WTPN32 PGTW 042100 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL STORM 10W (MAYSAK) WARNING NR 013// RMKS/ 1. TROPICAL STORM 10W (MAYSAK) WARNING NR 013 02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 041800Z --- NEAR 21.6N 107.9E MOVEMENT PAST SIX HOURS - 015 DEGREES AT 03 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE AND RADAR PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND RADIUS OF 050 KT WINDS - 000 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 000 NM SOUTHWEST QUADRANT 000 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT REPEAT POSIT: 21.6N 107.9E --- FORECASTS: 12 HRS, VALID AT: 050600Z --- 22.9N 108.3E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND RADIUS OF 034 KT WINDS - 010 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 010 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 020 DEG/ 11 KTS --- 24 HRS, VALID AT: 051800Z --- 24.9N 109.1E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 36 HR POSIT: 020 DEG/ 09 KTS --- 36 HRS, VALID AT: 060600Z --- 26.6N 109.8E MAX SUSTAINED WINDS - 015 KT, GUSTS 025 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 042100Z POSITION NEAR 21.9N 108.0E. 04JUL26. TROPICAL STORM (TS) 10W (MAYSAK), LOCATED APPROXIMATELY 117 NM EAST-NORTHEAST OF HANOI, VIETNAM, HAS TRACKED NORTH- NORTHEASTWARD AT 03 KNOTS OVER THE PAST SIX HOURS. THE LOW-LEVEL CIRCULATION CENTER HAS BEEN ANALYZED OVER LAND. WARM (29-30 C) SEA SURFACE TEMPERATURES IN THE GULF OF TONKIN AND AN OVERALL FAVORABLE ENVIRONMENT INITIALLY RESULTED IN INCREASED CONVECTION OVER WATER. HOWEVER, AS THE SYSTEM MOVES NORTHEASTWARD AND FURTHER INLAND, THE FRICTIONAL EFFECTS OF LAND INTERACTION WILL RESULT IN THE BEGINNING OF A DECAY PHASE. TS 10W IS EXPECTED TO FULLY DISSIPATE WITHIN THE NEXT 24-36 HOURS. THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WRNCEN PEARL HARBOR HI. THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION. MINIMUM CENTRAL PRESSURE AT 041800Z IS 988 MB. REFER TO SUPER TYPHOON 09W (BAVI) WARNINGS (WTPN31 PGTW) FOR SIX-HOURLY UPDATES.// NNNN