WTPN31 PGTW 250900 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL STORM 10W (MA-ON) WARNING NR 016// RMKS/ 1. TROPICAL STORM 10W (MA-ON) WARNING NR 016 02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 250600Z --- NEAR 21.8N 110.1E MOVEMENT PAST SIX HOURS - 290 DEGREES AT 17 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE, RADAR AND SYNOPTIC DATA PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND RADIUS OF 034 KT WINDS - 115 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 090 NM NORTHWEST QUADRANT REPEAT POSIT: 21.8N 110.1E --- FORECASTS: 12 HRS, VALID AT: 251800Z --- 22.5N 106.5E 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 - 090 NM NORTHEAST QUADRANT 120 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 280 DEG/ 19 KTS --- 24 HRS, VALID AT: 260600Z --- 23.0N 102.5E MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 250900Z POSITION NEAR 22.0N 109.2E. 25AUG22. TROPICAL STORM 10W (MA-ON), LOCATED APPROXIMATELY 230 NM WEST OF HONG KONG, HAS TRACKED WEST-NORTHWESTWARD AT 17 KNOTS OVER THE PAST SIX HOURS. ANIMATED RADAR DATA CONFIRMS THAT TS 10W MADE LANDFALL JUST SOUTHWEST OF YANGJIANG, CHINA AT 250200Z AND HAS SINCE RAPIDLY MOVED INLAND. ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI) DEPICTS A SHEARED SYSTEM, WITH THE BULK OF THE DEEP CONVECTION SHEARED TO THE SOUTHWEST OF THE INCREASINGLY DIFFUSE LOW LEVEL CIRCULATION CENTER (LLCC). THE MSI, ANIMATED RADAR DATA AND ANALYSIS OF SURFACE WIND OBSERVATIONS ACROSS THE REGION PROVIDED HIGH CONFIDENCE TO THE INITIAL POSITION. THE INITIAL INTENSITY OF 45 KNOTS IS ASSESSED WITH MEDIUM CONFIDENCE BASED ON AN RJTD OVER LAND DVORAK CURRENT INTENSITY ESTIMATE OF T3.0, AND MSLP OBSERVATIONS SURROUNDING THE CENTER WITH NUMEROUS SITES REPORTING 995MB. THE SYSTEM IS FORECAST TO CONTINUE MOVING A RAPID CLIP TO THE WEST-NORTHWEST ALONG THE SOUTHERN PERIPHERY OF A DEEP SUBTROPICAL RIDGE (STR) TO THE NORTH, SKIRTING JUST NORTH OF THE GULF OF TONKIN SHORELINE, CROSSING FAR NORTHERN VIETNAM AND ULTIMATELY DISSIPATING AS A SIGNIFICANT CYCLONE OVER FAR SOUTHWESTERN CHINA NO LATER THAN TAU 24. WHILE NOT LIKELY AT THIS TIME, THERE REMAINS A SMALL CHANCE THE SYSTEM COULD DUCK DOWN AND TOUCH ITS FEET INTO THE GULF OF TONKIN BETWEEN AND TAU 12. IF THIS OCCURS HOWEVER, IT WILL BE SHORT LIVED AND UNLIKELY TO LEAD TO ANY REINTENSIFICATION OF THE SYSTEM. SO WHILE 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. REFER TO TROPICAL STORM 11W (TOKAGE) WARNINGS (WTPN32 PGTW) FOR SIX-HOURLY UPDATES.// NNNN