WTPN32 PGTW 141500 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL STORM 08W (CONSON) WARNING NR 026 02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 141200Z --- NEAR 40.8N 147.9E MOVEMENT PAST SIX HOURS - 335 DEGREES AT 29 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 034 KT WINDS - 125 NM NORTHEAST QUADRANT 125 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 100 NM NORTHWEST QUADRANT REPEAT POSIT: 40.8N 147.9E --- FORECASTS: 12 HRS, VALID AT: 150000Z --- 45.5N 146.0E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL VECTOR TO 24 HR POSIT: 005 DEG/ 25 KTS --- 24 HRS, VALID AT: 151200Z --- 50.4N 146.5E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL --- REMARKS: 141500Z POSITION NEAR 42.0N 147.4E. TROPICAL STORM 08W (CONSON), LOCATED APPROXIMATELY 306 NM EAST OF MISAWA, JAPAN, HAS TRACKED NORTH-NORTHWESTWARD AT 29 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED SATELLITE IMAGERY (EIR) DEPICTS HIGHLY ASYMMETRIC SHALLOW CONVECTION WRAPPING INTO A RAGGED LOW LEVEL CIRCULATION CENTER UNDERGOING EXTRATROPICAL TRANSITION (ETT). MODEL ANALYSIS INDICATES TS 08W IS INTERACTING WITH AN ADJACENT BAROCLINIC LOW IN AN ENVIRONMENT WITH HIGH VERTICAL WIND SHEAR AND 24-25 DEGREE CELSIUS SEA SURFACE TEMPERATURES. THE INITIAL INTENSITY IS ASSESSED AT 40 KNOTS BASED ON AN EARLIER ASCAT PASS AND TAKING INTO ACCOUNT THE SIGNIFICANT DEGRADATION OF CONVECTION. TS 08W IS TRACKING UNDER THE STEERING INFLUENCE OF A SUBTROPICAL RIDGE (STR) LOCATED TO THE NORTHEAST, AND WILL COMPLETE ETT OVER THE NEXT 12 HOURS. 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. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 141200Z IS 20 FEET. REFER TO TROPICAL STORM 09W (CHANTHU) WARNINGS (WTPN31 PGTW) FOR SIX-HOURLY UPDATES.//