WTPN31 PGTW 301500 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TYPHOON 28W (TRAMI) WARNING NR 040 02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 301200Z --- NEAR 34.2N 136.0E MOVEMENT PAST SIX HOURS - 050 DEGREES AT 28 KTS POSITION ACCURATE TO WITHIN 045 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE, RADAR AND SYNOPTIC DATA PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 064 KT WINDS - 055 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 105 NM NORTHEAST QUADRANT 140 NM SOUTHEAST QUADRANT 115 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 220 NM NORTHEAST QUADRANT 265 NM SOUTHEAST QUADRANT 240 NM SOUTHWEST QUADRANT 210 NM NORTHWEST QUADRANT REPEAT POSIT: 34.2N 136.0E --- FORECASTS: 12 HRS, VALID AT: 010000Z --- 40.4N 144.2E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 010 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 100 NM NORTHEAST QUADRANT 200 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 260 NM NORTHEAST QUADRANT 400 NM SOUTHEAST QUADRANT 310 NM SOUTHWEST QUADRANT 150 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 050 DEG/ 53 KTS --- 24 HRS, VALID AT: 011200Z --- 46.7N 156.1E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT 250 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 010 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 310 NM NORTHEAST QUADRANT 480 NM SOUTHEAST QUADRANT 360 NM SOUTHWEST QUADRANT 090 NM NORTHWEST QUADRANT --- REMARKS: 301500Z POSITION NEAR 35.8N 138.0E. TYPHOON (TY) 28W (TRAMI), LOCATED APPROXIMATELY 157 NM WEST- SOUTHWEST OF CAMP FUJI, HAS TRACKED NORTHEASTWARD AT 28 KNOTS OVER THE PAST SIX HOURS. THE INITIAL POSITION IS PLACED WITH FAIR CONFIDENCE USING A COMBINATION OF ANIMATED ENHANCED INFRARED SATELLITE IMAGERY, WHICH SHOWS THE EYE HAS BECOME CLOUD FILLED, AND SURFACE OBSERVATIONS FROM REPORTING STATIONS IN JAPAN. THE INITIAL INTENSITY OF 75 KTS REFLECTS SOME DECAY IN THE CONVECTIVE STRUCTURE OVER THE PAST SIX HOURS. THE ENVIRONMENT IS UNFAVORABLE WITH HIGH VERTICAL WIND SHEAR AND SIGNIFICANT LAND INTERACTION BEING PARTIALLY OFFSET BY EXCELLENT OUTFLOW, PARTICULARLY ON THE POLEWARD SIDE. THE CLOUD SIGNATURE IS STARTING TO TAKE ON EXTRATROPICAL CHARACTERISTICS WITH INDICATIONS OF DEVELOPING FRONTS AND THE DEEPEST CONVECTION NORTHEAST OF THE LOW LEVEL CIRCULATION CENTER. TY 28W WILL CONTINUE TO TRACK AROUND THE NORTHWESTERN PERIPHERY OF A SUBTROPICAL RIDGE AND CONTINUE TO WEAKEN AS IT COMPLETES EXTRATROPICAL TRANSITION BY TAU 12. 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 TYPHOON 30W (KONG-REY) WARNINGS (WTPN32 PGTW) FOR SIX-HOURLY UPDATES.// NNNN