MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL STORM 04W (SINLAKU) WARNING NR 001// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/311821ZJUL2020// AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT.// RMKS/ 1. TROPICAL STORM 04W (SINLAKU) WARNING NR 001 UPGRADED FROM TROPICAL DEPRESSION 04W 02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 010600Z --- NEAR 18.9N 108.4E MOVEMENT PAST SIX HOURS - 295 DEGREES AT 15 KTS POSITION ACCURATE TO WITHIN 050 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE AND SYNOPTIC DATA PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT REPEAT POSIT: 18.9N 108.4E --- FORECASTS: 12 HRS, VALID AT: 011800Z --- 19.6N 106.7E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 305 DEG/ 08 KTS --- 24 HRS, VALID AT: 020600Z --- 20.6N 105.3E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 36 HR POSIT: 300 DEG/ 09 KTS --- 36 HRS, VALID AT: 021800Z --- 21.5N 103.6E MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 010900Z POSITION NEAR 19.1N 108.0E. 01AUG20. TROPICAL STORM 04W (SINLAKU), LOCATED APPROXIMATELY 174 NM NORTH OF DA NANG, VIETNAM, HAS TRACKED WEST-NORTHWESTWARD AT 15 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 010600Z IS 10 FEET. NEXT WARNINGS AT 011500Z, 012100Z, 020300Z AND 020900Z. REFER TO TROPICAL DEPRESSION 03W (THREE) WARNINGS (WTPN31 PGTW) FOR SIX-HOURLY UPDATES. THIS CANCELS AND SUPERSEDES REF A (WTPN21 PGTW 311830).// NNNN NNNN