E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 020 NM NORTHEAST QUADRANT 020 NM SOUTHEAST QUADRANT 005 NM SOUTHWEST QUADRANT 005 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT 120 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 190 DEG/ 17 KTS --- 24 HRS, VALID AT: 290600Z --- 24.0S 172.2E 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 130 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 220 DEG/ 12 KTS --- 36 HRS, VALID AT: 291800Z --- 25.9S 170.5E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 280900Z POSITION NEAR 17.8S 172.4E. 28JAN26. TROPICAL CYCLONE 18P (EIGHTEEN), LOCATED APPROXIMATELY 229 NM EAST-NORTHEAST OF PORT VILA, VANUATU, HAS TRACKED SOUTHEASTWARD AT 13 KNOTS OVER THE PAST SIX HOURS. MINIMUM CENTRAL PRESSURE AT 280600Z IS 998 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 280600Z IS 17 FEET. NEXT WARNINGS AT 281500Z, 282100Z, 290300Z AND 290900Z. 2. THIS CANCELS AND SUPERSEDES REF A (WTPS21 PGTW 280230).// NNNN