WTPN31 PGTW 170300 1. TROPICAL DEPRESSION 20W WARNING NR 007 02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 170000Z8 --- NEAR 15.9N5 114.6E2 MOVEMENT PAST SIX HOURS - 360 DEGREES AT 07 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT REPEAT POSIT: 15.9N5 114.6E2 --- FORECASTS: 12 HRS, VALID AT: 171200Z1 --- 16.5N2 114.4E0 MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT VECTOR TO 24 HR POSIT: 340 DEG/ 04 KTS --- 24 HRS, VALID AT: 180000Z9 --- 17.2N0 114.1E7 MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT VECTOR TO 36 HR POSIT: 340 DEG/ 04 KTS --- 36 HRS, VALID AT: 181200Z2 --- 17.9N7 113.8E3 MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT VECTOR TO 48 HR POSIT: 345 DEG/ 04 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 190000Z0 --- 18.6N5 113.6E1 MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT VECTOR TO 72 HR POSIT: 345 DEG/ 06 KTS --- 72 HRS, VALID AT: 200000Z2 --- 21.0N3 113.0E5 MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT --- REMARKS: 170300Z1 POSITION NEAR 16.1N8 114.6E2. TROPICAL DEPRESSION (TD) 20W, LOCATED APPROXIMATELY 380 NM SOUTH OF HONG KONG, CHINA, HAS TRACKED NORTHWARD AT 07 KNOTS OVER THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON 162330Z5 VISIBLE SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 25 KNOTS. ANIMATED VISIBLE SATELLITE IMAGERY REVEALS A FULLY EXPOSED LOW LEVEL CIRCULATION CENTER (LLCC) WITH CONVECTION DISPLACED TO THE SOUTH-SOUTHWEST. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 170000Z8 IS 16 FEET. REFER TO WWPN30 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT 170900Z7, 171500Z4, 172100Z1 AND 180300Z2. REFER TO TROPICAL STORM 19W (PHANFONE) WARNINGS (WTPN32 PGTW) FOR SIX-HOURLY UPDATES.// NNNN