WTPN31 PGTW 230900 1. TROPICAL STORM 29W (YAGI) WARNING NR 007 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 230600Z1 --- NEAR 22.3N7 131.1E6 MOVEMENT PAST SIX HOURS - 280 DEGREES AT 15 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 035 KT WINDS - 065 NM NORTH SEMICIRCLE 050 NM ELSEWHERE REPEAT POSIT: 22.3N7 131.1E6 --- FORECASTS: 12 HRS, VALID AT: 231800Z4 --- 22.4N8 128.7E8 MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 035 KT WINDS - 065 NM NORTH SEMICIRCLE 050 NM ELSEWHERE VECTOR TO 24 HR POSIT: 270 DEG/ 10 KTS --- 24 HRS, VALID AT: 240600Z2 --- 22.4N8 126.5E4 MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT RADIUS OF 035 KT WINDS - 075 NM NORTH SEMICIRCLE 060 NM ELSEWHERE VECTOR TO 36 HR POSIT: 275 DEG/ 10 KTS --- 36 HRS, VALID AT: 241800Z5 --- 22.5N9 124.3E0 MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT RADIUS OF 050 KT WINDS - 030 NM RADIUS OF 035 KT WINDS - 085 NM NORTH SEMICIRCLE 070 NM ELSEWHERE VECTOR TO 48 HR POSIT: 275 DEG/ 10 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 250600Z3 --- 22.7N1 122.2E7 MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT RADIUS OF 050 KT WINDS - 035 NM RADIUS OF 035 KT WINDS - 095 NM NORTH SEMICIRCLE OVER WATER 080 NM ELSEWHERE OVER WATER VECTOR TO 72 HR POSIT: 275 DEG/ 10 KTS --- 72 HRS, VALID AT: 260600Z4 --- 22.9N3 117.9E8 MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT RADIUS OF 035 KT WINDS - 075 NM NORTH SEMICIRCLE 060 NM ELSEWHERE --- REMARKS: 230900Z4 POSITION NEAR 22.3N7 130.5E9. TROPICAL STORM (TS) 29W (YAGI) IS LOCATED APPROXIMATELY 295 NM SOUTHEAST OF NAHA, OKINAWA. THE SYSTEM HAS TRACKED WESTWARD AT 15 KNOTS OVER THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON 230530Z3 VISIBLE AND INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 45 KNOTS. ANIMATED SATELLITE IMAGERY INDICATES GOOD ORGANIZATION OF CONVECTION ASSOCIATED WITH THE SMALL LOW LEVEL CIRCULATION CENTER. UW-CIMSS SATELLITE DERIVED WIND PRODUCTS INDICATE THE SYSTEM IS IN AN ENVIRONMENT OF WEAK TO MODERATE VERTICAL WIND SHEAR. TS 29W IS FORECAST TO TRACK WESTWARD UNDER THE STEERING INFLUENCE OF A SUBTROPICAL RIDGE LOCATED TO THE NORTH. THE SYSTEM IS FORECAST TO INTENSIFY SLOWLY THROUGH THE NEXT 36 TO 48 HOURS THEN WEAKEN AS IT MOVES OVER LAND. SOME REINTENSIFICATION IS POSSIBLE AS IT ENTERS INTO THE TAIWAN STRAIT. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 230600Z1 IS 16 FEET. REFER TO WWPW30 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT 231500Z1 (DTG 231351Z5), 232100Z8 (DTG 231951Z1), 240300Z9 (DTG 240151Z3) AND 240900Z5 (DTG 240751Z9).//