WTPN32 PGTW 250300 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL STORM 18W (NARRA) WARNING NR 018// RMKS/ 1. TROPICAL STORM 18W (NARRA) WARNING NR 018 03 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 250000Z --- NEAR 19.3N 107.5E MOVEMENT PAST SIX HOURS - 205 DEGREES AT 02 KTS POSITION ACCURATE TO WITHIN 030 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE AND RADAR PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 000 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 000 NM NORTHWEST QUADRANT REPEAT POSIT: 19.3N 107.5E --- FORECASTS: 12 HRS, VALID AT: 251200Z --- 19.6N 108.5E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 24 HR POSIT: 045 DEG/ 08 KTS --- 24 HRS, VALID AT: 260000Z --- 20.7N 109.6E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 36 HR POSIT: 035 DEG/ 06 KTS --- 36 HRS, VALID AT: 261200Z --- 21.7N 110.3E MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 250300Z POSITION NEAR 19.4N 107.8E. 25AUG26. TROPICAL STORM 18W (NARRA), LOCATED APPROXIMATELY 136 NM SOUTHEAST OF HANOI, VIETNAM, HAS TRACKED SOUTH-SOUTHWESTWARD AT 02 KNOTS OVER THE PAST SIX HOURS. MINIMUM CENTRAL PRESSURE AT 250000Z IS 993 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 250000Z IS 11 FEET. NEXT WARNINGS AT 250900Z, 251500Z, 252100Z AND 260300Z. REFER TO TYPHOON 17W (SAUDEL) WARNINGS (WTPN31 PGTW) FOR SIX-HOURLY UPDATES. REFER TO TROPICAL DEPRESSION 19W (ATSANI) WARNINGS (WTPN33 PGTW) FOR SIX-HOURLY UPDATES. // NNNN