WTPN31 PGTW 080300 1. TROPICAL DEPRESSION 33W (RUMBIA) WARNING NR 036 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 080000Z8 --- NEAR 8.6N4 106.3E0 MOVEMENT PAST SIX HOURS - 235 DEGREES AT 07 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER REPEAT POSIT: 8.6N4 106.3E0 --- FORECASTS: 12 HRS, VALID AT: 081200Z1 --- 8.0N8 105.0E6 MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 24 HR POSIT: 260 DEG/ 07 KTS --- 24 HRS, VALID AT: 090000Z9 --- 7.8N5 103.5E9 MAX SUSTAINED WINDS - 015 KT, GUSTS 025 KT DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 080300Z1 POSITION NEAR 8.4N2 106.0E7. TROPICAL DEPRESSION (TD) 33W (RUMBIA), LOCATED APPROXIMATELY 190 NM SOUTH OF HO CHI MINH CITY, VIETNAM, HAS TRACKED WEST-SOUTHWESTWARD AT 09 KNOTS DURING THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON 072330Z5 VISIBLE AND INFRARED SATELLITE IMAGERY AND A RECENT QUICKSCAT PASS. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 25 KNOTS AND A RECENT QUICKSCATT PASS. ANIMATED SATELLITE IMAGERY INDICATES NO CONVECTION ASSOCIATED WITH A FULLY EXPOSED LOW-LEVEL CIRCULATION CENTER (LLCC). UW-CIMSS SATELLITE DERIVED WIND PRODUCTS INDICATE THE SYSTEM REMAINS UNDER MODERATE VERTICAL WIND SHEAR. TD 33W REMAINS EMBEDDED IN THE MONSOON TROUGH. TD 33W IS FORECAST TO TRACK WESTWARD UNDER THE STEERING INFLUENCE OF THE LOW TO MID-LEVEL SUBTROPICAL RIDGE TO THE NORTH OF THE SYSTEM. THE SYSTEM IS FORECAST TO DISSIPATE OVER WATER WITHIN 24 HOURS, DUE TO A MARGINAL UPPER-LEVEL ENVIRONMENT, INCREASING INTERACTION WITH LAND AND COLD AIR ENTRAINMENT. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 080000Z8 IS 10 FEET. REFER TO WWPW30 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WARNING CENTER (NAVPACMETOCCEN). THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION.//