WTPN31 PGTW 291500 1. TYPHOON 21W (RUSA) WARNING NR 029 02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 291200Z4 --- NEAR 28.5N5 129.4E6 MOVEMENT PAST SIX HOURS - 305 DEGREES AT 10 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON EYE FIXED BY A COMBINATION OF SATELLITE AND RADAR PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT RADIUS OF 050 KT WINDS - 085 NM NORTHEAST QUADRANT OVER WATER 075 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT OVER WATER 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 190 NM NORTHEAST QUADRANT OVER WATER 170 NM SOUTHEAST QUADRANT 170 NM SOUTHWEST QUADRANT OVER WATER 190 NM NORTHWEST QUADRANT REPEAT POSIT: 28.5N5 129.4E6 --- FORECASTS: 12 HRS, VALID AT: 300000Z3 --- 29.8N9 128.3E4 MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 180 NM NORTHEAST QUADRANT OVER WATER 165 NM SOUTHEAST QUADRANT OVER WATER 165 NM SOUTHWEST QUADRANT 180 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 335 DEG/ 08 KTS --- 24 HRS, VALID AT: 301200Z6 --- 31.2N6 127.6E6 MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 180 NM NORTHEAST QUADRANT OVER WATER 150 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 170 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 350 DEG/ 09 KTS --- 36 HRS, VALID AT: 310000Z4 --- 33.0N6 127.2E2 MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT RADIUS OF 050 KT WINDS - 065 NM OVER WATER RADIUS OF 034 KT WINDS - 170 NM NORTHEAST QUADRANT OVER WATER 150 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 170 NM NORTHWEST QUADRANT OVER WATER VECTOR TO 48 HR POSIT: 000 DEG/ 11 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 311200Z7 --- 35.1N9 127.3E3 MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT RADIUS OF 050 KT WINDS - 055 NM OVER WATER RADIUS OF 034 KT WINDS - 175 NM NORTHEAST QUADRANT OVER WATER 140 NM SOUTHEAST QUADRANT OVER WATER 140 NM SOUTHWEST QUADRANT OVER WATER 155 NM NORTHWEST QUADRANT OVER WATER VECTOR TO 72 HR POSIT: 035 DEG/ 12 KTS --- 72 HRS, VALID AT: 011200Z4 --- 39.2N4 130.8E2 MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT BECOMING EXTRATROPICAL --- REMARKS: 291500Z7 POSITION NEAR 28.8N8 129.1E3. TYPHOON (TY) 21W (RUSA), LOCATED APPROXIMATELY 320 NM SOUTH-SOUTHEAST OF CHEDJU DO, HAS TRACKED NORTHWESTWARD AT 10 KNOTS DURING THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON 291130Z6 ENHANCED INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 77 KNOTS. THE LATEST MICROWAVE 85 GHZ IMAGE DEPICTS A LARGE, (APPROX 120 NM DIA) SYMMETRIC OUTER RING. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 291200Z4 IS 35 FEET. REFER TO WWPW31 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT 292100Z4, 300300Z6, 300900Z2 AND 301500Z9. REFER TO TROPICAL STORM 22W (SINLAKU) WARNINGS (WTPN32 PGTW) FOR SIX-HOURLY UPDATES.// NNNN