WTPN33 PGTW 300900 1. TROPICAL DEPRESSION 18W WARNING NR 006 03 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 300600Z9 --- NEAR 19.7N7 109.4E4 MOVEMENT PAST SIX HOURS - 300 DEGREES AT 02 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE AND SYNOPTIC DATA PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT REPEAT POSIT: 19.7N7 109.4E4 --- FORECASTS: 12 HRS, VALID AT: 301800Z2 --- 20.0N2 108.8E7 MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT VECTOR TO 24 HR POSIT: 290 DEG/ 03 KTS --- 24 HRS, VALID AT: 310600Z0 --- 20.2N4 108.2E1 MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT VECTOR TO 36 HR POSIT: 300 DEG/ 04 KTS --- 36 HRS, VALID AT: 311800Z3 --- 20.6N8 107.4E2 MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 48 HR POSIT: 290 DEG/ 04 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 010600Z7 --- 20.9N1 106.5E2 MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 300900Z2 POSITION NEAR 19.8N8 109.3E3. TROPICAL DEPRESSION (TD) 18W, LOCATED NEAR THE NORTHWESTERN COAST OF HAINAN ISLAND, HAS TRACKED WEST-NORTHWESTWARD AT 02 KNOTS DURING THE PAST SIX HOURS. THE WARNING POSITION IS BASED ON 300530Z1 INFRARED AND VISIBLE SATELLITE IMAGERY AND AVAILABLE SYNOPTIC REPORTS. THE WARNING INTENSITY IS BASED ON CURRENT SATELLITE INTENSITY ESTIMATES AND SYNOPTIC SHIP REPORTS OF 25 KNOTS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 300600Z9 IS 10 FEET. REFER TO WWPW30 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT 301500Z9, 302100Z6, 310300Z7 AND 310900Z3. REFER TO TYPHOON 16W (WUTIP) WARNINGS (WTPN31 PGTW) FOR SIX-HOURLY UPDATES. REFER TO TROPICAL DEPRESSION 17W (SEPAT) WARNINGS (WTPN32 PGTW) FOR THE FINAL WARNING.//