WTPN31 PGTW 250300 1. TYPHOON 21W (RUSA) WARNING NR 011 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 250000Z7 --- NEAR 20.7N9 152.5E3 MOVEMENT PAST SIX HOURS - 295 DEGREES AT 14 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT RADIUS OF 050 KT WINDS - 035 NM RADIUS OF 034 KT WINDS - 115 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 100 NM NORTHWEST QUADRANT REPEAT POSIT: 20.7N9 152.5E3 --- FORECASTS: 12 HRS, VALID AT: 251200Z0 --- 21.8N1 150.3E9 MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT RADIUS OF 050 KT WINDS - 035 NM RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 100 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 295 DEG/ 13 KTS --- 24 HRS, VALID AT: 260000Z8 --- 22.8N2 147.7E9 MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT RADIUS OF 050 KT WINDS - 045 NM RADIUS OF 034 KT WINDS - 125 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 290 DEG/ 12 KTS --- 36 HRS, VALID AT: 261200Z1 --- 23.5N0 145.3E3 MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT RADIUS OF 050 KT WINDS - 065 NM RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT 115 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 280 DEG/ 13 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 270000Z9 --- 24.0N6 142.6E3 MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT RADIUS OF 100 KT WINDS - 025 NM RADIUS OF 050 KT WINDS - 065 NM RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 115 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT OVER WATER VECTOR TO 72 HR POSIT: 285 DEG/ 11 KTS --- 72 HRS, VALID AT: 280000Z0 --- 25.0N7 137.8E9 MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT RADIUS OF 100 KT WINDS - 035 NM RADIUS OF 050 KT WINDS - 075 NM RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 130 NM SOUTHEAST QUADRANT 120 NM SOUTHWEST QUADRANT 150 NM NORTHWEST QUADRANT --- REMARKS: 250300Z0 POSITION NEAR 21.0N3 152.0E8. TYPHOON (TY) 21W (RUSA), LOCATED APPROXIMATELY 510 NM NORTHEAST OF SAIPAN, HAS TRACKED WEST-NORTHWESTWARD AT 14 KNOTS DURING THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON 242330Z4 MULTISPECTRAL SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 65 AND 77 KNOTS. CONVECTION ASSOCIATED WITH THE CENTER HAS INCREASED OVER THE LAST 6 HOURS. ANIMATED WATER VAPOR AND VISIBLE SATELLITE IMAGERY INDICATE THAT AN UPPER LEVEL LOW TO THE EAST IS PROVIDING ENHANCED OUTFLOW FROM THE SYSTEM, HOWEVER THE UPPER LEVEL LOW DIRECTLY NORTHWEST OF THE SYSTEM IS SUPPRESSING DEVELOPMENT IN THAT QUADRANT. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 250000Z7 IS 24 FEET. REFER TO WWPW30 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT 250900Z6, 251500Z3, 252100Z0 AND 260300Z1.// NNNN