WTPN31 PGTW 070900 1. TYPHOON 05W (KIROGI) WARNING NR 021 02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 070600Z3 --- NEAR 29.8N9 137.6E7 MOVEMENT PAST SIX HOURS - 025 DEGREES AT 20 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 - 150 NM SOUTHEAST SEMICIRCLE 110 NM ELSEWHERE RADIUS OF 035 KT WINDS - 280 NM SOUTHEAST SEMICIRCLE 190 NM ELSEWHERE REPEAT POSIT: 29.8N9 137.6E7 --- FORECASTS: 12 HRS, VALID AT: 071800Z6 --- 33.8N4 139.6E9 MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER RADIUS OF 050 KT WINDS - 110 NM SOUTHEAST SEMICIRCLE 080 NM ELSEWHERE OVER WATER RADIUS OF 035 KT WINDS - 250 NM SOUTHEAST SEMICIRCLE 140 NM ELSEWHERE OVER WATER VECTOR TO 24 HR POSIT: 025 DEG/ 21 KTS --- 24 HRS, VALID AT: 080600Z4 --- 37.7N7 141.7E3 MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER RADIUS OF 050 KT WINDS - 080 NM SOUTHEAST SEMICIRCLE OVER WATER 060 NM ELSEWHERE OVER WATER RADIUS OF 035 KT WINDS - 210 NM SOUTHEAST SEMICIRCLE OVER WATER 115 NM ELSEWHERE OVER WATER VECTOR TO 36 HR POSIT: 045 DEG/ 15 KTS --- 36 HRS, VALID AT: 081800Z7 --- 39.8N0 144.3E2 MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 065 NM SOUTHEAST SEMICIRCLE 055 NM ELSEWHERE RADIUS OF 035 KT WINDS - 180 NM SOUTHEAST SEMICIRCLE 100 NM ELSEWHERE VECTOR TO 48 HR POSIT: 045 DEG/ 12 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 090600Z5 --- 41.4N9 146.6E7 MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 050 NM SOUTHEAST SEMICIRCLE 040 NM ELSEWHERE RADIUS OF 035 KT WINDS - 150 NM SOUTHEAST SEMICIRCLE 100 NM ELSEWHERE VECTOR TO 72 HR POSIT: 075 DEG/ 18 KTS --- 72 HRS, VALID AT: 100600Z7 --- 42.8N4 156.1E3 MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT EXTRATROPICAL RADIUS OF 035 KT WINDS - 075 NM NORTHWEST QUADRANT 150 NM ELSEWHERE --- REMARKS: 070900Z6 POSITION NEAR 30.8N1 138.1E3. TYPHOON (TY) 05W (KIROGI), LOCATED APPROXIMATELY 345 NM SOUTH- SOUTHWEST OF YOKOSUKA, JAPAN, HAS TRACKED NORTH-NORTHEASTWARD AT 20 KNOTS OVER THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON 070530Z5 VISIBLE AND INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 77 KNOTS. ANIMATED SATELLITE IMAGERY REVEALS A 13 NM EYE WITH A BAND OF HEAVY CONVECTION CLOSING IN TO MAKE A CONCENTRIC EYEWALL. TY 05W (KIROGI) IS FORECAST TO CONTINUE TRACKING NORTH-NORTHEASTWARD UNDER THE INFLUENCE OF THE SUBTROPICAL RIDGE TO THE EAST OF THE SYSTEM. THE SYSTEM WILL BEGIN TO TURN MORE EASTWARD AFTER THE 24 HOUR PERIOD AS IT BEGINS TO ENCOUNTER UPPER LEVEL WESTERLIES. TY 05W (KIROGI) IS FORECAST TO CONTINUE WEAKENING AS IT MOVES INTO AN INCREASED VERTICAL WIND SHEAR ENVIRONMENT, COMPLETING EXTRATROPICAL TRANSITION BY THE 72 HOUR TIMEFRAME. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 070600Z3 IS 36 FEET. REFER TO WWPW30 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT 071500Z3 (DTG 071351Z7), 072100Z0 (DTG 071951Z3), 080300Z1 (DTG 080151Z5) AND 080900Z7 (DTG 080751Z1). REFER TO TYPHOON KAI-TAK (06W) WARNINGS (WTPN32 PGTW) FOR SIX-HOURLY UPDATES.// NNNN